Aluminum oxide film remover and method for surface treatment of aluminum or aluminum alloy
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United States of America Patent
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Feb 14, 2017
Grant Date -
Dec 29, 2011
app pub date -
Jun 23, 2011
filing date -
Jun 23, 2010
priority date (Note) -
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Abstract
Disclosed herein is an aluminum oxide film remover for removing an oxide film on the surface of aluminum or aluminum alloy, which comprises silver ions and/or copper ions, a solubilizing agent for silver ions and/or copper ions, and a quaternary ammonium hydroxide compound, and has a pH value of 10 to 13.5. A method for surface treatment of aluminum or aluminum alloy is also disclosed, which comprises immersing a workpiece having aluminum or aluminum alloy at least on the surface thereof in the aluminum oxide film remover, and depositing the silver and/or copper contained in the remover on the surface of aluminum or aluminum alloy while removing the aluminum oxide film.
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