A new method for determination of the theoretical reduction amount for wide-thick slab during the mechanical reduction process

Mechanical soft reduction (MSR) is an effective method for elimination of the centerline segregation and porosity continuous casting steel slab, amount a key parameter that determines whether MSR could be applied successfully. In present work, 2D heat transfer model was developed predicting non-uniform solidification wide-thick slab. The measured shell thickness by nail shooting experiment slab surface temperature infrared camera were to validate model. A new calculation theoretical consider influence then derived. Based on predicted field newly-proposed method, required gradient/rate calculated discussed. difference between previous speed also investigated.