100tLF——VD精炼炉工艺实践  

PRACTICE ON 100 t LF-VD FURNACE

作　　者：虞明全[1] 

机构地区：[1]宝钢集团上海五钢有限公司

出　　处：《钢铁》2001年第3期18-20,11,共4页Iron and Steel

摘　　要：概述 10 0 t国产 L F— VD精炼炉热调试和试生产的工艺及其冶金效果 ,包括供电制度、升温和降温特点、供氩制度、真空脱气制度、钢包耐火材料的选择及其使用。经 30 m in的精炼 ,L F的脱硫率达 5 0 % ;L F的脱氧主要由钢中铝含量决定。经 L F— VD精炼 ,钢中硫含量均在 0 .0 10 %以下 ;高碳钢的氧含量在 10×10 - 6 以下 ;钢中氢含量最低达 0 .5× 10 - 6 ;真空脱氮率在 2 5The practice on 100 t ladle furnace and 100 t vacuum degassing furnace made in China and effect on metallurgical quality of steels are described in this paper,which include the features of power supply,temperature control,argon stirring,vacuum degassing and choice of refractory materials for 100 t ladle.The desulphurization rate reaches 50 % on LF in 30 minutes.The deoxidization effect is mainly determined by residual aluminum content in liquid steel.The sulphur content in liquid steel is not more than 0 010 % and oxygen content in high carbon steel is below 10×10 -6 after LF VD refining.The hydrogen content in steel can be reduced to 0.5×10 -6 and the denitrogenization rate is about 25 % by VD refining.

关 键 词：脱硫 脱氧 脱氢 炼钢 LF-VD精炼炉 

分 类 号：TF769.2[冶金工程—钢铁冶金]