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An Approach for Modelling Slag Infiltration and Heat Transfer in Continuous Casting Mold for High Mn–High Al Steel

College of Materials Science and Engineering, Chongqing University, Chongqing 400044, China
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Metals 2020, 10(1), 51; https://doi.org/10.3390/met10010051
Received: 22 November 2019 / Revised: 13 December 2019 / Accepted: 24 December 2019 / Published: 26 December 2019
(This article belongs to the Special Issue Mold and Tundish Metallurgy)
To clarify the characteristics of slag infiltration and heat transfer behaviors in the meniscus region during the casting of high Mn–high Al steel, a mathematical model of a continuous casting mold that couples fluid flow with heat transfer, and solidification is developed. The model is based on the change in slag composition and properties caused by the steel/slag reaction. The formation and evolution of the meniscus profile and slag films for different mold fluxes during mold oscillation are described. The results show that the rapid growth of the slag rim with a high Al2O3 content approaches and deforms the meniscus so that a series of casting problems such as slag infiltration blocking, large fluctuations in heat flux, and even meniscus breaking occur in the continuous casting process. Predictions are in good agreement with plant measurements. These findings provide an improved understanding of the complex phenomena occurring in the meniscus region and give new insights into the evaluation and optimization of mold flux properties for high Mn–high Al steel casting. View Full-Text
Keywords: high Mn–high Al steel; continuous casting mold; slag infiltration; heat transfer high Mn–high Al steel; continuous casting mold; slag infiltration; heat transfer
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Yang, J.; Chen, D.; Long, M.; Duan, H. An Approach for Modelling Slag Infiltration and Heat Transfer in Continuous Casting Mold for High Mn–High Al Steel. Metals 2020, 10, 51.

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