真空下钢液脱氮工艺研究  

PROCESS OF VACUUM DENITROGENATION OF STEEL

作　　者：成国光[1] 赵沛[1] 徐学禄 吴洁 王林英[1] 

机构地区：[1]北京科技大学

出　　处：《钢铁》1999年第1期16-19,共4页Iron and Steel

摘　　要：在４０ｋｇ真空感应炉上进行了真空下钢液脱氮工艺的实验研究。实验考察了真空下碳氧反应工艺、表面活性元素控制和脱氮渣系等因素对钢液脱氮动力学的影响。研究结果表明：（１）真空下强烈的碳氧反应能有效地脱除钢中的氮；（２）当钢中硫含量较低时，脱氮速率很快，随着硫含量的逐步增加，脱氮速率相应降低；（３）５０％ＳｉＯ２－４０％Ｂ２Ｏ３－１０％ＴｉＯ２渣系有明显的脱氮效果。The kinetics experiments for steel denitrogenation in vacuum degasser have been carried out with 40 kg vacuum induction furnace and such processes as vacuum carbon oxygen reaction,surface active element control and molten slag are studied respectively.It is confirmed from the experimental results that:(1) vigorous carbon oxygen reaction under vacuum can remove nitrogen in steel bath effectively;(2) the rate of nitrogen desorption decreases with the increase of surface active element sulphur content;(3) the denitrogenation with 50 %SiO 2 40 %B 2O 3 10 %TiO 2 molten slag is better than the others.

关 键 词：脱氮 化学反应 熔渣 真空 工艺研究 炼钢 

分 类 号：TF769.4[冶金工程—钢铁冶金]