不同铸轧条件下铸嘴型腔熔体出口速度、温度和阻力分析  

Analysis of exit speed, temperature and resistance of melt in nozzle cavity under various roll casting conditions

作　　者：刘晓波[1] 陈三风[1] 

机构地区：[1]南方冶金学院机电工程学院,江西赣州341000

出　　处：《湘潭矿业学院学报》2003年第4期28-31,共4页Journal of Xiangtan Mining Institute

基　　金：国家教育部科学技术重点项目(编号:02081);江西省自然科学基金项目(编号:0250020)

摘　　要：通过双辊铸轧铸嘴型腔三维熔体流动与传热数学模型计算了不同铸轧条件下铸嘴型腔熔体各个分量出口速度、温度分布以及流动阻力损失.结果表明:在超薄快速铸轧时,熔体横向速度uy、高向速度uz远小于流向速度ux.同常规铸轧相比,超薄快速铸轧铸嘴型腔流动阻力系数小且沿型腔长度增长缓慢.图2,参14.Each heft of exit velocity, temperature distribution and flow resistance losses of melt in nozzle cavity were calculated with mathematical model of 3D melt flow and heat transfer in twin - roll nozzle cavity under various roll casting conditions . The results show that melts landscape speed uy , vertical speed uz are much lower than flowing speed ux under thin - gauge high - speed casting . Compared with normal roll casting, the melt flowing resistance coefficient is lower and it increases very slowly along the cavity length direction under thin -gauge high -speed casting. 2figs. ,14refs.

关 键 词：铸嘴型腔 出口速度分布 温度分布 阻力系数 

分 类 号：TG29[金属学及工艺—铸造] TG33