Sand casting of automobile engine cylinder head
In the new era of the 21st century, China’s automobile industry is booming and has become a pillar industry of […]
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Over solidification process and defect analysis of mold filling in investment casting
The casting simulation software ProCAST can predict the casting defects such as shrinkage porosity, shrinkage cavity and slag inclusion in
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Quality control of high temperature and high pressure valve castings
The process scheme is put into production after being determined by casting CAE simulation, and all valve castings are qualified
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Smelting process of high temperature and high pressure valve castings
CF8C material is generally selected as valve casting material because of its small deformation, high strength, wear resistance and corrosion
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Wear resistance of centrifugal casting isothermally quenched ductile iron bushing
In addition to Si, Mn and C elements, a certain amount of Cu is added to nodular cast iron. Cu
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Design of gating system for high temperature and high pressure valve casting
The alloy element Cr content of cf8c material is high. The high melting point of Cr increases the liquidus temperature
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Casting process design of high temperature and high pressure valve
Although there are differences in local structure of valve castings of hydrocracking unit, the common structural feature is that the
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Analysis of casting process of high temperature and high pressure valve
The structure of dn400-2500lb valve casting is shown in the figure. The blank weight of the valve casting is 4300
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Process requirements for high temperature and high pressure valve castings
The working environment of valve castings for petrochemical industry has the characteristics of high temperature, high pressure and hydrogen (including
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Low pressure die casting forming technology of automobile engine cylinder block
Low pressure die casting makes the metal liquid fill in the anti gravity direction by controlling the gas flow. It
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Analysis of surface hardness and mechanical properties of gray iron castings for valves
The national standard GB / T 9439-1988 gray iron castings divides the inspection of mechanical properties into tensile strength and
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Surface hardness and mechanical properties of gray cast iron for valves
With the rapid development of valve manufacturing industry, the professional production of domestic valve enterprises is becoming stronger and stronger,
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According to the crack defect control measures of duplex stainless steel valve castings
1. Improve the concession of sand core In order to ensure that the high-temperature strength of the sand core of
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Causes of cracks in duplex stainless steel valve castings
After ZHY casting received the order for the production of seawater swing check valve (as shown in Figure with nominal
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Overview of numerical simulation of lost foam casting
In the research of numerical simulation of lost foam casting, Wang et al. Analyzed the mold filling process of aluminum
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Determination of other process parameters of high temperature and high pressure valve casting
The production of ZHY casting steel castings adopts the chilled furan resin quartz sand process, and the chilled furan resin
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Design and parameter setting of gating system in investment casting
The pyramid lattice sandwich structure with core member length L = 32mm, core and panel angle w = 60 °
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Optimization of investment casting process parameters to avoid casting defects
Pouring temperature, shell preheating temperature, investment casting pouring speed and other process parameters are very important to the molding quality
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Development of ductile iron valve castings
ZHY casting produced a batch of 500mm ductile iron valve castings for an enterprise in Japan. The valve is composed
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Casting technology of nodular cast iron valve
The quality requirements for nodular cast iron valve castings are very strict, the body spheroidization rate is above grade 3,
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Production of valve castings from as Cast Ferritic Ductile Iron
In recent years, with the continuous expansion of the market, the number of valve ductile iron parts in our factory
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Pattern, gating and riser combination and size control of lost foam casting for stainless steel valves
The gating system of stainless steel valve is designed with a variety of pouring methods, such as bottom injection, top
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Die casting technology of automobile engine cylinder block
Die casting technology uses the piston to fill the mold cavity with molten liquid metal at high pressure and high
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Process control of valve casting in Lost Foam Casting
1. Vibration modeling The sand used for lost foam casting of valve castings is dry sand without binder, which has
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Quality control of coating for valve castings
1. Coating performance requirements The selection of different formulations, components and the proportion of various components have a great impact
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Computer simulation technology in the production of China large steel castings
Large steel castings have large size and long production cycle. They are generally produced in small batch or even single
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Heat treatment technology in the production of China large steel castings
After pouring of large steel castings, there are great differences in the cooling rates of different parts, appearance and core
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Quality control of foam in Lost Foam Casting for stainless steel valves
1.Selection and pretreatment of foam raw materials EPMMA and STMMA foam are often used in stainless steel valve castings. The
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Characteristics of lost foam casting valve body
After nearly half a century of development, lost foam casting technology has gradually entered a mature stage. Its products have
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Study on Numerical Simulation of Lost Foam Casting
In recent years, with the development of casting numerical simulation technology, there are many research results in traditional pressure casting