| 摘要 |
PROBLEM TO BE SOLVED: To provide a copper alloy material in which high strength and high electric conductivity required for a trolley wire for an overhead contact wire, a cable conductor for apparatus or the like in recent years are made compatible, to provide a copper alloy conductor using the copper alloy material, and to provide a method for producing the copper alloy conductor. SOLUTION: Into a copper base material comprising by weight, 0.001 to 0.1% oxygen, >0.4 to 0.7% Sn as a first additional element and 0.01 to 0.4% of at least one kind of additional element having an affinity with oxygen higher than that of Sn as a second additional element are incorporated, and also, the total of the first additional element and the second additional element is controlled to the ratio of 0.41 to 0.8% so as to be a copper alloy material, and, using the copper alloy material, the copper alloy conductor having tensile strength of≥450 MPa and electric conductivity of≥60% is produced. COPYRIGHT: (C)2008,JPO&INPIT
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