Gold spring alloy composition

Details Gold spring alloy composition Gold spring alloy composition

1991-04-01

1992-12-22

Dean, R.

Metal treatment

Stock

Age or precipitation hardened or strengthened

148678, 420511, C22C 502

Patent

active

051731320

ABSTRACT:
This invention concerns a new spring gold alloy and heat treatment process specific to the new gold spring alloy. The heat treatment process and gold spring alloy are specifically formulated to work synergistically so as to optimize the ductility of the alloy after a first step, and resistance to deformation of the alloy after a second step of the heat treatment process.

REFERENCES:
patent: 1652740 (1927-12-01), Shields
patent: 1917378 (1933-07-01), Lenfant
patent: 2071216 (1935-07-01), Powell et al.
patent: 2169592 (1939-08-01), Peterson
patent: 2576738 (1951-11-01), Williams
patent: 2842825 (1958-07-01), Bangs
patent: 3141799 (1958-08-01), Brellier et al.
patent: 4257241 (1981-03-01), Voccio et al.
Allen S. McDonald and George H. Sistare. "The Mettallurgy of Some Carat Gold Jewellery Alloys", Gold Bulletin, Jul. 1978, vol. 11, No. 3, pp. 66-73.

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