COPPER ALLOY TROLLEY WIRE AND METHOD OF MANUFACTURING COPPER ALLOY TROLLEY WIRE

摘要

PROBLEM TO BE SOLVED: To provide a copper alloy trolley wire capable of preventing crystal particle diameter from coarsening and excellent in strength, conductivity, abrasion property and fatigue property even when a solution treatment is conducted in a copper alloy containing Co, P and Sn and a method of manufacturing the copper alloy trolley wire.SOLUTION: A copper alloy trolley wire has a composition containing Co;0.12 mass% to 0.40 mass%, P;0.04 mass% to 0.16 mass%, Sn;0.01 mass% to 0.50 mass% and further one or more kind of B, Cr, Zr and the balance inevitable impurities, and satisfies (1) Formula::1≤(X/5)+(Y/50)+(Z/100) and (2) Formula :X+Y+Z≤1000, where B content is X (massppm), Cr content is Y (massppm) and Zr content is Z (massppm).SELECTED DRAWING: None