abstract |
Provided are an aluminum alloy housing and preparation method thereof, wherein, an outer surface of the aluminum alloy housing has a protruding portion and a recessed portion, and the protruding portion has a protruding portion oxidation film and the recessed portion has a recessed portion oxidation film. The surface of the protruding portion oxidation film has a glossiness of 90 to 150 and the surface of the recessed portion oxidation film has a glossiness of 5 to 25. |