Formation mechanism of hot tears casting defects
The formation mechanism of hot tears casting defects mainly includes liquid film theory and strength theory. According to the liquid […]
Scientific
Scientific
Finite element mesh generation of mud pump body in sand casting
Mesh generation is the basis of numerical simulation. At present, there are two main methods of division, namely, finite difference
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Weld properties of cast steel joints
In terms of experimental research on weld performance of cast steel joints, Zou Hui of Southeast University conducted fatigue tests
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Basic phenolic resin sand casting and furan resin sand casting
The new sand process scheme of sand mold casting and the reclaimed sand plus new sand process scheme pour 8
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Design of feeding system and chilling system for sand casting of mud pump body
During the solidification process of sand casting, the volume of steel castings will shrink, and shrinkage porosity, shrinkage cavity and
Scientific
Determination of casting defect size of cast steel joint
According to the constancy of sound velocity propagation in the same medium and the proportional relationship between propagation distance and
Scientific
Morphology analysis of hot tears casting defects
The appearance characteristics of hot tears casting defects are that the tears propagates along the grain boundary, the appearance is
Scientific
NDT test samples of multiple cast steel joints
The samples for nondestructive testing are 24 cast steel joints randomly selected from the cast steel joints of civil engineering
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Determination of process scheme of pouring system for mud pump body in sand casting
It can be seen from the simulation results that the pouring system of the mud pump body of sand casting
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Cracks and sand inclusion defects in steel castings
The causes of cracks and sand inclusion defects in motor shell steel castings are studied from the perspective of process
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Types and causes of casting defects of cast steel joints
Cast steel joints will inevitably produce some defects in the production process, such as hot crack, shrinkage cavity, delamination, slag
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Calculation of sand casting gating system for mud pump body
Scheme I The casting mud pump body adopts single bag and single hole pouring, and the diameter of the injection
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Mechanical properties of cast steel joints
The research on the mechanical properties of cast steel itself includes the research on the mechanical properties of cast steel
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Sand casting of motor shell steel castings
① Sand casting process scheme The sand casting process scheme adopts the top pouring system. All the workpieces are in
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Ultrasonic flaw detection of casting defects of medium and large steel castings
Ultrasonic flaw detection mainly detects the near surface and internal quality of steel castings, and the internal quality of steel
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Casting defects of cast steel joints
With the development of spatial structure, the span of structure is becoming larger and larger, and the forms are also
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Sand casting technology of motor shell steel castings
Due to the differences in product structure, weight, process equipment of production enterprises, production conditions and process technology level, there
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Ester hardened sodium silicate sand casting motor shell casting
Ester hardened sodium silicate self hardening sand process is a new generation of self hardening sand process developed on the
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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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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)
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Production quality of steel castings for shell casting
From April to December 2020, ZHY casting fully applied the optimized new sand mold casting process to production, and produced
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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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Optimization of pouring process in sand casting
The pouring process of sand casting is a very important link in the whole casting process. Usually, many foundries regard
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Modeling design of mud pump body in sand casting
It is necessary to establish an effective three-dimensional model when using ProCAST to analyze the filling process of sand casting
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Structure and process optimization of sand casting
When designing the structure of sand castings, we should not only consider the requirements of mechanical properties and working performance,
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Analysis on sand casting technology of mud pump body
The mud pump body of sand casting is made of ZG35, which belongs to medium carbon cast steel, with high
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Optimization of molding sand process in sand casting
Crack casting defect is the biggest obstacle restricting the popularization and application of furan resin sand process in steel castings.
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Technical requirements for sand casting of motor housing steel castings
The manufacturing of motor shell steel castings is relatively complex, mainly including sand casting, smelting and pouring, heat treatment, flaw
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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
Improvement scheme of insufficient pouring defects of investment casting
After analyzing the defects, another improvement scheme is made, as shown in the figure. In the original scheme, the investment