20MnSi钢筋热连轧温度场的热力耦合分析  

Thermo-mechanical Analysis on Temperature Field for the Hot Rolling Process of 20MnSi

作　　者：曹淑敏[1] 陈其伟[1] 朱国辉[1] 完卫国[2] 

机构地区：[1]安徽工业大学材料科学与工程学院,安徽马鞍山243002 [2]马鞍山钢铁股份有限公司技术中心,安徽马鞍山243000

出　　处：《安徽工业大学学报（自然科学版）》2011年第4期355-357,共3页Journal of Anhui University of Technology（Natural Science）

基　　金：国家科技支撑项目(2007DAE30B02)

摘　　要：采用三维弹塑性有限元方法建立Ф16 mm 20MnSi钢筋在16个道次热连轧过程中的热力耦合分析模型,在方坯初始温度为1 050,1 150℃的条件下对轧件轧制过程的温度变化进行模拟与分析,切分轧制过程和成品带肋轧制过程进行网格再造以解决网格畸变问题。轧件中间断面的温度变化与实际轧制过程的温度测试取得较大的一致,说明建立的模型是有效的。A coupled thermo-mechanical model for calculating the laws of temperature field evolution has been developed on sixteen-pass hot continuous rolling of 20MnSi steel using 3D elastic-plastic FEM.Different initial temperatures of 1 050,1 150 ℃ were chosen to simulate and analyze the temperature field during rolling process.Grid remeshing technique was used to prevent the bad results caused by the gird distortion during splitting rolling process.The surface temperatures calculated have good agreements with the ones measured in an actual rolling process,which indicates the model is effective in simulating the temperature field.

关 键 词：20MnSi 热连轧 切分 

分 类 号：TG335.1[金属学及工艺—金属压力加工]