Scholarlink

<p>With increasing demands regarding efficiency and product quality, flow control by electromagnetic fields is becoming the state-of-the-art in continuous slab casting technology. In such systems, the flow is controlled by Lorentz forces, which arise from the interaction between liquid steel flow and an externally applied magnetic field. Static magnetic fields generated by Electromagnetic Braking (EMBr) systems serve to stabilize the flow. Conversely, traveling magnetic field systems, like the Electromagnetic Level Accelerator (EMLA), provide more active control over the liquid steel flow. The proper application of combined electromagnetic stirring and braking within the mold results in a&#xa0;favorable flow behavior, which leads to an increased internal strand quality even at high casting speeds. Therefore, understanding and optimizing the interplay of electromagnetic fields with casting parameters is essential. The complexity of these systems calls for a&#xa0;numerical investigation. A&#xa0;substantial number of simulations is required to conduct a&#xa0;comprehensive parametric study and optimize the performance of the electromagnetic flow control system. In this contribution, a&#xa0;system equipped with AC and DC coils, which can generate combined electromagnetic fields, is presented. Using Computational Fluid Dynamics (CFD) simulations, we examined the impact of EMBr and EMLA on mold flow patterns across a&#xa0;range of casting parameters, including casting speed, width, and sub-entry nozzle immersion depths commonly used in the casting process.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Simulation and Optimization of Electromagnetic Stirring and Braking in Slab Continuous Casting Mold

  • 期刊论文

  • 发表日期：

    2025年1月8日

查看全文
  • Alija Vila,
  • Felix Lindlbauer,
  • Zhao Zhang,
  • Giovanni Viciconte,
  • Christoph Goniva

摘要

With increasing demands regarding efficiency and product quality, flow control by electromagnetic fields is becoming the state-of-the-art in continuous slab casting technology. In such systems, the flow is controlled by Lorentz forces, which arise from the interaction between liquid steel flow and an externally applied magnetic field. Static magnetic fields generated by Electromagnetic Braking (EMBr) systems serve to stabilize the flow. Conversely, traveling magnetic field systems, like the Electromagnetic Level Accelerator (EMLA), provide more active control over the liquid steel flow. The proper application of combined electromagnetic stirring and braking within the mold results in a favorable flow behavior, which leads to an increased internal strand quality even at high casting speeds. Therefore, understanding and optimizing the interplay of electromagnetic fields with casting parameters is essential. The complexity of these systems calls for a numerical investigation. A substantial number of simulations is required to conduct a comprehensive parametric study and optimize the performance of the electromagnetic flow control system. In this contribution, a system equipped with AC and DC coils, which can generate combined electromagnetic fields, is presented. Using Computational Fluid Dynamics (CFD) simulations, we examined the impact of EMBr and EMLA on mold flow patterns across a range of casting parameters, including casting speed, width, and sub-entry nozzle immersion depths commonly used in the casting process.