Process for surface treatment of aluminum or aluminum alloys by an alkaline chemical bath

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United States of America

PATENT NO 11220752
APP PUB NO 20210310131A1
SERIAL NO

17290848

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Abstract

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A process for surface treatment of semi-finished aluminum products is provided. The process includes preparing an aqueous solution of sodium hydroxide (NaOH) and dissolved metallic aluminum, kept in suspension by adding complexing agents including gluconate and sorbitol, and placing a semi-finished aluminum product in contact with the aqueous solution, maintaining temperature of the aqueous solution within a predetermined range.

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Patent Owner(s)

Patent OwnerAddress
GREEN ETCHING S R L10135 TORINO

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Marenco, Claudio Rosta, IT 1 0

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