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Numeric Simulation of the Steel Flow in a Slab Caster with a Box‐Type Electromagnetic Stirrer
Steel Research International ( IF 2.2 ) Pub Date : 2020-07-28 , DOI: 10.1002/srin.202000067
Martin Barna 1 , Mirko Javurek 1 , Peter Wimmer 2
Affiliation  

The usage of electromagnetic actuators in the continuous steel‐casting process is on a steady rise, due to its possibilities for a sophisticated, contactless flow control. The complexity of the casting process and the ever‐increasing quality demands require a well‐founded knowledge of the interaction between the electromagnetic actuators and the liquid steel flow. Numeric modeling provides a detailed view and is therefore crucial for understanding the interaction between the electromagnetic fields and the liquid steel flow. Only a deep insight into the coupling between the liquid steel flow and the electromagnetic forces makes it possible to improve/optimize the continuous casting process. The work presented here is part of an ongoing research to bridge the gap between the liquid steel flow and the grain structure of the end product. The article's focus lies on the liquid steel flow modified by a traveling magnetic field—relying mainly on numerical simulations. Different modeling approaches are used to simulate linear electromagnetic stirring in the secondary cooling zone of a slab caster. An appropriate model is chosen to investigate the influence of various stirring parameters, stirring modes, and stirring positions. From the results, conclusions for the real casting process can be drawn.

中文翻译:

带有箱式电磁搅拌器的板坯连铸机钢流的数值模拟

由于可以进行复杂的非接触式流量控制,因此在连续铸钢过程中电磁执行器的使用正在稳步增长。铸造工艺的复杂性和对质量的要求不断提高,要求对电磁执行器和钢水流之间的相互作用有充分的了解。数值建模提供了详细的视图,因此对于理解电磁场和钢水流之间的相互作用至关重要。只有深入了解钢水流与电磁力之间的耦合,才能改善/优化连续铸造过程。本文介绍的工作是正在进行的研究的一部分,该研究旨在弥合钢水流和最终产品的晶粒结构之间的差距。本文的重点在于通过行进磁场修改的钢水流-主要依靠数值模拟。在板坯连铸机的次级冷却区中,使用了不同的建模方法来模拟线性电磁搅拌。选择合适的模型来研究各种搅拌参数,搅拌模式和搅拌位置的影响。从结果可以得出实际铸造工艺的结论。
更新日期:2020-07-28
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