The segregation of solute elements at solidification front could be greatly improved by application of electromagnetic stirring(SEM)in secondary cooling zone.The location of SEM in secondary cooling zone affects the o...The segregation of solute elements at solidification front could be greatly improved by application of electromagnetic stirring(SEM)in secondary cooling zone.The location of SEM in secondary cooling zone affects the operational effect.In the present study,based on the application of SEM in Ultra-thick slab continuous casting,the shell thickness was calculated by self-programming code and the results were verified by nail-shooting test.A numerical model was established to calculate the fluid flow of molten steel under shell to determine the suitable SEM location in secondary cooling zone.The results shows that the velocity of molten steel increases with increase of stirring current which enhance the circulatory flow of unset steel at solidification front.Whereas,in order to fully develop ability of SEM it is necessary to select suitable stirring current and mode for ultra-thick slab casting.This calculation provides theoretical base for application of SEM in secondary cooling zone during ultra-thick slab casting process.展开更多
文摘The segregation of solute elements at solidification front could be greatly improved by application of electromagnetic stirring(SEM)in secondary cooling zone.The location of SEM in secondary cooling zone affects the operational effect.In the present study,based on the application of SEM in Ultra-thick slab continuous casting,the shell thickness was calculated by self-programming code and the results were verified by nail-shooting test.A numerical model was established to calculate the fluid flow of molten steel under shell to determine the suitable SEM location in secondary cooling zone.The results shows that the velocity of molten steel increases with increase of stirring current which enhance the circulatory flow of unset steel at solidification front.Whereas,in order to fully develop ability of SEM it is necessary to select suitable stirring current and mode for ultra-thick slab casting.This calculation provides theoretical base for application of SEM in secondary cooling zone during ultra-thick slab casting process.
