电炉—连铸生产低氮钢的实践  

Practice on Production of Low Nitrogen Steel by EAF—LF—VD—CC Process

作　　者：孙勇[1] 

机构地区：[1]宝山钢铁股份公司炼钢厂,上海201900

出　　处：《炼钢》2005年第3期23-25,共3页Steelmaking

摘　　要：介绍了宝钢电炉流程在生产低氮钢方面采取的主要技术措施。包括电炉提高铁水比、造泡沫渣、终点碳控制、EBT;LF气氛控制、造好白渣、埋弧操作;VD提高脱氮率,钢液成分对脱氮的影响;连铸钢包长水口及氩封防止钢液吸氮。The present paper introduces the main technological measures to produce low nitrogen steel in EAF in Baosteel including higher hot metal ratio,slag foaming,an end-point carbon control and application of EBT process in EAF;atmosphere control,formation of good white slag and suberged arc operation in LF;increase in nitrogen degassing rate and effects of Liquid steel compositons on nitrogen degassing in VD;and adoption of long ceramic nozzle and argon sealing between ladle and tundish to prevent against nitrogen pick-up in continuously casting.

关 键 词：钢液 脱氮 电炉流程 

分 类 号：TF762[冶金工程—钢铁冶金]