Structure Optimization of Horizontal Continuous Casting Tundishes Using Mathematical Modeling and Water Modeling

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  • Yang Shufeng
    Visiting Scholar at Missouri University of Science and Technology
  • Zhang Lifeng
    Department of Material Science & Engineering, Missouri University of Science and Technology (Missouri S&T)
  • Li Jingshe
    School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing
  • Peaslee Kent
    Department of Material Science & Engineering, Missouri University of Science and Technology (Missouri S&T)

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Abstract

The configuration of a tundish for a two-strand horizontal continuous caster was designed and optimized using water modeling, mathematical modeling and industrial trials. Five designs were studied: the original tundish without flow control devices, the tundish with a turbulence inhibitor at the bottom, the tundish with a deep inlet launder and a tilted dam at the end of the inlet launder, the tundish with two dams with holes, and the tundish with a shallow inlet launder and a high dam in the main chamber. Water modeling was used to measure residence time and investigate dead zone fractions and fluid flow patterns. In the mathematical modeling, fluid flow, heat transfer and inclusion motion and removal were calculated. In industrial trials, the total oxygen, nitrogen pick-up, and inclusions in steel samples taken from the tundish and the billets were analyzed. The results indicated that the tundish with an inlet launder and a dam either at the end of the chamber or in the main chamber was the best design.

Journal

  • ISIJ International

    ISIJ International 49 (10), 1551-1560, 2009

    The Iron and Steel Institute of Japan

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