Abstract:The temperature field on the hot surface of the blank continuous casting mould is a key factor controlling the quality of the billet. In this paper, the contact heat transfer between the molten steel and the mold, the thermal resistance of the coasting and the protecting slag and the comprehensive heat-transfer coefficient are discussed. The temperature field of a typical mold is then numerically simulated by means of the finite element software ABAQUS. The numerically determined temperature fields of the mold in different design schemes, including different mold thickness, different velocities of cooling water and improvement of the cooling water tank and hole, provide a reference for the optimization of the molds.