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| Research on Desulphurizing Process for SoftKilled Molten Steel |
XUE Zhengliang1,HU Zhigang2,YAN Xiaoping2,
YUAN Weike2,LIU Yue3,LIN Weiguo3 |
| 1. Key Laboratory for Ferrous Metallurgy and Resources Utilization of Ministry of Education, Wuhan University of Science and Technology, Wuhan 430081, Hubei, China;2. Handan Iron and Steel Co., Ltd., Handan 056015, Hebei, China;3. Wuhan Hongshan Refractory Mass Co., Ltd., Wuhan 430080, Hubei, China |
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Abstract The fast desulphurization process for the softkilled molten steel 16MnR with acidsoluble aluminum less than 0.005% was researched with steel plant practice.The results indicated that the softkilled molten steel can be quickly desulphurized with strong slag infiltration during LD tapping and strong stirring in ladle furnace refining. The desulphurization rate by slag infiltration during LD tapping was from 14.8% to 59.1%,with an average level of 35.7%. The rate of heats with S content less than 0.015% reached 77%. The sulphur content of all heats was from 0.006% to 0.016%,with an average of 0.011% after LF refining.
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Received: 01 January 1900
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2008, Vol. 43 
