双辊铸轧铸嘴型腔的三维流动分析  

3D FLOW ANALYSIS OF NOZZLE CAVITY FOR TWIN-ROLL CASTING

作　　者：刘晓波[1] 段吉安[1] 邓圭玲[1] 毛大恒[1] 钟掘 

机构地区：[1]中南工业大学机电工程学院,湖南长沙410083

出　　处：《湘潭矿业学院学报》2000年第1期43-47,共5页Journal of Xiangtan Mining Institute

基　　金：国家"九五"重点科技攻关项目资助! (编号 :9552 4 0 1 0 7)

摘　　要：建立了双辊铸轧铸嘴型腔的三维流体流动的数学模型 ,应用数值方法计算铸嘴型腔的流场 ,分析了三维流动现象及其特点 ,把计算的铸嘴出口处的流体速度与实验结果相比较 ,两者基本吻合 并得出结论 :铸嘴型腔的结构是影响流体流动的主要因素之一 常规铸轧常用铸嘴出口处熔体速度相对误差达 2 0 %以上 ,不能满足超薄快速铸轧技术的需要 图 6 ,参A 3D (three dimension) mathematical model of fluid flow was developed with regard to nozzle cavity for twin-rolling casting. A numerical method was used to calculate the fluid field in nozzle cavity. 3D flow phenomenon and characteristics of nozzle cavity were analysed. The velocity of fluid was compared by calculation with by experiment in nozzles exit. Approximate agreement between the velocity distribution curves of fluid in nozzles exit was obtained. The following conclusions were elicited: the structure of nozzle cavity is one of the major factors influencing the fluid flow. The relative error of melt velocity in the common nozzles exit for normal casting is up to more than twenty persent and can not meet the need of thin-gauge high-speed casting technology 6figs.,5refs

关 键 词：流动模型 数值计算 铸轧机 双辊铸轧型腔 

分 类 号：TG333[金属学及工艺—金属压力加工]