HUT62344A - Direct dyeing oxidation process for producing hard oxide layer of chocolate-brown prime colour on aluminium and its alloys
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Direct dyeing oxidation process for producing hard oxide layer of chocolate-brown prime colour on aluminium and its alloys
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Publication number
HUT62344A
HUT62344AHU325191AHU325191AHUT62344AHU T62344 AHUT62344 AHU T62344AHU 325191 AHU325191 AHU 325191AHU 325191 AHU325191 AHU 325191AHU T62344 AHUT62344 AHU T62344A
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Application filed by Aluterv Kfi Aluminiumipari TerfiledCriticalAluterv Kfi Aluminiumipari Ter
Priority to HU325191ApriorityCriticalpatent/HU208346B/en
Publication of HU913251D0publicationCriticalpatent/HU913251D0/en
Publication of HUT62344ApublicationCriticalpatent/HUT62344A/en
Publication of HU208346BpublicationCriticalpatent/HU208346B/en
Coloring Foods And Improving Nutritive Qualities
(AREA)
Electroplating And Plating Baths Therefor
(AREA)
Abstract
Anodic treatment of Al (alloy) is carried out in an electrolyte comprising (g/l) 3-100 sulphosalycilic acid, 20-80 maleic acid and 2-20 boric acid at 30-70 V and 0.5-5 A/dm2 current. The reducing agent is 5-50 g/l ascorbic acid and 0.5-2 g/l sulphuric acid. The produced oxide powder layer is treated by usual method
HU325191A1991-10-151991-10-15Direct dyeing oxidation process for producing hard oxide layer of chocolate brown basic colour on aluminium and its alloys
HU208346B
(en)
A method for anodisation of magnesium and magnesium based alloys using an electrolytic solution containing ammonia, this provides a coating without spark formation
Method of treating outer surfaces of continuous casting mould components made of copper or its alloys, including nickel plating stage and stage of removing the nickel coating from that surface
Direct dyeing anodic oxidation process for producing bluish-grey, cornflower blue, greyish-blue, dark blue oxide layer or of its own grey colour, on aluminium or its alloys