EFFECT OF SUBMERGED ENTRY NOZZLE (SEN) PARAMETERS AND SHAPE ON 3-D FLUID FLOW IN MOULD FOR BEAM BLANK CONTINUOUS CASTING
来源期刊：Acta Metallurgica Sinica2004年第5期
论文作者：R.Shi Y.P.Du J.W.Yang X.C.Cui
Key words：SEN parameter; SEN shape; beam blank continuous casting; 3-D flow distribution; turbulent kinetic energy;
Abstract: According to turbulent theory and characteristics of beam blank continuous casting, 3-Dmodel to represent the flow of beam blank mould is established. The predicted results indicate that the exit obliquity of up 15°(+15°) should be adopted, which will benefit the floatation of non-metallic inclusion and purification of the molten steel. When the nozzle angle is 120°, the flow pattern is reasonable. Proper nozzle depth can be 200mm. Turbulent kinetic of meniscus can be reduced by adopting the square nozzle and suitable area of side outlet when casting speed increases. The results are consistent with those of water model experiment, so the model is exact and reasonable. The model can provide important information for design of SEN and defining of immersion depth.
R.Shi1，Y.P.Du2，J.W.Yang2，X.C.Cui2
(1.School of Mechanism, Yanshan University, Qinghuangdao 066004, China;
2.School of Material Science, Taiyuan University of Science & Technology, Taiyuan 030024, China)
Abstract:According to turbulent theory and characteristics of beam blank continuous casting, 3-Dmodel to represent the flow of beam blank mould is established. The predicted results indicate that the exit obliquity of up 15°(+15°) should be adopted, which will benefit the floatation of non-metallic inclusion and purification of the molten steel. When the nozzle angle is 120°, the flow pattern is reasonable. Proper nozzle depth can be 200mm. Turbulent kinetic of meniscus can be reduced by adopting the square nozzle and suitable area of side outlet when casting speed increases. The results are consistent with those of water model experiment, so the model is exact and reasonable. The model can provide important information for design of SEN and defining of immersion depth.
Key words:SEN parameter; SEN shape; beam blank continuous casting; 3-D flow distribution; turbulent kinetic energy;
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