Method for etching the surface of aluminum fragments, aluminum fragments with an etched surface and material composites containing such fragments

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United States of America Patent

PATENT NO 11085117
APP PUB NO 20190040532A1
SERIAL NO

16077436

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Abstract

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A method for etching fragments of aluminum or an aluminum alloy comprising the steps of: a. providing a hydrochloric acid solution in a trough-shaped container; b. inoculating the hydrochloric acid solution by chemically dissolving an amount of aluminum to produce an etching solution; c. adding the fragments to the etching solution immediately after the inoculation; d. etching the fragments for 0.5 to 10 minutes while stirring in such a way that the fragments are entrained by the motion of the etching solution; e. stopping the etching by diluting the etching solution with water; f. removing the etched fragments; g. repeatedly rinsing the fragments with water and h. rinsing the fragments with an organic desiccant. An etched fragment of aluminum or an aluminum alloy and also to a composite material comprising etched fragments.

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Patent Owner(s)

Patent OwnerAddress
CHRISTIAN-ALBRECHTS-UNIVERSITAET ZU KIELCHRISTIAN-ALBRECHTS-PLATZ 4 KIEL 24118

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Adelung, Rainer Kiel, DE 19 40
Baytekin-Gerngross, Melike Kiel, DE 7 5
Carstensen, Juergen Kiel, DE 12 7
Gerngross, Mark-Daniel Kiel, DE 7 5

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