LF精炼过程钢中显微夹杂物及工艺优化  

Research on Micro-inclusion In Molten Steel In LF Refining Process And Technology Optimization

作　　者：于恒[1] 刘占玲[2] 王硕明[1] 

机构地区：[1]河北联合大学冶金与能源学院 [2]河北宣化钢铁公司

出　　处：《河北理工大学学报（自然科学版）》2011年第2期44-47,共4页Journal of Hebei Polytechnic University:Social Science Edition

摘　　要：通过对某钢厂LF精炼过程中氧氮含量变化以及显微夹杂物类型、数量和粒径的分析,对现有LF精炼工艺进行优化。提出白渣冶炼采用CaO-SiO2-Al2O3-MgO-CaF2渣系,LF精炼末期弱氩气软吹,以促使粒径<10μm夹杂上浮。Through the analysis on the content variation of oxygen and nitrogen,and the type,amount and grain size of micro-inclusion in LF refining process.,the research optimize the existing LF refining process.It puts forward a proposal that adopt CaO-SiO2-Al2O3-MgO-CaF2 slag system to smelt,and weak argon stir at the end of LF refining,by way of spur the inclusion rising that the grain size 10μm.

关 键 词：LF精炼 显微夹杂物 工艺优化 

分 类 号：TF733.4[冶金工程—钢铁冶金]