Q195带钢复合脱氧工艺生产实践  

Production Practice of Combined Deoxidation Process of Strip Steel Q195

作　　者：鲁川 LU Chuan(Steel-making Plant 2#,Nanjing Iron & Steel Co., Ltd.)

机构地区：[1]南京钢铁股份有限公司第二炼钢厂

出　　处：《南钢科技与管理》2021年第1期12-15,共4页NISCO Technology and Management

摘　　要：介绍了第二炼钢厂Q195带钢不经过LF炉精炼,直接采用转炉出钢后至氩站微调成分和温度,在连铸浇钢过程中存在可浇性差的问题及解决方法。通过加强转炉冶炼的终点控制,采用复合脱氧方式,最终解决钢水的可浇性问题,降低废坯量,延长连拉炉数,满足钢水纯净度的要求。This paper introduced the problem of poor castability and solutions during continuous casting of strip steel Q195,with composition and temperature slightly adjusted at argon station directly after BOF tapping,instead of LF refining,at Steel-making Plant 2#.The castability is improved by strengthening the BOF endpoint control and applying the combined deoxidation method.Therefore,the waste bloom/billet is reduced,the heats of continuous casting is extended,with the purity of the liquid steel fulfilling the requirement.

关 键 词：Q195带钢 终点控制 复合脱氧 降低成本 

分 类 号：TF7[冶金工程—钢铁冶金]