大方坯角部“冷疤”和面部渣沟缺陷成因分析

Analysis on Formation Cause of "Cold Scar" and Surface Faults of Blooms

文章重点对出现在包钢炼钢厂大方坯表面的“冷疤”和渣沟缺陷的形成机理进行了分析,结果表明大方坯的“冷疤”缺陷和渣沟缺陷形成于结晶器,与渣圈的状况有密切关系。消除这两种缺陷的关键在于保证结晶器设备状况和使用较为合适的保护渣。

In this paper,the formation reasons of cold scare and surface faults of blooms in the Steel - making Plant are anal- ysed. The conclusion shows that the faults formed in the mold, and were related with slag circle closely. So the key to eliminate these faults is to make the mold fine and use proper casting powder.