带钢热轧过程中温度演变的数值模拟和实验研究  

NUMERICAL SIMULATION AND EXPERIMENTAL VERI- FICATION OF TEMPERATURE DISTRIBUTION IN HOT-ROLLING STRIP STEEL

作　　者：兰勇军[1] 陈祥永[1] 黄成江[1] 李殿中[1] 李依依 

机构地区：[1]中国科学院金属研究所,沈阳110016

出　　处：《金属学报》2001年第1期99-103,共5页Acta Metallurgica Sinica

基　　金：国家973超级钢项目!G1998061512

摘　　要：采用三维大变形弹塑性有限元法，耦合温度场和应力、应变场，应用ＡＢＱＵＳ软件的二次开发用户子程序模块，建立了热轧过程中的界面换热模型，对热轧ＩＦ带钢进行了温度场的数值模拟.　开发了热轧过程中的测温技术，在实验轧机上对带钢内部温度变化进行在线测量，以测量结果修正了界面换热系数模型．利用所建立的传热模型对带钢热轧过程进行了模拟计算，考虑了轧制过程压下量、初始变形温度对温度场变化的影响，结果表明模拟与实测的温度场基本吻合．Coupling of thermal and mechanical fields through 3D FEM for large elastic and plastic deformation action, the hot-rolling process of IF steel strip was simulated. By adopting user subroutines of ABAQUS software, an interfacial heat transfer model was developed. On-line internal temperature measurement of strip steel was executed on a lab mill, and interfacial heat transfer coefficient (IHTC) was improved. After considering the effects of strain, strain rate and entrance temperature on the temperature evolution, the simulated temperature field matchs well with the measured one.

关 键 词：温度场 有限元模拟 测温技术 热轧 带钢 

分 类 号：TG335.56[金属学及工艺—金属压力加工] O242.1[理学—计算数学]