Method of producing an aluminum base part
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United States of America Patent
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Jul 16, 2013
Grant Date -
Aug 30, 2012
app pub date -
May 9, 2012
filing date -
Dec 19, 2007
priority date (Note) -
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status (Latency Note)
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Abstract
An aluminum base part is composed of a forging cast product produced by a forging cast process and a nickel chromium plating layer formed on the forging cast product. The nickel chromium plating layer is composed of a semibright nickel plating layer formed on the forging cast product and having a thickness of 5 to 10 μm, a bright nickel plating layer 33 formed on the semibright nickel plating layer 31 and having a thickness of 5 to 10 μm, and a chromium plating layer 37 formed on the bright nickel plating layer 33 and having a thickness of 0.5 to 3 μm. The present invention adopts a forging cast product rather than a cast product. The forging cast product has a smooth surface, so that a plating layer can be directly formed on the surface of the forging cast product without forming an undercoat resin layer.
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