非对称因素对热轧纯钛中厚板出口楔形的影响  

Influence of Asymmetric Factors on Outlet Wedge Shape of Hot Rolled Pure Titanium Medium and Thick Plate

作　　者：于辉[1,2] 李伟[1] 黄兆猛[1] 王三众 刘利刚[1] Yu Hui;Li Wei;Huang Zhaomeng;Wang Sanzhong;Liu Ligang(College of Mechanical Engineering,Yanshan University,Qinhuangdao 066004,China;National Engineering Research Center for Equipment and Technology of Cold Steel Rolling,Yanshan University,Qinhuangdao 066004,China)

机构地区：[1]燕山大学机械工程学院,河北秦皇岛066004 [2]燕山大学国家冷轧板带工程技术研究中心,河北秦皇岛066004

出　　处：《稀有金属材料与工程》2020年第7期2220-2228,共9页Rare Metal Materials and Engineering

基　　金：Special Funds for the Development of Civil-Military Integration Industry in Hebei Province;Natural Science Foundation of Hebei Province of China(E2016203217)。

摘　　要：针对纯钛中厚板热轧过程中可能出现的轧件断面楔形问题,结合四辊轧机设备和工艺的非对称特点,基于影响函数法建立双悬臂梁辊系弹性变形模型,研究对中误差、机架刚度差、坯料楔形、横向温差等非对称因素对轧件断面楔形的影响。结果表明:对中误差、机架刚度差、横向温差对出口楔形的影响随着板宽和压下量的增大而增大,入口楔形对出口楔形的影响随着板宽增大和压下量的减小而增大。Aiming at the possible wedge shape problem of rolling section in the hot rolling process of pure titanium medium and thick plate,combined with the asymmetric characteristics of four-high rolling mill equipment and technology,the elastic deformation model of double cantilever beam roll system was established based on the influence function method.The influence of asymmetrical factors such as the centring error,stiffness difference of mill stand,wedge shape of billet,transverse temperature difference of workpiece and other asymmetric deformation parameters on rolling section wedge shape was investigated.The results indicate that the effect of the above influence factors increases with the increase of the plate width and rolling reduction.The influence of the inlet wedge shape on the outlet wedge shape increases with the increase of the plate width and the decrease of the rolling reduction.

关 键 词：影响函数法 纯钛 热轧 中厚板 楔形预测 

分 类 号：TG335.11[金属学及工艺—金属压力加工] TG146.23[一般工业技术—材料科学与工程]