Viscosities of LF slags and their impact on ladle refining

被引:59
作者
Jonsson, PG
Jonsson, L
Sichen, D
机构
[1] KTH,DEPT THEORET MET,S-10044 STOCKHOLM,SWEDEN
[2] MEFOS MET RES PLANT,S-97125 LULEA,SWEDEN
关键词
viscosity; slag; ladle refining; CaO-SiO2-Al2O3-MgO system; modeling; steel;
D O I
10.2355/isijinternational.37.484
中图分类号
TF [冶金工业];
学科分类号
0806 ;
摘要
This study focuses on the viscosities of synthetic slags used in secondary refining operations. Typically, these slags contain mainly CaO, Al2O3, MgO and SiO2. The data for LF slag viscosities are used in a model for a gas-stirred ladle to evaluate the effect of viscosity variations on predicted parameters close to the slag/steel interface. The results show that viscosities of LF slags significantly affect ladle refining operations. It is therefore necessary to control the composition of the synthetic slags carefully during production.
引用
收藏
页码:484 / 491
页数:8
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