Effect of electromagnetic swirling flow in slide-gate SEN on flow field in square billet continuous casting mold

doi:10.11890/1006-7191-125-347

Abstract

Abstract:

In order to weaken the bias flow in the submerged entry nozzle (SEN) with slide-gate, the rotating magnetic field was imposed. The numerical method was employed to investigate the effect of rotating magnetic field on the flow field in the SEN and the mold under different slide-gate opening ratios. Numerical results showed that when the slide-gate opening ratio is smaller than 100%, the flow field in the SEN and the mold become asymmetry and there is an obvious circulation under the slide-gate in the SEN. With increasing exciting current, the divergent angle of liquid steel at the SEN outlet increases, the impact depth of liquid steel in the mold decreases. With increasing slide-gate opening ratio, the impact depth of liquid steel in the mold increases and the required exciting current to weaken the bias flow should increase.

Key words: Square billet, Electromagnetic swirling flow, Slide-gate SEN, Continuous casting, Bias flow

Dianqiao GENG,Hong LEI,Jicheng HE,Haitao LIU. Effect of electromagnetic swirling flow in slide-gate SEN on flow field in square billet continuous casting mold [J]. Acta Metallurgica Sinica (English Letters), 2012, 25(5): 347-356.

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