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Anodic oxide film modification method, anodic oxide film structure and aluminum alloy outboard motor
Anodic oxide film modification method, anodic oxide film structure and aluminum alloy outboard motor
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机译：阳极氧化膜改性方法，阳极氧化膜结构及铝合金舷外机
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摘要
PROBLEM TO BE SOLVED: To provide a rust-prevention structure for an anodized aluminum alloy material, which has more excellent corrosion resistance.;SOLUTION: The structure of an anodic oxide film 36A in figure (a), in which the film is supposed to get damage 41 as reaches an aluminum alloy material 30, with a sharp foreign substance 39 for example, comprises that non-crystalline substance 33 covers the exposed part of the aluminum alloy material 30 to form a passivated fresh film 42, as is shown in a figure (b). Then, the passivated film 42 prevents chlorine ions in saline from attacking the aluminum alloy material 30.;COPYRIGHT: (C)2002,JPO
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