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: heavy forgings
sand casting process
Web Design And Seo For www.china-webdesign.com
heavy forgings – China Manufacturer
Thank you for inquiry my heavy forgings, Tel:0086-574-27851019 E-MAIL:thomas@steel-casting-forging.com
http://www.steel-casting-forging.com/Heavy-forgings-parts/
The advantage of clay is wet castings/">sand casting: ① clay rich in resources, cheap. ② the use of wet sand over clay sand by
appropriate treatment, most can be recycled for reuse. ③ mold manufacturing cycle is short, high efficiency. ④ good mix sand
can be used for a long time. ⑤ sand Chung still suffer after a small amount of solid deformation without damage, and under the
core of the draft are very favorable. Disadvantages are: ① when the sand to thick clay slurry coating on the sand surface, knead
need to use the role of high-power blender device, it is impossible to get good quality sand. ② As the sand has a very high
after a good mix of strength, style is not easy when the flow of sand, it is difficult Chung fact, when the laborious hand-shape
and it takes a certain skill, modeling the machine when the device with the complexity and size. ③ the stiffness of the mold is
not high, casting dimensional accuracy is poor. ④ casting prone to red sand, gravel, holes and other defects.
The early 20th century foundry industry began to use rolling wheel sand mixer sand, clay, wet sand to make the quality greatly
improved. New High Power Mixer Mixer can work to achieve high efficiency and high quality. The main earthquake shock compaction
of solid-type molding machine appearance, but also significantly improve the mold of firmness and uniformity. With the casting
dimensional accuracy and surface quality requirements, but also appeared to mainly high-pressure compaction molding machine. With
high-pressure molding machine manufacturing clay wet sand, not only can improve the accuracy of casting size, surface quality
improvement, but also to simplify the action tight cast, cycles, so that shape, closing the whole process to achieve high-speed
and automation. The impact of the new gas pressure molding machine, the use of clay slurry thixotropy, imposed by the
instantaneous pressure of 0.5 MPa has been a very close cast. These advances are wet clay sand casting to adapt to the
requirements of modern industry an important condition. Thus this traditional craft methods have been used to produce large
amounts of high-quality castings.
Manufacture the clay dry sand wet sand with the sand wet with water slightly higher than the sand. Sand control well after the
cavity surface to be coated with fire-resistant paint, then placed in the drying oven, cooled and poured immediately after
closing. Drying clay sand take a long time to consume large amounts of fuel, and sand in the drying process is easy to produce
distortion, so casting accuracy is affected. Clay is generally used to make dry sand castings and large cast iron. Since the
widespread adoption of chemical hardening sand, the dry sand has become obsolete.
This chemical hardening sand sand sand used as chemical hardening sand. The binders are generally in the hardener can occur under
the effect of molecular aggregation and then become three-dimensional structure of the material, commonly used in a variety of
synthetic resin and sodium silicate. There are basically three kinds of chemical hardening method.
① self-hardening: binder and hardener are in the sand are added. Or core made of sand, the binder hardening agent in the
reaction under the effect of lead or core self-hardening sand. Method is mainly used for self-hardening modeling, but also for
the manufacture or production of a larger core volume small core.
② aerosol sclerosis: sand and binder are added plus other auxiliary materials, the first without hardener. Shape or core making,
the gaseous blowing agent or blowing in hardened carrier gas atomization of liquid hardening agent, or its dispersion in the sand
core, resulting in hardening of sand. Aerosol hardening method is mainly used for the core system, sometimes used in the
manufacture of small sand.
③ heating sclerosis: sand and binder are added at room temperature the latent hardener does not work. Made of sand or core, it
will heat it, then latent hardening agent and some elements of the binder reacts to make an effective hardener binder hardening,
so that the sand or core hardened. In addition to heat-curing method for the manufacture of small shell sand, the main core for
the system.
Chemical hardening sand casting process is characterized by: ① the intensity of chemical hardening sand is much higher than the
clay, sand, and sand made after hardening to a very high intensity, after stripping, not repairing. Thus, the mold can more
accurately reflect the appearance of the size and contour shape, in a later process is also not easy to deformation. Obtained a
high dimensional accuracy of castings. ② As the hardening agent used and the viscosity of the binder is not high, it is easy to
mix with sand, sand equipment, compact structure, low power and high productivity, simplify some of the sand processing. ③ good
sand mixed well before the hardening of liquidity, when the sand is very easy to shape Chung real, and therefore does not require
large and complex molding machine. ④ chemical hardening sand molding, you can choose according to production requirements
appearance of materials such as wood, plastic and metal. ⑤ chemical hardening sand binder sand content is much lower than the
clay, of which there is not powder materials, such as the use of the same size of the original sand, sand sand between the gap is
much larger than clay. In order to avoid casting the metal into sand between the sand or core surface should be coated with good
quality paint. ⑥ water glass as binder chemical hardening sand, low cost, the use of the work environment odorless. But this is
not easy to mold sand casting metal after collapsing; used sand can not be directly recycled, renewable subject to processing,
and silicate sand regeneration and more difficult. ⑦ binder resin for the high cost of chemical hardening sand, but after
casting and sand casting easy separation, reducing the workload of casting cleaning, and used most of the sand recycling
renewable.
Core in order to ensure the quality of casting, sand casting cores used in the core is generally dry. According to core binder
used in different core sand core is divided into clay, oil sand core and resin sand core are several.
Clay sand clay sand core manufacturing simple core.
Oil-sand core with drying oil or semi-dry oil for the core sand binder produced by the core, used widely. Oil of low viscosity,
good core sand mix, good liquidity, when the core system very easy to tight. However, just made of core strength is very low,
generally to be used for profiling the core board undertake care, and then 200 ~ 300 ℃ baking within the oven for several hours,
the oil oxidation by air to harden. The disadvantage of this is making the core: core in stripping, handling and curing process
easily deformed, resulting in lower dimensional accuracy of castings; baking for a long time, energy and more.
Resin sand core made of resin sand core. Core in the core box and then remove it hardened, to ensure the core of the correct
shape and size. According to different methods of hardening resin sand core manufacturing system is generally divided into the
hot box core and cold-box core-making in two ways. ① hot box core legal system: the late 1950s. Usually furan resin sand core
binder, which also joined the latent curing agent (such as ammonium chloride). The core system, the so-box maintained at 200 ~
300 ℃, core sand core box after the injection, ammonium chloride at higher temperatures and formaldehyde resin in the reaction
of acid, so that the core quickly hardened. The establishment of stripping strength about 10 to 100 seconds. The legal system
with hot-box core, core of high dimensional accuracy, but the process is complicated and expensive devices, more energy, emit a
pungent gas, the labor conditions are poor. ② cold-box core legal system: the late 1960s. With a urethane resin as a core sand
binder. This method the system core, the core box is not heated to steam for a few seconds which can be blown into the amine core
hardening. This approach to energy, environment, production efficiency are better than hot-box method. The mid-1970s appeared
furan resin hardened sulfur dioxide blowing cold-box method. The hardening mechanism is completely different from urethane cold
box method, but the process-related features, such as rapid hardening, high core strength, the urethane cold box with the same
method.
points IF furnace steelmaking
Web Design And Seo For www.china-webdesign.com
casting factory – China Manufacturer
Thank you for inquiry my casting factory, Tel:0086-574-27851019 E-MAIL:thomas@steel-casting-forging.com
http://www.steel-casting-forging.com/key-casting-factory-35/
First, the steel-making task
Melting part of the main raw material is scrap and pig iron. Incoming scrap purchased more than rust, sediment and other folders
with dirt, steel parathion content is higher. The task is to steel-making raw material for smelting the above conditions and
inclusion into the gas content is low, qualified components, the temperature to meet the requirements of high-quality liquid
steel. Specifically, the steel of the basic tasks are:
(1) melting the solid charge (pig iron, scrap, etc.);
(2) to make steel in the silicon, manganese, carbon and other elements to achieve size composition;
(3) removal of harmful elements sulfur and phosphorus content of their limited down to the following provisions;
(4) removal of molten steel in the gas and non-metallic inclusions, so that pure molten steel;
(5) by adding alloying elements (melting alloy steel), to meet the requirements;
(6) the superheat to a certain temperature to ensure the casting needs;
(7) In order to increase production and reduce costs, must be fast steel;
(8) pouring into a good casting.
Second, the steel-making method
There are many ways steel, there are Induction furnace steel-making, open-hearth steelmaking, electric arc furnace steel-making
and so on.
In the steel plant on the universal application of the electric arc furnace and induction furnace. Loose their raw material
requirements, refining the molten steel of higher quality, and steel for steel production cycle characteristics, open furnace
shutdown are more convenient, easy and shape, the progress of joint boxes and other process coordinated, easy organization of
production. In addition, the electric furnace steel-making equipment is relatively simple, low investment, infrastructure, speed
and quick recovery of funds.
In recent years, the gradual development of induction furnace steelmaking. Induction furnace steel-making process is relatively
simple, steel quality can be guaranteed. Many of the induction furnace steel plant with a small cast to cast, especially the
Casting plant, widely used in induction furnaces to melt steel.
In the heavy machinery plant, the use of open-hearth steel-making still, open-hearth furnace capacity is generally larger than
with the open-hearth steel-making to a large amounts of molten steel refining, pouring large and complex for heavy castings.
However, the open-hearth steel long life cycle of a furnace steel refining the time it normally takes more than six hours. Open-
hearth large and complex structure, the output is low, the quality of steel than electric, so its development has been greatly
restricted. In some countries, no longer had to build a new open-hearth.
In recent decades, widely used in the steel industry to pure oxygen top-blown converter steel, this steel-making method is
faster, high productivity, quality assurance steel, this furnace is more suitable for ingot production.
With the production and scientific and technological development, the DC arc furnace, vacuum induction furnace and refining
equipment, emerging new steelmaking method, melting out of the steel quality has greatly improved casting quality greatly
improved.
two aluminum casting brief knowledge
An impregnation method and application
Impregnation process is based on the nature of the casting defects, distribution, casting working conditions, structure size and type of infiltration agents determined the specific circumstances. Impregnation treatment of local infiltration and overall infiltration into two categories.
Local infiltration methods are brushing method, injection method, dip coating method and the local pressure infiltration method, which applies to parts of the casting known leaks. This process is simple, easy to operate, impregnating agents consume less, and more for large-scale production of single-piece casting or castings. Overall pressure impregnation impregnation method, pressure impregnation, vacuum impregnation and vacuum pressure impregnation, used for mass production of small castings. Casting defects in cast aluminum, may not show-through, or surface defects or hidden defects affect the casting strength, non-destructive testing methods can only be found, could not be repaired, only the first two defects impregnation process effective.
2 aluminum casting impregnation and development of processing technology
Impregnation of foreign technology is currently expanding the advanced industrial countries are in favor of full-pressure casting impregnation process, impregnation technology has been the automotive industry and recognized by other major industrial sectors, such as several large Japanese car company in the engine production the casting infiltration as an indispensable process. In recent years, impregnation processing equipment and materials development, processing technology as the impregnation of aluminum castings to save the automotive technology leakage defects in a satisfactory way. People know it, not simply as a method of recycling waste, but casting it as a follow-up process in the production process recognized. In fact, due to the continuous development of products, product mix more and more complex, increasingly high requirements casting, casting defects increase the chances of any advanced casting technology is difficult to ensure 100% pass rate casting. Therefore, the impregnation process has become an important means to save one of casting defects. In the past because the domestic production of small aluminum castings, automotive aluminum castings to expand the application, the promotion and application of this technology has some practical significance, in the production of a wide range of applications. Practice has proved that impregnation technology is to improve the passing rate of finished castings to ensure product performance and an effective method.
Posted in Uncategorized
Tagged cast steel valves, heavy forgings, steel casting foundry
Comments Off
The cutting characteristics of cast iron
In general, the higher the hardness and strength of cast iron, metal cutting, the lower, from the blade and tool life can be expected lower. The production of cast iron for metal cutting most types of metal cutting its generally very good. And structure of metal cutting, hard machining pearlitic cast iron its greater difficulty. Flake graphite cast iron and malleable cast iron has excellent cutting properties, but ductile iron is poor.
Encountered when machining cast iron main types of wear: abrasion, adhesion and diffusion wear. Mainly by the carbide abrasive, sand casting parameters and hard skin debris generated. BUE bond with wear at low cutting temperature and cutting speed conditions occur. Ferritic cast iron some of the most easily welded to the blade, but this can increase the cutting speed and temperature to overcome.
On the other hand, diffusion wear and temperature, generated at high cutting speed, especially when using high-strength cast iron grades. These grades have a high resistance to deformation capacity, resulting in a high temperature. This cast iron and tool wear and the role of the between, which makes some of the iron required ceramic or CBN (CBN) cutting tools in high speed machining, in order to get a good tool life and surface quality.
Generally required for the processing of a typical cast iron tool attributes are: high fever hardness and chemical stability, but also with the process, the workpiece and cutting conditions; requires cutting edge toughness, thermal fatigue, wear and edge strength. Satisfaction depends on cutting cast iron wear how to develop cutting edge: rapid thermal blunt means leaving the cutting edge cracks and gaps in premature fracture, broken parts, surface quality is poor, excessive waviness, etc. Normal flank wear, balance and sharp cutting edge is generally required to do.
Technical guidance: how to distinguish between the valve casting and forging valve?
Casting is the casting of the valve into the valve, the valve pressure rating cast generally relatively low (eg, PN16, PN25, PN40, but there are also high, and can go to 1500Lb,,
2500Lb), DN50 diameter are more than most. Forging valve is forged out of, are generally used in high-level pipeline, diameter is relatively small, generally in the DN50 or less.
First, the casting
1, cast: that is, metal melting into liquid and meet certain requirements poured into the mold, the solidified by cooling, clearing has been pre-processed shape, size and
performance of the castings (parts or rough) of the process. The basis of modern technology machinery manufacturing industry.
2, low-cost production of rough casting for complex shape, especially the parts with complex cavity, more show its economy; while its wide adaptability, and has good
mechanical properties.
lost wax casting china
3, but casting the required materials (such as metal, wood, fuel, materials, shape, etc.) and equipment (such as metallurgical furnace, mixer, molding machine, making the core
machine, sand off the machine, shot blasting machine, cast iron plate, etc. ) more, and will generate dust, harmful gases and noise pollution of the environment.
4, casting an early grasp of human thermal processing of metal, about 6,000 years of history. 3200 BC, Mesopotamia appear copper frog casting. 13 BC to 10th century BC
between, China has entered the heyday of bronze casting, technology has reached a very high level, such as the Shang Dynasty heavy 875 kg of Si Mu Wu Ding Fang, Warring
States and Han plate statue of Marquis Yi of Zeng the light microscope (SEM) are representative of the ancient casting products. Early pottery influenced by the casting, casting
mostly for agricultural production, religion, and life, tools or appliances, art flatted. In 513 BC, the Chinese cast out of the world s oldest written records found in cast iron – Jin
ZD (about 270 kg weight). Before and after the 8th century AD, Europe began producing cast iron. 18th century industrial revolution, casting into a new era for large industrial
services. The 20th century, the development of fast casting, has developed a ductile iron, malleable iron, low carbon stainless steel and aluminum copper, aluminum silicon,
aluminum-magnesium alloy, titanium-based, nickel-based alloy casting metal, and the invention of the gray cast iron inoculation of new technology. 50 years after the emergence
of high-pressure molding wet sand, chemical hardening sand molding and core making, molding and other special vacuum casting, shot blasting and other new technology.
5, casting many different types of modeling methods used by divided into: ① ordinary sand casting, including wet sand, dry sand and chemical hardening Sand three categories.
② special casting, press molding materials can be divided into natural mineral sand and gravel to the main form of special casting material (such as investment casting, clay
casting, casting workshop shell casting, vacuum casting, reality casting, ceramic casting etc.) and metal as the main special casting mold material (such as metal casting, pressure
casting, continuous casting, low pressure die casting, centrifugal casting, etc.) categories.
6, the casting process typically includes: ① mold (the liquid metal into solid casting containers) prepared by casting the materials used can be divided into sand, metal,
ceramic, clay type, graphite, etc., can be divided according to frequency of use one-time, semi-permanent and persistent, the merits of the mold is ready the main factors affecting
the quality of castings; ② melting and casting metal casting, metal casting (cast alloy) are cast iron, cast steel and cast non-ferrous alloys; ③ casting processing and testing,
including removal of the casting process and the casting surface core foreign body, removal of water riser, relief grinding burrs and other projections as well as Phi seam heat
treatment, plastic surgery, anti-rust treatment and roughing valve door such imports.
Second, the forging
1, Forging: Forging Machinery is used to put pressure on the metal blank to produce plastic deformation in order to obtain a certain mechanical properties, a certain shape and
size of the forging processing methods.
Asia s first environmentally friendly water show May passion pump hair
In 2011, ice-breaking success of the financial crisis, the market orderly. China s pump industry more vigorously by the state investment in infrastructure and other favorable
factors and vibrant. Pump is energy-hungry. According to a European Union study found that motor-driven pump system energy consumption accounted for about 20%. The
corresponding annual electricity consumption of up to nearly 160TWh! For many years the pumps and pump systems for energy efficiency issues in Germany and Europe are the
focus of discussions pump. However, according to a German Energy Agency concluded that the system is optimized through the pump power to achieve the New Year 10 billion
kWh. For this reason, energy saving pump as one of the key points, how to update the design to be of concern.
IFATCHINA + EPTEE + CWS will be held May 5-7 at the Shanghai New International Expo Center, as part of concurrent events, Pump Summit 2011 will be held at 9:30 on
May 5 to 5:00 pm in the E6M37 began. There will be units from industry experts and users more than 200 participants. The forum of “energy efficient pumps & pump harsh
working conditions” as the theme, inviting well-known pump unit manufacturers and users to speak, to jointly promote technological progress and exchange pump.
Meanwhile, the well-known pump companies will gather in the show, gorgeous appearance, singing the theme of energy saving, interpretation of water and wastewater
treatment solutions. This select only part of the pump business you preview.
Grundfos Pumps (Shanghai) Co., Ltd.
Grundfos is the world s leading manufacturer of pump products, the production capacity of 10 million units per year. Circulation pump (UP), submersible pumps (SP) and
centrifugal pumps (CR) for the three main types of pump. Today, Grundfos is the world s largest circulation pump manufacturing facility, covering such pumps about 50 percent of
the world market.
Aye ladder ladder (China)
ITT is a high-tech engineering and manufacturing company, operations involving the three major markets: water and fluids management, global defense and security, and motion
and flow control. Companies adhering to the tradition of innovation, in creating more livable environments, provide protection and safety and connect the world to provide
extraordinary solutions.
Heino on net sales of environmental protection equipment Co., Ltd.
SAER pumps, covering the field of municipal water service and sewage, industrial, agricultural, commercial, etc., deep well submersible pump / motor series is complete.
FAGGIOLATI sewage pumps and mixers products, unique design and reliable for the heavy municipal and industrial wastewater applications. Heino on net sales of
environmental protection equipment Co., Ltd. engaged in domestic service agents and products.
SAERELETTROPOMPES.p.A
SAER Purcell pump was founded in 1951, specialized in manufacturing for municipal, agricultural, fire, air conditioning, heating, marine and mining industries pump. Carbon
steel, cast iron, bronze, stainless steel materials. Product :4-14 “dive deep well pump, end suction pumps, vertical / horizontal multi-stage pumps, double suction pump.
FAGGIOLATIPOMPSS.P.A
Faggiolati professional design and production of submersible pumps, mixers and aeration equipment, cast iron, bronze, stainless steel and other materials. Power range 0,5-
300KW, 18KW the following for explosion-proof. Products have been successfully used for municipal, power plants, desalination, mining, automotive and other industries.
Kubota Corporation
Kubota is a 120-year-old company with nearly a century, has accumulated a wealth of water-related technology and experience, developed a liquid film, septic tanks, water
pumps, dewatering machines, bulk gas installations, mixers and other products . We will play the advantages of the overall project engineering, according to the needs of
customers, water and environmental protection in China to make a significant contribution.
Ville (China) Pump Systems
Vela is headquartered in Dortmund, Germany, is a leading global manufacturer of pumps and pump systems, one of Ville products for heating, refrigeration and air conditioning
technology and water and sewage treatment and other fields.
Ville (China) Pump Systems Ltd. was established in 2000. After 10 years of development, the current Ville (China) has been the first one to twelve branch offices in the
development, sales network covers the country s key provinces and regions, the number of employees from 10 to 300 people and more than . So far, Ville (China) products and
services have been deeply rooted in the HVAC, refrigeration, sewage treatment, water supply equipment and other applications.
Kaicong Springs Pump (Group) Co., Ltd.
Kaicong Springs Pump (Group) Co., Ltd. is the design, production, sales pump, water pump control equipment, devices and large-scale comprehensive Pumps, pump industry
in China s leading enterprises. Group registered capital of 1.2 billion and total assets of 20 billion yuan, in Shanghai, Zhejiang, Anhui, Hebei, Liaoning and other provinces with
five companies, three industrial parks. More than 6,000 employees. Throughout the country has 30 sales branches and 410 offices. 2008 Group sales of 20 billion yuan, ten
consecutive years ranked first pump industry sales.
Kurita Machinery Manufacturing Co., Ltd.
Since 1930, business has been as a professional filter manufacturer, we lead the world s first, in the development of automation success. , Not only in Japan but also in many
countries continued to provide related products and technologies. The company is faced with the 21st century, is studying hard day and night, and strive for pressure filtration can
respond to all requests to return the customer s expectations and trust.
Zenit Pumps (Suzhou) Co., Ltd.
Zenit in the late 1950s created industrial city in Italy. In Italy and established a production base in China, responsible for local sales. Luxembourg-based European sales
company and Singapore s Asia Pacific division is responsible for the rest of the sales. Our products cover a submersible sewage pump, sewage lifting units, water treatment
products range, can achieve the perfect space under construction in the Mainland and enhance the collection of sewage, and post-processing functions.
Kay silk Rui Pump Manufacturing (Shanghai) Co., Ltd.
Overall global water cycle solutions.
Draw water from deep water to the pipe network; from civil sewage or industrial wastewater treatment and reuse collected, CAPRARI with quality products, excellent
solutions and excellent service come to the fore in the international market. CAPRARI the overall water cycle process in the professional field of technology and 60 years of
unique experience.
Than on the Hai Kaishi Pump Co., Ltd.
KSB Group is the world s leading pump, valve and systems manufacturers. Company has been established in Germany in 1871, has 36 factories on five continents with 163
sales companies and service organizations. 10 years in China, KSB is now has five branches in China, more than 1,200 employees and more than 30 service outlets and agencies.
Now in China, KSB has become the most widely used range of products, the highest level of technology pumps, valves and system manufacturers.
Hamilton Sundstrand Industrial (Shanghai) Co., Ltd.
Hamilton Sundstrand Industrial (Shanghai) Co., Ltd. is the United States in China, Hamilton Sundstrand, a wholly owned subsidiary, Hamilton Sundstrand and Carrier air
conditioners, Otis Elevator, Pratt & Whitney engines belong to the world s top 500 United Technologies Corporation. Company metering pumps, magnetic pumps, booster pumps,
high pressure valves, reciprocating pumps, mixers and water meters and other products to Milton Roy and win up because of the brand and service in China and the Asia Pacific
market.
Speck-Triplex-PumpenGmbH & Co.KG
Speck Si Beike has been Germany s century long history, the production of high voltage crank high pressure piston pump for its excellent performance, high durability
durability, high stability and low noise and a relatively small installation size and other characteristics of well-known world. Si Beike piston pump is widely used in high
pressure cleaning, rust removing paint, industrial and phosphorus removal, sand castings, pressure testing, spray humidification, desalination and other fields. In the oil, mining,
cement, construction chemicals, pharmaceuticals, water conservancy, electric power, metallurgy, food and other industries have played a unique effect.
Shanghai Mechanical Engineering Co., Ltd. is willing to stand
Shanghai Mechanical Engineering Co., Ltd. is willing to stand as a German high-pressure piston pump Speck designated sales partner in China for many years with its unique
expertise and advanced maintenance, testing equipment to ensure a high-pressure piston pump Speck numerous after-sales service and user spare parts, and the actual working
conditions in accordance with the customer to provide complete system equipment from R & D, design, manufacturing a complete solution to the finished product.
Eger chemical pump (Dalian) Co., Ltd.
Italy Eger Group, the world s leading manufacturer of plastic chemical pumps, corrosion resistant pumps with advanced manufacturing technology and patents. Eger chemical
pump (Dalian) Co., Ltd., is Eger Group-owned enterprise established in China, Group is responsible for the production of products in the Asia-Pacific region, sales and service.
Our main product lines include: Eger (Argal) magnetic pump, fluid pump; Eger (Argal) pneumatic diaphragm pump; Road Heights (Doseuro) metering pump; Roth (Rotho) hose
pump; Nova ( Novarotors) screw.
Mono Pumps Ltd.
Mono is a worldwide design and manufacturing of single screw pump, cutting machine, crushing grill, pump equipment and other products of the professional company, a
leader in the industry. For customers in the various needs of different industries, the company can provide professional and comprehensive range of products and excellent
solutions, products widely used in water / source water treatment, oil and gas, food and brewing, paper / pulp, mining and mining refining, agriculture and other industries.
Company s customer needs a primary goal, seventy years of industry experience, ensures that we can fully understand and meet customer needs, to bring real benefits to customers.
Prominent Fluid Control (China) Co., Ltd.
Prominent Fluid Control (China) Co., Ltd. is a multinational group – Germany, Prominent Fluid Control Co., Ltd. to invest in China to establish a wholly-owned subsidiary, in
1994 in Dalian Economic and Technological Development Zone.
Main business activities are concentrated in: Industrial process measurement precision of various chemicals, and real-time dosing control (chemical fluid handling); variety of
water treatment equipment R & D, production and implementation of the project (water solution).
Verder Industrial Group China Headquarters
VERDER Verder Industrial Group is Europe s leading manufacturer of industrial pumps, but also the set of technical advice, product sales, and support services group based in
one of the suppliers on a global scale within the UK, Germany and the United States have a production base. In 1959, Mr.Verder Mr. Holland and founded the first company
Verder this brand for 50 years, from a family business evolved into an international group of well-known and well-known within the field of industrial pump brands in the world
such as the U.S. , Germany, Britain, Japan, China, Belgium, the Netherlands, South Africa, France and other major countries have established dozens of branches and directly
under the sales and service network, with annual sales of EUR billions of dollars, and continues to expand into.
IDEX Trading (Shanghai) Co., Ltd.
Perth was founded in 1940, Fida, is the world leader in metering pump.
ADS Environmental Services is the U.S. city water distribution system leading supplier of test, and managed hundreds of sewer system evaluation survey project.
Accusonic design and manufacture of large diameter ultrasonic flow measurement system, with its complex operating environment in the high precision and reliability.
iPEK crawling robot for the world s leading suppliers.
WarrenRupp is recognized worldwide as a pioneer in pneumatic double diaphragm pump,
Pulsafeeder, ADS, iPEK and WarrenRupp are the United States IDEX group of companies. IDEX (IDEX) Group is a positive displacement pump and flow meter, pumping
equipment and systems, color and other industrial manufacturing equipment, a global leader.
NETZSCH (Lanzhou) Pumps Co., Ltd.
NETZSCH (Lanzhou) Pumps Co., Ltd. in China, Germany NETZSCH Group s first production-owned enterprises. The NETZSCH Group head office is located in Bavaria,
Germany, 130 years of history. NETZSCH Group production 奈莫 NEMO ? pump is a positive displacement pump, with a steady pulse transmission characteristics of a small,
suitable for conveying corrosive, abrasive, high viscosity, including fiber, gas and solid particles of the medium. Widely used in environmental protection, wastewater treatment,
food, beverage, wine, electricity, petroleum, chemical industry, papermaking, metallurgy, construction, coal-water slurry, mining, pharmaceutical, emulsion explosives and many
other industries.
West Parker (Shanghai) Pump Co., Ltd.
West Parker (Shanghai) Pump Co., Ltd. headquartered in Germany, is specialized in single-screw pump, Macerator and control system development, manufacturing and global
sales of the company. In the sludge disposal, drying, incineration and other fields have a wide range of applications, innovative SCT technology can save up to 80% while
reducing maintenance time the user cost of maintenance, cost-effective to bring a new generation of the stator technology and products.
Robin Maya s Fluid Division
Mo by Solutia Inc. is the world s single-screw design and development leader, headquartered in Dayton, Ohio, USA. Mo enoxaparin is Robbins & Myers group s core
members, Robbins & Myers Group is an internationally recognized design, manufacture and sales of high-quality high-value fluid handling product leader with 130 years of
manufacturing history, in 1936 began operating MOYNO ? single screw . MOYNO ? single screw pump is positive displacement pump, transmission smooth pulse-free, low
shear, low cavitation margin, no air lock. Products are widely used in processing shear sensitive, abrasive, corrosive and viscous fluids. Mo enoxaparin are a few recipes with
the stator rubber stator own production company and one of our excellent quality of the stator to reduce long-term customer operation and maintenance costs. Mo enoxaparin in
2005 to establish production facilities in China, to China and Asia to provide more quality and efficient service. Has expertise in fluid handling applications, and extensive
project experience, MO enoxaparin always is the right solution.
stainless steel investment casting
Shanghai Gang Pu Industrial Group Co., Ltd.
Large domestic water pump development and manufacturing group of companies, mergers and acquisitions Shanghai Vacuum Pump Factory, Shanghai, People s Electric
Factory. Full range of pump configuration Y3, YX3 energy efficient motors. Promote and implement green, low carbon energy pioneer.
Shanghai Liancheng (Group) Co., Ltd.
Shanghai Liancheng (Group) Co., Ltd. is a leading research-manufacture pumps, valves and other fluid transfer equipment, electrical equipment, control systems and
environmental management of large diversified conglomerates.
After more than ten years of development, the Group now has four industrial parks with a total area of ??21 square meters, existing staff of more than 3,500 people; have
Liancheng Pump, Liancheng Electric, and even into the logistics, and even into the valve, Even as environmental engineering equipment, and even into the general equipment
installation works six wholly-owned subsidiary; over a thousand varieties of its products, covering pumps, variable frequency control series, soft start cabinet, valve, motor,
water supply equipment, complete sets of series , was awarded the certificate of product quality inspection, CCC and CE certification; widely used in municipal, water,
construction, fire safety, electrical, environmental, petroleum, chemical, mining, medicine and other fields. Even as groups in the provinces, municipalities with more than 200
branches, has a more than 2,000 professional sales and service teams, sales revenue among the best in the industry for many years.
Dabor pump (Qingdao) Co., Ltd.
DABPUMPSS.pA founded in 1975 in Italy, Veneto, operating electric pumps for over 35 years old, is already a recognized leader in the industry at home and abroad
companies. DAB pumps in Italy has five production plants in Europe and other regions have countless of business, so firmly grasp the Italian tradition of corporate values ??also
have multi-country perspective. DAB pump more than 2 million units of annual production of electric pumps to enable them to supply a variety of products to meet the special
requirements and to ensure the highest reliability. DAB provides a variety of pumps to meet any need. Our pumps are the most advanced materials, improved its internal and
external compression capabilities, and to ensure high performance, high quality and lasting durability, it can reduce the impact on the environment. DAB pumps are designed to
provide a variety of uses flexible, easy-to-solution continuous research and technological innovation results.
Deep Blue Pumps Group Co., Ltd. Nanjing
Deep Blue Group s products include centrifugal, axial, mixed flow submersible pumps full range of products, as well as water supply and drainage, heating, air conditioning,
fire control pumps, deep well pump and so on. Water treatment equipment covering Trash, transportation, Sand, mud, aeration, mixing, crushing more than seven categories such
as family, with high-voltage electrical control equipment has been complete, low voltage, PLC automatic control system design, manufacturing capacity .
Fujian Motor Group Co., Ltd. Dragon
Dragon Pump Motor Group Yaou Shi (Fujian) Co., Ltd. was founded in 1993, the company has 60,000 square meters of modern industrial park, with ISO9001 management
system, main products include FCP (pool pump), BTP (bath pumps), HMP (multi-polar pumps) series pumps, the product through the European CE, GS certification, RoHS
certification and 3C certification.
Zhejiang Leo Co., Ltd.
Zhejiang Leo Co., Ltd. is mainly engaged in micro-mini water pump, garden machinery R & D, design, manufacture, sale, is China s largest micro-mini pump manufacturers and
exporters. Exported to Europe, North America, South America, Southeast Asia, Middle East and other world in nearly 80 countries and regions.
Mechanical Engineering Co., Ltd. on Haichuan source
GSD was founded in 1975, Sichuan from Taiwan. Committed to a complete professional supplier of environmentally friendly products, currently has a land-based pumps,
Submersible pumps, fans, support aeration, mixing plug-flow, solid-liquid separation, bubble drugs, crew, transport equipment 12 fully equipped product line. Relying on the
perfect network layout, high-quality after-sales service by the user community is certainly deep.
See Electrical Equipment Co., Ltd. Xiamen River
See the river pump, more than 300 models, the product uses such as: household water, environmental protection and waste-water treatment to generate clean water, construction
sites, water extraction, temporary use of the general drainage, water supply and irrigation water for fish farming, landscape fountains beautify the city s appearance, set the low-
lying areas flood water pumping stations, we have reach every corner of the pump.
Shanghai Dragon Enterprise Group
Shanghai Dragon Enterprise Group was founded in 1993 to pump, washing machine, air compressor, the motor main body until the four pillar industries, science, industry and
trade as one multi-purpose science and technology enterprises.
Product Description: Stainless steel multi-stage centrifugal pump mainly on water supply, industrial pressurized, fluid transport, treatment and other fields. With energy saving,
low noise, easy to install and so on.
Pump Industry Co., Ltd. Zhejiang New Territories
Pump Industry Co., Ltd. Zhejiang New Territories is a professional production and operation of various types of pumps and air compressor joint-stock enterprise. Founded in
1984, currently employs more than 1,000 people, covers an area of ??over 190,000 square meters, with advanced equipment. Annual production of 1.8 million sets of pumps,
pump models include: vortex pump, centrifugal pump, jet pump, well pumps, submersible pumps, sewage pumps and multistage pumps. In 2006 the government awarded “China
Famous Brand” title. Provide customers with the best solution, has been successful in over 70 countries have established a global marketing network.
Duke Pump Manufacturing Co., Ltd. Shanghai China and South Korea
Korean Duke pump to produce “safe, energy saving, environmental protection, convenient, user-friendly” energy-efficient frequency conversion water supply equipment and
pumps, emerged as the leader in frequency control pumps, energy-saving products as Shanghai is willing to contribute to energy saving.
Love ryokpo Pump Co., Ltd. Zhejiang
Zhejiang Love ryokpo Pump Co., Ltd. specializes in metering pump, metering pump digital controller, complete dosing devices, soft drinks sampling devices such as product
development, production and sales.
Ashley China Ltd. Pa
ESPA was founded in 1962 dedicated to domestic, agricultural and industrial water pumps and other water treatment systems
Design, production and sales. More than 49 years of innovation and service to create a dynamic company, for each common or specific products. Product development, began a
thorough detailed research, development and innovation, thereby stimulating Ashley hegemony among the international water pump production.
Where there is water, where there is Ashley Pa.
Southern Pump Co., Ltd.
Hangzhou Nanfang Special Pump Industry Co., Ltd. is a research, production and sales of stainless steel multi-stage pump professional manufacturer, the product suitable for
industrial and mining enterprises, urban water supply, agricultural irrigation, petrochemical, high-rise building fire water supply, industrial water treatment and pure water, the
pharmaceutical industry, boilers, air conditioning heating pumps and other industries.
Potter game high flow control Hebei Co., Ltd.
Potter game high flow control Hebei Co., Ltd. (SEKO China) is SEKO company-owned enterprises established in China, in Beijing, Shanghai, Guangzhou, Xi an, Chengdu has
offices sell their products and services. The main products are: electromagnetic, electrical pumps, water quality control instruments, industrial process pumps and skid mounted
systems.
Shanghai Ying Ko Industrial Co., Ltd.
Canadian Skye is renowned fluid power transmission equipment manufacturing experts, the production of pneumatic diaphragm pumps have no spark, idling, start self-priming
characteristics; different production materials, to meet the needs of different users. The products sold are in the industry has a high reputation, which have been widely used metal
pump shipbuilding, and other international certification by GL.
Posted in Uncategorized
Tagged heavy forgings, sand castings, stainless steel investment casting
Leave a comment
Hardware Knowledge: those things metal vacuum valve
Metal vacuum valve in the vacuum system is used to change the airflow direction, adjust the gas flow rate, or turn off the vacuum piping system components known as the vacuum
valve. The following brief description of the vacuum valve:
High vacuum flapper valve drive unit can be placed on the side
Usually the higher the height of flapper valve, a total height of the equipment space shortcomings. To overcome this drawback we will drive design side, this greatly reduces
the height of the valve size, reducing the manufacturing cost of the equipment space.
High vacuum valve design high Platform
General pneumatic, electric high vacuum valve stent used / connected sets of installation, our company direct installation of high scientific platform designed to make it simple
to install the actuator.
Small-bore high vacuum baffle valve body castings are precision
Precision casting and high-tech equipment, making the stainless steel castings full access to dense structure. No “holes, loose gravel” and other casting defects. Overall clean
and beautiful. Valve leakage rates were better than 10-10Pa.M3 / S. Fully applicable to ultra-high vacuum working conditions.
GYC-JQ series of high-vacuum pressure-type pneumatic solenoid valve to prevent return oil greatly enhanced performance
After high-vacuum pressure-type pneumatic valve to improve the structure, making the product more reliable, more suitable for mechanical vacuum conditions required. There
are three key nature has been able to raise: (1) time off valve to
certain vacuum value after the valve to open, if there is no pressure to return when the normally open state; (3) The products of the vacuum leak rate indicator improved from the
original values ??to enhance the low vacuum to high vacuum value, can meet the high vacuum condition requirements, such as higher requirements for rotary vane pump inlet
valve.
Unique integrated adjustable high vacuum pumping speed regulating valve orifice is more advantageous
Integrated high vacuum regulator valve V-shaped orifice adjustment makes the pumping speed is more superior, single crystal furnace installed in the main furnace exhaust pipe
is used to adjust the pumping rate, changing the old “butterfly + block plate valve “combination.
GDC-J solenoid valve and high vacuum baffle DDC-JQ electromagnetic vacuum gas valve coil will not produce high power long
Scientific way of circuit control and electromagnetic solenoid coil design allows efficient always work in the province of state power. At room temperature at 30 ℃
continuous work for 72 hours coil surface temperature ≤ 55 ℃, the product temperature is lower case. And electronic components are not heat. This will never burn out the coil
caused by the phenomenon.
How to choose a suitable casting method?
Casting is the pouring of liquid metal by melting into the mold, the solidified by cooling to obtain the required shape and performance of parts of the production process. Casting is commonly used in manufacturing methods, the advantages are: low cost, process flexibility, you can get complex shapes and large castings, in the machinery manufacturing account for a large proportion, such as machine tools accounted for 60 to 80%, 25% car Tractors accounted for 50 to 60%. Direct impact on the quality of the casting quality of the product, so casting the machinery manufacturing industry occupies an important position.
Casting is an ancient method of manufacturing in China can be traced back 6,000 years ago. With the development of industrial technology, casting technology is also very fast, especially in the late 19th century and first half of the 20th century, there has been a lot of new casting methods, such as low-pressure casting, ceramic casting, continuous casting, etc., in the 20th century half has been improved and practical. As the current quality of the casting, precision casting, casting and casting cost of the increasing demand for automation, precision casting technology toward the large, high quality, automation and clean in the direction of development, such as China in recent years in the precision casting technology, continuous casting technology, special casting technology, automation and casting foundry molding simulation technology develop rapidly.
The main casting process include: metal melting, model making, casting solidification and mold clean-up. The main materials used are cast steel, cast iron, cast non-ferrous alloys (copper, aluminum, zinc, lead), etc. Casting method is commonly used in sand casting, followed by special casting methods, such as: metal casting, investment casting, plaster casting. The sand casting sand can be divided into clay, organic binder sand, resin self-hardening sand, lost foam and so on.
Casting method of choice principle:
1 priority to the use of sand casting
According to statistics, or international, in all casting production in the 60 to 70% of the casting is sand production, and about 70% of which is clay, sand production. The main reason is casting sand casting method compared to other low cost production process is simple, short production cycle. So as the car s engine block, cylinder head, crankshaft and other clay green sand casting process is the production. When the wet type can not meet the requirements and then consider the use of clay, sand is dry sand, dry sand or other sand. Clay, green sand casting casting weight from a few kilograms up to tens of kilograms, while the production of dry clay castings can weigh tens of tons.
In general, for medium and large castings, cast iron can be self-hardening resin sand, glass, steel casting sand with water to produce, you can get accurate dimensions, smooth surface of the casting, but the cost is higher.
Of course, the production of casting sand casting accuracy, surface finish, material density and microstructure, mechanical properties are often poor, so when casting these performance requirements are higher, you should use other casting methods, such as investment casting (lost wax) casting, die casting, low pressure die casting and so on.
(2) casting and production volume should be compatible
Such as sand casting, mass production factory should create conditions for the use of advanced modeling techniques, making the core method. Old-style shock or shock-pressure molding machine production line productivity is not high enough, workers, labor-intensive, noisy and does not meet the requirements of mass production should gradually be transformed. For small castings, can be used horizontal or vertical type of non-box-type high-pressure molding machine production line, real-shape production and efficient, the area is also small; for pieces can be used in case of a high-pressure molding machine production lines, gas impact molding line, in order to adapt to rapid, high-precision molding production line requirements, building core method can be used: cold box, hot box, shell core system and other high-core method. Moderate volume of large castings can consider the application of resin sand molding and made from hard-core.
Single and small batch production of heavy castings, hand-shape is still an important means to adapt to a variety of complex shapes by hand are more flexible and does not require a lot of technical equipment. Can be applied to water glass sand, VRH law silicate sand, organic ester water glass from the hard sand, dry clay, sand and cement resin self-hardening sand, etc.; for the production of heavy-duty one-piece casting, modeling method used to pit low-cost production fast. Mass production of styling products or long-term multi-box shape, split box modeling method is more appropriate, although the mold, sand boxes, etc. started to invest in high, but can save hours of work style, improve product quality to be compensated.
Low-pressure casting, die casting, centrifugal casting and other casting methods, equipment and tooling for the price of expensive, so only suitable for mass production.