Casting defects of motor shell steel castings
The hot crack casting defects are analyzed from the macro and micro morphology. The hot crack can be divided into […]
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steel casting
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Hot crack defects of furan resin sand casting steel castings
Most of the previous studies put forward the thermodynamic and dynamic conditions of hot crack formation from the perspective of
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Smelting and casting process of steel castings for motor casing
In terms of smelting process and equipment for molten steel of steel castings, developed countries usually adopt relatively advanced process
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Alkaline phenolic resin sand casting steel castings
Ester cured alkali phenolic resin is a phenolic resin formed by condensation polymerization of phenol and formaldehyde catalyzed by strong
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CO2 sodium silicate sand casting motor shell casting
There are two kinds of sodium silicate sand processes, CO2 sodium silicate sand process and ester hardened sodium silicate self
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Formation of shrinkage cracks in steel castings
1) The fillet of steel casting belongs to the hot spot, which usually lags behind the solidification of other parts.
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Sand sticking defect of bolster and side frame steel castings
The sand sticking parts of the bolster and side frame are mainly concentrated near the inner sprue and the root
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Sand inclusion defect of bolster and side frame steel castings
During the production of bolster and side frame by green sand casting, sand inclusion defects are found, which are mainly
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Production practice of carburizing defects of lost foam casting steel castings
In 2014, ZHY Casting introduced a small lost foam casting production line, mainly for the development of castings for waste
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Smelting and pouring process of steel castings for shell casing
① Molten steel smelting process Element C% Si% Mn% P% S% Cu% Range 0.10-0.28 0.20-0.45 0.30-0.68 ≤0.035 ≤0.035 ≤0.30 5T
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Magnetic particle inspection for casting defects of medium and large steel castings
In the field inspection, we should focus on the parts prone to casting defects. According to my experience in the
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Sand casting technology of motor shell steel casting
The weight of the steel casting of the motor shell is 381kg, which is similar to the barrel structure. The
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Defect analysis and process optimization of sand casting of steel castings
In view of the serious casting defects in the small batch production process of ZHY Casting motor shell steel castings,
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Hot crack defects of furan resin sand casting motor shell steel castings
The formation mechanism and influencing factors of hot crack casting defects are very complex. So far, there are three main
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Furan resin sand casting motor shell steel castings
The name of furan resin sand comes from furan no bake process in English. Furan resin sand casting is a
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Casting technology of steel castings for motor housing
In 2020, the international and domestic economy went down seriously, the domestic foundry industry was in great depression, and many
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Formation mechanism of MNS inclusion defects in steel castings
The two kinds of MNS inclusion defects observed are formed on the surface of oxidized inclusions. According to the literature
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Microstructure and chemical composition of MNS inclusion defects in cast steel
Two different MNS inclusion defects were observed in cast steel. Fig. 1 shows the microscopic morphology of the first MNS
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New technology to reduce carburization of lost foam casting steel castings
At present, the new technologies and methods to reduce the carburization of steel castings mainly include negative pressure combustion empty
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MNS inclusion defects in steel castings
The material studied is low alloy steel, and its main alloy elements are common elements such as C, Si, Mn,
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Characteristics of slag inclusion and sand hole defects in medium and large steel castings
Fig. 1 slag inclusion defect on the upper surface of medium and large steel castings after processing, which is visually
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MNS inclusion defects in steel castings
The non-metallic inclusions in molten steel during smelting and pouring are one of the important causes of cracks in steel
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Slag inclusion casting defects in lost foam casting of steel castings
Slag inclusion casting defect refers to the casting defect formed by dry sand, coating and other inclusions as molten iron
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Analysis method of insufficient pouring defects of investment casting steel
Another investment casting thin-walled steel casting of ZHY casting was under poured in the trial production process, and the defects
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Repair of casting defects of medium and large steel castings
Different from forged steel parts, steel castings for hull structure have low carbon content and good welding performance. Defective parts
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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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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)