Q345系热轧中板M形裂纹成因及对策分析  

Analysis of Causes and Countermeasures of Q345 M-Type Sliver

作　　者：张彬[1] 

机构地区：[1]太原钢铁集团有限公司第二炼钢厂,山西太原030003

出　　处：《连铸》2012年第4期36-39,共4页Continuous Casting

摘　　要：通过对热轧中板裂纹形貌的检验,确定了M形裂纹成因。经过对钢种特性的分析和现场跟踪,查找铸坯产生裂纹的原因,并采取相应措施,消除了Q345系钢种中板的M形裂纹缺陷。The cause for the M-type sliver were identified by inspecting the appearance of cracks. By analyzing char- acteristics of the steel grade and tracking the production on site, tile causes for the cracks of the slab were found out. And also corresponding measures were taken to eliminate the M-type sliver of Q345 steel.

关 键 词：M形裂纹 裂纹敏感 应力集中 

分 类 号：TG335.11[金属学及工艺—金属压力加工]