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Old 02-02-2009, 06:38 PM   #67 (permalink)
IamBatman
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natural contact with the o2 in the air will form a layer of Aluminum oxide on bare aluminum. Aluminum oxide is a very hard and corrosion resistant material and will protect the AL from corrosion. Anodizing just enhances this process.

Typical anodizing and hard anodizing for industrial components are mainly for aesthetics, abrasion, and resistance to harsh chemicals. Not really applicable for this component.
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