| 摘要 |
PROBLEM TO BE SOLVED: To provide a contact wire of an electric traction in an electric railway. SOLUTION: The contact wire is made of (1) a copper alloy containing 0.05-0.8% Cr, 0.005-0.2% Zr, 0.003-0.3% Al, and the remaining components of Cu and inevitable impurity, or (2) a copper alloy containing 0.05-0.8% Cr, 0.005-0.2% Zr, 0.003-0.3% Al, total 0.05-0.4% of one or two of Fe, Ni, and Co, 0.003-0.04% P, and the remaining components of Cu and inevitable impurity, or a copper alloy containing the components of the copper alloy of (1) or (2), total 0.01-2% of one or two of Ag, Zn, Mg, Si, and Ti, and the remaining components of Cu and inevitable impurity. COPYRIGHT: (C)2005,JPO&NCIPI
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