1400F轧机工作辊与冷却液之间的换热特性  

Convective heat transfer analysis between working roll and coolant fluid of mill 1400F

作　　者：尹凤福[1] 李谋渭[1] 张大志[1] 刘鸿飞[1] 梁志远[1] 

机构地区：[1]北京科技大学机械工程学院

出　　处：《中国有色金属学报》2003年第1期51-55,共5页The Chinese Journal of Nonferrous Metals

摘　　要：在分析轧制过程中热量转移的基础上 ,应用ANSYS有限元软件分析了 14 0 0F铝带轧机工作辊与冷却液之间的换热特性 ,得到了工作辊表面与冷却液之间的对流换热系数 ,以及对流换热中的冷却液喷射速度和温度的影响。模拟结果表明 ,对流换热系数值和热流密度值均随工作辊表面温度降低而减小 ,冷却液喷射速度的增大和温度的降低都会导致对流换热系数的增大。仿真结果得到了实验的验证 。On the base of analysis of convective heat transfer du ri ng the milling, property of convective heat transfer between working rolls and c oolant fluid of aluminum strip mill(1400F) was analyzed in detail with the fam ous software ANSYS. The value of film coefficients at different surface temperat ure of the working rolls was obtained. The effect of coolant fluids velocity a nd temperature on convective heat transfer was also analyzed. The results of sim ulation show that the value of film coefficients and the value of heat flux will decrease as the surface temperature of the working roll drops. The value of fil m coefficients will increase with the rising speed and the reducing temperature of coolant fluid. These results are consistent with the experiments and provide the boundary conditions for working out the temperature field of the working rol ls.

关 键 词：带材轧制 1400F轧机 工作辊 冷却液 换热特性 有限元 

分 类 号：TG333.7[金属学及工艺—金属压力加工]