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<p>The flow of molten steel at the solidification front in a continuous casting mold has a significant impact on slab quality. However, due to the high temperature and opacity of the mold, direct velocity measurements are extremely challenging. The functional relationship between flow speed at the solidification front and the temperature of the outer surface of the solidified shell is derived heat conduction equations. Subsequently, a coupled flow-heat transfer-solidification model for the mold is developed to numerically determine the flow speed and temperature distribution. Based on thermocouple installation positions and the impingement point location of the molten steel jet on the narrow face of the mold, 33 sampling points are selected along both the narrow/wide face centerline and corresponding heights at the solidification front. Finally, the flow speed at the solidification front is fitted as a function of the outer surface temperature of solidified shell and the distance from the meniscus, with detailed analysis of its distribution characteristics.</p>

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Quantitative correlation between solidification front steel speed and solidified shell surface temperature in a slab continuous casting mold

  • 期刊论文

  • 发表日期：

    2026年2月26日

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  • Wen-Jie Rong,
  • Yan Jiang,
  • Xin-Yi Li,
  • Zhong-Qiu Liu,
  • Bao-Kuan Li,
  • Cheng-Jun Liu

摘要

The flow of molten steel at the solidification front in a continuous casting mold has a significant impact on slab quality. However, due to the high temperature and opacity of the mold, direct velocity measurements are extremely challenging. The functional relationship between flow speed at the solidification front and the temperature of the outer surface of the solidified shell is derived heat conduction equations. Subsequently, a coupled flow-heat transfer-solidification model for the mold is developed to numerically determine the flow speed and temperature distribution. Based on thermocouple installation positions and the impingement point location of the molten steel jet on the narrow face of the mold, 33 sampling points are selected along both the narrow/wide face centerline and corresponding heights at the solidification front. Finally, the flow speed at the solidification front is fitted as a function of the outer surface temperature of solidified shell and the distance from the meniscus, with detailed analysis of its distribution characteristics.