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Effect of Final Electromagnetic Stirring on Flow, Solidification, and Solute Transport in Continuous Casting Bloom

  • Computational Modeling in Pyrometallurgy
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Abstract

The flow, solidification, and solute transport behaviors in the 380 × 280 mm2 bloom center under the effect of final electromagnetic stirring (F-EMS) were investigated using a mathematical model. The results of nail shooting tests and infrared carbon-sulfur analyses are in good agreement with the simulated solidification and carbon concentration results. When F-EMS was installed 13.6 m below the meniscus with a frequency of 8.0 Hz, the maximum tangential velocity at the solidification front increased from 0.013 m/s to 0.023 m/s, and the liquid fraction at the computational outlet decreased from 0.7827 to 0.7256 as the current intensity increased from 300 A to 600 A. For each 100 A increase in the current intensity, the temperature of the mushy steel in the bloom center decreased by an additional 2.4 K. When the current intensity was maintained between 300 A and 400 A, the negative segregation band in the newly solidified shell was eliminated, the uniformity of the carbon distribution around the bloom center was enhanced, and the centerline segregation was noticeably improved.

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Acknowledgements

The authors would like to express their gratitude for the financial support provided by the National Natural Science Foundation of China (51774217 and 52004191).

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Authors and Affiliations

  1. The State Key Laboratory of Refractories and Metallurgy, Wuhan University of Science and Technology, Wuhan, 430081, China

    Qing Fang, Hua Zhang, Jiahui Wang, Peng Zhao, Guoliang Wu & Hongwei Ni

  2. Key Laboratory for Ferrous Metallurgy and Resources Utilization of Ministry of Education, Wuhan University of Science and Technology, Wuhan, 430081, China

    Qing Fang, Hua Zhang, Jiahui Wang, Peng Zhao, Guoliang Wu & Hongwei Ni

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  1. Qing Fang
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  2. Hua Zhang
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Correspondence to Hua Zhang.

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Fang, Q., Zhang, H., Wang, J. et al. Effect of Final Electromagnetic Stirring on Flow, Solidification, and Solute Transport in Continuous Casting Bloom. JOM 73, 2698–2708 (2021). https://doi.org/10.1007/s11837-021-04796-7

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  • DOI: https://doi.org/10.1007/s11837-021-04796-7

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