Numerical Simulation on Heat Transfer of No.3 Slab Continuous Casting Mold at Baosteel

The heat transfer in continuous casting mold was investigated through numerical simulation.The non-uniform superheat distribution caused by turbulence in molten steel pool was taken into account.The heat flux distribution on the shell was calculated by coupling fluid flow field and temperature field.The heat transfer models for the shell,the mold flux inside the gap,and mold copper plate were built respectively.The effects of oscillation marks,solid flux,liquid flux and air gap on the heat transfer were included in the model for the mold flux inside the gap.The current models can predict the thickness and surface temperature of shell,copper mold temperature,the temperature drop of cooling water and ideal taper etc.,considering slab shape and size,and casting speed.The simulation was validated by the actual operation data of No.3 continuous caster at Baosteel.The agreement was very well.