铝合金铸轧机铸嘴三级分流铝熔体流热耦合行为研究  

Study on the heat coupling behavior of cast-rolling aluminum alloy melt with the three-stage shunt of casting nozzle

作　　者：黄寿志 夏鹏翔 李婧 程磊 马锦智 孙振智 潘秋红[2] HUANG Shouzhi;XIA Pengxiang;LI Jing;CHENG Lei;MA Jinzhi;SUN Zhenzhi;PAN Qiuhong(Inner Mongolia Liansheng New Energy Materials Co.,Ltd.,Tongliao 029200,China;College of Materials Science and Engineering,Jiangsu University,Zhenjiang 212013,China)

机构地区：[1]内蒙古联晟新能源材料有限公司,通辽029200 [2]江苏大学材料科学与工程学院,镇江212013

出　　处：《轻合金加工技术》2025年第1期51-58,共8页Light Alloy Fabrication Technology

基　　金：省部级基金项目(2022SYSJ0172)。

摘　　要：采用数值模拟方法研究了三级分流结构对铸轧机铸嘴型腔内铝熔体热耦合行为的影响。结果表明:三级分流块形状和大小对铸嘴的分流起着重要的作用。涡旋的产生及其尺度对铸嘴热场的扰动不容忽视,当铸嘴型腔中产生的涡旋直径小于55 mm时,所产生的涡旋对铝熔体分流有益;当涡旋直径大于88 mm时,铸嘴出口处的铝熔体产生较大流速差,使铸嘴出口处的铝熔体流动不平稳。The numerical simulation was used to study the influence of the three-stage shunt on the thermal coupling behavior of aluminum alloy melt in the casting nozzle cavity.The results indicate that the reasonable arrangement of the shape and size of the three-stage shunt block plays an important role in the shunt of the casting nozzle,and the generation and scale of vortices shall not be ignored in disturbing the thermal field of the casting nozzle.In the nozzle cavity,the vortices with a diameter of about 55 mm or less have a beneficial effect on the flow distribution of aluminum melt,while those with a diameter of about 88 mm or more generates a large flow velocity difference at the outlet of the casting nozzle,disrupting the melt flow and making the outlet flow unstable.

关 键 词：流热耦合 三级分流 涡旋 流场 铸轧 

分 类 号：TG339[金属学及工艺—金属压力加工]