碳素工具钢T12锉刀断裂原因分析及改进措施  

Analysis on Fracture Causes of Carbon Tool Steel T12 File and Improvement Measures

作　　者：刘涛[1] 吕瑞国[1] 喻建林 冷烨旻[1] Liu Tao;Lyu Ruiguo;Yu Jianlin;Leng Yemin(Xinsteel Iron ＆ Steel Group Co.,Ltd.Xinyu 338001 Jiangxi,China)

机构地区：[1]新余钢铁集团有限公司,江西新余338001

出　　处：《江西冶金》2018年第3期28-31,共4页Jiangxi Metallurgy

摘　　要：对碳素工具钢T12锉刀断裂的试样进行化学成分、金相组织、断口形貌等分析,结果表明:锉刀断裂主要是由于锉齿加工质量存在缺陷,淬火、回火工艺选择不合理,基体组织存在网状碳化物造成的。通过优化加工工艺,选择合理的热处理工艺参数,有效防止了锉刀断裂现象的发生。Chemical composition,microstructure and fracture morphology are analyzed for the carbon tool steel T12 file fracture sample. The results show that the fracture is mainly due to the file tooth processing quality defects,quenching,tempering process selection is not reasonable,meshy carbide on the matrix organization. By optimizing the processing technology and selecting reasonable heat treatment process parameters,the file fracture is effectively avoided.

关 键 词：T12 锉刀断裂 热处理工艺 

分 类 号：TG142.45[一般工业技术—材料科学与工程]