Effect of CaF2-MgF2 on the Removal of Al2O3 Inclusions in Steel

Peng Chengsong; Zhou Defu; Wang Jianjun; Chang Lizhong; Wang Kaizhong; Sun Wei

doi:10.7513/j.issn.1004-7638.2017.01.022

Volume 38 Issue 1

Feb. 2017

Turn off MathJax

Article Contents

Article Navigation > IRON STEEL VANADIUM TITANIUM > 2017 > 38(1): 123-131

Peng Chengsong, Zhou Defu, Wang Jianjun, Chang Lizhong, Wang Kaizhong, Sun Wei. Effect of CaF2-MgF2 on the Removal of Al2O3 Inclusions in Steel[J]. IRON STEEL VANADIUM TITANIUM, 2017, 38(1): 123-131. doi: 10.7513/j.issn.1004-7638.2017.01.022

Citation:

Peng Chengsong, Zhou Defu, Wang Jianjun, Chang Lizhong, Wang Kaizhong, Sun Wei. Effect of CaF₂-MgF₂ on the Removal of Al₂O₃ Inclusions in Steel[J]. IRON STEEL VANADIUM TITANIUM, 2017, 38(1): 123-131. doi: 10.7513/j.issn.1004-7638.2017.01.022

Citation:

PDF( 4161 KB)

Effect of CaF₂-MgF₂ on the Removal of Al₂O₃ Inclusions in Steel

doi: 10.7513/j.issn.1004-7638.2017.01.022

1. School of Metallurgical Engineering, Anhui University of Technology, Ma' anshan 243032, Anhui, China;
2. Technology Center, Ma' anshan Iron and Steel Co., Ltd., Ma' anshan 243000, Anhui, China

Received Date: 2016-07-30

Abstract

Abstract

Different amounts of CaF₂,MgF₂,Na₃AlF₆,mixture of CaF₂ and Mg F₂ were added into the liquid steel for Al₂O₃ inclusions modification. The results show that total oxygen content of the treated steel obviously decreases,but the amount of addition needed shall be in a suitable range. adding 1.0% of mixture of CaF₂ and MgF₂ can achieve the best modification result. In addition,the inclusions in the steel treated by the modified agent present a composite layer shape of Mn S wrapped Al₂O₃,which is more beneficial to the removal of inclusions,and Mn S is a plastic inclusion,which can reduce the negative effect of Al₂O₃ inclusions in steel.
- steel,
- inclusion,
- modifier,
- CaF₂,
- MgF₂