微量稀土对Cu-Ag接触线性能的影响  

The effects of trace rare-earth on the properties of Cu-Ag contact wire

作　　者：贾淑果[1] 刘平[2] 康布熙[2] 田保红[2] 郑茂盛[1] 周根树[1] 

机构地区：[1]西安交通大学材料学院,陕西西安710049 [2]河南科技大学材料学院,河南洛阳471039

出　　处：《功能材料》2004年第4期445-447,共3页Journal of Functional Materials

基　　金：国家高技术研究发展计划(863)资助项目(2002AA331110)

摘　　要：　接触线(又称电车线)是电气化铁路接触网的主要元件。随着电气化列车向高速、重载的发展,对接触线提出了高强度、高导电、耐高温等多方面性能上的更高要求。本文研究了稀土对电气化铁路用接触线Cu 0.1Ag的强度、硬度、导电性和耐高温性等的影响。结果表明:微量稀土元素的加入可以提高银铜接触线的强度、硬度和耐热性,强度可达470MPa,相对于银铜接触线提高了73MPa;而对银铜接触线的导电性影响很小。Contact wire or trolley wire was one of the most important component parts of electrified railway catenaries. With the development of electrified train to high-speed and heavy loading capacity, which demand high strength, high conductivity and high heat-resistance for contact wire. The effects of rare-earth on the properties (such as strength, hardness, conductivity and heat-resistance) of Cu-0.1Ag contact wire for electrified railway was studied. As result, it showed that the strength, hardness and heat-resistance of the Cu-Ag contact wire were increased, tensile strength was enhanced to about 470MPa that was increased 73MPa compared with Cu-Ag contact wire, but the effect to conductivity was very little.

关 键 词：银铜接触线 电气化铁路 稀土 高强高导 

分 类 号：TG146.1[一般工业技术—材料科学与工程] TG144[金属学及工艺—金属材料]