Explanation

cast iron with high hardness and high wear resistance under certain wear conditions. Including chilled cast iron, alloy grey cast iron, medium manganese ductile cast iron, high phosphorus cast iron, alloyed white cast iron, etc. The wear resistance of cast iron mainly depends on the type, quantity, size and distribution of matrix structure and hardening phase. Different types of wear resistance cast iron are suitable for different working conditions. For example, graphite in low alloy gray cast iron (or nodular graphite) wear resistance cast iron has good solid lubrication, and alloy elements such as Cr, Ni, W, Mo, Ti, V, Cu, P are added to form various hard phase (such as phosphorus eutectic, alloy carbide or nitride), which have high hardness and wear resistance, and some also have good corrosion resistance, so it is suitable for manufacturing wear-resistant mechanical parts such as machine tool guide, cylinder liner, piston ring, etc; alloyed white cast iron (GB/T 8263-2010) has strong abrasive wear resistance and is widely used as agricultural machinery, grinding balls, coal grinding machine parts, shot blasting machine blades, mud chestnut, etc; High chromium cast iron contains a large amount of chromium containing carbide with high hardness, which has a very good resistance to foreign hard particles or abrasives. It is suitable for making grinding balls, lining plates, impurity flow passage parts, etc.

Classification