Generally, for the newly put into production lost foam Castings, engineers and technicians rely on experience to select pattern density, pouring temperature, negative pressure, coating and other parameters, and design the pouring system through repeated experiments and modifications, so as to finally complete a more reasonable casting process. However,...
The major assemblies of auto parts, such as drive axle assembly, engine assembly and gearbox assembly, are inseparable from the production of castings, of which the castings on the engine account for about 75% of the total weight. The proportion of casting blank parts invested in automobile processing industry...
1. CE The mechanical properties of gray cast iron are affected not only by the basic elements in cast iron, but also by the alloy elements and trace elements. The effect of carbon and silicon on the mechanical properties and microstructure of gray cast iron is usually expressed by...
At present, most of the gray cast iron produced has low strength and high residual stress. The mechanical properties and metallographic structure of the high-strength positioning plate require solid sampling, and there are high requirements for strength and hardness. Therefore, the research and development of the melting process of...
Gray cast iron material has the advantages of low price, excellent casting performance, easy cutting and good wear resistance. It is a raw material widely used in industrial production. The improvement of its different properties can be applied to different fields, which is unmatched by other materials. When gray...
Through the study of fatigue wear failure forms and influencing factors, it is understood that fatigue defects mainly appear on the surface of gray cast iron. Therefore, strengthening the contact surface can effectively improve the contact fatigue performance of gray cast iron. In modern industry, the original gray cast...
In order to effectively improve the fatigue wear resistance of gray cast iron, it is necessary to understand the fatigue wear failure form and its formation mechanism, and then eliminate the factors conducive to the formation of fatigue defects to improve its fatigue wear resistance. The common rolling contact...
Due to the excellent performance of gray cast iron, it has become one of the essential components of precision machine tools; On the other hand, the existence of a large number of flake graphite in gray cast iron will seriously affect its fatigue life and mechanical properties, which restricts...
Cast iron is the most widely used casting metal material in modern industry. The applications of cast iron in various fields of national economy are numerous. With the development of industry and technology, the mechanical properties, processability and economy of cast iron raw materials are continuously improved. As one...
The process selection of rare earth inoculating gray cast iron depends on the adding method of inoculant, mainly including flat incubation in the bag, late inoculation and in mold inoculation. Because the flat incubation agent has timeliness, that is, the effect of pre incubation agent a decreases with the...