| 摘要 |
PROBLEM TO BE SOLVED: To provide an electroconductive contact member improving the adhesiveness between a base material and a coating and further ensuring required temperature stability, surface hardness, good sliding characteristics and stable contact resistance, particularly an electroconductive metallic band for manufacturing a connector. SOLUTION: The coating in copper and a copper alloy is composed of a tin-silver alloy containing silver in the ratio of 1 to 3.8 wt.%, by which its adhesive strength is improved, and further, its temperature stability is increased. As the copper alloy in the base, the one containing, by weight, 1 to 4% Ni, 0.08 to 1% Si, <1% tin and <2% zinc is desirable, and it is also effective that the alloy further contains 0.02 to 0.5% silver, 0.005 to 0.05% Zr, <0.1% Mg, <0.05% P and <0.1% Fe. |
