结晶器保护渣性能对12Mn2VB钢连铸坯表面质量的影响  

Effects of mold powder property on 12Mn2VB steel bloom surface quality

作　　者：谢文新 阮小江 张国伟 张广军 

机构地区：[1]江阴兴澄钢铁有限公司,江阴214429

出　　处：《连铸》2008年第2期24-26,44,共4页Continuous Casting

摘　　要：针对12Mn2VB钢的铸坯表面缺陷,从缺陷特征形成、钢质特性和保护渣性能对连铸坯壳生长影响等方面进行了分析研究,找出了原保护渣存在的问题,试验选择了改进型保护渣,明显改善了12Mn2VB钢铸坯和轧材的表面质量,取得了良好效果。To deal with the defects on the surface of 12Mn2VB steel bloom, investigations on strand shell growing were carried out in defect features, mold powder property and steel grade. The disadvantages of the previous mold powder were analyzed. A new type of mold powder was tested and applied for the bloom casting at Xingcheng Steel. It made the bloom surface quality improved greatly.

关 键 词：保护渣性能 12Mn2VB钢 铸坯 表面缺陷 

分 类 号：TF777.2[冶金工程—钢铁冶金]