The Mathematical Model of Cooling and Heat Transfer for the Solidification of Thin Slab during Continuous Casting Process

In the established model,the cooling differences are considered between the surface of inner radius and that ofouter radius, and in the transverse direction of thin slab. And the conception for theeffective coefficient of spraying water in continuous casting is firstly put forward.According to different casting speeds and different cooling zones, different time steplengths are adopted. In this model the heat transfer differences are thought over amongvertical and curved zones, wide and narrow surfaces an well as angular zone of mould. Themethod of the corrected equivalent specific heat is used to deal with latent heat. Theinfluence of forced convection is considered on heat transfer. Therefore, the model hashigher accuracy and is consistent with the practice.