冷轧用SPHC钢硅含量影响因素分析  

Influencing Factors on Si Content of SPHC Steel

作　　者：李军明[1,2] 杨晓江[2,3] 王书桓[1] 张大勇[2] 

机构地区：[1]河北理工大学研究生学院,河北唐山063009 [2]唐山钢铁股份有限公司,河北唐山063016 [3]钢铁研究总院连铸技术国家工程研究中心,北京100081

出　　处：《钢铁》2010年第7期33-35,40,共4页Iron and Steel

摘　　要：对LF精炼脱硫过程中回硅反应进行了热力学分析,以唐钢生产冷轧用SPHC钢为例,以实际生产数据为依据分析了影响冷轧用SPHC钢中硅含量的因素,通过降低原料中SiO2含量、减少转炉下渣、减少连铸热态浇余回收量、控制精炼后期底吹氩气强度等措施的实施,降低硅含量的效果显著。Silicon pick-up reaction was analyzed based on the thermodynamic theory during desulfuration in LF treatment of SPHC steel.The main factors influencing silicon content,in Tangshan Iron and Steel Company,were analyzed through the following measures to control silicon,such as usage of the low SiO2 material,reducing amount of the ladle slag,reducing amount of hot steelmaking slag re-utilization in ladle furnace,controlling bottom Ar-blowing stirring intensity at the end of refining period.The good results of low silicon content have been achieved.

关 键 词：SIO2 增硅 SPHC钢 

分 类 号：TF703.8[冶金工程—钢铁冶金]