热型连铸工艺参数对液固界面形状位置特性影响的仿真  

Numerical Simulation of Influence of Processing Parameters on the Position and Shape Features of Liquid-solid Interface in Ohno Continuous Casting (OCC)

作　　者：徐华苹[1] 毛协民[1] 李重河[1] 梁红玉[1] 

机构地区：[1]上海大学材料科学与工程学院

出　　处：《特种铸造及有色合金》2007年第12期923-926,共4页Special Casting & Nonferrous Alloys

摘　　要：根据热型连铸过程的原理与传热特点,建立了热型连铸过程的物理、数学模型,通过数值计算仿真研究,考察了冷却距离、牵引速度以及铸型内壁温度,对热型连铸过程中液固界面位置,及其界面形状因子的影响。获得了各工艺参数的最佳分布范围,以及在最佳参数组合状态下的液固界面的特性数据,明确了各工艺参数对液固界面特性的影响强弱程度,并通过实际生产实践进行了验证。The physical and mathematical model were established based on the principles and heat transfer features of the OCC to investigate the effects of some variables,including cooling distance,pulling velocity and internal-wall temperature in mold,on the position and shape factors of liquid-solid interface during OCC process.The optimized processing parameters and the feature data of liquid-solid interface in the condition of optimized processing parameters were described.The influencing orders of processing parameters on the features of liquid-solid interface were determined,verifying by practical production.

关 键 词：热型连铸 数值分析 液固界面位置 形状因子 

分 类 号：TG249.7[金属学及工艺—铸造]