Defect analysis and optimization of steel castings for shell casting
The crack and sand inclusion of motor shell steel castings are the inertia quality problems in casting production, and they […]
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casting defects
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Formation of casting defects with tensile cracks in steel castings
The formation reason and process of tensile crack casting defect are different from that of shrinkage crack casting defect. 1)
Scientific
Casting defects of motor housing steel castings
From January to March 2020, ZHY Casting used the above process to produce 200 motor housings in small quantities. Basically,
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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
Scientific
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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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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Casting defects such as non elimination of casting stress, improper cold shut and preheating
Fig. 1 and 2 fracture of anchor claw in drop test, which is visually characterized by brittle fracture. The main
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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,
Scientific
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
Scientific
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
Scientific
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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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
Scientific
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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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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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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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.
Scientific
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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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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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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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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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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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
Scientific
Defect optimization and result analysis of sand casting coupling parts
Considering the easy realization degree and economic factors of each measure, and using measures 2, 3 and 6, the numerical
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Traditional casting defect analysis
Firstly, we take the shrinkage porosity defect in steel castings as an example to explore how the traditional foundry solves
Scientific
Analysis of undercut defects of large steel castings
1. Manifestations of undercut defects Undercut is the result of electric arc scouring or melting the base metal near the
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Fatigue test of casting defects in cast steel joints
1. Fatigue load loading In order to effectively test the influence of multiple casting defects on the fatigue performance of
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Fatigue analysis of casting defects in cast steel joints
Through the finite element calculation of fatigue strength and safety factor, the changes of fatigue performance caused by different casting
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Casting defects of cast steel joints
With the continuous improvement of China’s economic strength and construction level, various steel structure buildings with beautiful appearance, high reliability