EPC casting process with adopting hollow EPS pattern and EPMMA pattern to elimi nate car burization,wrinkle and inclusion defects was introduced,and high qual ity grinding balls were produced.

• 介绍了采用空心EPS模样、EPMMA模样解决增碳、皱皮、夹杂缺陷的工艺途径,生产出优质的磨球。