数值模拟温度场在中厚板轧后控冷过程的应用  

Application of Numerically Simulated of Temperature Field to Controlled Cooling of Plate

作　　者：刘华强[1] 唐荻[1] 杨荃[1] 余伟[1] 王城镇[2] 

机构地区：[1]北京科技大学高效轧制国家工程研究中心,北京100083 [2]济南钢铁公司技术中心,山东济南250101

出　　处：《钢铁》2008年第6期56-60,共5页Iron and Steel

基　　金：国家自然科学基金资助项目(50575022)

摘　　要：介绍了为国内某中厚板厂设计开发的轧后加速冷却在线使用的控冷数学模型,包括空冷和水冷换热系数模型等,该控冷模型采用有限差分法计算钢板在冷却过程中沿钢板厚度和宽度方向的温度场分布。根据本模型计算轧后控冷温度场及进行控冷工艺参数的设定值,通过在线使用证明该控冷模型预报精度较高,与实测值偏差小,控冷钢板的板形和性能均达到设计要求,能够满足现场实际生产的需要。Abstract： A mathematical model of controlled cooling of plate is introduced,including models of heat transfer during air cooling and water cooling. Temperature distribution along the thickness and width of plate is calculated with fi- nite difference method. The temperature predicted by this mathematical model is accurate as confirmed by online measured temperature. Both the shape and the mechanical properties of the plate cooled with the model set regime satisfy the requirements.

关 键 词：数值模拟 控制冷却 有限差分法 中厚板 

分 类 号：TG335[金属学及工艺—金属压力加工]