铝带坯双辊铸轧过程瞬态传热数学模型  

Transient heat-transfer mathematic model in twin-roll aluminum trip casting process

作　　者：彭成章[1] 

机构地区：[1]江西理工大学机电工程学院,江西赣州341000

出　　处：《轻合金加工技术》2006年第12期13-16,共4页Light Alloy Fabrication Technology

基　　金：国家"973"重点基础研究发展规划项目(G1999064906);湖南省教育厅一般项目(03C507)

摘　　要：采用拉格朗日随体坐标建立了铝双辊铸轧过程瞬态传热数学模型。在数学模型中考虑了金属凝固动力学条件和采用试验测定的辊/铝带坯界面接触换热系数边界条件,用有限差分方法对控制方程进行了数值求解,并由现场测试数据验证了传热数学模型的正确性。A transient heat-transfer mathematic model in twin-roll aluminum trip casting process was developed using a Lagrangian coordinate system. Solidifying dynamic condition was considered and practical coefficient of interfacial heat-transfer between roll and aluminum strip measured by experiment was adopted in the model, the governing equations for the rull and the strip were solved by means of a usual finite difference method, then, the correctness of the model was examined by experiment results.

关 键 词：双辊铸轧 数学模型 铝带坯 

分 类 号：TG339[金属学及工艺—金属压力加工]