Cr12Mo1V1钢滚丝轮断裂原因分析  

Cause for Breaking of Cr12Mo1V1 Steel Thread Rolling Roller

作　　者：王小炜 王会强[1] 张淼[1] 刘艺梦 马天 马标 王艳山 马超 WANG Xiaowei;WANG Huiqiang;ZHANG Miao;LIU Yimeng;MA Tiao;MA Biao;WANG Yanshan;FENG Chao(College of Mechanical and Electrical Engineering,Hebei Agricultural University,Baoding 071000,Hebei China;Baoding DONGLI Machinery Co.,Ltd.,Baoding 071000,Hebei China;Bading Xinao Gas Co.,Ltd.,Baoding 071000,Hebei China)

机构地区：[1]河北农业大学机电工程学院,河北保定071000 [2]保定市东利机械制造股份有限公司,河北保定071000 [3]保定新奥燃气有限公司,河北保定071000

出　　处：《热处理》2024年第3期56-59,共4页Heat Treatment

基　　金：河北省重大成果转化项目(21287001Z)。

摘　　要：某公司Cr12Mo1V1钢滚丝轮在使用中断裂.为弄清滚丝轮断裂的原因,采用直读光谱仪、洛氏硬度计、金相显微镜和扫描电子显微镜等对其进行了化学成分分析、硬度测定、断口分析和金相检验.结果表明:滚丝轮存在较多非金属夹杂物和带状及网状碳化物,增大了脆性,导致其使用中在交变载荷的作用下断裂.Thread rolling roller of Cr12Mo1V1 steel broke in service in a company.In order to identify the reason why it broke,chemical composition analysis,hardness measurement,fracture test and metallographic examination were performed on the broken thread rolling roller by means of direct-reading spectrograph,Rockwell hardness tester,metallographic microscope and scanning electron microscope.The results showed that the thread rolling roller exhibited more nonmetallic inclusions,banded carbides and carbide network which rendered its brittleness larger,thus resulting in its breaking by the action of alternating load in service.

关 键 词：CR12MO1V1 钢 滚丝轮 交变载荷 断裂 

分 类 号：TG115[金属学及工艺—物理冶金]