板坯浸入式水口的优化  

Optimization of Nozzle in Slab Mold

作　　者：郑和武[1] 沈巧珍[1] 骈建峰[1] 吴曌环[1] 方建红[2] 王洪富[2] 

机构地区：[1]武汉科技大学材料与冶金学院,湖北武汉430081 [2]武汉钢铁集团鄂城钢铁有限责任公司,湖北鄂州436002

出　　处：《连铸》2014年第2期5-10,共6页Continuous Casting

摘　　要：以某厂铸机断面为250mm×1 600mm的结晶器为研究对象,用物理模拟与数值模拟的方法进行研究,优化水口结构与工艺参数,以改善结晶器内钢液的流场分布。试验结果表明:优化的浸入式水口的结构参数为底部形状凹底、出口形状跑道形、出口倾角-10°、出口面积比2.233,结合现场生产实际建议浸入深度140mm、拉坯速度1.1m/min。A mold with a section of 250 mm× 1 600 mm was taken as the research object in a steel plant. Physical simulation and numerical simulation were used to research steel flow field in the mold and then get optimization of the nozzles~ structure and technical parameters. The results show that, in the lab, the optimum nozzles＇ structure parameters are that bottom shape of nozzle depressed-bottom, the exit shape racetrack, tilt angle of the nozzle exit of --10°, exit area radio 2. 233, immersion depth 140 mm and casting speed 1.1 m/min considering the real production.

关 键 词：浸入式水口(SEN) 物理模拟 数值模拟 液面波动 冲击深度 

分 类 号：TF341.6[冶金工程—冶金机械及自动化]