Wear-resistant steel ball is a grinding medium used in ball mills to crush materials in the mill. There are four types of wear-resistant steel balls: The first type is white cast iron with chromium as the main alloying element, abbreviated as chromium alloy cast iron, and the cast grinding ball made of chromium alloy cast iron is called chromium alloy cast iron grinding ball. The second is that the casting grinding ball made of nodular cast iron is called nodular cast iron grinding ball, in which the matrix structure obtained by heat treatment is mainly Bainite nodular cast iron grinding ball, which is called Bainite nodular cast iron grinding ball for short; The matrix structure obtained by heat treatment is mainly Martensite ductile iron grinding ball, which is called Martensite ductile iron grinding ball for short. The third type is a steel ball made by hot-rolling round steel produced by a steel mill, with full process automation control. The steel ball has uniform hardness, high core hardness, low crushing rate, and high impact value. The fourth type is made by forging with train wheels. This type of steel ball has low cost, but the core hardness of the steel ball is low, easy to break, and poor wear resistance. There are three types of steel balls: forged steel balls, cast steel balls, and hot-rolled steel balls.
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