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Regimes of Micro-bubble Formation Using Gas Injection into Ladle Shroud

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Abstract

Gas injection into a ladle shroud is a practical approach to produce micro-bubbles in tundishes, to promote inclusion removal from liquid steel. A semi-empirical model was established to characterize the bubble formation considering the effect of shearing action combined with the non-fully bubble break-up by turbulence. The model shows a good accuracy in predicting the size of bubbles formed in complex flow within the ladle shroud.

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The authors would like to appreciate Professor Roderick I.L. Guthrie and Dr. Mihaiela Isac, for providing all the research facilities in McGill Metals Processing Centre. We also acknowledge the financial support from NESRC and Nippon Steel & Sumitomo Metal Cooperation, for this work.

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Authors and Affiliations

  1. School of Metallurgy, Northeastern University, Shenyang, 110819, Liaoning, P.R. China

    Sheng Chang & Zongshu Zou

  2. McGill Metals Processing Centre, McGill University, Montreal, QC, H3A 2B2, Canada

    Sheng Chang & Xiangkun Cao

  3. Sibley School of Mechanical and Aerospace Engineering, Cornell University, Ithaca, NY, 14853, USA

    Xiangkun Cao

Authors
  1. Sheng Chang
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  2. Xiangkun Cao
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  3. Zongshu Zou
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Correspondence to Sheng Chang.

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Manuscript submitted July 31, 2017.

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Chang, S., Cao, X. & Zou, Z. Regimes of Micro-bubble Formation Using Gas Injection into Ladle Shroud. Metall Mater Trans B 49, 953–957 (2018). https://doi.org/10.1007/s11663-018-1231-x

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  • DOI: https://doi.org/10.1007/s11663-018-1231-x

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