第48卷第6期Vol.48No.6FORGING&STAMPINGTECHNOLOGY2023年6月Jun.2023■■■■■■■■■■■■■■■■■■挤压与拉拔Cu-Ni-Si合金连续挤压短流程制造工艺李明亮1,林兆擎1,陈中玉1,朱璟1,刘平2,刘新宽2(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)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℃×30min,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252HV、导电率为23.20MS·m-1、抗拉强度为810MPa、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。关键词:Cu-Ni-Si合金;连续挤压;冷轧;时效;导电率DOI:10.13330/j.issn.1000-3940.2023.06.013中图分类号:TG335.5文献标志码:A文章编号:1000-3940(2023)06-0091-05ContinuousextrusionmanufacturingprocesswithshortprocessforCu-Ni-SialloyLiMingliang1,LinZhaoqin1,ChenZhongyu1,ZhuJing1,LiuPing2,LiuXinkuan2(1.CollegeofAutomobileandTransportation,YanchengIndustrialVocationalandTechnicalCollege,Yancheng224001,China;2.SchoolofMaterialsandChemistry,UniversityofShanghaiforScienceandTechnology,Shanghai200093,China)Abstract:ThetraditionalproductionprocessofCu-Ni-Sialloyleadframstriphaslongprocess,highcostandlowmaterialutilizationrate,andtheproductiseasytohavedefects.Thecontinuousextrusionmanufacturingprocesswithshortprocesswasusedinsteadofthetraditionalproductionprocess.Theinfluencesofagingtemperatureandagingtimeontheconductivity,hardness,tensilestrengthandelongationofCu-Ni-Sialloyaftercontinuousextrusionandcoldrollingwereinvestigated,andtheoptimumagingprocessofCu-Ni-Sialloystripaftercontinu-ousextrusionandcoldrollingwasdeterminedtobe400℃for30min.Then,thecopperstripafteragingtreatmentat400℃×30minandroll-ingat70%reductionratewasalsostudied.Theresultsshowthatthehardnessof...
