重钢连铸方坯脱方控制的实践

The practice on controlling the rhombic deformation of casting billet in Chongqing Iron ＆ Steel Group Co.

本文结合重钢股份公司炼钢厂的现状，对连铸一车间方坯脱方的成因进行分析，发现铜管状况与钢种、拉速不匹配、铸坯不均匀冷却是脱方形成且超标的主要原因，并确定了相应的预防及优化措施，实施效果良好。

Combined.with the current situation of the Chongqing Iron and Steel Co,Ltd., the reasons for rhombic of continuous casting billet in The first casting workshop are analyzed in this paper. The main factors that cause rhombic are the condition of the mould and the steel, casting speed are unmatched, the cooling isn＇ t uniformity. The optimized measures had been implemented, and then have gained good effects.