含钒钢水SPHC精炼生产实践  

PRODUCTION OF SPHC REFINING OF VANADIUM-BEARING MOLTEN STEEL

作　　者：安贵明[1] 宋慧强 赵英利 

机构地区：[1]河北钢铁集团承钢公司,河北承德067002 [2]河北钢铁技术研究总院,河北石家庄050022

出　　处：《河北冶金》2012年第4期39-42,共4页Hebei Metallurgy

摘　　要：针对承钢含钒钢水SPHC试制初期出现的成渣晚、造白渣困难、增碳回硅及钢水浇铸困难等问题分析了原因,通过优化渣料、转炉及LF炉工艺,实施早化渣、早成渣、保持白渣时间,保证弱吹氩时间,精确控制处理周期的生产组织模式,SPHC精炼工艺获到了平均脱硫率64.5%、铸坯T[O]28.5×10-6、钢水可浇性100%的良好冶金效果。It is analyzed the reasons for the problems： late slag forming,difficult to form white slag,carbon increasing and resiliconization,and difficulty to cast molten steel,which present at the beginning of trial production of SPHC refining of vanadium-bearing molten steel,.With measures adopted： optimizing slag material,process of converter and LF furnace,conducting early slaging,early forming slag,keep white slag time,guaranteeing weak-argon-blowing time,and with production organization mode to precisely control treating period,the above problems got solved.And with SPHC refining process a good metallurgical effect got： average desulfurization ratio to 64.5 %,T[O] of casting billet being 28.5×10-6,castability of molten steel reaching 100%.

关 键 词：含钒钢水 SPHC 钢水可浇性 优化 

分 类 号：TF769.2[冶金工程—钢铁冶金]