Coating processes – With post-treatment of coating or coating material – Heating or drying
Patent
1991-02-06
1992-12-22
Beck, Shrive
Coating processes
With post-treatment of coating or coating material
Heating or drying
4273837, 428607, 428672, 228196, 22826318, B05D 302
Patent
active
051733404
ABSTRACT:
A method of producing durable, structurally strong, investment quality gold articles of high troy weight, excellent color and revealing properties and the method of their production are described, including the formation of a structural base from an alloy containing not over 8.33% of a strengthening material such as chromium, titanium or vanadium, which can provide the required strength and hardness in low concentrations, and overlayment or "overarching" with a gold alloy coating in a manner such that both alloys are visible. The structural base provides the support, strength and resistance to corrosion in articles of various shapes, while retaining a high degree of gold purity.
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Metals Handbook, 8th edition, vol. 1, 1961, pp. 1185-1186.
Beck Shrive
Utech Benjamin L.
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