在线布流调节影响铸嘴型腔熔体流场和温度场的研究  

An Investigation of the Influence of Online Adjusting Flow on the Fluid Field and Temperature Filed in Tip Cavity

作　　者：刘晓波[1] 张晓莉[1] 

机构地区：[1]南方冶金学院,江西赣州341000

出　　处：《轻合金加工技术》2004年第2期5-9,13,共6页Light Alloy Fabrication Technology

基　　金：国家教育部科技项目(编号:02081);江西省自然科学基金项目(编号:0250020)

摘　　要：建立了在线布流调节时铸嘴型腔熔体非定常流动和传热数学模型,应用数值方法仿真分析了入口速度斜坡变化时铸嘴型腔流场、温度场、压力场的动态演化过程。结果表明,对型腔进行在线布流调节来改善铸嘴型腔流场、温度场是可行的。In this paper,a mathematical model for nonsteady flow and heattransfer of melt in tipcavity when online adjusting flow is developed.Numerical method is used to simulatethe dynamic evoluting process of fluid field,temperature field and pressure field of melt when the inlet velocity under slopchange.The simulation results indicate that it is feasible to improve fluid field,temperature filed in tip cavity by adjusting fluid online,which provides basis to adjusting the control model online to assure the quality of strip.

关 键 词：铸轧机 铸嘴型腔 在线布流调节 流场 温度场 数值仿真 

分 类 号：TG29[金属学及工艺—铸造]