Comprehensive failure analysis of QT800-3 nodular cast iron crankshaft
Based on all the previous analysis, the fracture process of nodular cast iron crankshaft is as follows: in the induction […]
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ZHY casting gray cast iron and nodular cast iron wind power castings
Casting refers to pouring molten metal into the mold, cooling and forming to form a casting that meets the relevant
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Prevention of shrinkage porosity of nodular iron castings
1. Chemical composition control The chemical composition of nodular cast iron for wind turbine shall be strictly controlled, especially C,
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Elimination of casting porosity in stainless steel butterfly valve body and control of melting and pouring temperature
After SAF2507 is smelted to 1 670 ~ 1 700 ℃, turn off the power supply and let it stand
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Heat treatment process of bainite Martian multiphase wear resistant cast steel for lining plate of cone crusher
The research content comes from the school enterprise cooperation projects “research and development of new cone crusher liner” and “research
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Effect of heat treatment process on bainitic Martian multiphase wear resistant cast steel
There are two traditional methods to obtain bainitic steel: (1) Isothermal quenching method: heat the steel to a certain temperature
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Elimination of casting porosity in stainless steel butterfly valve body and control of steelmaking raw materials
(1) Proportion control of new material and returned material. The main chemical composition of SAF2507 super duplex stainless steel is
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Effect of microstructure of bainite martensite composite wear resistant cast steel
As shown in Figure 1, the types of bainite structure include upper bainite, lower bainite, carbide free bainite, granular bainite,
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Prevention and treatment of casting porosity in sand coated iron mold cylinder block casting
1. Increase the section size of the internal sprue In order to reduce the large amount of gas generated by
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Control of ambient temperature and humidity for eliminating casting pores in stainless steel butterfly valve body
The curing rate of resin self hardening sand increases with the increase of ambient temperature (including raw sand temperature). When
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Effect of composition of bainitic Martian multiphase wear resistant cast steel
The chemical composition has a great influence on the mechanical properties and microstructure of bainitic Martian multiphase wear-resistant cast steel.
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Casting porosity of super duplex stainless steel butterfly valve body
Super duplex stainless steel (00Cr25Ni7Mo4N, French brand SAF2507) is widely used in nuclear industry, such as valve body, main coolant
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Development of bainitic martensitic wear resistant cast steel
In the late 1920s, Robertson first discovered the medium temperature transformation product later named bainite in steel. Later, the researchers
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Application of surface strengthening technology of wear-resistant materials in crusher liner casting
Surface strengthening technology includes surface treatment, surface processing, surface coating, surface modification and thin film technology. Surface strengthening technology has
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Microstructure and properties of vanadium titanium gray cast iron with different composition
Brake drum is an important component of automobile drum brake and one of the main security parts of automobile. It
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Isothermal quenching and boronizing isothermal quenching of gray cast iron
Gray cast iron is an Fe-C-Si alloy containing graphite phase in pulse distribution. The annual output of castings in the
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Main casting methods of bimetallic composite lining plate
Bimetallic composite technology is becoming more and more widely used in the manufacture of wear-resistant materials. The fundamental reason lies
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Martensitic wear-resistant cast steel and bainitic Martian multiphase wear-resistant cast steel
The total amount of alloy of low alloy wear-resistant cast steel is less than 5%, and the total amount of
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Research status of wear-resistant and modified ultra-high manganese steel for lining plate
The work hardening ability of high manganese steel depends on the size of stress. The yield strength of high manganese
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Experimental results of pin disc wear of bainite horse multiphase wear resistant cast steel for cone crusher liner
In the wear test of iron and steel materials, the wear resistance can be obtained by taking the reciprocal of
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Research status of wear-resistant and modified medium manganese iron and steel materials for lining plate
Austenitic Medium Manganese Steel is a new wear-resistant material obtained by reducing the content of manganese and adding a certain
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Pattern forming of Lost Foam Casting Based on cj2m PLC
Lost foam casting is a green casting method with the characteristics of cleaner production. The white mold pattern with the
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Research status of wear-resistant ordinary high manganese steel materials for lining plate
Manganese steel, as a large category of wear-resistant steel, mainly includes ordinary high manganese steel and modified high manganese steel.
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Research prospect of low carbon modeling and compound mold optimization in Moldless sand casting process
There are still some deficiencies in the research: the composite mold design scheme proposed for the casting is based on
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Innovation of low carbon modeling and compound mold optimization in Moldless sand casting process
The main innovations can be summarized as follows: 1.Aiming at the current situation of insufficient research on the sustainability of
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Low carbon modeling and compound mold optimization of mold less sand casting process
In view of the problems of high energy consumption, high pollution, large machining allowance and low production efficiency in the
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Comparative analysis of carbon emission and carbon efficiency in sand casting
The carbon emission and carbon efficiency of single casting technology and composite casting technology are analyzed in combination with Fig.
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Comparative analysis of energy consumption and energy efficiency ratio in sand casting
By comparing the energy consumption per unit casting of traditional pattern modeling and compound forming method (before optimization), it is
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Comparative analysis of resource consumption in sand casting
Firstly, the main material consumption of single casting technology and composite forming method in unit casting production is analyzed, as
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Defects in heat treatment process of large gray iron castings
At present, with the development of marine engine to large-scale, the demand for large cylinder diameter, large tonnage and high-performance