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Water Modeling of Self-Braking Submerged Entry Nozzle Used for Steel Continuous Casting Mold

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Abstract

Slag entrainment in a continuous casting mold is one of the major causes of macro nonmetallic inclusions in continuous casting steel products. Stabilizing the level fluctuation is an important factor to improve steel quality. A new type of submerged entry nozzle (SEN) named self-braking SEN was designed. In the current study, water modeling experiments were performed to study the effect of self-braking SEN on level fluctuation in a continuous casting slab mold. The level position and the root mean square value of level fluctuation were analyzed through the online detection data. The results showed that the flow in the mold was more symmetrical and the tracer dispersion was more uniform. Moreover, the meniscus was also more uniform than the conventional nozzle with the self-braking SEN, especially at high casting speed.

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Acknowledgements

This research is supported by the High Quality Steel Consortium (HQSC) and the Laboratory of Green Process Metallurgy and Modeling (GPMM) at University of Science and Technology Beijing (USTB), China.

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Authors and Affiliations

  1. School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing (USTB), Beijing, 100083, China

    Lifeng Zhang

  2. Department of Materials Science and Engineering, Missouri University of Science & Technology, Rolla, MO, 65409, USA

    Yongfeng Chen, Lifeng Zhang, Shufeng Yang & Jingshe Li

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  1. Yongfeng Chen
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  2. Lifeng Zhang
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Correspondence to Lifeng Zhang.

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Chen, Y., Zhang, L., Yang, S. et al. Water Modeling of Self-Braking Submerged Entry Nozzle Used for Steel Continuous Casting Mold. JOM 64, 1080–1086 (2012). https://doi.org/10.1007/s11837-012-0416-z

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