Process for producing spectacle frames using an age-...

Details Process for producing spectacle frames using an age-... Process for producing spectacle frames using an age-...

C - Chemistry, Metallurgy

22

F

148/55.2

C22F 1/08 (2006.01) G02C 13/00 (2006.01)

Patent

CA 1083020

PROCESS FOR PRODUCING SPECTACLE FRAMES USING AN AGE-HARDENABLE NICKEL-BRONZE ALLOY Abstract of the Disclosure There is disclosed a process for the production of a spectacle frame high in tensile strength and resistance to permanent set utilizing an age-hardenable nickel-bronze alloy which is capable of being strengthened by a heat-aging treatment step such that the tensile strength and stiffness can be substantially increased. The tendency for the frame to take a permanent set with the application of stress to the frame is, therefore, substantially reduced as compared to a similar spectacle frame not subjected to a heat-aging treatment step or spectacle frames made of alloys which cannot be strengthened by a heat-aging treatment.

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