Process for making heat stable color anodized aluminum and articles formed thereby
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United States of America Patent
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Sep 22, 2015
Grant Date -
Feb 7, 2013
app pub date -
Aug 5, 2011
filing date -
Aug 5, 2011
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Abstract
A process of hard anodizing or Type III anodizing an aluminum article creates a heat stable, hard anodized, color surface on the exterior of the article. The process includes anodizing the aluminum article to achieve a hard anodized base layer on a surface of the article. A copper layer is deposited after the exterior is hard anodized. A tin layer is deposited after the step of depositing the copper layer.
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