Study On The Fluid Flow Behaviors In Six-strand Continuous Casting Tundish And Mold

In order to assure higher efficiency continuous casting technology and improve the quality of products, it is key point to know and control the steel flow pattern in the tundish and mould. At present, physical and numerical simulation were widely used to research method. Based on the billet and round billet six-strand tundish and mould which parameters of section is 200mm×200mm/(?)200mm in Panzhihua Iron and Steel, fluid flow, mass and heat transfer of molten-steel in the tundish for different conditions (bare tundish and tundish with flow control devices) and effect of different SEN for molten-steel in mould were analyzed in this paper under physical and numerical simulation methods.Physical and numerical simulation were used to reseach fluid flow, mass and heat transfer of molten-steel and flow visualization in tundish under different FCDs. Through a series of experiments on the above analysis and numerical simulation results showed that: the case 8 with"V"type baffle with holes, turbulence inhibitor and dam is best, but"V"type baffle of large angle(88o) were easily collaped in practice. Therefore, the angle between the baffles were adjust. Through a series of experiments, the results showed that: the best case is case 21 with small angle(74o) of"V"type baffle with holes, turbulence inhibitor and dual dams, the case 20 with small angle of"V"type baffle with holes, turbulence inhibitor and single dam was second.Through the analysis of results measured on level fluctuation, the impact of depth and coverage of the flux for SEN, and application of FLUENT software to simulate the SEN, the results showed that: the diameter of 40mm of SEN can satisfy the test target.