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Article

Comparison of the Flow Field in a Slab Continuous Casting Mold between the Thicknesses of 180 mm and 250 mm by High Temperature Quantitative Measurement and Numerical Simulation

1
State Key Laboratory of Advanced Special Steel, School of Material Science and Engineering, Shanghai University, Shanghai 200444, China
2
Shougang Qiangang Iron and Steel Co., Ltd., Tangshan 064402, China
*
Author to whom correspondence should be addressed.
Academic Editor: Richard Thackray
Metals 2021, 11(12), 1886; https://doi.org/10.3390/met11121886
Received: 18 October 2021 / Revised: 9 November 2021 / Accepted: 17 November 2021 / Published: 23 November 2021
(This article belongs to the Special Issue Advances in the Continuous Casting of Steel)
In the present work, the flow field in a slab continuous casting mold with thicknesses of 180 and 250 mm are compared using high temperature quantitative measurement and numerical simulation. The results of the numerical simulation are in agreement with those of the high temperature quantitative measurement, which verifies the accuracy and reliability of the numerical simulation. Under the same working conditions, the velocities near the mold surface with the thickness of 180 mm were slightly higher than those of the mold with the thickness of 250 mm. The flow pattern in the 180 mm thick mold maintains DRF more easily than that in 250 mm thick mold. The kinetic energy of the jet dissipates faster in the 250 mm thick mold than in the 180 mm mold. For double-roll flow (DRF), as the argon gas bubbles can be flushed into the deeper region under the influence of strong jets on both sides, the argon bubbles distribute widely in the mold. For single-roll flow (SRF), as the argon bubbles float up quickly after leaving the side holes, the bubble distribution is more concentrated in the width direction, which may cause violent interface fluctuation and slag entrainment. The fluctuation at the steel-slag interface in the mold with 180 mm thickness is greater than that in the mold with 250 mm thickness but less than 5 mm. The increase of mold thickness may lead to a decrease of the symmetry of the flow field in the thickness direction and uniformity of mold powder layer thickness. In summary, the steel throughput should be increased in the 250 mm thick mold compared with that in the 180 mm thick mold. View Full-Text
Keywords: flow field; mold thickness; rod deflection method; numerical simulation; automobile exposed panel flow field; mold thickness; rod deflection method; numerical simulation; automobile exposed panel
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MDPI and ACS Style

Liu, Y.; Yang, J.; Huang, F.; Zhu, K.; Liu, F.; Gong, J. Comparison of the Flow Field in a Slab Continuous Casting Mold between the Thicknesses of 180 mm and 250 mm by High Temperature Quantitative Measurement and Numerical Simulation. Metals 2021, 11, 1886. https://doi.org/10.3390/met11121886

AMA Style

Liu Y, Yang J, Huang F, Zhu K, Liu F, Gong J. Comparison of the Flow Field in a Slab Continuous Casting Mold between the Thicknesses of 180 mm and 250 mm by High Temperature Quantitative Measurement and Numerical Simulation. Metals. 2021; 11(12):1886. https://doi.org/10.3390/met11121886

Chicago/Turabian Style

Liu, Yibo, Jian Yang, Fuxiang Huang, Keran Zhu, Fenggang Liu, and Jian Gong. 2021. "Comparison of the Flow Field in a Slab Continuous Casting Mold between the Thicknesses of 180 mm and 250 mm by High Temperature Quantitative Measurement and Numerical Simulation" Metals 11, no. 12: 1886. https://doi.org/10.3390/met11121886

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