Electrolysis: processes – compositions used therein – and methods – Electrolytic coating – Coating predominantly single metal or alloy substrate of...
Patent
1993-06-11
1995-07-18
Niebling, John
Electrolysis: processes, compositions used therein, and methods
Electrolytic coating
Coating predominantly single metal or alloy substrate of...
205218, 205226, 205228, C25D 536, C25D 550
Patent
active
054338395
ABSTRACT:
This sheet metal comprises a substrate (12) made of stainless steel containing more than 16% of chromium in its weight composition, coated with a metal layer (16) containing chiefly tin. Between the metal layer (16) and the substrate (12) the sheet metal comprises a layer (14) of an intermetallic compound containing at least iron, chromium and tin. To manufacture this sheet metal, a layer (16) of metallic coating containing chiefly tin is deposited by an electrolytic route on a sheet (12) made of stainless steel. The coated sheet metal is heated to a temperature above the melting temperature of the coating layer (16) to permit the formation of the intermetallic compound. The heating is maintained for a sufficient period for the surface of the coating layer (16) to have a matt appearance.
REFERENCES:
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patent: 4764260 (1988-08-01), Gay et al.
F. A. Lowenheim, Electroplating, McGraw-Hill Book Co., New York, 1978, pp. 67-89, 306-319.
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Verlag Stahlschlussel Wegst GmbH, 1989, pp. 374-375, A. C. W. Wegst, "Stahlschlussel".
Chemical Abstracts, vol. 102, No. 2, Jan. 1985, Columbus, Ohio, US; abstract No. 14113a, "Pretreatment for Plating Stainless Steels" p. 488 (Abstract) & JP-A-59 145 795 (Furukawa Electric Co., Ltd) 21 Aug. 1984.
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Amelot Pascal
Bavay Jean-Claude
Leader William T.
Niebling John
Ugine S.A.
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