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Mathematical Model of RH Blow Argon Mode Affecting: Decarburization Rate in Ultra-Low Carbon Steel Refining

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Abstract

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 2 100 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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Authors and Affiliations

  1. Beijing Beiye Functional Materials Corporation, Beijing, 100192, China

    Chong-wei Li (Doctor)

  2. School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing, 100083, China

    Guo-guang Cheng & Xin-hua Wang

  3. Shougang Qian’an Iron and Steel Co Ltd, Qian’an, Hebei, 064400, China

    Guo-sen Zhu & Ai-min Cui

Authors
  1. Chong-wei Li
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  2. Guo-guang Cheng
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  3. Xin-hua Wang
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  4. Guo-sen Zhu
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  5. Ai-min Cui
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Corresponding author

Correspondence to Chong-wei Li.

Additional information

Foundation Item: Item Sponsored by National Key Technology Research and Development Program in 11th Five-Year Plan of China (2006BAE03A13)

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Li, Cw., Cheng, Gg., Wang, Xh. et al. Mathematical Model of RH Blow Argon Mode Affecting: Decarburization Rate in Ultra-Low Carbon Steel Refining. J. Iron Steel Res. Int. 19, 23–28 (2012). https://doi.org/10.1016/S1006-706X(12)60095-8

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  • DOI: https://doi.org/10.1016/S1006-706X(12)60095-8

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