| Mathematical Model of RH Blow Argon Mode Affecting： Decarburization Rate in Ultra-Low Carbon Steel Refining |
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| 作者姓名： | LI Chong-wei CHENG Guo-guang WANG Xin-hua ZHU Guo-sen CUI Ai-min |
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| 作者单位： | [1]Beijing Beiye Functional Materials Corporation, Beijing 100192, China [2]School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing 100083, China [3]Shougang Qian＇an Iron and Steel Co Ltd, Qian＇an 064400, Hebei, China |
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| 基金项目： | Foundation Item：Item Sponsored by National Key Technology Research and Development Program in 11th Five-Year Plan of China （2006BAE03A13） |
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| 摘 要： | A mathematical model in present study has been established to investigate the effect of Rheinstahl Heraeus (RH) blow argon mode on the decarburization rate in ultra-low carbon steel refining based on the RH equipment of Shougang Qian′an Iron and Steel Co Ltd (SQISCO). The calculated results show that the increase of argon flowrate promotes the carbon elimination from argon gas bubble surface, molten steel free surface in vacuum as well as splash droplet surface, while reduces that from the interior of liquid steel. It has been found the critical turning point of flowrate ascension is at the 5th minute and the optimum blow argon flowrate in later stage is 2100 L/min in accordance with the 2 stages argon blow mode, which have been confirmed in the commercial production in SQISCO.
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| 关 键 词： | 钢铁冶炼 数学模型 超低碳钢 吹氩 脱碳 RH 自由表面 气流量 |
| 收稿时间： | 28 March 2011 |
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