Automatic cleaning and grinding technology of steel castings
As a big foundry country, the development level of China’s foundry industry is constantly improving. However, the problem of casting […]
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Establishment of constitutive equation of coiled graphite cast iron GJY450
The relationship between stress, strain, strain rate and temperature of materials is its inherent property. There are many studies on
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Solution of shrinkage defect in die casting front cover
With the development of automobile manufacturing industry, the requirement of reducing energy consumption is higher and higher. Automobile parts are
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Development and research of vermicular graphite cast iron
In the 1950s, kdmills and other scholars discovered vermicular graphite cast iron, but it did not attract attention at that
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Technology of wear resistant transmission connecting rod for automobile turbocharger
1. Process arrangement The whole process of turbocharger wear-resistant transmission connecting rod is as follows: 1.1 Division of processing stages
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Technical difficulties of automobile clutch Flywheel Casting
The structure of clutch flywheel casting is shown in Fig. 1. It is a typical small disc casting with diameter
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Application of wedge block in casting process of automobile clutch flywheel
The clutch flywheel is one of the main parts of the automobile transmission mechanism, which is the key to cut
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Experimental verification of slag inclusion defect of brake shell produced by Lost Foam Casting
In order to verify the correctness of defect cause analysis, the project team carried out process verification test. The test
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Slag inclusion defects of brake shell in Lost foam casting production
Lost foam casting technology is widely used in the foundry industry because of its advantages of small investment, low energy
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Casting technology of excavator guide wheel
With the continuous development of mechanization and integrated construction in China, the scale of construction machinery industry has been expanded
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Application of gradient riser in production of high carbon steel roll casting
The typical specification characteristics of section steel universal edging roll and special-shaped steel s-roll products are that the roll neck
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Effective application of vermicular graphite cast iron in internal combustion engine
Internal combustion engine occupies a very important social position in power machinery. The internal combustion engine has high thermal efficiency,
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Analysis of graphite growth principle in Vermicular Graphite Cast Iron Technology
In order to have an effective understanding of vermicular graphite cast iron technology, we must have a comprehensive understanding of
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Effect of vermicularization rate on internal porosity of castings
Diesel engine is widely used, working environment is poor, working time is long. Because the cylinder head of diesel engine
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Often neglected metallurgical factors affecting shrinkage cavity and porosity of ductile iron
Although the metallurgical quality of molten iron is affected by many factors, foundry workers have found the quantitative index of
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Process improvement of valve plate defect of automobile gearbox in die casting production
1. Set ice pack and extend setting time appropriately Through X-ray examination and local dissection, it is found that the
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Analysis of defects of valve plate of automobile gearbox in die casting production
After adjusting the production conditions to the appropriate level, the batch trial production was carried out, and it was found
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Original production process for defects of valve plate of automobile gearbox in die casting production
1. Component classification block The structure of the valve plate of the automobile gearbox is complex and has a large
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Effect of oxide on nucleation of graphite in cast iron
In the solidification process of metal nonmetal system, nonmetal matter can be the core of metal crystallization, but metal can
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Oxygen content in cast iron
Although the atomic radius of oxygen is very small (0.66), it is a highly active element and can form compounds
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Oxygen element in cast iron
Among the three gas elements, the solubility of oxygen in liquid or solid cast iron is the smallest, but the
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The source of nitrogen in cast iron
Nitrogen contained in cast iron mainly comes from atmosphere, various furnace charges and molds. Generally, nitrogen is not contained in
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Nitrogen element in cast iron
There are two forms of nitrogen in cast iron: one is dissolved nitrogen; The other is to form nitride with
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Development status of cast heat resistant aluminum alloy
Cast heat-resistant aluminum alloy is a kind of aluminum alloy which is prepared by casting, has good oxidation resistance and
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Turbine 360 ° Strength of low pressure inner cylinder with volute inlet
In China’s power industry system, many high-power units have been running for a long time, and there are deviations between
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Effect of solidification pressure on eutectic structure of cast chromium white cast iron
The content and spacing of eutectic structure, the content and distribution of different phases in eutectic structure of two kinds
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Effect of niobium on graphite content and spheroidization rate of ball milled cast iron
The graphite content and spheroidization rate reflect the degree of graphitization and spheroidization. The typical morphology of graphite balls in
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Control technology of solidification structure of cast chromium alloy
The effect of semi-solid forming process is better than other methods such as modification. However, the possibility of defects (shrinkage
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Effect of niobium on eutectic temperature of ductile iron casting
The figure shows the solidification cooling curve of nodular cast iron with different Nb content. It can be seen that
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Directional solidification technology for solidification structure of chromium alloys
Directional solidification (UDS) is a method to produce eutectic composites or in-situ composites by applying high directional temperature gradient to