微合金钢板坯二冷配水模型的应用和评价  

A REVIEW OF APPLICATION OF DYNAMIC SECONDARY COOLING MODEL FOR MICROALLOYED SLAB

作　　者：段贵生[1] 方善超[1] 石成刚[1] 张永鑫[1] 

机构地区：[1]安阳钢铁集团公司

出　　处：《钢铁研究》2003年第4期17-19,共3页Research on Iron and Steel

摘　　要：结合两种二冷水冷模型 ,对微合金钢铸坯的微观组织、高温延塑性能、应力分析、鼓肚变形以及二冷水模型模拟、铸坯表面温度实测等进行了系统的研究。研究表明 ,铸坯表面温度落入钢的第三次脆性温度区是造成铸坯表面横裂的一个重要原因。This paper introduces a detailed study on microalloyed slab with respect to microstructure,high temperature ductility,strain and stress analysis,bulging deformation as well as secondary cooling model simulation,actual measurements of slab surface temperature on the basis of two different secondary cooling patterns.The research results showed that the slab surface temperature dropping into the third brittle zone played an important role in causing transverse crack formation of microalloyed slab.Effective measures to improve slab quality,both internal and surface,are given in this paper.

关 键 词：微合金钢 板坯连铸 二冷模型 表面横裂 内部缺陷 

分 类 号：TF777.1[冶金工程—钢铁冶金]