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Angang Steel Company Limited

Zhiwen Zhang

Yue Hua Zhang

Xiaofeng Wang

Zhen Li

Zhigang Zhao

Yang Lin

Yong Ma

Wenzhong Wang

Fuping Tang

Xiaoshan Wang

Meng Guo

Peng Fei

Guoqiang Xin

Jinsong Meng

Weizhi Yao

Yue Zhang

A method for preparing low-cost clean steel includes steps of: preliminarily desulfurizing iron melt: preliminarily desulfurizing in an iron melt channel during blast furnace tapping and during iron folding in an iron folding room, adding a desulfurizing ball into the iron melt during the blast furnace tapping or the iron folding; dephosphorizing and controlling sulfur: dephosphorizing and controlling sulfur during converter steelmaking, in such a manner that P&#x2266;0.014% and S&#x2266;0.004% during tapping; rapidly dephosphorizing by slag-forming: rapidly dephosphorizing by slag-forming during converter tapping, at a converter end point, controlling a C content at 0.02&#x2dc;0.10%, adding a dephosphorizing ball through an alloy chute during the converter tapping, blowing argon and stirring at the same time; purifying steel melt during RH refining: adding a purifying ball at a late stage of the RH refining when a vacuum degree is at 66.7&#x2dc;500 Pa; and continuously casting with whole-process protection.

Method for preparing low-cost clean steel

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Anshan, China

Zhiwen Zhang