Characteristics of porosity and shrinkage defects in medium and large steel castings
Fig. 1 the visual characteristics of air hole defects on the upper surface of steel casting hub are round, the […]
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Effect of pouring temperature on insufficient pouring defects of investment casting steel
In the casting defect scheme, the actual pouring temperature is 1560 ℃, and the actual average pouring speed is 0.38
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Semi rough machining of sand casting mold template
Use the tool with diameter d = 30mm and bottom corner radius r = 2mm for semi rough machining, create
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Improvement of casting defects of bolster and side frame steel castings
1. Improvement measures 1.1 Inspection and control of molding sand performance While maintaining the original test items and requirements of
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Sand inclusion and sticking defects of steel castings of bolster and side frame
Bolster and side frame are important running parts on the bogie of rail freight car. They bear the gravity of
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Reducing the carburization of lost foam casting steel castings
The measures and methods to reduce the carburization of lost foam casting steel castings mainly include the following aspects: (1)
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Study on Carburizing defects of lost foam casting steel castings
The lost foam casting method is flexible and convenient in modeling and pouring, especially for products with complex structure. lost
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Difficulties in the application of sand casting simulation
It is difficult to obtain accurate input parameters in sand casting simulation. For material properties, although sand casting simulation software
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Casting defect inspection of medium and large steel castings
According to the thinking method of formulating the inspection standard of JCSS hull steel castings in Japan, medium and large
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Characteristics of cracks defects in medium and large steel castings
Hot crack: the crack is an irregular curve, the inner surface is rough and black brown iron oxide. Cold crack:
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Analysis of insufficient pouring defects of investment casting steel castings
The support size of a thin-walled steel casting is 400 mm × 310 mm × 270 mm, minimum wall thickness
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Improvement of insufficient pouring defects of investment casting
Because the exhaust rib is not set in the original scheme, the simulation shows that the gas pressure in the
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Insufficient pouring defects of investment casting steel
In recent years, with the application of advanced technologies such as high-performance (steel, non-ferrous alloy, etc.) materials, CAE analysis and
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Porosity casting defects in lost foam casting of steel castings
According to the causes, the pores produced by lost foam casting steel castings are divided into the following four categories.
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Defects in lost foam casting reverse spray casting of steel castings
During the pouring process, due to the excessive amount of gas released by the thermal decomposition of the gas mold
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Local solidification time of sand casting coupling parts
The figure below is a cloud diagram of local solidification time of sand casting coupling parts. At 81 seconds, the
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Negative pressure cutting casting defects of steel castings in lost foam casting
Main reasons: when the sand box is under vacuum, the external air is sucked into the mold due to the
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Application steps of sand casting simulation
The application of sand mold casting simulation should not only find out the causes of defects, but also put forward
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Carburizing casting defects of steel castings in Lost Foam Casting
Carburizing is one of the common casting defects in the lost foam casting process of steel castings. The carburizing casting
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Lost foam casting of steel castings
Lost Foam Casting (EPC), also known as negative pressure full mold casting, has developed to a considerable scale since it
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Effects of casting defects and structural dimensions of heat resistant cast steel liner on its properties
1. internal stress is generated during lining plate casting, resulting in cracks in lining plate; 2. the fracture of the
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Cylinder block casting riser
Chilled iron is the most commonly used chilling material to control the solidification of cylinder block castings. It can be
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Improvement measures of heat resistant cast steel lining plate
1. To reduce and eliminate the stress concentration of the lining plate, the specific methods are as follows: during casting,
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Effect of chemical composition of heat resistant cast steel liner on its properties
The chemical composition of ZG35Cr24Ni7SiN material of heat-resistant steel casting is as follows: Brand C Mn Si Cr Ni Mo
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Defect optimization of sand casting coupling parts
The specific optimization measures are as follows: set annular external cold iron in sand core 2. The purpose of this
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Development of casting simulation technology
For thousands of years, people have mainly solved engineering problems through trial and error, especially how to produce high-quality castings.
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Original casting process scheme of cylinder block
The upper half of the middle cylinder block for a certain type of steam turbine is made of ZG20CrMo, the
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Steam turbine cylinder steel castings
The split flange of steam turbine cylinder block steel casting is the upper and lower half of the cylinder block.
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Analysis of cold crack defects in large steel castings
1. Manifestations of cold crack defects Under the joint action of welding stress and other embrittlement factors, the bonding force
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Defects of heat resistant cast steel lining plate
The heat-resistant cast steel lining plate (ZG35Cr24Ni7SiN) is easy to crack, melt or even fracture during use, and has a