Method of diffusion cladding a Fe-containing base material for d

Details Method of diffusion cladding a Fe-containing base material for d Method of diffusion cladding a Fe-containing base material for d

1983-03-25

1984-10-09

Kaplan, G. L.

Chemistry: electrical and wave energy

Processes and products

204 371, 204 40, 204 43R, 427261, 427287, 4273768, 4273839, 427405, C25D 510, C25D 550, C23B 552

Patent

active

044759916

ABSTRACT:
The overlaying of a Fe-containing metallic material such as stainless steel which constitutes an anti-abrasive and sweat-proof base for decorative articles and ornaments, with a precious metal alloy such as a gold 18 carats fine which contains Ag is made by at least two steps, viz.; a first step which comprises plating selected surfaces of the base material with the constituents of said alloy but excluding Ag constituent in any desired order and one at a time in a plurality of first successive layers, and heating said first layers to cause them to diffuse to each other and with the base material; and a second step which comprises plating said surfaces further with all or selected ones of the constituents of said alloy and including the primary and Ag constituents in any desired order and one at a time in a plurality of second successive layers, and heating the second layers to cause them to diffuse to each other and with the first layers.

REFERENCES:
patent: 1104842 (1914-07-01), Smith
patent: 1906689 (1933-05-01), Ledig
patent: 3251121 (1966-05-01), Prival
patent: 3698880 (1972-10-01), Koons et al.
patent: 3725219 (1973-04-01), Wesoloski
patent: 4309461 (1982-01-01), Shibata

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