锻压技术

Cu-Ni-Si合金连续挤压短流程制造工艺挤压与拉拔

英文标题：Continuous extrusion manufacturing process with short process for Cu-Ni-Si alloy

单位：（1.盐城工业职业技术学院汽车与交通学院江苏盐城 224001 2.上海理工大学材料与化学学院上海 200093）

关键词：Cu-Ni-Si合金连续挤压冷轧时效导电率

分类号：TG335.5

出版年,卷(期):页码：2023,48(6):91-95

摘要：

Cu-Ni-Si合金引线框架带材的传统生产工艺流程长、成本高、材料利用率低，且产品易产生缺陷，利用连续挤压短流程制造工艺代替传统生产工艺，探究了时效温度和时效时间对Cu-Ni-Si合金连续挤压与冷轧后的导电率、硬度、抗拉强度和伸长率的影响，确定了Cu-Ni-Si合金连续挤压与冷轧后铜带的最佳时效处理工艺为400 ℃×30 min，并对采用该时效处理和经70%压下率轧制后的铜带进行了研究。结果表明：铜带的硬度为252 HV、导电率为23.20 MS·m-1、抗拉强度为810 MPa、伸长率为5.3%，均达到了引线框架带材所要求的技术指标，验证了该时效处理工艺的合理性和连续挤压短流程工艺制造Cu-Ni-Si合金引线框带材的可行性。

The traditional production process of Cu-Ni-Si alloy lead fram strip has long process,high cost and low material utilization rate,and the product is easy to have defects. The continuous extrusion manufacturing process with short process was used instead of the traditional production process. The influences of aging temperature and aging time on the conductivity, hardness, tensile strength and elongation of Cu-Ni-Si alloy after continuous extrusion and cold rolling were investigated, and the optimum aging process of Cu-Ni-Si alloy strip after continuous extrusion and cold rolling was determined to be 400 ℃ for 30 min. Then, the copper strip after aging treatment at 400 ℃×30 min and rolling at 70% reduction rate was also studied. The results show that the hardness of copper strip is 252 HV, the conductivity is 23.20 MS·m-1, the tensile strength is 810 MPa and the elongation is 5.3%, which meet the requirements of lead frame strip. The suitability of the aging process and the feasibility of the Cu-Ni-Si alloy lead frame strip manufactured by continuous extrusion process with short process are verified.

基金项目：

江苏省苏北科技专项（SZ-YC2019064）; 校级跨界团队基金(ygykj202103)

李明亮（1976-），男，硕士，副教授

参考文献：

［1］侯绿林,尹振兴,甘春雷,等.引线框架用Cu-Ni-Si合金及其制备加工工艺的研究进展
［J］.材料研究与应用，2020，14(1):59-65.

Hou L L, Yin Z X, Gan C L, et al. Research progress of Cu-Ni-Si alloy for lead frame and its preparation and processing technology
［J］. Materials Research and Application, 2020, 14(1):59-65.

［2］张英,陆萌萌,胡艳艳,等.引线框架用Cu-Ni-Si合金的发展及研究现状
［J］.上海有色金属，2014，35(4):177-182.

Zhang Y, Lu M M, Hu Y Y, et al. Development and study of Cu-Ni-Si alloy for lead frame
［J］. Shanghai Nonferrous Metals, 2014, 35(4):177-182.

［3］孙海洋,闫志勇,樊志新.KFC铜合金引线框架带材的连续挤压制造技术
［J］.现代制造工程，2011，375(12):83-87.

Sun H Y, Yan Z Y, Fan Z X. Continual extrusion manufacturing technology of KFC copper alloy lead frame strip
［J］.Modern Manufacture Engineering, 2011,375(12):,12:83-87.

［4］刘平，赵冬梅，田保红.高性能铜合金及其加工技术
［M］.北京:冶金工业出版社，2005.

Liu P,Zhao D M,Tian B H. High Performance Copper Alloy and Its Processing Technology
［M］.Beijing:Metallurgical Industry Press,2005.

［5］张涛.稀土添加和时效处理对Cu-Ni-Si合金组织与性能的影响
［D］.济南：山东大学，2017.

Zhang T. Effects of Rare Earth and Aging Treatment on Microstructure and Properties of Cu-Ni-Si Alloys
［D］. Ji′nan: Shandong University, 2017.

［6］李明亮,刘平,刘新宽，等.时效处理对冷轧C194铜合金性能的影响
［J］.特种铸造及有色合金，2017，37(4)：457-460.

Li M L, Liu P, Liu X K, et al. Effects of aging treatment on properties of the cold rolling C194 copper alloy
［J］. Special Casting & Nonferrous Alloys,2017，37(4)：457-460.

［7］马行驰,黄金亮,贾淑果,等.时效对列车接触网导线用 Cu-Ag-Zr 合金性能的影响
［J］.热加工工艺,2004, (8): 35-37.

Ma X C, Huang J L, Jia S G, et al. Effect of aging on property of Cu-Ag-Zr alloy for contact wire line used in catenary of rail way
［J］. Hot Working Technology, 2004, (8): 35-37.

［8］胡赓祥,蔡珣,戎咏华.材料科学基础
［M］. 第3版.上海:上海交通大学出版社,2010.

Hu G X, Cai X, Rong Y H. Fundamentals of Materials Science
［M］. 3nd Eidition.Shanghai: Shanghai Jiao Tong University Press, 2010.

［9］孙健,刘平,刘新宽,等.Cu-Ni-Si合金连续挤压过程中的组织演变及性能
［J］.中国有色金属学报,2014,24(4):943-948.

Sun J，Liu P，Liu X K，et al.Microstructure evolution and properties of Cu-Ni-Si alloy during continuous extrusion process
［J］.The Chinese Journal of Nonferrous Metals,2014,24(4):943-948.

［10］张毅.微合金化高性能Cu-Ni-Si系引线框架材料的研究
［D］.西安:西安理工大学,2009.

Zhang Y. Research on Microalloyed Cu-Ni-Si Alloy with High Performance for Lead Frame
［D］. Xi′an: Xi′an University of Technology, 2009.

［11］张凌峰,刘平,康布熙,等.时效对Cu-1.0Ni-0.25Si-0.10Zn合金硬度与导电率的影响
［J］.洛阳工学院学报,2002,23(3):7-9,16.

Zhang L F,Liu P,Kang B X, et al.Effect of aging on hardness and electrical conductivity of Cu-1.0Ni-0.25Si-0.10Zn alloy
［J］. Journal of Luoyang Institute of Technology, 2002,23(3):7-9,16.

［12］陈志龙，顾彩香，任祥华. 冷变形对Cu-Ni-Si合金时效性能的影响
［J］.电工材料，2016，145（4）：7-12.

Chen Z L,Gu C X,Ken X H. Effects of cold deformation on aging performance of Cu-Ni-Si alloy
［J］.Electrical Engineering Materials,2016,145(4):7-12.

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