High Chromium Cast Iron Parts
High chrome cast iron is the third generation of wear-resistant material developed after ordinary white cast iron nickel hard cast iron. Due to the characteristics of high chromium cast iron itself, high chromium cast iron has much higher toughness, high temperature strength, heat resistance and wear resistance than ordinary cast iron.
- Product Introduction
High Chromium Cast Iron Parts
High chrome cast iron is the third generation of wear-resistant material developed after ordinary white cast iron nickel hard cast iron. Due to the characteristics of high chromium cast iron itself, high chromium cast iron has much higher toughness, high temperature strength, heat resistance and wear resistance than ordinary cast iron. High chrome cast iron has been praised as the best contemporary abrasive wear material, and increasingly widely used. The good wear resistance of high chromium cast iron mainly depends on its matrix organization and the type and distribution characteristics of carbide. High chrome cast iron is a multiple alloy with Fe, Cr and C as the basic components. The matrix of the newly solidified high-chromium cast iron is the austenite, which is stable after heating to a higher temperature and is saturated by elements such as C and Cr. When the temperature decreases, an austenitic transition will occur. Under normal conditions, high chrome cast iron presents a multiphase organization with mainly austenite. The cast iron of this tissue is used at high temperature to give full play to the potential of the material itself. High chromium cast iron is chromium system white cast iron with chromium content between 12% and 28%. Due to the large amount of chromium, the M3C carbide in white mouth iron becomes M7C3 carbide. This alloy carbide is very hard, giving high chromium cast iron good wear resistance. On the other hand, M7C3 carbide is isolated in rod during solidification, which improves the toughness of high chromium cast iron to a certain extent.
Application of high chromium cast iron ball mill in the ball mill Ball mill is the main equipment of cement, electric power, mining and other industries, and the ball mill is one of the main vulnerable parts of the ball mill. The grinding ball should have both high wear resistance and high toughness. Its wear-resistance plays an extremely important role in production. Therefore, it is very important to improve its hardness, impact resistance and wear resistance. In order to improve the density of the cast iron spheres and reduce hot cracking, Changzhi Iron and Steel (Group) Company improves the chemical composition and uniformity of the cast iron spheres by adding different rare earth elements. And successfully used in the production of cement ball mill, significantly improve the wear resistance of grinding ball.
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