Blogroll
Tags
6x9 Speakers alloy steel castings atv-manufacturer.com Brazing Alloy burner valve butterfly valve Carbon Steel Welding Rod casting plant casting valve china investment casting China Welding dental furnace drop-in anchor Dry Power Transformer Electric golf cars Gas Cooker valve Gas Heater Valve Gas Safety Valves Gas Shielded Welding Wire Gas Valve Gas Water Heater Control Valve gear box castings heat treatment furnace investment casting suppliers loudspeaker box Manual Gas Valves Manufacturer Of Transformer Mig Welding Wires mini loudspeaker muffle furnaces muffle furnace suppliers Nickel Alloy Welding Wire PEX Plumbing Power Transformer pro speaker Safety Gas Valve sand castings Sanitary pipe fittings self drilling screw Snow Shovel stainless steel pipe fittings Stainless Steel Welding Wires steel casting china steel casting manufacturers steel sand casting
Tag Archives: forging company
Judgment of the sticky sand castings chemical
Web Design And Seo For www.china-webdesign.com
forging company – China Manufacturer
Thank you for inquiry my forging company, Tel:0086-574-27851019 E-MAIL:thomas@steel-casting-forging.com
http://www.steel-casting-forging.com/key-forging-company-48/
Casting surface, firm adhesion of the sticky sand defects can be divided into two kinds of machinery sticky sand and chemical bonded sand. Chemical sticky sand because of the high-temperature liquid metal in the metal oxides, mainly for the Fe0 MnO and sand, silica from a chemical reaction to generate silicate ferrous (iron olivine, silicate Asia manganese, manganese olivine, etc.) The low melting point compounds, able to penetrate to the type of sand castings and molding sand with a strong adhesion, the type of sand can be a solid adhesion to the casting surface to form a chemical bonded sand, occurring mainly in the steel casting (especially the thick-walled large and high
Manganese steel pieces). Water glass sand oxygenated sodium cause cast iron to form a chemical reaction, chemical bonded sand. Machinery sticky sand is a liquid metal directly penetrate into the pores between the sand particles, depend on the metal surrounded by and hook with sand mechanical link together, there is no chemical reaction occurs.
I am the actual operation to remove a sticky sand: cast iron cavity, and then broken up into the conical flask, then add hydrochloric acid, stationary night. (Phenomenon: the beginning of a large number of bubbles, bubbles and then gradually slowing down; The next day the color of the solution is brown, sticky sand is dissolved.) Before doing the experiment, the magnet can suck a piece of sticky sand.
Conclusion: According to the chemical bonded sand to produce the principles and practice of the operation can be determined, the sticky sand is chemically bonded sand. Because the sticky sand block and no traces of sand, the final solution is dissolved can attest to that. A large number of bubbles is due to iron and hydrochloric acid to generate hydrogen. Solution and finally brown because of iron and hydrochloric acid generated unstable ferrous chloride and oxygen in the air, oxidation of the ferric chloride.
The main preventive measures to prevent chemical sticky sand:
1) selection of appropriate modeling system core materials, lost wax castings such as high purity silica sand, especially chromite sand. Also select someone advocates alkaline or neutral substances such as manganese ore sand, olive stone as raw sand. Well as the proposal selection of the sintering tendency or fusible sand can be generated in the metal mold interface, such as high refractoriness, low around the junction temperature clay. However, the effect of chromite sand for the best.
2) selection of zircon powder sintered coatings, insulating layer between the liquid metal and mold, core.
3) improve the conditions of possible mold, core compaction, reduce pouring height, reducing the pressure of the liquid metal.
Posted in Uncategorized
Tagged forging company, investment casting china, steel casting china
Comments Off
On the titanium investment casting casting technology
Web Design And Seo For www.china-webdesign.com
forging company – China Manufacturer
Thank you for inquiry my forging company, Tel:0086-574-27851019 E-MAIL:thomas@steel-casting-forging.com
http://www.steel-casting-forging.com/key-forging-company-48/
Titanium castings/">investment casting casting technology development is necessary.
Currently, titanium investment casting casting technology has been in the civil aerospace titanium and titanium structural
components are widely used in manufacturing, this technology is to meet the needs of the aerospace industry to develop.
With the titanium investment casting casting casting technique widely used titanium alloy, its quality and usefulness of our
requirements more stringent, while the level of costs is to limit its application prospects is an important factor. Although the
cost is low but the graphite casting surface quality is poor, while not suitable for production of thin-walled complex parts,
with the surface layer of refractory metal or ceramic surface layer of yttrium oxide shell can be cast out of high quality
titanium castings, but the cost is very high. In this case study a lower cost, suitable for producing complex thin-walled
titanium oxide ceramic melting system shell mold casting of the new technology has become a necessity.
Casting titanium investment casting shell system technology mainly the choice of materials
Casting titanium investment casting shell material system technology mainly wax cast titanium body mainly uses imported waxes,
the gate part of the use of lower cost, performance can meet the requirements of self-wax, respectively, after pressing, welding
synthetic wax module. Parameters as follows:
Performance self-wax wax imports drop point / ℃ 69 ~ 7170.5 freezing point / ℃ 58 ~ 5960 ~ 62 linear shrinkage /% 1.30.4 0.6
Penetration / 1/10mm12 ~ 1411 Zhao tensile strength hardness 21.119 / MPa3. 692.91 binder wetting angle / ° 89 ~ 9279 ~ 82
density / g/mm30.91 ~ 0.940.95 ~ 1 ash /% <0.010.05 of the surface layer of material parameters: the surface layer and the
adjacent refractory binder the main component of the surface layer of zirconium dioxide slurry, size of 30μm the following
organic zirconium sol, size 10 ~ 15nm surface layer and the adjacent surface sanding the main component of zirconium sand, size
of 150 ~ 300μm. The main component of the surface layer adjacent to ZrO2.SiO2 zircon sand back layer system shell and sand
silica powder material Morley
Titanium investment casting shell casting method of manufacturing technology, the analysis of the main
Titanium investment casting shell casting system are drying, dewaxing, firing three steps
1, dry: the surface layer and the adjacent surface of the drying times are 24h, the temperature is 20 ℃, relative humidity
of not less than 60%, the back layer of the drying time of not less than 4h, the surface layer with the same other conditions.
2, dewaxing: microwave dewaxing, the equipment used for large cavity size, 1500W Adjustable intensity of the microwave.
3, roasting: After dewaxing of gas shell in the roaster without calcination.
Casting titanium investment casting shell system technology mainly the choice of process parameters
System shell casting process parameters on the quality of performance in: batter ingredients that Casting powder liquid ratio,
dewaxing, and the calcination process parameters. Therefore, the choice of the system shell to repeat the process parameters it
is considered, powder-liquid ratio across the layer thickness and the coating film and the suspension rate of shell powder-liquid
ratio and calcination temperature on the residual strength at room and high temperature affect these two aspects.
Under normal circumstances, most of us use the microwave intensity of 50%, dewaxing time about 8min.
Posted in Uncategorized
Tagged casting valve, forging company, investment casting suppliers
Comments Off
On the titanium investment casting casting technology
Web Design And Seo For www.china-webdesign.com
forging company – China Manufacturer
Thank you for inquiry my forging company, Tel:0086-574-27851019 E-MAIL:thomas@steel-casting-forging.com
http://www.steel-casting-forging.com/key-forging-company-48/
Titanium castings/">investment casting casting technology development is necessary.
Currently, titanium investment casting casting technology has been in the civil aerospace titanium and titanium structural
components are widely used in manufacturing, this technology is to meet the needs of the aerospace industry to develop.
With the titanium investment casting casting casting technique widely used titanium alloy, its quality and usefulness of our
requirements more stringent, while the level of costs is to limit its application prospects is an important factor. Although the
cost is low but the graphite casting surface quality is poor, while not suitable for production of thin-walled complex parts,
with the surface layer of refractory metal or ceramic surface layer of yttrium oxide shell can be cast out of high quality
titanium castings, but the cost is very high. In this case study a lower cost, suitable for producing complex thin-walled
titanium oxide ceramic melting system shell mold casting of the new technology has become a necessity.
Casting titanium investment casting shell system technology mainly the choice of materials
Casting titanium investment casting shell material system technology mainly wax cast titanium body mainly uses imported waxes,
the gate part of the use of lower cost, performance can meet the requirements of self-wax, respectively, after pressing, welding
synthetic wax module. Parameters as follows:
Performance self-wax wax imports drop point / ℃ 69 ~ 7170.5 freezing point / ℃ 58 ~ 5960 ~ 62 linear shrinkage /% 1.30.4 0.6
Penetration / 1/10mm12 ~ 1411 Zhao tensile strength hardness 21.119 / MPa3. 692.91 binder wetting angle / ° 89 ~ 9279 ~ 82
density / g/mm30.91 ~ 0.940.95 ~ 1 ash /% <0.010.05 of the surface layer of material parameters: the surface layer and the
adjacent refractory binder the main component of the surface layer of zirconium dioxide slurry, size of 30μm the following
organic zirconium sol, size 10 ~ 15nm surface layer and the adjacent surface sanding the main component of zirconium sand, size
of 150 ~ 300μm. The main component of the surface layer adjacent to ZrO2.SiO2 zircon sand back layer system shell and sand
silica powder material Morley
Titanium investment casting shell casting method of manufacturing technology, the analysis of the main
Titanium investment casting shell casting system are drying, dewaxing, firing three steps
1, dry: the surface layer and the adjacent surface of the drying times are 24h, the temperature is 20 ℃, relative humidity
of not less than 60%, the back layer of the drying time of not less than 4h, the surface layer with the same other conditions.
2, dewaxing: microwave dewaxing, the equipment used for large cavity size, 1500W Adjustable intensity of the microwave.
3, roasting: After dewaxing of gas shell in the roaster without calcination.
Casting titanium investment casting shell system technology mainly the choice of process parameters
System shell casting process parameters on the quality of performance in: batter ingredients that Casting powder liquid ratio,
dewaxing, and the calcination process parameters. Therefore, the choice of the system shell to repeat the process parameters it
is considered, powder-liquid ratio across the layer thickness and the coating film and the suspension rate of shell powder-liquid
ratio and calcination temperature on the residual strength at room and high temperature affect these two aspects.
Under normal circumstances, most of us use the microwave intensity of 50%, dewaxing time about 8min.
Posted in Uncategorized
Tagged casting valve, forging company, investment casting suppliers
Comments Off
Food processing machinery in the production of pollution prevention and control measures were
In food production and processing of many factors affecting its quality, which is a very important factor from a variety of pollution. How to solve the pollution problem is to
ensure food quality is an important aspect. Food processing machinery for food, very serious secondary pollution, pollution prevention and control of food processing machinery
is to protect the food hygiene is an important safety measure.
1, the elements affecting the quality of food
Related to national food quality physical and psychological safety, qualified to produce high-quality food, must have three elements: (1) qualified personnel; (2) comply with
the GMP standard operating software, such as the rational process formulations and processes, qualified raw materials, the specifications and management system; (3) comply
with the QS health production hardware, including qualified production environment and production conditions, to meet the requirements of the plant, and equipment.
2, food equipment, pollution prevention and control of the production of meaning
From the foregoing, the production environment and production conditions, equipment, elements that affect one aspect of food quality. In food production, the production
environment and production conditions of the general microbial contamination, dust, particulates, corrosion, errors, and cross-contamination. Food processing machinery for the
production of pollution prevention and control includes two meanings, the first food processing machinery itself does not produce pollution, it would not pollute the environment;
the second should have effective means of controlling pollution. To this end, GMP directly involved in food production processing machinery made a number of guidance
provided, the basic point is to ensure food quality and prevent the production process may cause a variety of food contamination and the possible impact on the environment and
human health hazards and other factors. Therefore, the design of food processing machinery to meet the GMP requirements, factors that reduce pollution, and pollution prevention
and control should be good. States, although not mandatory for food companies GMP certification requirements, but the food machinery manufacturer for the food business should
be prevention and control of pollution prevention and control equipment or easily.
3, food processing machinery is designed to meet the requirements of GMP
Food processing equipment in GMP conditions should study this particular system of food equipment, as long as product design, manufacturing, technology, performance
indicators, etc., should be based on the device GMP Design Principles as the key link, in order to promote the food GMP standard equipment, the establishment and improvement
of its Details are as follows:
(1), the device should be designed to meet the requirements of food production and technology, security, stability, reliability, ease of cleaning, disinfection or sterilization,
convenient operation and maintenance of production, and can prevent errors and cross-contamination;
(2), the material should be strictly controlled equipment selection. Semi-finished or finished products with direct contact with food components should be non-toxic, non-
corrosive, does not react chemically with the food, does not release particles or absorption of food material;
stainless steel investment casting
(3), in direct contact with food equipment and work within the surface of the part surface, as much as possible the design platform, the ditch, and exposed bolts. Surface should
be flat, smooth, no dead ends, easy to clean and disinfect;
(4), outside plant equipment shall not pollute the environment, given that each type of pollution generated by the equipment is different, should be taken to the relevant dust,
leak-proof, heat insulation, anti-noise measures.
(5), in the explosive environment of equipment should be used with explosion-proof and eliminate static electricity and electrical safety device;
(6), high protein drinks, filling or packaging equipment should be in the appropriate clean room operation, the local use of 1000 and positive pressure laminar flow clean air
protection;
(7), drinks, purified water and clean compressed air piping should be designed to avoid dead ends, blind tube. Material should be non-toxic, corrosion-resistant. Inner surface
should be electro-chemical polishing, easy to clean;
(8), the friction generated when the drive trace can not avoid the use of lubricants or foreign matter, the response to the implementation of its components with the studio closed
and isolated, the lubricant may not be used for food, packaging, containers and other pollution;
(9), sterile equipment, cleaning, especially in direct contact with parts and components of food sterilization, should indicate the date of sterilization, if necessary, verify the
sterility effect.
Equipment cleaning, preferably with CIP and SIP systems;
(10), the equipment should be designed to meet the standard, universal, serialization, and mechanical and electrical integration requirements. Achieve a continuous production
process sealed, automatic detection, which is to ensure the full implementation of GMP equipment.
4, food processing equipment for the production of pollution prevention and control measures
The complexity of food processing equipment determines the functional diversity, and the pros and cons of food equipment is reflected in the ability to meet the requirements, in
line with GMP and on the prevention and control of environmental pollution. In food production, processing equipment is a key means to ensure food quality, GMP requirements
for devices aimed at reducing the production process of food contamination, to ensure food quality requirements for this purpose, food equipment in the function, appearance of
the structure, material selection and equipment for pollution prevention and control validation.
4.1, function
4.1.1, purification
Cleanliness is one of the points of GMP, it is necessary to achieve this standard in food processing, food exposed to the room where cleanliness is mainly the area or possible
contamination was machine shall be designed on the principle of purification, if the economy can not bear the clean room construction costs or operating costs, direct buy “food
sterilization machine dynamics”, is a more economical method of air disinfection and purification. Equipment requirements of the different functional forms are not the same. As
follows:
(1), the use of gas in the process equipment, especially gas and food or direct contact with food packaging materials, gas to go through a terminal filter sterilization process,
such as blister packaging machine of compressed air;
(2), bottle or other food packaging materials, cleaning equipment, process water should be taken into account the cleanliness, the general use of sterile tap water or purified
water, such as washing machines, cleaning equipment, water stopper;
(3), the production of dust generated in the device should be set to catch dust removal machine or institutions, such as shredders, granulators, tablet press, etc.;
(4), installed in a clean room or food sterilization machine controlled dynamic place, through the purification of air conditioning or ventilation system to clean and maintain the
various functions between the relative pressure, prevent dispersion of dust to prevent cross-contamination.
4.1.2 isolation
In accordance with QS requirements, food production process should avoid micro-organisms or other contaminants, isolation is a good way. As food production process and
environment is complex, in the ingredients, manufacturing, cooling, filling and packaging process there are many variable factors, so the design of food processing equipment
would need to reflect the realization of the production process in an enclosed, segregated technology.
The isolation techniques involved in the food industry to drinks, baked goods, snack foods and other shelf-life, there are strict requirements on the industry, so in production,
such as beverage processing industry in order to avoid contamination, be in the production process around the design of processing equipment and the establishment of quarantine,
isolate the operator outside the filling area, take a thorough isolation technology and automatic control system to minimize the environmental impact of the operator, but also can
greatly reduce the production environment sterile products are the risks of microbial contamination.
4.1.3, the reign of cleaning and sterilization functions
4.1.3.1, in place cleaning (CIP)
In food production, equipment cleaning and sterilization is rid of the primary means of microbial contamination. CIP is a kind, including equipment, piping, operating
procedures, cleaning formulations, automatic control and monitoring requirements of a set of technology systems. It can not remove as much as possible, do not move equipment
and piping in the case, the use of a controlled circulation of cleaning fluid, cleaning dirt.
GMP manufacturing food equipment to be clearly defined and easy to clean, especially the replacement products for all equipment, pipes and containers required to be thoroughly
cleansed and sterilized to eliminate the active ingredient and its derivatives, accessories, detergents, lubricants, cross-contamination of environmental pollutants, elimination of
residual foreign material and equipment wash water during the operation of the release of foreign bodies and insoluble particles, reduce or eliminate microbial and pyrogen
contamination of food.
4.1.3.2, sterilization in place (SIP)
SIP is a food processing machinery, another important aspect of GMP compliance. SIP system can be used mainly food production process piping lines, preparation kettle,
filter systems, filling systems, water treatment systems. SIP disassembly required for operation of small, easily automated, thus reducing staff causes pollution and other adverse
effects.
Other sterilization methods are also of concern. Such as: (1) the use of air disinfection system configuration of the plasma filled the air sterilization machine to clean areas that
can kill a variety of pathogenic microorganisms, have a wider spread of, no dead ends, there is no toxic residue, no two secondary contamination, has a good environmental
protection; (2) employees using NCL-Q8 hand auto-sensing hand sanitizer sterilization, disinfection by hand before work is not complete or did not work repeat the disinfection
process, in addition to secondary contamination of food outside the and food processing machinery will be secondary pollution, and finally superimposed cross-contamination of
food, leading to substandard food; (3) sterile purified water outlet device should be set to ensure the export quality of purified water; (4) buffer room to install food sterilization
machine dynamic , into the clean area to prevent tools, materials, packaging materials, etc. are secondary pollution of bacteria in the air.
4.1.4, on-line monitoring and control functions
On-line monitoring and control functions mainly refers to the analytical equipment, processing systems, can automatically complete several steps or processes function, which
is the connection, linkage operation and control of the premise. GMP requirements for food production should have continuity, and the shortest transfer process, thus reducing the
human and food contact time and shorten the exposure time of food, which should be the equipment design and equipment modification is an important guiding principle.
Production proven: linkage unit or process equipment before and after the production line can link into an organic line, effectively overcome the transfer order as a result of
multiple cross-contamination.
4.1.5, security protection
Its essence is to ensure food quality and safety protection, consider the following points:
(1), the flammable and explosive environment of the equipment should be used in explosion-proof electrical appliances, and has a safety alarm device and safety device. If
combustible gas alarm;
(2), there should also be considered in exceptional circumstances, the protection of high-speed operation of the device as “emergency brake” pressure equipment “safety
valve”, etc.;
(3), liquid processing equipment in the protection, only without the bottle filling, automatic waste, jamming parking, and other foreign bodies removed, the application of
instruments, meters, computer technology to achieve an early warning device operation, display, processing, instead of artificial and by experienced operators can reduce waste,
improve the equipment of automatic operation, automatic protection.
4.2 appearance of the structure
Variety of food equipment involved, for approval, and very frequently, in order to avoid cross-contamination of materials and components react, internal and external dust
removal equipment, cleaning and inspection sticker and other operations is essential, and require very strict. GMP requirements for devices to achieve the shape is easy to clean
and thoroughly clean and regulations.
(1), with emphasis on the overall structure of a simplified form, which is exposed to the device as a whole and must be local (including some intuitive visible parts) in terms
of. Under GMP point of view in simplified form, enables the device to the conventional design of the bump, slot, Taiwan has become smooth simple possession can minimize
dust, dirt accumulation, easy to clean;
(2), and production operations not directly related to the agency, should be built as designed, Built-in.
Such as transmission and other parts of the design into the built-in;
(3), part of the components in contact with food should be no attachments to materials with low surface roughness values. Polishing process is an effective means. The main
object is polished stainless steel plates, castings, weldments, etc., and polishing the outer contour should be concise, polished in place;
(4), coated structure is the most common food equipment, but also simple means. Complex organism, body, pipelines, devices coated with a sheet sealed together to achieve the
simple goal;
(5), lubrication is necessary for mechanical movement in the food system, a considerable portion of the device is a table movement. Rod drive shaft concentrated, complex
structure, they are both related to food production, and cleaning equipment have specific requirements. In any case, lubricants, cleaning agents are not in contact with food,
including the fall, into other possibilities. There are basically two solutions: First, the use of food barrier; second part of the lubrication barrier in order to ensure lubrication,
cleaning of the oil, clean water and food are not raw materials, intermediates, food ingredients in contact.
4.3, materials
GMP manufacturing equipment, materials requirement can not be the nature of food, purity, quality, impact, they need to have with the material safety, nature and intensity of use
identifiable. Which should be considered in the selection of materials and other media equipment and food contact, or corrosive, odorous environment does not react, does not
release particles or moisture adsorption is not easy, to reduce the production run, run, leak, drip and other phenomena reduce fire, explosion and other safety incidents and reduce
environmental and food contamination. Whether metal or nonmetallic materials should have these properties.
4.3.1, the metal material
Any food or contact with corrosive media and in wet environments the equipment should be used with low carbon content of austenitic stainless steel, titanium and titanium
composite materials, iron-based coating for corrosion resistance, heat resistance, wear and other coating materials should be handled with care. The site may use other non-
metallic materials, in principle, to use these materials for surface treatment of parts should be. Second, note that the same parts (components) the consistency of materials used.
Should not be an ordinary bolt with stainless steel parts with the situation.
4.3.2, non-metallic materials
Equipment in common use in food of non-metallic materials, the principle of selection of these materials is non-toxic, non-polluting, that should not be loose or easy like dregs,
lint-free. Special-purpose materials used should be combined with heat, oil, does not adsorb, not absorb moisture and other properties to consider, packing and sealing material
from the filter performance should pay attention to hygiene requirements.
4.3.3 Materials corrosion damage
Let me cite one simple example, used to wrap the tank rusted canned food, metal and oxygen in the air under the right environment arising from the oxidation of metal oxides
formed by oxidation, and lose their characteristic , making the food is contaminated, corrosion can be broadly divided into dry without water there is water wet erosion and
corrosion. Mostly dry under high temperature corrosion of the metal oxide, sulfide, and nitrogen and other chemical corrosion; and wet corrosion of the metal at room temperature
with water or other electrolyte between the electronic transfer and chemical reaction, can be regarded as a power chemical reaction, this is the vast majority of the metal
corrosion process. Metals will be affected by more than an environmental impact resulting from corrosion, non-metallic materials such as plastics, ceramics and other materials
will also be influenced by environmental deterioration, metal corrosion may not look like the symbol and weight changes, but only changes the nature of it. People serious
corrosion, will be vigilant, but mild corrosion, in some cases, can also cause serious problems, can not be ignored.
4.4, validation of equipment
Always verify GMP production of food as an important content, no matter what the validation, equipment, without exception, as the main subjects of the hardware verification
process.
The production equipment, verification is through the linkage test, this study investigated the reliability of process equipment running, the main operating parameters of stability
and reproducibility of the results of a series of other activities, so the actual meaning of the simulation of production. GMP that affect food production implementation of a
comprehensive quality control of various factors, the core is to ensure that food production process quality control, quality of the food production and minimize the chance of
accidents.
5 Conclusion
As a food processing enterprise engineering and technical personnel and production management personnel must understand the food manufacturing process and comply with
the GMP requirements of production management methods, and inseparable from the production of qualified food processing equipment meet GMP requirements. Only by fully
understanding and skills of GMP facilities of the basic requirements of food manufacturing and management in order to better equipment selection, operation, maintenance,
maintenance work, and only good at this critical link from the device to find its influence in the production process quality factors, in order to improve equipment management, to
prevent contamination.
Shows, food processing machinery for the production of pollution prevention and control of meaning, including: (1) is to ensure that the basis of product quality; (2) is a sign of
whether or not the device fully functional; (3) is the GMP requirements of the system of food equipment; ( 4) to accept the national GMP validation and GMP certification
provides assurance; (5) is the device selection, management is based; (6) is the production of smooth protection; (7) is the equipment modification and updating of the
development.
Posted in Uncategorized
Tagged forging company, forging parts supplier, Steel fabrications plant
Leave a comment
Post-crisis era played to upgrade hardware mold theme song
2008 s pace has long gone, but it brings economic impact still continues, and now many companies are still struggling in the quagmire of crisis, the first metal mold companies raised to upgrade “banner”, desires have life.
Metal mold to seize the high ground of circular economy
1960s metal mold industry began to rise in the South China Sea, in the late 1980s peak. At that time the threshold is very low metal mold industry, does not require any technical, 3 million to buy some old equipment can open a family-owned hardware mold plant. After 40 years of development, Foshan all kinds of metal, mold processing enterprises have passed million, mostly labor-intensive small businesses, located in the Sands, Xiqiao, Guicheng and other places. With the development of the domestic metal mold industry from outside the province of an increasingly competitive, metal mold industry disorderly competition began to appear, “Foshan Hardware” low-cost, quality and product mix of higher technology content have become increasingly apparent shortcomings.
stainless steel investment casting
Association Secretary-General Luo Hui said the international model, Foshan mold have a certain competitive edge. First, from the design and manufacture to the production of relevant materials, heat treatment, etc., to form a chain, highlight the advantages of integration; second, more advanced technology applications, new technologies can be widely used in the industry, quickly; third, advanced equipment. Foshan s greatest strength lies with the strengths of both private enterprises, but also a traditional industry. Into high-end market, without high-tech. Very famous manufacturer in China, Foshan, rapid development of SMEs, the mold industry has played a significant supporting role, but to keep pace with the times, the local mold industry also needs to enhance transformation. Foshan Mould current business due to inadequate funding and lack of its own brand, Foshan metal mold enterprises should increase investment in management and technological innovation, expanding the proportion of high-end products, and the establishment of the domestic sector, to actively expand the domestic market.
Recently, Foshan, advanced technical schools and the Institute of Modern Manufacturing Engineering, Zhejiang University, “marriage”, the two sides will build the “die fast digital design and precision testing center” to serve good local mold industry.
Vigorously develop the circular economy in order to promote clean industrial production, is an important manifestation of low-carbon economy. Vigorously develop the circular economy in order to promote clean industrial production, is an important manifestation of low-carbon economy. Promoting industrial circular economy pilot in order to “reduce, reuse and recycle” principle, with emphasis on resource consumption and waste emissions reduction, actively implement the preferential policies for comprehensive utilization of national resources to carry out waste batteries, discarded appliances, old furniture re-use, wood processing residues, mining waste, sewage sludge and stainless steel waste of resource utilization.
Shortage of workers moving within the hardware industry restructuring
China Labor Association and Hanan pointed out recently that the city s employment with the most substantial growth year on year compared with hiring, Guangzhou and Shenzhen year, the chain has declined. This reflects China in recent years from a structural labor shortage phenomenon, and the two cities, industrial restructuring, upgrading and relevant. He said that the Pearl River Delta region of the phenomenon of structural employment problems in the short term may still continue. Large concentrations of businesses wish to consider this fit the pace of national strategy, the central and western regions.
Hanan said that in China — the traditional gathering of labor employment in the Pearl River Delta, the two largest cities, the number of employment, to a certain extent, reflect the region as a whole. The current increase in remuneration in the region, the amount of labor is falling, showing that the labor force to attract more business more difficult, many companies from the local roll-out.
Hanan said that in 15 cities, most cities employ a substantial increase year on year, to a certain extent, reflects the economic development in most cities this year better than last year. Among them, Shenyang, Wuhan, doubling the amount of employment; and employment in the west of Chengdu, the amount of increase of 60%. The next local human resource market trends, Hanan expected, in addition to Guangzhou, Shenzhen and other Pearl River Delta region due to the phenomenon of existence of labor shortage led to market demand, the Midwest city s labor and employment markets are more prosperous, booming demand and supply of labor and employment phenomenon will occur , the average actual remuneration but also on the increase.
Order shrinking market adjustment of product structure
Automobile industry began to shrink, as do the major OEMs supporting mold or Auto Parts business owners have felt this cold spell on the market. “Do feel the die-casting mold is obvious, and simple business sense to open the mold may not clear.” Recently, Ningbo Beilun District, one already has 20 years of mold, die-casting industry experienced business practitioners who said this last year when they shop 24 hours lianzhouzhuan company, are unable to meet the needs of production orders, and this year, production at once “normal” a lot.
According to the International Association Secretary-General Luo Hui introduced model, Beilun District has more than 1,700 mold companies large and small, seven or eight of them into the mold to do business is to support the automotive industry. So, the shrinking auto industry, what the impact of Beilun Mould how much business, how to deal with? It is understood that, 89 since May, most of the auto parts business enterprises began to die down, but more normal production, accounting for only a small part of the auto parts business by the larger companies a greater impact.
Wang Hui Machinery Co., Ltd., the official said, the company s business has 60% support for the automotive industry to do, and the auto industry contraction, the mold is still a steady stream of orders, orders for die-casting mold slightly reduced, but production did not cause any impact. Dong Hao Auto Parts Co., Beilun Mould Machinery Co., Ltd., sun auto parts business accounts for the majority of the company s total business volume of less than 60 percent of businesses, starting from August this year, although the auto parts business volume has shrunk about 23 percent, but did not significantly affect production, production is more normal.
Beilun Mould Industry Association, the official said: “Since August or September of this year, a decline in corporate performance mold, but for most companies, only be regarded as fever , so that production back to normal, and for the auto parts business accounts for more large enterprises, the impact is quite large. ”
Silver Run Beilun Automobile Parts Co. is a specialized auto parts mold development and production of aluminum castings company, its auto parts business accounts for the company s total business volume of more than 95%. “Since August, the auto parts business has dropped by nearly 2 percent, a direct result of the company s total sales fell nearly 2 percent.” Guyin Ming, general manager of the company said.
According to industry sources, at present, local companies have been forced to shut down fifty-six die, and these companies are mostly engaged in auto parts to map a single processing of the processing of small workshops.
Adjustment of product structure, the development of high-end molds and products, development of high-end customer is the key out of the woods. So, can not change the market environment in the context of mold how should companies look for way out? Luo Hui pointed out that the shrinking automobile industry but also to mold into the auto parts business provides an opportunity for high-end market. Economic downturn at home and abroad a number of OEMs to reduce costs, will accelerate the pace of imports of equipment at home, therefore, highly skilled, quality, excellent mold and products will become the darling of the market. For example, the car s automatic transmission case, and die casting mold development, has always been dependent on imports, the cost is higher. But in the future, OEMs may consider domestic mold companies from select partners. Therefore, the business imperative is to integrate resources and adjustment of product structure, improve the technical level and management level, the development of high-end molds and their products.
Recently, Ningbo themselves freely Machinery Mould Co., Ltd. is negotiating with a customer in Japan automatic gearbox shell mold to develop issues. Zhang Qun, general manager of the company told reporters that this customer is the industry s top five Japanese companies, with the company to develop sophisticated mold, will not only enhance the company s technical strength, but also a stable order.
“Auto parts are our main business, we can not give up because of auto industry contraction core business.” Automobile Parts Co., Ltd. Ningbo East Vice President Xiaoqiao Sheng Hao said that since the beginning of this year, they increased R & D investment efforts to enhance the proportion of self-developed products. In their view, only the development of sophisticated molds and products in order to win the market. “Earlier this year, we are suddenly introduced 25 R & D personnel, but also our employees a total of 180 people.” Xiaoqiao Sheng said.
Reduce the proportion of auto parts products, to improve other products, production scale, is one of the ways out of the woods. In addition to improved technology and management level, the East Hao s another approach is appropriate to reduce auto traffic. Xiaoqiao Sheng said that at present, they have more than 60% of business is to do the matching vehicle factory. In the future, they will be adjusted to 5 percent. At the same time, they will also develop some new automotive-related products, such as washing cars to use the gun to the head, car crash bar, fender, etc., as well as some leisure travel products, in order to reduce the auto industry contraction with to adverse effects.
Meanwhile, Dong Hao The company also hired a permanent residence in Taiwan, the overseas markets are more familiar with foreign trade practitioners, the purpose is to fully explore overseas markets. Overseas market is the main target customers to Parts Factory. “Domestic and foreign, auto industry and the coordinated development of other industries.” Xiaoqiao Sheng said, “do I believe that companies not only survive this crisis, but also to develop better.”
These days, the sun Beilun Mould Machinery Co., Ltd. is busy on three production lines of electric tools. The company s deputy general manager Zhang Shijie told reporters that the current auto industry contraction, but the power tools market demand is steadily rising. To this end, they intend to increase the power tools of production scale, in order to balance the volume of business. “It is expected in March next year, the company will build four power tools production line, annual production capacity will reach 30 million units.” Zhang Shijie said.
Innovation-driven qualitative leap in hardware industry
It is reported that the new materials, new processes, new technologies produced great advances in the power and progress of the hardware quality of the product, making the hardware industry has been a qualitative leap.
In 2010, the 17th China International Hardware Show, some of the hardware tools businesses more than the traditional manual release system, it is also introduced a revolutionary series of new products.
New products trying to get rid of the traditional form of a single hardware features for the mix of materials and colors, a combination of function and form, to the direction of human development, research and development of light, thin, short, small, new hardware, the use of ergonomics in the design bold and brave ideas, materials, elegant, practical, based on in contentment, more appreciation of the arts.
Hardware development and use of new materials is greatly promoted the new intelligent, sophisticated, the process. At the same time contemplate the new design under the guidance of new hardware models is covered with a charm. New materials, new processes, new technologies, creating a hardware real quality.
This is precisely the development of world science and technology, new materials, new processes, new technology advances in the use of great force produced. Promote the social process of the hardware industry, the new material is not only promoted the quality and functional hardware products, but also to lead the industry trend.
Government Open SMEs survivor
Chronic illness in the hardware business financing, has been hampered the development of cancer in Wenzhou. This year s collective outbreak, although expected, still amazing, private lending has spread chaos throughout the Wenzhou. From the central down to the common people, in 2011, Wenzhou has been living in the realization among the people, October 3-4, Premier Wen Jiabao went to Wenzhou research, want to save the Wenzhou enterprises. Zhejiang Government is also working 7 days to resolve the problem, proposed creating a new situation in Zhejiang industrial upgrading.
“Commodity, big market” model is not only to Wenzhou, Wenzhou has brought unprecedented opportunities for development, but also to China s development into a fresh “blood”, has been the Wenzhou model are the Chinese people relish. The Wenzhou model of development by virtue of this, the achievements of the “locks of all China”, “China Hardware Capital ware”, “China Hardware Capital buckle” and “gold card.” Wenzhou Hardware has become China s hardware industry code, leading to the development of hardware industry. Therefore, if the hardware business in Wenzhou to weather the storm, has become a common hardware people “worried” thing.
In the hardware business for the plight of September 7, four session of government: the government departments to do service work, the service throughout the whole process of government, civil service to firmly establish the masses, the grassroots is the bounden duty service, not service , the service is not dereliction of duty sense of place, standing on grass-roots level, the position of enterprises and the masses of the problems and doing things. In particular, enterprises should strengthen the current service, to take the initiative to come to understand the situation, for the enterprise to solve problems. To improve efficiency, people and businesses around the current most pressing, most urgent problems, so tonight on events soon to do on everything. To innovative services, expand service channels, for approval by improving service, the months of research, the next visit interviews, twinning helping, home care, etc., to extend to the lowest level of administrative services, to facilitate the masses for the masses, for the enterprise to solve practical the problem.
Government departments have come up with their own attitudes, raised the “save” the banner of SMEs, which could indeed ease the financing difficulties in the hardware business, allowing them to survivor.
Chinese valve manufacturing industry has now lead the world.
Valve industry in national economic development, as an important part of preparing manufacturing, play a very important role. As the level of China s domestic and international valve manufacturing advanced level there is still a gap, a lot of high-parameter, high temperature and pressure, high-pounds of the original key has been imported valve, the valve in order to urge the localization of the State Council issued ” speed up the revitalization of equipment manufacturing industry views “, the national authorities made in accordance with national requirements of major equipment, has made a series of major plans, led by the National Development and Reform Commission, China General Machinery Industry Federation and China Machinery Industry Association, together with the deployment of major equipment developed for the relevant area of ??the valve localization program, and has coordinated with relevant departments, is now made of the valve the valve industry in China have formed a consensus.
After 20 years, especially in recent years, scientific research, design, manufacture and users a combination of efforts, joint research, has been fruitful. In the “East”, “South”, “Three Gorges” a million kilowatts of nuclear power units, one million tons ethylene renovation project, supercritical and ultra supercritical thermal power, oil and gas pipelines, coal chemical industry, large ships, cities sewage treatment and other major projects and nuclear power engineering equipment, petrochemical, metallurgy, power station and other areas, in addition to a small amount of high-parameter safety valve and control valve to be imported, the achievement of the localization of the valve, thus changing the material and equipment subject to long valve key foreign situation. And to seek as much as possible in the short term major projects and key valves to achieve localization, or part of the localized, so that the valve manufacturing in China lead the world.
From zero speed up the pace of Chinese-made valve valve localization, has always been an arduous task. Localization of the original advocates the valve is not easy, also encountered layers of resistance, more debated. After the older generation valve industry experts and the nuclear industry sub-sector research and research coordination, can be used domestically, with domestic firm, in the localization of walking a fine line as far as possible, for the country to save foreign exchange.
China s domestic valve is nothing of the original, from scratch, and from nuclear power plants and nuclear chemical and petrochemical equipment based on the localization of the beginning in the 1980s took over the first nuclear power plant about 600,000 key engineering projects, and later When engaged in Qinshan Nuclear Power Plant, Nuclear Engineering, Ningbo valve factory as the localization of pipe valves pilot enterprises for valve contributed to localization. China s reform and opening up efforts to increase the localization of the valve, the valve industry with the manufacturing process has improved continuously, and many enterprises to adopt advanced resin sand molding line castings off the box blank, casting chemical composition using direct-reading spectrometer for rapid analysis , the use of cobalt-60γ-ray detection of casting defects; forging die forging and multi-use tires and other advanced forging technology. In the 21st century, the accelerated pace of the valve made in the localization of the major projects with the results.
The State Council issued the “speed up the revitalization of equipment manufacturing industry views”, the drive the overall revitalization of equipment manufacturing industry. To this end, together with China National Development and Reform Commission and the China Machinery Industry Federation and other national authorities through the Association has long been proposed for the “15″, “during” the progressive realization of the localization of major equipment valve plan, which proposed to achieve million-kilowatt nuclear power plant critical valves, valve megaton large ethylene equipment localization, etc., through the introduction of key technologies and self-development, and in the regulations and policies to a number of concessions, so the valve-related enterprises to seize the opportunity to actively active state to do the valve localization. Consensus from top to bottom, the valve localization has made encouraging progress.
Nuclear localization of the valve made significant progress in nuclear power plant is an important key to the valve device, a long time, mainly rely on imports of foreign technology blockade has been imposed on my country, to earn high profits, and thus become a constraint on China s nuclear localization one of the bottlenecks. Development of domestic nuclear valves started in the early 1960s. Up to now after decades of efforts, China has formed a scale of nuclear valves design, test, manufacture, testing capabilities, and Qinshan nuclear power plant, two construction provides a large number of nuclear valves for nuclear valve made important contributions to localization.
Domestic backbone enterprises positive action initiative to overcome the difficulties for the country share those concerns, to provoke a nuclear R & D and manufacture of valves made of the burden. To the SUFA, Shenyang Golden Age, Dalian higher number of old enterprises, and achieved the qualification design and production of nuclear valves, valve in China s nuclear localization process to achieve results. At present, there are 19 enterprises of the National Nuclear Safety Administration issued a civil nuclear pressure equipment design and production license is, can design and manufacture nuclear valves. Its design, production valve types are gate valve, globe valve, regulating valve. The 19 companies with the design and production of nuclear grade valves ⅰ enterprises 5 (in the SUFA, Shen high, big high, the valve, Shanghai good work). At present, China has successfully developed a nuclear pressurized water reactor nuclear island ⅰ level electric valve, check valve, electric bellows globe valve, fast breeder reactors use nuclear ⅱ level electric cut-off valve bellows has a high sodium level nuclear valves. In 2003, the SUFA to COSTIND declared a “critical valve design and manufacture of nuclear technology research and development” project, decided to fully develop the key five nuclear power plant valves to break the international monopoly. In 2006, the National Development and Reform Commission review of China Machinery Industry Federation demonstrated in SUFA, Shenyang and Dalian flourishing high “million-kilowatt pressurized water reactor nuclear power plant valves made of industrial projects,” three nuclear localization valve project, implementation of the country will form the core of the nuclear localization of the power valve, so that nuclear power projects under construction in China is no longer controlled by others.
Last year, with the red river, Ningde improved second-generation nuclear power projects under construction and three, Haiyang nuclear power technology such as the introduction of three generations after the commencement of the work of digestion and absorption, the localization of nuclear power equipment for nearly two years have marked progress. Qinshan Phase II expansion project to rely on, the valve industry in recent years have been developed with the advanced level nuclear valves and valve manufacturers through technical evaluation are: the SUFA has completed the nuclear level of fast start closed isolation valve, regulator of electric pressure relief valve, low dropout voltage swing check valve and two hard-core duct sealing containment isolation valve 14 specifications, the variety of prototype manufacturing and testing through a variety of types and provincial identification; Jiangsu supernatural powers of the valve core 2 containment isolation valve; Dalian high nuclear grade valve valves, gate valves and check valves; Shanghai plant main steam isolation valve ball; Jiangsu Wujiang Dongwu mechanical nuclear grade and nuclear main steam safety valve safety valve and other auxiliary systems level 2,3; Universal Valve Group Zhejiang nuclear two cut-off valve; Power Station Auxiliary Equipment Factory, Changzhou, Jiangsu hzd, hqb type 1e nuclear grade valve actuators; Yangzhou power equipment factory built device with a buffer of nuclear grade valve actuators; Tianjin-day two-way valve k1 class nuclear grade valve actuators; Shijiazhuang valve an air separation plant nuclear grade valve; Suzhou Neway Valve nuclear level electric valve, electric valve core 2, core three electric valve; and Shenyang Golden Age of the nuclear level high pressure electric gate valve and nuclear level Swing check valve and pressure valve plant in Suzhou high nuclear grade valves and a number of nuclear valves, has passed the National Federation of Machinery Industry sponsored research and new technology sectors identified. Recently, SUFA and complete nuclear level, the nuclear two isolation valves open and close rapidly, the proportion of spray valve, seal air containment isolation valves, electrical pressure relief valve, main steam isolation valves and other prototype development, and Type-tested and other related assessment and completion of the cold function test, to nuclear power engineering needs.
Meanwhile, Pakistan s Chashma Nuclear Power Plant Phase II project c2, in addition to high-tech control valves, other are localized, including air release valves, back pressure regulating valve core 2, core 3 pneumatic regulating valve in part by the Shanghai Automation Instrumentation seven plants provide; process Central SUFA valve part is provided by the Tianjin Bailey electric actuators provide two-way. Zhejiang East China provided nuclear electric gate valve.
The past two years, nuclear valve manufacturing companies in the Guangdong Nuclear Power Group, respectively, and other owners of units in the nuclear group, the joint in a number of key R & D on nuclear valves made progress. According to the current Qinshan, red river project tenders nuclear valves, valve industry has been combined with the ability and performance, Red Valve Unit 1 and 2 along the river will reach the localization rate of 35%; for another 1 to 2 years research and development, nuclear valve manufacturing will have a major breakthrough in the Unit 3 and 4 on the red river is expected to achieve the localization rate of 60%.
With the successful development of nuclear valves, valve industry, some of the products indicates that China has entered the high-end, reflecting China has reached a certain valve manufacturing standards. The products in the market is vast, but also for the valve industry provides new opportunities. China Guangdong Nuclear Power and the SUFA, Dalian High-valve, valve, Jiangsu supernatural powers signed a hard-seal butterfly valve lock valve hydraulic control valve stainless steel ball valve gate valve filter valve Xuan Yu, “China-made nuclear power valve of Development Cooperation Agreement “, marking the China Guangdong Nuclear Power Group and joint research and development of domestic enterprises nuclear valve valve work has already started.
Rapid development of domestic high-end valve
1, the localization of the previous year-end valve, the valve s self-developed south, and through hundreds of experiments large diameter of 5 m vacuum valve came into operation, the valve into the first large-scale defense of domestic wind tunnel tests. For the test device provides two-way vacuum seal valve and special regulator, boost, “Chang E” Ben has made important contributions. In 2005 the company successfully developed the world s first zero-leak “adjustable metal sealing butterfly valve,” alternative energy, materials, a greater amount of the valve, globe valve, has successfully developed far below the international standard closing time of 0.5 seconds The “quick-closing valve electro-hydraulic linkage” domestic high-end valve.
Suzhou in SUFA and high pressure valves, high pressure valves for China s Lanzhou nuclear chemical system provides a number of high-end localization of the valve, including: the SUFA was originally in the 60-70 years, independent research and development of the torpedo vacuum valve, drum vacuum valve products, has served as a main product localization and high-volume production, a key chemical system valves in nuclear torpedoes vacuum valve to achieve a localization. Shanghai Valve Factory in the past 40 years involved in a number of major national projects, such as the 1962 national nuclear chemical enrichment project to provide stainless steel valves.
Localization of the recent critical valve also yielded results: Valve Group and Zhejiang University Paul a joint research and development of high-end ultra-low temperature valves, valves for the Shenhua Group, Zhejiang take over of “coal hydrogen” section in the localization of a number of devices R & D of high temperature resistant metal seal made of ball; Lanzhou High Pressure Valve Co., Ltd. of Sinopec Puguang independent research and development of anti-localization of high-sulfur gas pressure flat gate valve recent successful trial; Zhenjiang City, Jiangsu Province, valve plant Energy saving R & D play a series of special valves and other sulfur recovery unit, and the country gradually promote the application of these high-end valve to achieve a localization. Beijing Aerospace Petrochemical Technology and Equipment Engineering Company developed “the ability to meet the backup relief valve fast switching device” and “non-flow-type pilot-operated safety valves suddenly open,” two new localization.
In SUFA, Lanzhou High Pressure Valve has become large-scale ethylene megaton complete sets of equipment of special valves made a major supplier of SUFA s self-developed hydrogen device the Qing Jiao flat gate valve has been successfully applied to the East chemical localization projects. In SUFA available only in the field of special valves nearly $ 100 million for technology research organization dedicated R & D, so that large ethylene equipment special valves made of a major breakthrough. Zhejiang East China successfully developed the hydrogen valve and valve ethylene valve, through continuous efforts to fully solve the technical problems, the development of China s first hydrogen valves and new products such as ethylene valve and into a butterfly-free wear spherical only return valve, Chengdu Branch of Chinese low-temperature test equipment, high-temperature test equipment; Sijie Chemical Development of “co2 gas pressure regulating valve special reference to urea” in Zigong City, the second pressure valve development and production of wear-resistant slag, Katz development and production of high-temperature valve; Sichuan Power Smart Valve industry encryption security table before the valve, the valve to rewrite the domestic dependence on imported hydrogenation. Seong valve successfully developed large-diameter hydraulic turbine inlet valve, ring-jet flow control valve, 2.5 m and 3 m turbine inlet valve vacuum valve.
2, supercritical, ultra-supercritical thermal power generating units and the localization of Harbin, Harbin Boiler valve valve valve technology of foreign companies face the blockade, in 2004, developed China s first super-critical block valves, but also have R & D Yuhuan Power Plant Unit 1 for the one million kilowatts of ultra-supercritical units supporting unit supporting supercritical steam and water valve, check valve, plug valve and water pressure test units supporting the whole amount of supercritical type safety valve, large diameter high gate end of the valve. And supporting the current network has been successfully run, the move indicates that China has mastered the world s most advanced ultra-supercritical thermal power technology, but also to our power generation equipment manufacturing capacity and technical level on the stage. Last year, they forge welding of large diameter high pressure power station valve also been successful.
Henan Kaifeng High Pressure Valve for the highest degree of localization million units – Huadian Power International Zouxian ultra-supercritical generating unit # 8 group, the successful development of 2x1000mw ultra-supercritical generating units and a number of electric blowpipe valve control valve to achieve domestic the largest units, the highest parameters, the maximum diameter of the valve localization. In related fields hit a number of “first in the country”, and ultra-supercritical generating units for our special valve made a significant contribution to the localization; Zigong Dongfang Boiler valves for the 600mw supercritical units Datang Xiangtan 一号 furnace provides 172 Taiwan forged globe valve, and subcritical, supercritical boiler units supporting arguments valve; Southern Valve has recently successfully developed supercritical and ultra supercritical localization valve has reached the advanced level.
3, the localization pipeline valve key Zigong High Pressure Valve Forged Steel welded large diameter pipe valve, Shanghai Neles? Jamesbury valve three-stage pipeline structure of the valve, Chengdu wind large diameter flat gate valve valve, Suzhou Neway Valve ball in the “West-East” pipeline successfully. And Suzhou Neway Valve, Zhejiang Wuzhou valves have been successfully developed 56-inch large diameter long pipeline welded ball valve, the weight of 40 tons, the highest in China valve; Bethel valve group self-developed domestic The first all-welded ball valves, designed for underground pipeline laying on the Shanghai Neles? Jamesbury valve independently developed all-welded ball valve through the national technical appraisal; Lanzhou established to produce high-pressure high-pressure valves valve for the main products of the production scale, technology and equipment in the industry a leader, now the new large-scale production of Lanzhou valve group, manufacturing base.
Valve made of the future direction of development in the localization process to achieve the valve, according to China s equipment manufacturing industry, especially in the valve industry in national economic development in the position, the valve of the companies pay attention to strengthening the capacity of independent innovation, targeting major national industrial projects, major scientific and technological innovation projects, the implementation of major breakthroughs, to adjust our product mix to create enterprise innovation system, to enhance the comprehensive competitiveness of enterprises so that enterprises face the fierce market competition and various industry continues to make technology and economic needs, so that each of our businesses contributed to the localization of the valve.
China Branch of the valve through the Association executive vice president, chief engineer of Zong in SUFA recently listed the future development of the valve industry valves made specific localization of the direction and requirements, a clear localization of the valve further to achieve the goal: the future valves in nuclear power, ultra-supercritical thermal power generation technology, high temperature and pressure valve is the main research direction, we need to carry out its key technology breakthroughs; in large pumped storage power plant, also made a large diameter of the ball, including castings and forgings, control and design techniques; large-scale nuclear power plant in one million kilowatts, including valve design, manufacturing, laboratory tests, experiments need to re-type attack projects; in large-scale ethylene, coal chemical energy transformation, pta large-scale installations and other special equipment and operation are required to key shuttle valve. The valve industry for our future development, technology research have clear objectives, to establish the industry s product development and industrial innovation platform that allows our business to form a technological innovation system. However, the valve industry is product quality, high precision is still lagging behind other aspects of the field, on the whole country can not meet the needs of high-tech industry development in the petrochemical industry such as high-pressure polyethylene of high-pressure valve Bowen, ethylene cracking furnace The clear focus flat valve, more than 2500 pounds of ethylene, or ultra-low temperature ultra-high temperature and pressure valves also need to import the key, some special material valves, control valves including all dependent on imports. Coal energy future major work for the state the main direction of stone in the coal hydrogenation, after hydrogenation heating and structural requirements for valve materials is high, many conditions need to cast from, we need to overcome the key cast.
Nuclear valves required sealing performance and reliable nuclear power plants currently several key nuclear valves rely on imports. Although the valves were better capture, but a greater gap between the valve actuator, drive by a lot of critical import. In its series of special packages and supporting other conditions, there are gaps. For example, the state of valves used in many key projects, such as high parameters, environmental protection, energy saving valve is also dependent on imports. To understand the state of its key industries, engineering, localization of the valve, the valve to achieve the full Chinese localization.
Zhang said: valve industry should be based on optimizing the industrial structure, energy saving, innovation, reform and opening up, people-oriented, etc., accelerate the establishment of self-development of technology innovation to develop new systems. Valve industry products to the “Eleventh Five-Year” in the late localization, special valve on the large-scale ethylene to cover 95-100%, coal chemical industry mainly special valve key to solve the high-temperature hydrogenation sealing materials, as well as drive to attain some control over 90%; ultra-supercritical power plant technology, etc., the proportion of domestic valve to reach 80% -100%. To achieve the key technologies critical valves and localization of the arduous tasks, as long as we work together valve counterparts around the same goal, the valve will be able to achieve localization.
Seize the opportunity to urge the valve co-localization of higher level, executive vice president leaves China declared 2008 the international co-valve five-second meeting clearly stated: the valve industry in national economic development, as an important part of preparing manufacturing, play a very important role in the important areas of people s livelihood, such as the one million kilowatts of nuclear power, large-scale high-efficiency clean power generation, supercritical thermal power, gas-steam cycle, large-scale hydroelectric and pumped storage, large air-cooled power plants and other large-scale circulating fluidized bed boiler unit and so on; one million tons of large ethylene equipment, xylene, terephthalic acid, polyester equipment; large-scale coal chemical equipment; large underground coal mining, lifting and cleaning delivery equipment; large ships, large chemical vessels, aircraft, cng; air pollution control urban industrial wastewater treatment, distribution network and other aspects of transformation of a large number of domestic demand for supporting the valve to the valve manufacturing industry to meet national requirements, to achieve the industry s scientific development, the first development, sound and rapid development, domestic and foreign markets to seize the opportunity to forge ahead, and strive to create a worldwide China s main production base of the valve.
Market Watch: Zhejiang reinforce the architectural hardware industry to base
Since the 1990s began in the late Yuan Li Group fully engaged in building hardware industry – round pin, since the production of galvanized wire, Suichang strong support in the authorities, metal products and architectural hardware industry booming, has become the leading industry in the county economy. As of the end of 2010, has all kinds of metal products and metal products company hundreds of buildings, of which 28 enterprises above designated size, industrial output value 7.45 billion yuan, profits and taxes 290 million yuan, number of employees reached more than 8,000. The main products covers the architectural hardware in the ordinary round steel nails, galvanized wire, black wire, construction steel, wire, common electrodes, carbon dioxide gas protection welding wire, all kinds of high-frequency welded pipes, all kinds of hot-rolled coil, more than 300 series stainless steel billet and pull through pipes, fan accessories, large forging-type pipe flange contacts, all kinds of precision casting, auto bearing cone in high-grade, small drilling equipment, machinery parts, home of the types of aluminum, copper pendants, handle, zipper aluminum accessories, as well as test equipment and power equipment, water tanks and other equipment manufacturing drawing. Complete range of products, both kinds of steel used in construction, there are architectural hardware products and welding materials, and various mechanical parts and a small amount of equipment manufacturing industry. To the five categories has been able to produce more than 400 varieties of thousands of specifications of metal products, which established by the Yuan Group and produced under the common round nails, galvanized wire, respectively, the annual output of more than 30 million tons and more than 10 million tons, has become a building with a round wire nails and galvanized the largest producers, accounting for more than 85% of Zhejiang market share.
In October 2005, China National Hardware Association awarded Suichang “China hardware industry base construction,” the honorary title. October 2010, Suichang metal products industry has been included in the province of Zhejiang Provincial Government second massive economic restructuring and upgrading to a modern industrial clusters demonstration zone pilot projects, Zhejiang Province, to become one of 42 pilot areas. Industrial base is named after five years the “Eleventh Five-Year” period of extraordinary development in the past five years, Suichang down value this hard-won honors, at the base of the cultivation, growing, building hardware industry in the development of massive economic be more emphasis on scale, pay more attention to scientific and technological nature, pay more attention to sustainability.
In the provinces, municipalities and by letter (trade) sector and the China National Hardware Association, Hardware Association of Zhejiang Province under the guidance of the enterprise and the joint efforts of the whole county, Suichang s industrial base has made cultivation of new results, metal products and architectural hardware industry embarked on a new level, and gradually move to a modern industrial clusters.
Further expand the scale architectural hardware industry, a substantial increase in product yield
Since the late 1990s involved large-scale architectural metal nails, silk production, the development has Suichang Zhejiang Province and the country has become an important common nail and galvanized wire-producing counties, to further expand business scale, product output increased year by year , and further product variety is complete, the end of 2004 the county nail silk production reached nearly 20 million tons, to cultivate the domestic nails, silk production key enterprises – Zhe Jiang Yuanli Metal Product Group Co., Ltd.. The end of 2005, received the honor as the industrial base, a higher level Suichang architectural hardware industry, when industry-wide sales revenue of 2.55 billion yuan, respectively (including architectural hardware industry about 15 billion), profits and taxes 104 million dollars to complete the wire nail production of 23 million tons. From 2008 to 2010 the county s architectural hardware industry a higher level, nails, wire, wire mesh, hardware tools, welding, zipper accessories, gas shielded welding wire products such as production year after year, an annual increase of 10-15% incremented. A few years ago despite the financial crisis, exports fell more, but “Diwai loss Tsutsumiuchi up”, the main domestic market, nails, wire the domestic market share from 80% to 90%, the architectural hardware industry to achieve a smooth growth in 2010, metal products and metal building hardware products output reached 110 tons, of which architectural hardware nails, wire, wire mesh, welding materials, production reached 500,000 tons, industry-wide sales revenue 7.2 billion, including regulations on business sales income 6.8 billion, profits and taxes 385 million yuan.
Suichang received the honorary title of the national industrial base in the past five years, first tightening macro-control by the state, further increasing the external constraint mechanism, raw materials rose sharply, the RMB appreciation, export trade to further increase friction, increasing competition among enterprises affected Since the second half of 2008, the whole industry has emerged exports fell significantly, a lot of product prices and other unfavorable factors, the second half of 2010 to now there are complex and difficult situation, but the metal products and construction Suichang hardware industry rose to the challenge, weight struggle, holding high the China National Hardware Association awarded the national industrial base this banner, in the fierce market competition, stroke wind blow waves and move forward. Suichang metal products and architectural hardware industries product yield a significant increase in economic efficiency has improved significantly, increasing variety of specifications, and architectural metal products, metal industries, accelerate the development phase, and further reinforce the national industrial base of the industrial base, a key province massive economies. Industrial base in the cluster play a benefit, to expand the industrial base of the scale, reinforce the foundations of industrial base, five years, the county focused on doing the following aspects:
1, base pay close attention to technological input to expand the scale of
In October 2005, although named as a national Suichang industrial base, but, and the country, the province developed hardware industry, county, city than its industrial base in terms of number of enterprises, industrial scale, technology content, etc., still exist the gap. In order to further enlarge and massive economies of scale, the most important thing is to increase business investment, big hardware industry total. To this end five years, the county has completed a Feng Li have metal products Co., Ltd. 100,000 tons black wire production line expansion, Yuan established an annual output of 214,000 tons galvanized wire production line expansion, up 200,000 tons per ordinary steel Sila Si transformation of the production line, Yucheng s annual output of 500,000 sets of hardware tools production line, S Welding Materials Co. 200,000 tons (a 100,000 tons) of carbon dioxide gas protection welding production line, the new macro Steel Products Co., Ltd. annual output of 200,000 tons of high-frequency welded pipe production line, meaning of die-casting Co., 500 tons of zipper die casting production line, built Genpo (Okamoto) metal products company roll production line, complete is 30,000 tons of stainless steel pipe industry pull through pipe production line, built a large forging Hoi Shing Circle contacts flange pipe production line, then completed a large number of gold casting precision casting special technical transformation of enterprises, to invest nearly 300 billion new macro hot-rolled coil steel products, the company projects will put into operation. In addition, a large number of other small metal products companies emerged as a strong complement to the enterprise backbone. According to incomplete statistics, since late 2005, Suichang hardware industry was new and in more than 30 technical transformation projects, new investment in fixed assets of more than 10 billion yuan, after completion of these projects is expected to be added industrial output value was 50 billion in new profits and taxes 300 million yuan or more, adding dozens of varieties of all kinds of metal products, the number of 800,000 tons or more, the county of metal products to further expand the scale of architectural hardware products, further consolidate the foundation, the results further show training .
2, the combined effect is more obvious, industry impact, further deepening
Industrial base named before, Suichang metal products and architectural hardware industry in the country unknown. Since the base name, especially after several companies to participate in the organization s annual Hardware Show in Shanghai and other related activities, to participate in the China National Hardware Association bases across the country after the exchange of experience, Suichang hardware industry in the country to further enhance the visibility, reputation to rise further five years, the county has received and the province of Hebei Anping Wenling, Yuhuan and other brothers and base units sent study tour guide to visit more than 100 people, the county has repeatedly send people to the field of advanced counties Visit to learn from each other. At the same time, with the honorary title of the acquisition, especially outside of the province Taizhou, Wenzhou and other places come here especially for customers, the company negotiate business with the county to further expand domestic and international sales channels, especially with the base The name, county in the development of metal products and architectural hardware industries to further improve the software and hardware environment, a more complete base facilities, has attracted the province, Wenzhou, Taizhou and other metal products industry, 10 enterprises settled in the county of metal products characteristics of industrial parks, there have been Yucheng Feng pipe industry, S Welding, steel products, the new macro, Tianli hardware, Bai special tube industry, the Far East foundry, Hoi Shing Circle and other metal products companies to invest in our county plant, the introduction of the number of enterprises than “15″ to increase five times over. Cited by the outside inside, the county s massive metal products industry to further expand the scale of economies, the impact was deepening, the national economy of the county, especially the industrial economy of the support force significantly enhanced.
3, to extend the architectural hardware industry chain
Since the national industrial base named after, in addition to full Suichang the combined effect of industrial base, industrial base and further improve the visibility at the same time, in recent years on how to expand the base of the scale, architectural hardware to expand the industrial chain extension, the county has done a lot of work, one for the previous high-end architectural hardware products such as various types of nails and hanging in the production process in the absence of supporting metal surface processing industry and the electroplating industry to solve the problems of small and scattered, to encourage private enterprises launched a high-end electroplating production line, the introduction of imported equipment, promotion of new plating process, the local architectural metal products metal surface treatment technology has greatly improved. Second, the hardware equipment manufacturing industry began to expand. Current production for the domestic high-grade die-cast metal zipper head the actual dependence on imports of basic equipment, the local meaning of the company to begin developing the aluminum die-casting and zipper assembly equipment, and has been a success. The hardware and architectural hardware industry Suichang began to higher areas of expansion.
4, increase export-oriented architectural hardware industry
Nails, wire and other architectural hardware has been the leading export products Suichang, with the naming of the national industrial base, the local export-oriented architectural hardware industry to further improve in 2006, export $ 66,180,000, of which architectural hardware export $ 40,570,000, accounting for 61.3% in 2007, the county is $ 80,150,000, $ 49,690,000 of construction hardware, accounting for 62% in 2008, building hardware export $ 83,340,000, accounting for 70% of the county in 2009 Due to the financial crisis, exports have declined, but still amounted to 60 million dollars. Exports in 2010 showed renewed growth, an increase of 20%, reached 73 million U.S. dollars despite the U.S. and Europe in recent years due to the economic impact of the continued appreciation of the RMB and the export is facing great pressure, but the architectural hardware industry contrarian on a four-step across the four years, over a hundred million for the export Suichang made outstanding contributions to architectural hardware products have become the city s main export industrial products. Exports, while in the grasp, do a good job of introducing foreign capital, the introduction of the 2006 Taiwan-funded enterprises Yucheng Building Hardware Co., Ltd. officially opened the industrial park, currently covers an area has reached 50 acres, with more than 200 employees, development of high-end architectural hardware tools and bathroom accessories such as copper, greatly enriched the variety of architectural metal products industry, sales revenue of 3,000 million yuan each year to maintain.
Adhere to highlight the science and technology industrial base of
Metal products and architectural hardware industry as the traditional industries in the past the prevalence of technology behind the product and low-tech shortage, the county s nails, wire, low-tech manufacturing enterprises, the most prominent: First, raw material consumption; Second, process equipment backward, low labor productivity. Since the national industrial base named after, in order to pay more attention to science and technology of the industrial base, actively implement the grafting using high technology to transform traditional industries, through the implementation of scientific and technological progress to improve Suichang metal products and architectural hardware industry, the industrial level.
1, the active use of high-speed water tank wire drawing technology, changes the drawing production output is low, the status of consumption
Since 2006, has completed a Feng Li Suichang company 100,000 tons black wire production line, annual output of 300,000 tons per group drawing up the production line technological transformation and S Welding 100,000 tons Sila Si gas-welding technology building project, these new projects out past backward production technology, all with advanced drawing techniques, drawing a substantial increase in strength, speed than the original process equipment increased by 20% or more, the loss of oxide reduced by 2%, and annual cost savings than 20 million yuan.
2, the plating process greatly improved, significantly reduced the consumption of raw materials
Metal surface treatment process is an integral part of the hardware industry in recent years to promote effective local energy conservation, new technology and materials electroplating, acid mist in the production line in the implementation of the inhibitors, defoamers bath, new gas treatment plant and the use of three chromium instead of hexavalent chromium and other new technology, so that effectively increase the recovery of zinc, 3% annual reduction in zinc consumption, save 4 tons, cost 10 million.
3, and actively introduce high-grade zippers production equipment, improve the industrial level metal industry
In addition to nail wire, the Suichang for the province and supporting domestic enterprises zipper aluminum zipper head, there are many companies, is a strong complement to the hardware industry, a total of intention of casting, Guoliang zipper, and a number of casting Yueyue enterprises, 700 tons annual output of aluminum zipper, with annual sales of 15 million. In recent years, a number of local enterprises zipper supporting technological innovation, which means up to $ 1 million investment casting, the introduction of high-speed long die-casting machine from Taiwan, compared with similar devices made more than double the efficiency, yield a substantial increase in both value and quality , decreased costs, not only companies in the fierce market competition improve the industrial level, but also further expand the scale of enterprises, consolidating national industrial base for the contribution, but also for the massive economy s industry to play its due the role. While enterprises in the introduction, based on the digestion and absorption of work to do, but also developed its own technology more advanced automation zippers zipper assembly machine.
4, other metal products industry in the county also developed a number of new products, to promote a number of process
Architectural hardware industry in the grasp of technological progress, we put other metal products for the construction industry, metal industry, especially the upstream raw material industry, supporting technological innovation and technological innovation as a breakthrough, has completed a carbon dioxide gas protection welding wire of the research, development and industrialization, the completion of the zinc coating the galvanized wire to promote new technology, to promote the new silicon melt casting process, speed up the disappearance of film casting new technology research and development, promotion of large flange forging ring rolling manufacture new processes, etc. and so on. Metal products industry through our efforts to further improve product quality and technical level has improved.
Prominent sustainable industrial base
Energy conservation is the only way for the development of architectural hardware industry, Suichang focus in recent years within the industry to do the following:
A really good grasp of metal products and metal industries, energy saving building
Architectural hardware industry because of its decision process, the production process consumes a lot of energy, particularly electric power and heat treatment furnaces using coal. To further strengthen the energy consumption of industrial enterprises, to improve industry-wide awareness of energy conservation, to ensure that the “Eleventh Five” unit comprehensive energy consumption of the completion of binding targets, since 2006, the county of metal products and general promotion of the architectural hardware industry entry of new energy-saving measures in the industry to promote the enterprise-wide drawing to develop new energy-saving devices such as frequency conversion technology, the annual saving of more than 8 million KWH. Positive transformation of the new heat treatment process, Yuan Li Group, Li Feng, Shoen, Cosmos, Genpo and other companies have launched a gas furnace, a few years to a total transformation of furnace 8, boiler 5, by taking a variety of coal new measures, the county architectural hardware industry more than 30,000 tons coal per year.
2, within the enterprise to strengthen the industry s pollution reduction efforts in supervision to ensure the healthy and steady development of architectural hardware industry
Architectural hardware industry for the inevitable development of the potential for water, air pollution, Suichang comprehensive in the industry to carry out the work of pollution reduction, environmental pollution, industrial parks each year to carry out remediation, development of “building Suichang electroplating industry planning “, has completed the yuan up branch sewage treatment plant expansion galvanized transformation, Long Cheng metal ion water treatment company new technology, the two companies to take mist suppression plating production process, wastewater disposal and anti-foaming bath new technology and other measures. Waste in the extraction of zinc metal element, the sending unit of hazardous processing treatment and disposal. Promotion of water reuse technology, the current industry-wide water reuse has reached more than 70%, architectural hardware industry to strengthen the supervision of environmental protection, in addition to five companies of the industry s six-point implementation of emission-line monitoring . Through a series of energy saving measures, greatly improving the Suichang metal products and architectural hardware industry, sustainable development, economic development, ecological environment has been effectively protected. In the smelting dust control enterprise-wide promotion of new technology, complete a perfect circle, the Cosmos and Genpo improvements and installation of electric furnace dust removal facilities, dust removal rate of 90%.
3, adhere to the advance and retreat, do something to speed up the construction industry, metal chain link shut down and eliminate backward smelting work
Suichang architectural hardware industries, from steel melting to casting and rolling, drawing galvanized nail and then the expansion in recent years with the implementation of the national industrial policy, shutting down backward iron and steel industry to further accelerate the pace of work. To this end, and Zhejiang Provincial Government under the National Development and Reform Commission, signed letters of responsibility, Yuan Li Group in the second half of 2007, fully shut down the wire nail production process upstream of the base metal smelting furnace, eliminate backward steel production capacity of 500,000 tons, of Zhejiang Province The steel industry restructuring and has made outstanding contributions to the transformation and upgrading. At the same time as the local supply base metal wire nails all stand by the Quzhou yuan blast furnace steel-making access, the quality of the base material to further improve the stability of the downstream production of quality silk nail further stability. Shut down the smelting workshop on the implementation of “the cage for a bird” project, the year before smelting plant using more than 20,000 square meters plant, Yuan Li Group to implement the “zero land technical innovation,” the 40 new high-speed wire drawing machine, so that Li Yuan Group New drawing more than 100,000 tons of production capacity. As per established group of shutting down backward, and other metal products enterprises to implement a number of energy saving measures to Suichang in the “Eleventh Five-Year” period exceeded the binding targets of energy saving tasks, comprehensive yuan GDP energy consumption cumulative decline of 23% or more.
Government to further increase the intensity of the cultivation of industrial base
Since the industrial base has been named, the government further increased the Suichang architectural hardware industry base of China s efforts to foster, through policy guidance, financial support and development of the park and has taken many effective measures. Policy guidance in terms, has revised and improved the “Suichang building an advanced manufacturing base in a number of policy”, specifically the metal products, building hardware manufacturing industry as the county s leading industry to be nurtured, specifically related policies. At the same time give full play to the cultivation of financial capital in the leading role of industry, types of grants each year to encourage the industrial arrangements of funds more than 2000 million, of which more than 30% of the Yuan Li is mainly used for business incentives and other key benefits. To step up publicity efforts, but also for enterprises to participate in the implementation of the Shanghai International Hardware Show booth subsidies, each company for each 3,000 yuan, the Shanghai Fair as Hardware Show to be valued and encouraged, in the construction and expansion of the park area, giving priority to building hardware companies, according to incomplete statistics, a total of five years, the county building hardware for the new park new enterprises and projects more than 800 acres of industrial land, the total new supply of industrial land over 70%. Currently, the new two street blocks have a total of 700 acres of industrial land in which the new macro Steel Products Company has completed construction of 300 acres of the construction supply industry related degree preferred, high-level industry, economic good architectural hardware business, which the new macro High-frequency welded steel products company investment over 1.6 billion put into operation in June 2010, to provide raw materials for the high-quality metal strip production line project total investment of 300 million yuan in the first half production. Tien Mao is also being stepped up six blocks through a flat construction, focusing on the development of high-grade metal products industry. Yang Hao lake block of land resettlement work has been fully completed.
Suichang massive architectural hardware industry base economy of development work in China Hardware Association and the Province of care and guidance, in the province, city by letter (Trade) Commission s strong support in Suichang committee, county government the correct leadership of the county and the active cooperation of various departments, and enterprises through the whole county together, base development work has achieved remarkable results, and further reinforce the national industrial base, the future will rely firmly on Suichang each company within the industry, pioneering spirit, adhere to the scientific concept of development, and actively taking a new road to industrialization, and creating architectural hardware industry, metal products and a new situation and to work for the architectural hardware industry base in China to add luster, and gradually by the economy to a modern block efforts to upgrade industrial clusters.
Posted in Uncategorized
Tagged forging company, sand castings, stainless steel investment casting
Leave a comment
Forging and die casting difference
1 proposed to distinguish between die casting and die forging (liquid forging) pieces, at least two manufacturers of meaningful units:
First, some domestic intermediaries, including parts and the whole factory. They undertake external components, and then find some manufacturers in the country. Since both rough vary its production process, the current market price is not the same, which generally offer higher than the former. If not distinguish between the two rough, as in the quotation to undertake the business press reported the casting of low-cost, will be operational errors, affecting the efficiency or loss; the second is a professional manufacturer of castings and forgings. Since the latter is that casting can be produced by conventional casting process, then the business down. After the opening of the die-casting mold, die-casting process to produce the final largely because there are rough Shrinkage defects or surface flaws, rough failure, eventually resulting in unnecessary losses.
2 die forging, casting and forging liquid forging technology with the relationship
Continuous casting and forging process of nature, that is, with a single device, with a mold, the casting and forging for the completion of filling. Continuous casting and forging process is not a new technology, its principles have a long history. The most typical and most simple continuous casting and forging process, is the familiar liquid forging (Molten forging) process. The die forging process, the image that it is a special equipment with a higher degree of automation to produce a structure as complex as with ordinary liquid casting forging. Because of this, die forging and casting in general appearance, we were not easy to come out. And continuous casting and forging process produced similar rough quality, the “first cast after forging” process. After the forging process before we cast a very common: rough total of two sets of production tooling, a common metal used for casting hand, another set is used with friction or hydraulic punch machine to complete the forging. Die forging process is only in recent years, the rise in the international process, due to patent restrictions, the process in China is still rare. Electrical Technology Co., Ltd. Guangdong Zhaoqing Hong Silver is a pioneer in the introduction of this technology of foreign production. Has been produced, including sports forging piston, a small cylinder, extreme sports motorcycle frame (6061 material), the small wheel including a variety of rough.
3 Introduction to die forging process
Die forging process is a kind of special die forging machines to complete the process. The basic process is: first, low-or high-speed liquid metal casting filling into the mold cavity, the mold cavity surface are active, it is with the cooling process of liquid metal forging pressure, not only to eliminate the rough Shrinkage Defect, but also to the internal organization of rough forging state of broken grains. Rough overall mechanical properties has been significantly improved. In addition, the process produced a rough outer surface finish to achieve 7 (Ra1.6), such as cold extrusion process or machined surfaces, have a metallic luster. Therefore, we will die forging process known as “extreme forming process” than “no cutting, less margin forming process” goes a step further. Another advantage of die forging process is characterized, in addition to production of traditional casting material, it can be used wrought alloys, wrought alloy to produce a structure very complex parts. Grades of these alloys include: hard aluminum super-hard alloy, forged alloy, such as LY11, LY12, 6061,6063, LYC, LD, etc.). These materials tensile strength than ordinary cast alloy nearly doubled, for the aluminum alloy car wheels, frame and so hopes to produce a higher intensity of impact-resistant materials, components, have a more positive meaning.
4 How to distinguish between these two rough
From the appearance it is difficult to distinguish between these two processes produced by the blanks. If you see a part has been processed, it is difficult to distinguish the. Therefore, we can only reverse analysis to determine: First, die-casting in general is “structural parts”, and die forging is the “functional parts.” “Structural parts”, and “functional parts” is relative. The latter usually mean it takes to withstand impact, temperature, pressure, strength (force) and by the surface treatment (such as anodic oxidation), heat treatment (solid solution hardening) and so on. A typical product is the engine block, wheels, pistons, connecting rods, brake shoes, pneumatic or hydraulic valve (such as the common 5/3-way valve), etc. The former, such as door frames, instrument panels, engine housings. Second, to judge from the material composition. Because casting classes are generally cast alloy, for other brands of alloy, is often produced with die forging process. Third, from the rough outer surface of the processing requirements of their judgments on. Such as aluminum die casting, because it contains silicon, and due to die-casting process produced by the rough, outer surface with microscopic pores (called “Watermark”), this material would be anodized surface after the “black spots.” Therefore, the rough such as requiring anodizing is not such a rough production with ordinary casting process. Fourth, from the microstructure of judgments. Forging and die-casting on the microstructure is easy to distinguish. The former is a dendritic cast structure, which is evenly broken grains of forging state organization.
5 to eliminate some of the erroneous views
First, we can not say that after using the vacuum infiltration casting, die casting to solve existing Shrinkage defects, can not believe that you can use a vacuum die-casting process, production of continuous casting and forging process to produce functional parts to be . When the line has been progress in technology, the concept and ideology of the times we will have a scientific attitude. Second, ordinary vacuum die-casting and die casting, as there Shrinkage defects; vacuum die-casting, it s just an ordinary die than play a little in the secondary role of the exhaust process, the metal-liquid phase transition of the contraction produced by reduction holes and shrinkage (the interior is a vacuum, no gas), it is no way of. Third, the professionals most likely to commit errors, that is, that knows not only the rough production with ordinary casting process, but the choice is called “reverse punch indirect and partial extrusion” process to produce. They think this process and the effect of liquid to be the same forging process, which is completely wrong. “Reverse punch extrusion” process of nature, it is still a die-casting process! Only the “positive forging punch full projected area” of the kind, is the real liquid forging process.