板坯连铸二冷喷嘴对冷却效果影响的研究  

Research on effect of nozzle on secondary cooling results in slab continuous casting process

作　　者：卿家胜[1] 刘青[1] 王欣[1] 王先勇[1] 李玉盘[2] 胡志刚[2] 孙玉虎[2] 赵彦华[2] 

机构地区：[1]北京科技大学冶金与生态工程学院,北京100083 [2]邯郸钢铁股份公司第三炼钢厂,河北邯郸056015

出　　处：《炼钢》2010年第1期48-52,共5页Steelmaking

基　　金：教育部新世纪优秀人才支持计划资助项目(NECT07-0067)

摘　　要：板坯连铸的二次冷却是影响铸坯质量的重要因素之一。针对邯郸钢铁股份有限公司第三炼钢厂出现的板坯质量问题,对二次冷却系统的喷嘴进行优化,达到改善铸坯质量的目的。研究探讨了二次冷却区喷嘴型号的选型以及影响喷嘴冷却效果的因素。在此研究基础上,实际生产中采用了合适的喷嘴类型、布置方式及合理的水量后,铸坯的中心偏析得以改善,等轴晶率明显提高。The secondary cooling of slab continuous casting is one of the important factors affecting the quality of slab. In this paper, for the purpose of solving the problem of slab quality defects and improving slab quality in No. 3 Steelmaking Plant of Handan Iron and Steel Group Co. Ltd, the nozzles of secondary cooling system are optimized. The proper types of nozzles are determined and main factors influencing the nozzle＂ per- formance analyzed. On the basis of the previous research, by means of optimization of nozzle type, pattern of nozzle arrangement and cooling water volume the central segregation of slabs has been improved and the equiaxed crystal ratio orominentlv raised.

关 键 词：板坯连铸 二次冷却 质量 冷态性能测试 喷嘴 

分 类 号：TF777.1[冶金工程—钢铁冶金]