Inclusion coagulation and removal rate in molten steel

SHU Zhi-hao; CHENG Shu-sen; ZHAO Jing-jing; CHENG Zi-jian

doi:10.13374/j.issn1001-053x.2009.s1.013

Volume 31 Issue S1

Aug. 2021

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SHU Zhi-hao, CHENG Shu-sen, ZHAO Jing-jing, CHENG Zi-jian. Inclusion coagulation and removal rate in molten steel[J]. Chinese Journal of Engineering, 2009, 31(S1): 118-120. doi: 10.13374/j.issn1001-053x.2009.s1.013

Citation:

SHU Zhi-hao, CHENG Shu-sen, ZHAO Jing-jing, CHENG Zi-jian. Inclusion coagulation and removal rate in molten steel[J]. Chinese Journal of Engineering, 2009, 31(S1): 118-120. doi: 10.13374/j.issn1001-053x.2009.s1.013

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Inclusion coagulation and removal rate in molten steel

doi: 10.13374/j.issn1001-053x.2009.s1.013

1. School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing 100083, China;
2. Jiuquan Iron & Steel Group, Jiuquan 735100, China

Received Date: 2009-07-03
Available Online: 2021-08-09

Abstract

Abstract

According to the operating parameters of Jiuquan Iron & Steel Group, the factors, which affect the collision of inclusions and removal rate by coagulation, have been studied through the theoretical analysis and calculation. Increasing stirring energy and temperature of liquid steel is helpful for coagulation between inclusions. In the process of coagulation between inclusions, turbulent collision plays a main role. Inclusion removal by collision is suitable for inclusions having a radius of 1 to 13 μm, whose removal rates are 41.2%-87.8%.
- ladle refining,
- inclusion,
- coagulation