摘要
SCR连铸连轧法目前在铜杆加工领域应用十分广泛。针对生产现场中常出现的轧制过程不稳定现象,基于DEFORM软件建立了Φ8 mm铜杆热连轧粗轧有限元模型,分析了铜杆粗轧过程中的变形规律以及机架间的堆拉系数对轧制过程稳定性的影响。结果表明,轧制过程中机架间的堆拉系数不匹配将使轧件受到较大堆力,严重影响轧制过程的稳定性及产品质量。轧件宽度随堆拉系数的增大而减小,轧制力与所在道次堆拉系数呈正相关趋势,与前道次机架的堆拉系数呈负相关趋势。通过改变轧制速比,重新匹配堆拉系数后进行轧制实验,结果表明,电机转矩及负荷降低约2%~3%,加工出铜杆后铜粉生成量降低约6.8%,提高了产线稳定性及成品质量。
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 ofΦ8 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 grea-ter stacking force,which significantly affects the stability of rolling process and the product quality.The width of rolled workpiece decrea-ses with the increasing of stacking coefficient.The rolling force is positively correlated with the stacking coefficient of the pass,and nega-tively correlated with that of the preceding pass.The rolling experiments were conducted by changing the rolling speed ratio and re-matc-hing the stacking coefficient.The results indicate that the motor torque and load are reduced by about 2%-3%,and the copper powder con-tent of processed copper rod is reduced by about 6.8%,which improves the stability of production line and the quality of finished product.
作者
杨志
刘通
程明
赵薪铭
邵俊
韩明奇
Yang Zhi;Liu Tong;Cheng Ming;Zhao Xinming;Shao Jun;Han Mingqi(College of Materials Science and Engineering,Liaoning Technical University,Fuxin 123000,China;Shi-Changxu Innovation Center for Advanced Materials,Institute of Metal Research,Chinese Academy of Sciences,Shenyang 110016,China;Changzhou Tongtai High Conductivity New Materials Limited Company,Changzhou 213105,China)
出处
《锻压技术》
北大核心
2025年第7期112-119,共8页
Forging & Stamping Technology
关键词
铜杆加工
堆拉系数
粗轧
轧制稳定性
轧制力
copper rod processing
stacking coefficient
rough rolling
rolling stability
rolling force
