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Title:
COPPER ALLOY TWISTED WIRE, MANUFACTURING METHOD THEREFOR, AND ELECTRICAL WIRE FOR AUTOMOBILE
Document Type and Number:
WIPO Patent Application WO/2015/129457
Kind Code:
A1
Abstract:
A cast material is formed that has a chemical composition which contains a total of 1.0-2.0 mass% inclusive of at least one additional element selected from the group consisting of Fe, Ti, Sn, Ag, Mg, Zn, Cr, and P, with the remainder comprising Cu and unavoidable impurities. A wrought material is formed by plastic working the cast material. An intermediate wire material is formed by wire drawing the wrought material. The intermediate wire material is annealed. A single wire material is formed by wire drawing the annealed intermediate wire material such that the degree of cold working is within a range of 77% or more and less than 99%. A twisted wire material is formed by twisting together a plurality of the single wire materials, and the twisted wire material undergoes heat processing. Thus, a copper alloy twisted wire is obtained.

Inventors:
KOBAYASHI HIROYUKI (JP)
Application Number:
PCT/JP2015/053714
Publication Date:
September 03, 2015
Filing Date:
February 11, 2015
Export Citation:
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Assignee:
AUTONETWORKS TECHNOLOGIES LTD (JP)
SUMITOMO WIRING SYSTEMS (JP)
SUMITOMO ELECTRIC INDUSTRIES (JP)
International Classes:
C22F1/08; C22C9/00; C22C9/02; C22C9/04; H01B1/02; H01B5/08; H01B7/00; H01B13/00; C22F1/00
Domestic Patent References:
WO2010084989A12010-07-29
Foreign References:
JP2001040439A2001-02-13
JP2000199042A2000-07-18
JPH11293431A1999-10-26
JP2005336510A2005-12-08
JP2014137950A2014-07-28
JP2014156617A2014-08-28
Attorney, Agent or Firm:
AICHI, Takahashi, Iwakura & Associates (JP)
Patent business corporation あいち international patent firm (JP)
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