Research on Formation of Oscillation Marks from Continuous Casting of Automobile Steel Plate and its Solidification Process Simulation

This paper expounds that the influence of oscillation marks of steel billet on the fatigue strength and the tensile strength of steel plate used in automobile, and the mold model with meniscus in the Crystallizer was established by MSC.MARC software. The solidification law of the shell and the solidification process at the meniscus region are analysed through the temperature field simulation results, which validates that the solidification simulation results of the shell at the meniscus were consistent with the actual production. Changes of initial freezing point position at the meniscus at different drawing speeds are researched, Indirectly the relationship between the depth of oscillation marks and the drawing speed was analysed, At the same time, the relationship between the initial solidification point and the drawing speed was plotted. (paper)