棒材连轧过程变形区内外温度场分析  

Temperature Field Analysis of the Bar in and out the Deformation Zone during continuous Rolling by FEM

作　　者：李长生[1] 孙雪坤[1] 刘相华[1] 王国栋[1] 

机构地区：[1]东北大学轧制技术及连轧自动化国家重点实验室,沈阳110006

出　　处：《物理测试》1999年第6期25-28,共4页Physics Examination and Testing

基　　金：国家95重点科技攻关项目(编号95-524-02-04)

摘　　要：采用有限元方法分析了棒材连续热轧中变形区及出变形区时轧件横断面温度场。可以看出变形区内热接触作用对轧件表面温度有较大的影响,使得温度梯度较大;同时轧件出变形区后温度梯度逐渐减小。这一结果对于指导分析轧件的微观组织变化有重要意义。The temperature field of the bar in and out the deformation zone during rolling is simulated by FEM. It has been founded that the temperature gradient is great in the deformation, in which the conduction has great effects. While as the temperature gradient is small out the deformation. The results by FEM are important to analyses the microstructure of the rod studied.

关 键 词：温度场 有限元 棒材 连轧 轧制 

分 类 号：TG335.62[金属学及工艺—金属压力加工]