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Vickers Ltd
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Vickers Ltd
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Publication date
Application filed by Vickers LtdfiledCriticalVickers Ltd
Publication of ES272747A1publicationCriticalpatent/ES272747A1/en
C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
C25D3/00—Electroplating: Baths therefor
C25D3/02—Electroplating: Baths therefor from solutions
C25D3/38—Electroplating: Baths therefor from solutions of copper
C25D3/40—Electroplating: Baths therefor from solutions of copper from cyanide baths, e.g. with Cu+
Abstract
Bright copper plating method, in which a copper plating bath comprises 4 to 9 ounces per gallon of copper (113.36 g to 255.06 g for 4.54 1s); 0.5 to 2.0 ounces per gallon (14.17 g to 56.68 g for 4.54 1s); free sodium or potassium cyanide; 0.5 to 8.0 ounces per gallon (14.17 to 226.72 g. per 4.54 1s.) of sodium or potassium hydroxide; 2 to 15 ounces per gallon (56.68 to 42.51 g. for 4.54 1s.) of sodium or potassium carbonate, and 0.25 g. at 2.5 g. per gallon (4.54 1s) of coblate, adjusting the pH of the galvanizing bath to a value of 10 to 14, it is used at a temperature ranging from 30 to 80ºC. and with a current density of 10 to 50 amps per square foot (0.92 m2) under normal conditions of direct current galvanizing. (Machine-translation by Google Translate, not legally binding)
ES0272747A1960-12-081961-12-06Improvements in or relating to copper plating
ExpiredES272747A1
(en)
Procedure for superficial treatment of ferrous surfaces to improve their rubbing and wear resistance qualities. (Machine-translation by Google Translate, not legally binding)
Improvements in the process of metalization of objects by coating with metals of any kind (Machine-translation by Google Translate, not legally binding)
New procedure for the chemical degrassification of industrial waters, especially of the power supplies of steam generators (Machine-translation by Google Translate, not legally binding)