Abstract: In order to study the influence of different nozzle structure on the distribution of flow field and temperature field in medium low carbon continuous casting steel in mold, a threedimensional mathematical model of round billet was established by finite volume method, and the flow field and temperature field of round billet under different nozzle shapes were simulated. The results showed that the swirling nozzle could reduce the impact depth of molten steel, enhance the vortex in the mold, increase the meniscus temperature and solidification rate in the secondary cooling zone when the nozzle was immersed in 80 mm and only changed the nozzle structure. With the number of nozzles increase, the meniscus wave height and the outlet temperature of the mold decrease. When a mold electromagnetic stirring (MEMS) was used at the same time with the swirling flow nozzle, the temperature of molten steel in the mold increased, there was slag entrainment on the meniscus, and no solidified shell was formed at the outlet of the mold, so it should be avoided to use MEMS and swirling nozzle at the same time or to use low strength MEMS when swirling nozzle was used in practice.
张静,马靓,吴会平. 水口结构对连铸中低碳钢流场和温度场的影响[J]. 钢铁, 2019, 54(8): 116-123.
ZHANG Jing,MA Liang,WU Huiping. Effect of nozzle structure on flow field and temperature field of #br#
medium low carbon steel in continuous casting. Iron and Steel, 2019, 54(8): 116-123.