| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a high-conductivity high-strength copper alloy conductor which has high conductivity comparable to that of pure copper, has high strength which is higher than that of pure copper and is applicable for a trolley wire, and includes a solution-hardened copper alloy that can be manufactured by continuous casting and rolling, and to provide a trolley wire and a cable using the same, and a method for manufacturing the copper alloy conductor. Ž<P>SOLUTION: The copper alloy conductor has a conductivity of ≥80%IACS and is composed of a copper alloy material obtained by compounding 0.01-0.04 mass% of B with a copper base metal having oxygen content of ≤10 ppm, wherein crystal grains in a copper parent phase composing a crystal structure has an average grain size of ≤500 μm, and 70% or more of B and/or a B compound dispersed in the copper parent phase exists as microparticles with sizes of ≤3 μm. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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