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<p>The turbulence inhibitor (TI) significantly influences the flow field in the tundish. Through physical and numerical simulations, this study investigated the effects of ribs at the TI bottom on open eye formation and molten steel flow behavior in the tundish. Industrial trials were subsequently conducted to validate an optimized installation strategy. The results show that the presence of ribs significantly altered the flow direction, increased the flow length, reduced the open eye area by 6.1% to 7.3%, and decreased the loss of acid-soluble aluminum in molten steel by 13.8 to 16.2 ppm. Furthermore, aligning the ribs parallel to the tundish longitudinal axis exhibited superior performance in suppressing open eye formation, accompanied by reduced burn-off of acid-soluble aluminum in molten steel compared to alternative configurations.</p>

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Effect of Turbulence Inhibitor Ribs on “Open Eye” Formation in a Slab Tundish

  • 期刊论文

  • 发表日期：

    2025年9月12日

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  • Xie Xin,
  • Hu Hao,
  • Yang Xiaodong,
  • Wu Chenhui,
  • Li Yugang,
  • Long Mujun,
  • Chen Dengfu

摘要

The turbulence inhibitor (TI) significantly influences the flow field in the tundish. Through physical and numerical simulations, this study investigated the effects of ribs at the TI bottom on open eye formation and molten steel flow behavior in the tundish. Industrial trials were subsequently conducted to validate an optimized installation strategy. The results show that the presence of ribs significantly altered the flow direction, increased the flow length, reduced the open eye area by 6.1% to 7.3%, and decreased the loss of acid-soluble aluminum in molten steel by 13.8 to 16.2 ppm. Furthermore, aligning the ribs parallel to the tundish longitudinal axis exhibited superior performance in suppressing open eye formation, accompanied by reduced burn-off of acid-soluble aluminum in molten steel compared to alternative configurations.