Title:
COPPER ALLOY WIRE FOR ELECTRICAL/ELECTRONIC COMPONENTS
Document Type and Number:
WIPO Patent Application WO/2017/169910
Kind Code:
A1
Abstract:
This copper alloy wire for electrical/electronic components contains 0.15-0.60% by mass of Cr, 0.01-0.20% by mass of Si, and 0.005-0.30% by mass of Ti with the remainder consisting of Cu and unavoidable impurities, and comprises a deposit of a Cr-containing intermetallic compound. The copper alloy wire for electrical/electronic components is characterized by having a conductivity of not less than 65% IACS, satisfying the formulas (1) and (2), having a longitudinal bow of not more than 20 mm, and having a stress relaxation rate of not more than 15% as determined in a 90-degree direction with respect to the rolling direction of the copper alloy wire after heating at 150ºC for 1000 hours. kb0.1T ≥ 450 MPa...(1) 15% ≤ {(kb0.1T - kb0.1L)/kb0.1L} × 100 ≤ 50%...(2) Where kb0.1L is the spring limit value of the copper alloy wire in a 0-degree direction with respect to the rolling direction, and kb0.1T is the spring limit value of the copper alloy wire in the 90-degree direction with respect to the rolling direction.
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Inventors:
SUMINO YUYA
Application Number:
PCT/JP2017/010952
Publication Date:
October 05, 2017
Filing Date:
March 17, 2017
Export Citation:
Assignee:
KOBE STEEL LTD (JP)
International Classes:
C22C9/00; C22C9/02; C22C9/04; C22C9/05; C22C9/06; C22C9/10; H01B1/02; C22F1/00; C22F1/08
Foreign References:
| JP2014101574A | 2014-06-05 | |||
| JP2014208862A | 2014-11-06 | |||
| JP2015052143A | 2015-03-19 | |||
| JP2015132008A | 2015-07-23 |
Attorney, Agent or Firm:
SAMEJIMA, Mutsumi et al. (JP)
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