提高低合金铸铁磨球冲击韧度的研究

Study on Improving Impact Toughness for Grinding Balls Made of Low Alloy Cast Iron

本文针对低合金铸铁磨球，当尺寸较大和在较大尺寸球磨机中使用时，生产中出现破碎率高的严重问题，从热处理角度研究可大幅度提高磨球冲击韧度的措施，取得明显效果。

Aimed at the problem of high broken rate of low alloy cast iron grinding ball,selection of heat treating process to obtain optimized microstructure of the ball, the impact toughness of grinding ball could be improved remarkably and thus obvious effect can be obtained.