Technology of high temperature and high pressure valve casting
1. Casting process analysis Before the casting of valve castings, relevant personnel need to know the valve structure and valve […]
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Vacuum casting technology of excavator balance weight
The main machine of excavator balance weight is an export product, and the requirements of surface quality and geometric size
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Casting of counterweight iron for Liebherr excavator
The counterweight iron material is HT100, and the structure is shown in Figure 1. It is a “bread” shape, on
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Computer promotes the improvement of casting process design level
① CAE (Computer Solidification Simulation): Predict casting defects and optimize casting process; Enhance scientific decision-making and reduce experience dependence; Shorten
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Low pressure casting of motorcycle aluminum alloy wheel hub
Casting mainly includes back pressure casting and low pressure casting. The pressure of low-pressure casting is relatively low, so it
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Refining process of motorcycle aluminum alloy casting wheel hub
Steel wheel hub and aluminum alloy wheel hub are common types of automobile casting wheel hub. Steel casting wheel hub
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Competition pattern of China’s large state-owned foundry
The impact of the project by competitors is mainly to compete for the market outside FAW Group, such as the
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The first cast iron plant of China First Tractor Co., Ltd
Company profile: The first cast iron factory is one of the professional factories subordinate to China First Tractor Co., Ltd.
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Lost foam casting technology of automobile engine cylinder block
Lost foam casting technology is made of polystyrene foam through the foaming process and the shape of the needed castings.
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Super duplex stainless steel SAF2507 valve casting
SAF2507 is the third generation super duplex stainless steel, American Standard (national standard ZG 00Cr25Ni7Mo4N). Its microstructure has an ideal
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Application of heating riser in ZG1Cr13 high pressure valve casting
High pressure valve is one of the main parts of oil and gas production wellhead device, and its body structure
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Technical requirements for high temperature and high pressure valve castings
When casting high temperature and high pressure valve castings, relevant personnel need to understand the relevant requirements of the service
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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