Q235B钢带纵裂缺陷分析  

Analysis on Longitudinal Crack Defect of Q235B Steel Belt

作　　者：胡所军 刘广涛 尚秀廷[1] 穆鹏 杜岳明 Hu Suo-jun;Liu Guang-tao;Shang Xiu-ting;Mu Peng;Du Yue-ming(Manufacturing Dept.of Inner Mongolia Baotou Steel Union Co.,Ltd.,Baotou 014010,Inner Mongolia Autonomous Region,China)

机构地区：[1]内蒙古包钢钢联股份有限公司制造部,内蒙古包头014010

出　　处：《包钢科技》2023年第6期13-15,共3页Science & Technology of Baotou Steel

摘　　要：纵裂缺陷是薄板厂CSP生产线生产Q235B钢带的主要缺陷。通过对热轧钢带纵裂缺陷的产生原因进行分析,结合CSP生产线实际情况,对产生纵裂的工艺控制点进行相关性分析,总结归纳出恢复相关设备精度、合理使用保护渣、提高结晶器进出水温差等措施,有效的降低了Q235B钢带纵裂缺陷率,提高了热轧钢带的合格率。The longitudinal crack is the main defect of Q235B steel belt manufactured by CSP production line of CSP Plant.Such measures as restore the accuracy of associated equipment,reasonably use casting powder as well as improve temperature difference of water inlet and outlet for crystallizer are summarized through the correlation analysis of process control points causing longitudinal crack by analyzing the causes of longitudinal crack for hot rolled steel belt combining with the actual situation of CSP production line.As a result,the longitudinal crack defect rate of Q235B steel belt is effectively reduced and qualified rate of hot rolled steel belt is improved.

关 键 词：CSP 纵裂 进出水温差 

分 类 号：TF777.7[冶金工程—钢铁冶金]