大方坯连铸四孔浸入式水口的应用研究

钢铁, 2008, 43(4): 101-0.

大方坯连铸四孔浸入式水口的应用研究

顾武安 , 唐萍 , 文光华 , 祝明妹 , 苍大强

1.1. 北京科技大学冶金与生态工程学院，北京 100083；2. 重庆大学材料科学与工程学院，重庆 400044；3. 攀枝花钢铁研究院，四川攀枝花 617000

1.1. Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing 100083, China

2. 2. College of Materials Science and Engineering of Chongqing University, Chongqing 400044, China

关键词：结晶器;浸入式水口;数理模拟

Study on Submerged Entry Nozzle With Four Outlets for Bloom Continuous Casting

GU Wuan , TANG Ping , WEN Guanghua , ZHU Mingmei , Cang Daqiang

Keywords： mold;submerged entry nozzle;physical and numerical simulation

针对攀钢大方坯连铸结晶器，采用四孔水口浇注重轨钢。通过物理模拟实验，测量并分析了结晶器内液面波动、冲击压力和冲击深度等因素，结合数值模拟结晶器内流体流动现象的结果，发现合理的四孔水口形式更适合浇注质量要求高的重轨钢。现场试验结果表明，采用推荐的四孔浸入式水口浇注，重轨钢铸坯表面无清理率100%，铸坯合格率达到99.95%。

A new submerged entry nozzle (SEN) with four outlets was used for casting heavy rail steel. The level fluctuation, impacting pressure and penetration depth in the mold were measured and analyzed. The fluid flow field in the mold was simulated.The results show that the SEN with four outlets is suitable for casting heavy rail steel.With such SEN，all the blooms can be cast without conditioning at a qualification rate of 99.95%.

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