银含量对铜银合金接触线坯抗拉强度和导电性能的影响  

The Effect of Silver Content on Tensile Strength and Electrical Conductivity of Copper-silver Alloy Contact Wire Blank

作　　者：袁杰[1] 管桂生[1] 孙凯[1] 

机构地区：[1]云南铜业股份有限公司,云南昆明650102

出　　处：《云南冶金》2016年第4期62-65,77,共5页Yunnan Metallurgy

摘　　要：研究了连铸连轧铜银合金接触线的力学性能和导电性能,分析了银含量对铜银合金接触线坯抗拉强度和导电性能的影响规律,并优化得到较优的银含量。试验结果表明:添加银后,铜合金的抗拉强度增加,电阻率增加。随着银含量由894.4 g/t增加至1 250 g/t,铜银合金抗拉强度由236.52 MPa增加至245.73 MPa,铜银合金电阻率由0.01706Ω·mm^2/m增加至0.01723Ω·mm^2/m。综合考虑,认为银含量为997.9 g/t时铜银合金综合性能最佳,其抗拉强度为241.45 MPa,电阻率为0.0171Ω·mm^2/m。The mechanical property and electrical conductivity of the copper - silver alloy contact wire by continuous casting and rolling is studied, and the influence rule of the silver content on the tensile strength and electrieal conductivity of the copper - silver alloy contact wire blank is analyzed, so the optimal and better silver content can be got. The test results show： the tensile strength and the specific resistance of copper alloy is increased after silver added. The tensile strength of eopper- silver alloy is increased from 236. 52MPa to 245.73MPa, the specific resistance of copper-silver alloy is increased from 0. 01706Ω mm2/m to 0. 01723Ω mm2/m along with the sil- ver content increased from 894. 4g/t to 1250g/t. The comprehensive performance of copper-silver alloy is the best when the silver content is 997.9g/t by taken a comprehensive consideration, which tensile strength is 241.45MPa, the specific resistance is 0. 0171Ω mm2/m.

关 键 词：铜银合金接触线 连铸连轧 抗拉强度 电阻率 

分 类 号：TG335.63[金属学及工艺—金属压力加工]