Method of silver plating stainless steel vacuum bottle surfaces
AssigneeTaiyo Sanso Co., Ltd.
InventorsKiyoshi Nagai, Hiroshi Shinohara, Nobuo Imamura
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Abstract
A method of silver plating stainless steel vacuum bottle surfaces includes the steps of thermally treating the surfaces to be coated at a temperature of at least 200.degree. C. and then using an electroless plating technique to silver plate the thermally treated surfaces. The thermal treatment can be as low as 200.degree. C. if it occurs in an atmosphere of at least 5% hydrogen gas. If the thermal treatment occurs in a vacuum, however, the temperature must be at least 700.degree. C.
Claims6
A method of silver plating stainless steel vacuum bottle surfaces including the steps of:
- thermally treating the surfaces to be coated at a temperature of at least 700.degree. C. in a vacuum furnace at a vacuum of at least 1.times.10.sup.-2 torr;
- and,
- then using an electroless plating technique to plate silver onto said surface.
A method of silver plating stainless steel vacuum bottle surfaces including the steps of:
- thermally treating the surfaces to be coated at a temperature of at least 200.degree. C. in an atmosphere containing at least about 5% hydrogen gas and the remainder thereof comprised of an inert gas;
- and,
- then using an electroless plating technique to plate silver onto said surface.
Dependencies are inferred from the claim text.