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Development of Ultra-Low Oxygen Automobile Gear Steel

Journal of Iron and Steel Research International 2011年第S2期18卷 406-410页

作者： CHEN Tian-ming1, YANG Su-bo1, ZHAO Ke-wen1,2, WANG Xin-hua2, ZENG Jian-hua1, CHEN Yong1, CHEN Liang1, PAN Hong1 (1. PanGang Group Research Institute Co., Ltd., Chengdu 611731, Sichuan, China 2. Metallurgy and Ecological Engineering School, University of Science and Technology Beijing, Beijing 100083, China) PanGang Grp Res Inst Co Ltd Chengdu 611731 Sichuan Peoples R China Univ Sci & Technol Beijing Met & Ecol Engn Sch Beijing 100083 Peoples R China

In view of process conditions of Vanadium Recovery and Steelmaking Plant, PanGang Group Panzhihua steel and Vanadium Co.,Ltd., and on the basis of making choice of a reasonable deoxidization process, some measures have been taken to the development of automobile gear steel (20CrMoH) such as the pre-refining technology during converter tapping, "white slag" refining in LF, RH Vacuum treatment, and even protective casting technology. Also different and suitable models of argon blowing from bottom of ladle were adopted in the platform after converter, LF refining and calcium treatment. Test results show that the high cleanness 20CrMoH gear steel slab with T[O] ≤15×10-6(The average T[O] is 11.8×10-6) could be obtained through all these measures.

关键词： automobile gear steel converter bloom continuous casting deoxidizing composition of ladle slag

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Development of Ultra-Low Oxygen Automobile Gear Steel

Development of Ultra-Low Oxygen Automobile Gear Steel

引用

The 2nd International Symposium on Clean Steel(ISCS 2011)

作者： CHEN Tian-ming YANG Su-bo ZHAO Ke-wen WANG Xin-hua ZENG Jian-hua CHEN Yong CHEN Liang PAN Hong PanGang Group Research Institute Co. Ltd. Metallurgy and Ecological Engineering School University of Science and Technology Beijing

In view of process conditions of Vanadium Recovery and Steelmaking Plant,PanGang Group Panzhihua steel and Vanadium Co.,Ltd.,and on the basis of making choice of a reasonable deoxidization process,some measures have been taken to the development of automobile gear steel (20CrMoH) such as the pre-refining technology during converter tapping,"white slag" refining in LF,RH Vacuum treatment,and even protective casting *** different and suitable models of argon blowing from bottom of ladle were adopted in the platform after converter,LF refining and calcium *** results show that the high cleanness 20CrMoH gear steel slab with T[O] ≤15×10-6(The average T[O] is 11.8×10-6) could be obtained through all these measures.

关键词： automobile gear steel converter bloom continuous casting deoxidizing composition of ladle slag

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