Adjustment of the Coarse Grain Problem of the Horizontal Continuous Casting Slab by Optimizing the Crystallizer Structure

Abstract This paper mainly focuses on the problem of coarse grain bottom surface red copper horizontal continuous casting billet, and tries to thicken end crystallizer by combining numerical simulation industrial experiment, indirectly improves cooling strength billet solve coarseness. The results show that optimum diameter lower inlet sleeve was 14.2 mm, when increased from 11 mm intensity part gradually increased, significantly refined; with increase water inlet, average width columnar decreased 1.94 1.64 size decreased, number grains increased.