Electrical contact spring material made of copper base alloy of

Details Electrical contact spring material made of copper base alloy of Electrical contact spring material made of copper base alloy of

1988-04-20

1989-12-12

Rutledge, L. Dewayne

Alloys or metallic compositions

Copper base

Tin containing

420477, 420481, 420484, 420487, 420488, 420490, 420492, 439887, C22C 900

Patent

active

048866415

ABSTRACT:
A novel electrical contact spring material made of a copper base alloy is disclosed. This spring material has high strength and toughness, as well as good adhesion of solder. It also has reduced anisotropy in its characteristics in two directions, i.e., the working direction and the direction perpendicular to it. A very thin-walled member can be produced from this spring material since its anisotropy in characteristics is small and will not increase even if the amount of working is increased.
The copper base alloy of which this spring material is made consists essentially of 2.2-5% Ti, 0.1-0.8% Co, 0.02-0.5% Cr, 0-0.6% of Ni and/or Fe, 0-0.5% of at least one of Ca, Mg, Zn, Cd, Li, Zr, Si, Mn, Sn and Al, and the balance being Cu and incidental impurities.

REFERENCES:
patent: 4749548 (1988-06-01), Akutsu et al.

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