High-strength, high conductivity copper alloy excellent in...

Details High-strength, high conductivity copper alloy excellent in... High-strength, high conductivity copper alloy excellent in...

2005-04-19

2005-04-19

Ip, Sikyin (Department: 1742)

Metal treatment

Stock

Copper base

C148S433000, C148S434000, C148S435000, C148S436000, C420S484000, C420S492000

Reexamination Certificate

active

06881281

ABSTRACT:
The present invention provides a Cu—Cr—Zr alloy material excellent in fatigue and intermediate temperature characteristics, which comprises 0.05 to 1.0% by mass of Cr and 0.05 to 0.25% by mass of Zr with a balance of Cu and inevitable impurities. The alloy comprises inclusion particles based on any one of Zr and a Cu—Zr alloy having a diameter of 0.1 μm or more, and the proportion of the inclusion particles containing 10% or more of sulfur as one of the inevitable impurities is one particle/mm2.

REFERENCES:
patent: 0492987 (1992-01-01), None
patent: 2001244398 (2001-09-01), None
patent: 2002003963 (2002-01-01), None

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