摘要
从410不锈钢表面纵裂形成的机理出发,通过采取优化钢水成分、调整结晶器水流量、优化保护渣理化性能和拉速等工艺措施,410不锈钢小方坯表面纵裂得到了有效的控制,且基本上杜绝了漏钢等生产事故的发生。铸坯的表面质量得到了大幅度的提升,铸坯表面纵裂发生率由11.24%降为2.18%,铸坯的修磨率降低了3.4%。
To control longitudinal surface crack of 410 stainless steel billet,a few meas- ures were employed such as composition optimization of molten steel, water flow rate adjustment of mould, chemical and physical properties improvement of mold powder and casting speed optimization, which was following the formation mechanism of surface lon- gitudinal cracks of 410 stainless steel. As a result, the longitudinal surface cracks of 410 stainless steel was effectively controlled, production accidents as breakout were mainly avoided. Surface quality of slab was greatly enhanced, the surface longitudinal cracks in slab was decreased from 11.24 % to 2. 18 %, the recondition rate of casting slab was re- duced by 3.4 %.
出处
《炼钢》
CAS
北大核心
2015年第2期21-25,共5页
Steelmaking
关键词
表面纵裂
亚包晶钢
结晶器
热流密度
surface longitudinal cracks
hypo-peritectic steel
mould
heat flux density
