连铸宽板坯表面纵裂纹的成因及预防措施  

Causes and countermeasures for surface longitudinal cracking of wide slabs

作　　者：侯葵[1] 马立军[1] 邓志勇[1] 

机构地区：[1]天津钢铁有限公司炼钢厂,天津300301

出　　处：《连铸》2008年第4期25-29,共5页Continuous Casting

摘　　要：对天津钢铁有限公司4号板坯连铸机出现的表面裂纹进行了分析,总结了中厚板产生表面纵裂的主要原因。对于如何预防表面裂纹的形成,从改善冶金工艺和优化连铸工艺参数等方面提出相应的预防措施。The causes of surface longitudinal cracking of wide slabs at Tianjin Iron and Steel Co. were analyzed. Some countermeasures were also put forward to optimize continuous casting process and prevent surface cracking.

关 键 词：连铸机 板坯连铸 表面纵裂纹 

分 类 号：TF777.1[冶金工程—钢铁冶金]