本文系针对煤矸石粉碎机中锤头的工作状态,在生产条件下研制成功了一种多元合金球墨铸铁锤头。装机对比表明,该锤头的耐磨性能等指标已超过了高锰钢锤头。通过系统的试验,给出了铸造锤头用多元合金球墨铸铁的适宜的化学成分、机械性能和金相组织。该研究成果已投入生产,并不断扩大应用范围。 This article aims at the working condition of the hammer in the coal gangue mill and successfully developed a kind of multi-alloy ductile iron hammer under the production conditions. Comparison of installed capacity shows that the hammer wear resistance and other indicators have exceeded the high manganese steel hammer. Through systematic experiments, the suitable chemical composition, mechanical properties and microstructure of the multi-alloy ductile iron for casting hammerhead are given. The research results have been put into production, and continue to expand the scope of application.