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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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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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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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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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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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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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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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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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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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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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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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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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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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
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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
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Alloying and modification of chromium white cast iron
The wide industrial application of chromium white cast iron attracts researchers to try different carbide forming elements to improve the
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Test method for effect of niobium on eutectic temperature and as cast microstructure of ductile iron
Cast pig iron, ferrosilicon, ferromanganese, ferromolybdenum, pure copper and ferroniobium were used as raw materials. According to the target chemical
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Broken teeth of Ductile Iron Gears
The structure diagram of QT600-3 gear casting produced by ZHY casting is shown in Figure 1, and the overall dimension
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Effect of niobium on matrix structure of ball milled cast iron
The ferrite content in the matrix structure of ductile iron affects the carbon content of the matrix, thus affecting the
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Casting technology of a diesel engine case
In recent years, with the development of diesel engine to the direction of high power, high strengthening, low noise, low
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Casting process design of a diesel engine case
1. Pouring position and parting surface According to the practical production experience for many years and the principle of accurate
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Analysis of cold bending cracking of martensitic stainless steel castings
Metal bending test is a test method to measure the bending plastic deformation ability of metal materials under bending load,
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3D printing process for V-type gas engine cylinder block casting
The structure of cylinder block casting is complex, and there are many internal cavities. For this kind of structure casting,
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Cold bending cracking of martensitic stainless steel castings
The working conditions of hydraulic turbine equipment are strict, and runner, as the core component of hydraulic turbine, has been
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Development trend of new technology of automotive drive axle
1. Development of heavy truck drive axle to single stage reduction drive axle With the improvement of highway transportation conditions
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Annealing residual stress removal and tensile strength and hardness of high strength cylinder head castings
Three kinds of annealing process were selected, and the annealing time was 18 h, 11 h and 8 h, respectively.
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Effect of reducing residual stress in mold insulation of high strength cylinder head casting on tensile strength and hardness
The structure of 11 l engine cylinder head casting is shown in Figure 1, and the overall dimension of the
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Analysis of after sales problems of automobile drive axle
At present, in the after-sales of drive axle, we often receive many after-sales problems from customers. The following analyzes the