新钢4号板坯连铸机升级改造的技术应用和生产实践  

Technologies adopted in No.4 slab caster revamping at xinyu steel

作　　者：冉莲玉[1] 周贱生 彭绍南 曾珊[1] 毛敬华[1] 刘芳[1] 

机构地区：[1]中冶赛迪工程技术股份有限公司,重庆400013 [2]新余钢铁股份有限公司,江西新余338001

出　　处：《连铸》2017年第2期62-68,共7页Continuous Casting

摘　　要：分析了新钢一炼钢4号板坯连铸机的铸坯表面裂纹、角部裂纹、中间裂纹、中心偏析等质量缺陷的产生原因,通过对二次冷却系统改造、采用了CISDI三维模型进行二冷动态控制和CISDI动态轻压下技术等措施,有效的提高了板坯表面质量和内部质量,取得了良好效果。This paper analyzes the reasons of faults such as surface cracks, comer cracks, inner medium cracks, segre- gation etc. of the production of Xinyu Steel No.4 slab caster. Measures were put forward like secondary cooling system revamping, CISDI 3D dynamic secondary cooling controlling, and CISDI dynamic soft reduction. The practice shows that slab surface and inner quality have been upgraded.

关 键 词：板坯连铸机 改造 二次冷却系统 三维动态二冷控制 动态轻压下 

分 类 号：TF341.6[冶金工程—冶金机械及自动化]