Solidification structure of chromium white cast iron was modified by pressure casting technology
The purpose of this study is to modify the solidification structure of chromium white cast iron by pressure casting. The […]
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Research status of pressure casting of chromium alloys
The solid-liquid phase transition process changes greatly under pressure. With the increase of the temperature of the solid-liquid phase line,
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Effect of solidification parameters on Microstructure of cast chromium alloy
The effects of pressure on solidification structure, including nucleation rate, undercooling and diffusion coefficient of alloy elements, provide a good
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Effect of pressure on solidification of cast chromium alloy
The solidification process can be regarded as a binary system with solid-liquid two-phase equilibrium. The degree of freedom of the
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Study on tool Wear of PCBN Cutter in Milling vermicular Graphite cast Iron
Many studies have shown that the tool life of cutting vermicular graphite cast iron is 1/10 of that of cutting
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Application and control of casting coating density
Uniform and stable coating composition is the basis to ensure the coating process performance, which belongs to static control for
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According to the casting defects of gray cast iron cylinder body, type selection and coating formulation are developed
For different casting defects (such as sand sticking, porosity, sintering, veining, shrinkage porosity at hot spot, etc.), the foundry should
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The coating for gray cast iron cylinder block is selected according to the core assembly process and sand core
The gray cast iron cylinder body adopts the traditional horizontal pouring process, the sand core is dipped with coating respectively
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Optimization and simulation analysis of casting process
1. Defect analysis of original process plan In the original process, two blind risers are set at positions a and
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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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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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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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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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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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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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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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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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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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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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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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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 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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Analysis and prevention measures of blowhole defect in nodular cast iron roller
1. Defect analysis (1) The inner cavity of the cylinder body is a long strip-shaped sand core, and the gas
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Analysis and preventive measures of sand hole and slag hole defect in nodular cast iron roller
1. Defect analysis (1) The slag cleaning treatment of molten iron is not complete; (2) The results show that the
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Analysis and preventive measures of shrinkage hole defect of nodular cast iron roller shaft head
1. Defect analysis (1) There is a great difference in the wall thickness between the cylinder body and the shaft
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Effect of solidification pressure on growth mode of primary carbide in chromium white cast iron
In alloy 2, the nucleation and growth of primary carbides are in the high temperature liquid phase, and there is
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Analysis and preventive measures of casting deformation defect of nodular cast iron roller
1. Defect analysis (1) The stiffness of the base frame of the model is not enough, and the model is
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Production process of casting defects in nodular cast iron roller
The basic structure of roller casting includes barrel and shaft head, which is in the shape of revolving body. The
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Analysis and prevention of broken teeth of nodular cast iron gears
The casting is molded in a box of 2 pieces, with 550 kg spheroidizing treatment package, 10 boxes and 3