Basic information of casting product for a high class valve body
1. Product structure and technical requirements The diameter of valve body is ϕ 254 mm, the maximum outline size of […]
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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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Improvement of casting process for automobile clutch flywheel
1.Runner 2. Runner cup 3. Riser 4, 5, 6. Ingate 7. Lap sheet 8. Sprue 9. Annular runner The original
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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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Analysis of slag inclusion in brake shell produced by Lost Foam Casting
1.Current process Due to the serious slag inclusion problem, the white mold material is replaced by stmma, the specific gravity
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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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Improvement of casting process for excavator guide wheel
1、 Improvement measures for defects such as sand hole and air hole are as follows. 1) Properly increase sand mold
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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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Analysis of casting process of excavator guide wheel and confirmation of main factors
Through the analysis of the failure parts by using the main factor diagram method, the causes of the fracture of
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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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Riser design of high carbon steel roll casting
Riser is a kind of structure for storing liquid metal in the mold, which is used to compensate the possible
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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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Riser design of high carbon steel roll casting
Through the observation of the defects, it is found that the defects are shrinkage porosity and shrinkage cavity, which are
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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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Finite element analysis of casting process scheme for extra large crusher frame
1. Static structural analysis Finite element static structural analysis is carried out for the box type and deep cavity type
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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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Scanning detection process and image generation of casting water cooled shell sample
After the sample navigation is completed, the detection can be started, as shown in Figure 1. Move the sample table
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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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Structural characteristics of water cooling shell and analysis of internal defects of castings
As shown in Figure 1, a low-pressure casting water-cooled housing for electric bus is in the shape of a drum
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The second and third trial production of cylinder head castings
The original material of zc170 cylinder head is HT300, the technical requirements are WCu = 0.5% ~ 0.8%, WCR =
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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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First trial production of cylinder head casting
1. Primary raw materials Q12 pig iron, industrial scrap, vermicularizing agent (wre = 9% – 11%, WMG = 4% –
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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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Controversy on the influence of metallurgical factors on shrinkage cavity and porosity of ductile iron
It is very important to select the appropriate carbon equivalent or carbon silicon content for the production of sound castings
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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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Effect of metallurgical factors on shrinkage cavity and porosity of ductile iron
1. Carbon, silicon and carbon equivalent When the carbon equivalent is at the eutectic point, the casting process performance is
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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