球磨机衬板多采用高锰钢制作，经固溶处理后不但具有良好的冲击韧度，在经受强烈冲击的条件下硬度可从ＨＢ２００左右上升至ＨＲ５０以上。但对球磨机而言，物料和磨球对衬板产生的反复冲击的能量不足以产生有效的加工硬化作用，因而高锰钢材板就不能充分发挥其性能。 我国近年 Ball mill liner made of high manganese steel, after solution treatment not only has a good impact toughness, under the conditions of strong impact from the HB200 rose to about HR50 above. However, the ball mill, the material and the impact of the ball repeated impact on the liner is not enough energy to produce effective work hardening, high manganese steel plate can not give full play to its performance. In recent years in our country