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Aluminum alloy marine-grade three-proof oxide film
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The aluminum‑alloy marine‑grade triple‑protection oxide film is formed by depositing iodine‑based compounds with antibacterial properties into the nano‑micropores of a silicon‑doped anodic oxidation layer on the alloy surface, thereby creating a functional oxide coating that effectively resists the combined corrosive damage caused by salt spray, high humidity, and mold. This functional oxide film exhibits a neutral salt‑spray resistance exceeding 1,000 hours when applied to 5‑series aluminum alloys. The technology has been granted a national invention patent, Patent No. ZL201310498581.1. The project’s成果 have been deployed in marine‑grade three‑stage salt‑spray filters for over ten years, successfully extending the service life of “hatch covers” from the original four years to eight years.
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Aluminum alloy marine-grade three-proof oxide film
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