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PROCESS FOR REDUCING NICKEL LEACH RATES FOR NICKEL ACETATE SEALED ANODIC OXIDE COATINGS
PROCESS FOR REDUCING NICKEL LEACH RATES FOR NICKEL ACETATE SEALED ANODIC OXIDE COATINGS
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机译:降低醋酸镍密封阳极氧化膜的镍浸出率的方法
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摘要
Sealed anodic coatings that are resistant to leaching of nickel and nickel-containing products and methods for forming the same are described. Methods involve post-sealing thermal processes to remove at least some of the leachable nickel from the sealed anodic coatings. In some embodiments, the post-sealing thermal processes involve immersing the sealed anodic coating within a heated solution so as to promote diffusion of the leachable nickel out of the sealed anodic coatings and into the heated solution. The resultant sealed anodic coating is pre-leached of nickel and is therefore well suited for many consumer product applications. In some embodiments, a post-sealing thermal process is used to further hydrate and seal the sealed anodic coating, thereby repairing structural defects within the sealed anodic coating.
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