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1. (WO2018100919) COPPER ALLOY WIRE ROD AND METHOD FOR PRODUCING COPPER ALLOY WIRE ROD

Pub. No.:    WO/2018/100919    International Application No.:    PCT/JP2017/037975
Publication Date: Fri Jun 08 01:59:59 CEST 2018 International Filing Date: Sat Oct 21 01:59:59 CEST 2017
IPC: C22C 9/00
C22F 1/08
C22F 1/00
Applicants: FURUKAWA ELECTRIC CO.,LTD.
古河電気工業株式会社
Inventors: SEKIYA Shigeki
関谷 茂樹
MITOSE Kengo
水戸瀬 賢悟
Title: COPPER ALLOY WIRE ROD AND METHOD FOR PRODUCING COPPER ALLOY WIRE ROD
Abstract:
This copper alloy wire rod contains 0.5-6 wt% of Ag, with the remainder comprising Cu and inevitable impurities. In an area which is on a cross section parallel to the longitudinal direction of the copper alloy wire rod, and is observed in a field of view that is 1.7 µm in a direction perpendicular to the longitudinal direction and 2.3 µm in a direction parallel to the longitudinal direction, the copper alloy wire rod has at least one rectangular area having a width perpendicular to the longitudinal direction of 0.2 µm and a length parallel to the longitudinal direction of 2.3 µm, said rectangular area containing Ag and completely containing 5 or more second-phase particles having a maximum longitudinal length of less than 300 nm.