中厚板残余应变的工程计算方法  

Engineering Calculation Method of Residual Strain for Plate Rolling Process

作　　者：胡贤磊[1] 赵忠[1] 邱红雷[1] 刘相华[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,辽宁沈阳110004

出　　处：《东北大学学报（自然科学版）》2005年第5期456-459,共4页Journal of Northeastern University(Natural Science)

基　　金：国家自然科学基金资助项目(50104004);国家'十五'重大装备研制项目(ZZ0113A040201)

摘　　要：对于合金元素较多的中厚板,如果采用TMCP轧制工艺,残余应变将使得轧制力的计算误差达到30%以上·分析常规变形抗力模型,将温度作为影响变形抗力模型的关键因素,并结合大量实验数据,得出残余应变的大致温度影响区间,并分析残余应变在该温度区间对中厚板变形抗力的影响,然后提出残余应变的建模方法和工程计算模型·通过在线应用证明,该模型大幅度提高了变形抗力计算精度,使得计算误差控制在7%以内·For the plates containing not a few alloying elements the calculation error of rolling force sometimes reaches 30% or higher if the TMCP rolling regime is adopted. Based on the conventional model of resistance to deformation, the temperature is taken as a key influencing factor on the resistance to deformation, thus obtaining the temperature range affecting the residual strain. Then, the influence of residual strain on rolling force is analyzed so as to develop a relevant mathematical model for engineering calculation. Its on-line applications in Shougang Plate Rolling Mill proved that the resistance to deformation is calculated to the accuracy of 7% with the new model used.

关 键 词：中厚板 变形抗力 残余应变 轧制力 自学习 

分 类 号：TG335[金属学及工艺—金属压力加工]