Transactions of Materials and Heat Treatment

Title：Influence of stacking coefficient matching on rough rolling process of SCR7000 copper rod production line

Authors： Yang Zhi1 Liu Tong1 Cheng Ming2 Zhao Xinming2 Shao Jun3 Han Mingqi3

Unit： 1.College of Materials Science and Engineering Liaoning Technical University 2.Shi-Changxu Innovation Center for Advanced Materials Institute of Metal Research Chinese Academy of Sciences 3.Changzhou Tongtai High Conductivity New Materials Limited Company

KeyWords： copper rod processing stacking coefficient rough rolling rolling stability rolling force

ClassificationCode：TG335

year,vol(issue):pagenumber：2025,50(7):112-119

Abstract：

At present, SCR continuous casting and rolling method is widely used in the field of copper rod processing. Therefore, for the unstable phenomenon of rolling process often occurred in the production site, a finite element model for rough rolling in the hot continuous rolling of Φ8 mm copper rod was established by software DEFORM. Then, the deformation laws of copper rod during the rough rolling process was analyzed, and the influence of inter-stand stacking coefficients on the stability of rolling process was revealed. The results show that the mismatched stacking coefficients between stands during the rolling process cause the rolled workpiece to be subjected to greater stacking force, which significantly affects the stability of rolling process and the product quality. The width of rolled workpiece decreases with the increasing of stacking coefficient. The rolling force is positively correlated with the stacking coefficient of the pass, and negatively correlated with that of the preceding pass. The rolling experiments were conducted by changing the rolling speed ratio and re-matching the stacking coefficient. The results indicate that the motor torque and load are reduced by about 2%-3%, and the copper powder content of processed copper rod is reduced by about 6.8%, which improves the stability of production line and the quality of finished product.

Funds：

作者简介：杨志（1973-），男，硕士，副教授 E-mail：yangzhi279@163.com 通信作者：程明（1976-），男，博士，正高级工程师 E-mail：mcheng@imr.ac.cn

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