新型Cu基合金触头在低压继电器上的应用  

Application of New Copper Base Alloy Contact in the Low Voltage Relay

作　　者：黄鑫[1] 张晓燕[1] 高红选 黄丹[1] 巩向鹏 

机构地区：[1]贵州大学材料与冶金学院

出　　处：《特种铸造及有色合金》2015年第5期556-558,共3页Special Casting & Nonferrous Alloys

基　　金：贵州省科技厅社发攻关项目(2013-3124)

摘　　要：研究了新型Cu基合金触头材料(CSC材料)在T90通用电磁继电器和JQ-100H接触器上的应用。结果表明,在规定的阻性负载和寿命试验前后,CSC材料触头的接触电阻满足要求,电气寿命有所延长。通过微观组织、成分分析可知,颗粒状的Mo质点相、触头表面凹坑处Co的富集、Ni3Ti相在基体上的均匀分布是该材料触头电学性能优越的主要原因,也是其寿命提高的主要原因。且与AgCdO触头相比,该触头材料综合性能良好、成本较低,对环境无污染。Application of new copper base alloy contact material （CSC material）in T90 general electro-magnetic relay and JQ-100H contactor was described.Results show that before and after impedance load and life test,the contact resistance of contacts CSC materials can meet the requirements and its electrical life is increased relatively.Microstructure composition analysis shows that the excellent electric per-formance and improvement of service life of the contact materials are attributed to the existence of the single-phase Mo granular particle,enrichment of Co in the pit of contact surface and uniform distribution of Ni3 Ti in the matrix.And compared with AgCdO contact,its production cost is lower with pollution free to the environment based on ensuring the good comprehensive properties of the contact.

关 键 词：Cu基合金触头 接触电阻 电气寿命 

分 类 号：TG146.11[一般工业技术—材料科学与工程]