精炼渣组分对硫易切削钢夹杂物含量和形态的影响

特殊钢 ›› 2016, Vol. 37 ›› Issue (1): 60-63.

精炼渣组分对硫易切削钢夹杂物含量和形态的影响

戴永刚^1,2

1邢台钢铁有限责任公司，邢台054027；
2河北省线材工程技术研究中心，邢台051027

出版日期:2016-02-01 发布日期:2022-08-25
作者简介:戴永刚(1976-),男，硕士(2009年北京科技大学)，高级工程师,1998年北京科技大学(本科)毕业，特殊钢品种开发。

Effect of Refining Slag Ingredient on Content and Morphology of Inclusions in Sulfur Free Cutting Steel

Dai Yonggang^1,2

1 Xingtai Iron and Steel Corp Ltd, Xingtai 054027 ；
2 Hebei Wire Rod Engineering Technology Research Center, Xingtai 054027

Published:2016-02-01 Online:2022-08-25

摘要/Abstract

摘要： 试验分析了50 t LF精炼渣(FeO)、(MnO),R,(CaO)/[(Al₂O₃)(SiO₂)]和(S)的控制对[O]指数、硫分配比和Mn/S的影响。结果表明,当(FeO+MnO)=12%,碱度R值1.5~2.0,(CaO)/[(Al₂O₃)(SiO₂)]=1.5~2.0,平均硫分配比LS为4.6,Mn/S值4.3~4.7时,铸态夹杂物为球形Ⅰ类硫化物和部分沿晶界分布的球形硫化物,轧制钢材未发现B、C类夹杂,达到了较好的控制钢中氧化物夹杂和低脱硫率的冶金效果。

关键词: 硫易切削钢, 精炼渣, FeO, , MnO, 夹杂物

Abstract: The effect of control of 50 t LF refining slag (FeO) , (MnO),/R,( CaO)/[(Al₂O₃) (SiO₂) ] and (S) on [0] index, sulfur partition ratio and Mn/S has been tested and analyzed. Results show that as (FeO + MnO)= 12% , basicity R 1.5 〜2.0, (CaO)/[ (A1₂O₃) (SiO₂) ] =1.5 ~2.0, average sulfur partition ratio £s 4.6, Mn/S =4.3 ~4.7, the as-cast inclusions in steel is spheroid I series sulfide and partial along grain-boundary distributed spheroid sulfide, and the B and C series inclusions do not found in rolled products to get better control of oxides inclusions in steel and metallurgy effect of low desulphurization ratio.

戴永刚. 精炼渣组分对硫易切削钢夹杂物含量和形态的影响[J]. 特殊钢, 2016, 37(1): 60-63.

Dai Yonggang. Effect of Refining Slag Ingredient on Content and Morphology of Inclusions in Sulfur Free Cutting Steel[J]. Special Steel, 2016, 37(1): 60-63.