不同浸入式水口250 mm×1800 mm板坯连铸过程模拟  

Simulation of 250 mm×1800 mm Slab Continuous Casting Process Under Different SEN Nozzle

作　　者：仇灏[1] 时朋召 

机构地区：[1]钢铁研究总院先进钢铁流程及材料国家重点实验室,北京100081 [2]钢铁研究总院连铸技术国家工程研究中心,北京100081

出　　处：《铸造技术》2017年第7期1701-1707,共7页Foundry Technology

摘　　要：通过水模型物理模拟和数值模拟的方法研究某钢厂3种不同水口在250 mm×1 800 mm板坯连铸过程中对钢液流场、弯月面和温度场的影响。结果表明:1#水口弯月面钢液不够活跃,不利于液渣上浮;2#水口存在结晶器上部温度低,结晶器凝固坯壳薄的问题;3#水口具有能促进液渣层分布均匀,提高结晶器上部温度的优点。250 mm×1 800 mm板坯连铸过程中,3#水口使用效果良好。The effect of three kinds of nozzles on flow field, the meniscus and the temperature field of the molten steel in continuous casting process of 250 mm×1800 mm slabs in a steel plant was researched by water model and numerical simulation. The results show, 1# nozzle, the molten steel has a low velocity in meniscus flux, it is not conducive to liquid slag floating; 2# nozzle, the meniscus temperature is low and the solidified shell is too thin; 3# nozzle, the slag layer is uniform in distribution and the temperature in the upper region of the mold is improved. During slab continuous casting process, 3# nozzle enjoys the better performance.

关 键 词：板坯连铸 流场 凝固 数值模拟 

分 类 号：TF777.1[冶金工程—钢铁冶金]