成形工艺对紫铜电导率的影响  

Effect of Forming Technology on the Electrical Conductivity of Copper

作　　者：柳瑞清[1] 蔡薇[1] 陈辉煌[1] 

机构地区：[1]江西理工大学,江西赣州341000

出　　处：《铸造技术》2007年第1期103-104,共2页Foundry Technology

基　　金：江西省自然基金资助项目(550033)

摘　　要：针对采用废旧铜原料生产导电用铜排过程中出现的电导率大幅度降低的现象,对生产过程中的各个环节加以研究,从铸锭中杂质含量的控制及加工组织结构角度分析了半连续铸锭、挤压工艺与铁模铸锭、轧制成形工艺对制品电导率的影响。研究结果表明:铸锭中杂质的总含量及残留的磷是造成制品电导率降低的关键因素,不同成形工艺影响制品的组织结构和电导率。在熔铸过程中控制杂质含量,采用半连续铸锭和挤压法可生产出高电导率的导电铜排,且该法的生产周期短,成本低,具有最佳的经济效益。The electrical conductivity will significantly decrease when the copper scrap is used to manufacture copper bar. The effect of semi-continuous casting, extrusion process, iron-mold ingot and rolling processing on the electrical conductivity of copper bar was analyzed from the viewpoint of the inclusion control and structure. The results＇ show that the total impurity content and retained phosphorus are the key factors to decrease conductivity, and different forming methods affect the structure and conductivity of copper bar. The copper bar with high electrical conductivity can be produced by controlling impurity during the melting and casting process, using semi-continuous casting and extrusion, the method has a short production cycle, low cost and optimal economical benefit.

关 键 词：导电铜排 电导率 成形工艺 

分 类 号：TG249.9[金属学及工艺—铸造]