Study on process of ultra-low sulfur steel
- 作者：LIU JingangHAO NingLI ZhanjunJIANG ZhonghangWANG WenjunZHU Zhiyuan
- 会议时间：2013-06-01
- 关键词：ultra-low sulfur ; ladle powder injection ; LF refining ; process routes
- 作者单位：LIU Jingang,HAO Ning,LI Zhanjun,JIANG Zhonghang,WANG Wenjun(Shougang Research Institute of Technical,Beijing 100043,China)ZHU Zhiyuan(Shouqin Metal Material Company Ltd.,Qinhuangdao 066326,Hebei,China)
- 母体文献：第五届宝钢学术年会论文集
- 会议名称：第五届宝钢学术年会
- 会议地点：上海
- 主办单位：中国金属学会
- 语种：chi
摘要
This paper study on two process routes of ultra-low sulphur steel,"Hot metal desulphurization-Basic oxygen furnace-Ladle powder injection-LF refining" and " Hot metal desulphurization-Basic oxygen furnace-LF refining",that conclude the first route can achieve the fast production of ultra-low sulfur steel,Ladle powder injection cycle less than 19min,LF refining desulfurization cycle is less than 30min;The second route must strengthen sulfur content control before LF refining and must ensure a sufficiently long period,can make the sulfur content requirements that the sulphur content control below 0.008% before LF refining and refining cycle more than 40min,the control of sulfur content of less than 0.0010% can meet the requirements of the product by the two process routes.