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<p>Systematic flow measurements are conducted in a 1:6 fluid-dynamic model of the continuous steel slab casting process. The focus is on the impact of various traveling magnetic fields on the flow in the mold. The HZDR mini-LIMMCAST facility provides a controlled and reproducible environment, ensuring accurate and reproducible experiments. The GaInSn alloy is chosen as the modeling fluid, because it remains liquid at room temperature due to its low melting point. Our study focuses on three different configurations of traveling fields: inward, outward, and rotational stirring. In each configuration, magnetic flux density and frequency were varied to understand their respective impact on the flow behavior. The horizontal velocity at the mold’s middle plane and two parallel side planes were measured using Ultrasound Doppler Velocimetry (UDV). Additionally, the vertical velocities at the mold’s middle plane were measured by the same method. The results demonstrated a significant influence on the velocities in the upper mold region under the impact of each traveling field configuration. This study significantly contributes to the existing knowledge about the impact of the traveling magnetic field on the liquid steel flow in the continuous casting of steel.</p>

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Experimental Study on the Impact of Traveling Electromagnetic Fields on the Mold Flow in a Slab Caster

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2025年3月10日

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  • Bahareh Najafian Ashrafi,
  • Martin Barna,
  • Klaus Timmel,
  • Thomas Wondrak,
  • Christine Gruber,
  • Sven Eckert

摘要

Systematic flow measurements are conducted in a 1:6 fluid-dynamic model of the continuous steel slab casting process. The focus is on the impact of various traveling magnetic fields on the flow in the mold. The HZDR mini-LIMMCAST facility provides a controlled and reproducible environment, ensuring accurate and reproducible experiments. The GaInSn alloy is chosen as the modeling fluid, because it remains liquid at room temperature due to its low melting point. Our study focuses on three different configurations of traveling fields: inward, outward, and rotational stirring. In each configuration, magnetic flux density and frequency were varied to understand their respective impact on the flow behavior. The horizontal velocity at the mold’s middle plane and two parallel side planes were measured using Ultrasound Doppler Velocimetry (UDV). Additionally, the vertical velocities at the mold’s middle plane were measured by the same method. The results demonstrated a significant influence on the velocities in the upper mold region under the impact of each traveling field configuration. This study significantly contributes to the existing knowledge about the impact of the traveling magnetic field on the liquid steel flow in the continuous casting of steel.