Influence of M-EMS on Fluid Flow and Initial Solidification in Slab Continuous Casting
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2021
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Abstract
A mathematical model coupled with electromagnetic field has been developed to simulate the transient turbulence flow and initial solidification in a slab continuous casting mold under different electromagnetic stirring (EMS) currents and casting speeds. Through comparing the magnetic flux density, flow field with measured results, the reliability of the mathematical model is proved. The uniform index of solidified shell thickness has been introduced to judge the uniformity of the solidified shell. The results show that a horizonal recirculation flow has been generated when EMS is applied, and either accelerated or decelerated regions of flow field are formed in the liquid pool. Large EMS current and low casting speed may cause the plug flow near the mold narrow face and a suitable EMS current can benefit to the uniform growth of solidified shell. Meanwhile, an industrial test exhibits that EMS can weaken the level fluctuation and number density of inclusion. Overall, a rational EMS current range is gained, when the casting speed is 1.2 m/min, the rational EMS current is 500–600 A.
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liu2021materialsinfluence
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| Authors | Guoliang Liu;Haibiao Lu;Bin Li;Chenxi Ji;Jiangshan Zhang;Qing Liu;Zuosheng Lei;Liu, Guoliang;Lu, Haibiao;Li, Bin;Ji, Chenxi;Zhang, Jiangshan;Liu, Qing;Lei, Zuosheng; |
| Journal | Materials (Basel, Switzerland) |
| Year | 2021 |
| DOI |
10.3390/ma14133681
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