Spring material for electric and electronic parts

Details Spring material for electric and electronic parts Spring material for electric and electronic parts

1985-12-27

1986-11-04

O'Keefe, Veronica

Metal treatment

Stock

Copper base

148414, 420488, 420492, 420472, 420473, C22C 09

Patent

active

046208852

ABSTRACT:
A spring material for electric and electronic parts having a high modulus of elasticity and good electrical conductivity. The material is made by melting Cu, Ni, Ti or mother alloy thereof and Cu--P as deoxidizer at a temperature between a melting point and 1,400.degree. C. to obtain a molten alloy consisting of 0.5.about.2.0% by weight of Ni, 0.1.about.1.0% by weight of Ti, less than 0.2% by weight of P and the remainder being Cu; casting the molten alloy into a metal mold to obtain an ingot; subjecting the ingot to hot (or warm) working, cold working and annealing; and finally rolling the annealed sheet above 50% and annealing it at low temperature with air cooling to obtain a formed product having a stable structure.

REFERENCES:
patent: 1151744 (1915-08-01), Vickers
patent: 2102238 (1937-12-01), Pilling et al.
patent: 2309103 (1943-01-01), Crampton et al.
patent: 2375285 (1945-05-01), Crampton et al.

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