摘要
针对轧制过程中轧辊的弹性变形和轧辊与轧件间的相互作用,通过对四辊轧机辊系变形和受力状况的分析,从理论上详细推导了直观的有载辊缝形状函数,明确了有载辊缝形状函数与相关因素的对应关系。同时,为了验证辊缝解析模型的准确性,采用该模型对某铝热连轧机的精轧末机架的出口板凸度进行了理论计算,并与在线测得数据进行比较,结果表明:该模型计算精度高,相对误差较小(低于15%)。该模型不但为板形的控制以及轧制板凸度的建模提供了理论基础,还为预报板形、研究板带截面上任一点的板凸度提供了方便。
This paper was to discuss the elastic deformation of rollers and interaction between work rollers and the strip during the roller milling process of a 4--h mill,by analyzing stress and deformation of rollers,put forwards a concise and practicable mathematic model of roller gap＇s shape, which resulted from some relevant factors, such as rolling pressure, bending force and so on. At the same time, to validate the accuracy of the model, the theoretical calculation of the crown of the strip of a aluminum hot tandem rolling mill was made by this model and the relative crown was practically measured on--line. The application results show that the model is precise, and the error between the computation and experimental results is narrower（less than 15 %）. This model can be afforded the elements for the control and academic elements on modeling of crown for a aluminum hot tandem rolling mill and can be used to forecast the strip＇s shape at the exit and convenience on studying crown on the strip.
出处
《中国机械工程》
EI
CAS
CSCD
北大核心
2007年第22期2752-2756,共5页
China Mechanical Engineering
基金
中南大学研究生创新基金资助项目(1343-76312)
关键词
四辊轧机
弹性变形
板凸度
数学模型
4-- h mill
elastic deformation
strip crown
mathematical model
