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《Journal of Iron and Steel Research》 2007-05
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Numerical Studies on Comprehensive Metallurgical Behaviors in Continuous Casting Mold

ZHAO Lian-gang1,ZHANG Hui2(1.School of Material Science and Engineering,University of Science and Technology Liaoning,Anshan 114044,Liaoning,China;2.National Engineering Research Center of Continuous Casting Technology,CentralIron and Steel Research Institute,Beijing 100081,China)  
Under conditions of a slab caster and the working tip structure of SEN used,comprehensive mathematical description and simulation concerning fluid flow of liquid steel,fluctuation of bath surface and heat transfer and solidification of steel were performed.It was found that the SEN can greatly influence the fluctuation of bath surface by changing the shape and strength of steel jets coming from SEN,the up-vortex streams deviating from surface could be considered as the main reason of surface fluctuation and the maximum surface speed is located at the trough.Except for the steel jets and its adjacent streams,most of liquid steel holds temperature at liquidus due to the existence of strong convection and turbulence diffusion in mold bath.The maximum superheat on mold bath surface can be obtained over 2 K under above studying conditions,but the maximum wave height difference and the maximum surface speed corresponding to the superheat are 9 mm and 0.36 m/s respectively.
【CateGory Index】: TF777
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