METHOD OF MANUFACTURING AN INTERFERENCE COATING
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United States of America Patent
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Nov 9, 2023
app pub date -
Jun 25, 2021
filing date -
Jul 29, 2020
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Abstract
A method of manufacturing an interference coating on the surface of an aluminum alloy or aluminum alloys product comprising anodizing and electrochemical dyeing with use of alternating current consisting in that, the electrolyte used during electrochemical dyeing comprises copper (II) sulfate (IV) in an amount from 1 to 100 g/L, boric acid in the amount of 1 to 40 g/L and tartaric acid in the amount of 0.1 to 20 g/L.
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