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用金属型铸造得到奥氏体基体的高铬铸铁磨球,只经时效处理,在水泥球磨机中运行时得到加工硬化,从而具有良好的耐磨性。
High-chrome cast iron balls with austenitic matrix cast from a metal mold are work-hardened only with aging treatment and during operation in a cement ball mill to provide good wear resistance.