锻压技术

堆拉系数匹配对SCR7000铜杆粗轧过程的影响

英文标题：Influence of stacking coefficient matching on rough rolling process of SCR7000 copper rod production line

单位：1.辽宁工程技术大学材料科学与工程学院 2. 中国科学院金属研究所师昌绪先进材料创新中心 3.常州同泰高导新材料有限公司

分类号：TG335

出版年,卷(期):页码：2025,50(7):112-119

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 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.

基金项目：

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

参考文献：

[1]袁孚胜, 王彤彤. 我国铜杆线材市场现状及发展趋势[J]. 有色冶金设计与研究, 2022, 43(1): 16-19,23.

Yuan F S, Wang T T. Current situation and development trend of copper rod and wire rod market in China[J]. Design and Research of Nonferrous Metallurgy, 2022, 43(1): 16-19,23.

[2]郑莲宝, 徐勇, 王松伟, 等. 水平连铸铜板坯冷轧带材表面缺陷问题研究[J]. 铜业工程, 2023,179(1): 57-65.

Zheng L B, Xu Y, Wang S W, et al. Surface defects of cold rolled stripof horizontal continuous casting copper slab[J]. Copper Engineering, 2023,179(1): 57-65.

[3]周朝晖,伍锡皇,吴才权.SCR9000铜杆生产线铸轮喷砂机的研制和应用[J].铜业工程,2023(5):84-87.

Zhou C H, Wu X H, Wu C Q. Manufacture and application of casting wheel sand blasting machine for SCR9000 copper rod production line[J]. Copper Engineering, 2023(5): 84-87.

[4]刘青松, 张龙, 沈潮, 等. 张力轧制对大规格棒材心部组织致密性的影响[J]. 机械工程材料, 2016, 40(9): 77-81.

Liu Q S, Zhang L, Shen C, et al. Effect of tension rolling on internal compactness of big size bars[J]. Materials for Mechanical Engineering, 2016, 40(9): 77-81.

[5]于康康，王松伟，宋鸿武，等.紫铜板带水平连铸坯“阴阳带”问题探析[J].铜业工程,2023(1):66-74.

Yu K K，Wang S W，Song H W，et al. "YinYang Strip" problem of red copper strip horizontal continuous casting bille[J].Copper Engineering,2023(1):66-74.

[6]张宏涛. 提高SCR生产线铜杆过线成功率的措施[J]. 世界有色金属, 2021 (13): 134-135.

Zhang H T. Measures to improve the success rate of copper rods in SCR production line[J]. World Nonferrous Metals, 2021 (13): 134-135.

[7]洪慧平.连轧37Mn5钢棒材有限元模拟及孔型系统优化[J]. 计算机辅助工程，2013, 22(1): 418-421.

Hong H P. Finite element simulation of continuous rolling of 37Mn5 steel round bar and roll pass sequence optimization [J]. Computer Aided Engineering, 2013, 22(1): 418-421.

[8]钟方友,余琪,陈飞龙.铜杆热连轧过程轧辊粘铜机理研究[J]. 中国金属通报,2021(10):145-146.

Zhong F Y, Yu Q, Chen F L. Research on coppersticking mechanism of roll in hot continuous rolling of copper rod[J]. China Metal Bulletin,2021(10):145-146.

[9]刘永.大尺度圆钢热轧成型缺陷控制数值模拟研究[D]. 秦皇岛：燕山大学，2012.

Liu Y. Research on Numerical Simulation of the Hot Rolling Deformationdefects Control in Largescale Round Bar[D]. Qinhuangdao: Yanshan University, 2012.

[10]刘洋,彭艳,姬会爽,等.SCR连铸连轧铜杆表面铜粉形成机理及其质量控制[J]. 塑性工程学报,2021,28(7):97-103.

Liu Y, Peng Y, Ji H S, et al. Formation mechanism and quality control of copper powder on surface of copper rod in scr continuous casting and rolling[J]. Journal of Plasticity Engineering,2021,28(7):97-103.

[11]Natalia V,Elmira F,Alexandr K. Big data as a tool for building a predictive model of mill roll wear[J]. Symmetry, 2021, 13(5): 859-859.

[12]刘佩明,崔风平,徐宝杰.棒材自由规格减定径轧制技术[J]. 山东冶金,2003(4):39-40.

Liu P M, Cui F P, Xu B J. Schedule free and reducing sizing mill rolling of bar[J]. Shandong Metallurgy,2003(4):39-40.

[13]王会廷,章静,阎军.张力对减定径轧制中轧件变形影响的有限元分析[J]. 钢铁研究,2008(1):26-29.

Wang H T, Zhang J, Yan J. Finite element analysis of tension effect on deformation in the RSM rolling process[J]. Iron and Steel Research,2008(1):26-29.

[14]张春光,杨霄,陈林,等.大规格高速线材双机架减定径轧制变形分析及张力对尺寸精度的影响[J]. 塑性工程学报,2021,28(8):127-132.

Zhang C G, Yang X, Chen L, et al. Deformation analysis and effect of tension on dimensional accuracy of largesize highspeed wire rod during twostand reducing and sizing rolling[J]. Journal of Plastic Engineering,2021,28(8):127-132.

[15]胡睿,隋凤利,奚铁,等.张力对连轧角钢轧制变形影响的有限元分析[J]. 安徽工业大学学报(自然科学版),2012,29(2):116-120.

Hu R, Sui F L, Xi T, et al. Finite element analysis about tension effect on deformation during continuous rolling of angle steel[J]. Journal of Anhui University of Technology(Natural Science),2012,29(2):116-120.

[16]Sygut P,KlimeckaTatar D,Borkowski S.Theoretical analysis of the influence of longitudinal stress changes on band dimensions during continuous rolling process[J]. Archives of Metallurgy and Materials,2016,61(1):183-188.

[17]Nepryakhin Sergey O，Vodopyanova Olga V. Research into the effect of speed mismatch during continuous rolling on the process parameters[J]. Solid State Phenomena,2021,316:208-213.

[18]宋宇,张丰收,皇涛,等.基于高温磨损的H13热作模具钢磨损规律和模型研究[J].塑性工程学报,2018,25(4):187-193.

Song Y, Zhang F S, Huang T, et al. Study on wear law and model of H13 hot working die steel based on hightemperature wear[J].Journal of Plastic Engineering,2018,25(4):187-193.

[19]Liu Y, Peng Y, Qu X B. Mechanism of and key technologies for copper bonding in the hot rolling of SCR continuous casting and rolling[J]. Applied Sciences, 2021, 11(22): 11023.

[20]Li X B, Jiang G M, Di J P, et al. Effect of cryogenic rolling on the microstructural evolution and mechanical properties of pure copper sheet[J]. Materials Science and Engineering: A, 2020, 772: 138811.

服务与反馈：

【文章下载】【加入收藏】