摘要
通过对易切削钢SUM23HS热轧线材表面裂纹的金相、电镜分析，该裂纹由连铸过程保护渣卷渣所致．通过加强连铸工艺过程控制，能有效的避免该类缺陷的产生。
The surface crack of free cutting steel SUM23HS hot-rolled wire rod is analyzed by means of microscope and SEM. Slag entrapment of mould powder in CCM is the main cause of cracking. Such defects can be avoided by strength- ening control of continuous casting process.
出处
《南钢科技与管理》
2012年第3期18-19,27,共3页
NISCO Technology and Management
关键词
易切削钢
卷渣
裂纹
free-cutting steel
slag entrapment
crack
