中国机械工程学会材料学会失效分析委员会于1985～1986年间,在江苏常熟市采石厂举行全国性高锰钢颚式破碎机齿板的评优比赛,我厂参加了这一活动。过去我厂高锰钢产品质量是较好的,受到用户的好评,在这次评比试验中,虽然磨损率达到了合格证书的要求,与标样相比降低了17.4％,但与优胜单位比差距还较大。为了进一步提高产品质量,特请清华 China Mechanical Engineering Society of Materials Failure Analysis Committee from 1985 to 1986, Changshu City, Jiangsu Province, held a quarry national high manganese steel jaw crusher tooth plate competitions, I plant participated in this activity. In the past I plant high manganese steel product quality is better, praised by users, in this evaluation test, although the wear rate reached the certificate requirements, compared with the standard sample decreased by 17.4%, but with the winning unit ratio The gap is still large. In order to further improve product quality, special please Tsinghua