提高方坯合格率的生产实践  

Practice of improving bloom quality

作　　者：潘艳华[1] 王光进[1] 洪军[1] 郭中波[1] 陈刚[1] 刘小卿[1] 

机构地区：[1]武钢第一炼钢厂,武汉430083

出　　处：《连铸》2007年第6期13-15,共3页Continuous Casting

摘　　要：由于铸坯弯曲、划痕等缺陷较为严重,导致部分铸坯降级外卖或判废,针对这些问题认真分析了二冷水、喷嘴堵塞、足辊积渣以及切割毛刺等因素,通过技术改进及严格管理,大大提高了铸坯表面质量和合格率。Curving,flaw and scratching are often the three causes for strand to be judged as rejected. Problems in casting operation such as spray nozzle clogging in secondary cooling zone, slag deposit at foot roll and burrs in cutting operation were usually the main reasons to cause bloom defects. After those problems were overcome, bloom quality was improved remarkably.

关 键 词：大方坯质量 铸坯弯曲 表面凹陷和划痕 

分 类 号：TF777.2[冶金工程—钢铁冶金]