连铸方坯表面裂纹的控制研究  

Control Research of Crack on the Surface of Continuous Casting Billet

作　　者：齐新霞[1] 黄重[1] 

机构地区：[1]安阳钢铁集团有限责任公司,455004

出　　处：《金属制品》2005年第5期37-38,共2页Metal Products

摘　　要：对30MnSi连铸方坯表面横裂纹产生的原因进行了分析.提出工艺优化措施:采用转炉炼钢,连铸拉速控制在较高水平,结晶器水量增加到106～120 m3/h,并对其结构进行改进,生产出无缺陷铸坯,使30MnSi盘条的正品率由87.74%提高到99.59%.To analyze the cause for horizontal crack on the surface of 30MnSi continuous casting billet. Optimized process measures are put forward：steel-making uses BOF, drawing speed of continuous casting is controlled at higher lever, water flux of crystal unit is increased to 106 - 120 m^3/h and its structure is improved in order to produce non-defect casting billet. Quality goods rate of 30MnSi wire rod increases from 87.74% to 99.59%.

关 键 词：连铸方坯 横裂纹 工艺优化 

分 类 号：TF777.2[冶金工程—钢铁冶金] U414.18[交通运输工程—道路与铁道工程]