重钢连铸方坯脱方成因和控制措施剖析

Cause analysis and countermeasures on rhombic deformation of casting billet in Chongqing Steel

分析了重钢连铸方坯脱方的成因。铜管状况与钢种、拉速不匹配,一、二次冷却不均匀是脱方形成的主要原因,采取了相应的措施后效果良好。

Reasons for rhombic deformation of the continuous casting billet in Chongqing Iron and Steel Co. Ltd. are analyzed in this paper. The main factors causing the rhombic deformation are found to be firstly the unmatching of the mould condition with the steel grade and the casting speed and at the same time the primary cooling and secondary cooling are not performed uniformly. Very good effects have been achieved since adoption of the optimized measures.