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Shell and manufacturing method thereof

A manufacturing method and shell technology, applied in the direction of ion implantation plating, coating, transportation and packaging, etc., can solve problems such as shedding, inability to effectively prevent electrochemical corrosion of aluminum or aluminum alloy substrates, discoloration, etc.

Inactive Publication Date: 2012-05-16
金机虎精密机械(武汉)有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, since the standard electrode potential of aluminum or aluminum alloy is very low, and the PVD decorative coating itself will inevitably have tiny pores, therefore, direct plating on the surface of aluminum or aluminum alloy substrates such as TiN layer, TiNO layer, TiCN layer, CrN layer, CrNO layer, CrCN layer or other PVD decorative coatings with corrosion resistance cannot effectively prevent the electrochemical corrosion of the aluminum or aluminum alloy substrate, and the PVD decorative coating itself will also undergo abnormal discoloration, shedding, etc.

Method used

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Embodiment Construction

[0018] see figure 1 A housing 10 in a preferred embodiment of the present invention includes an aluminum or aluminum alloy substrate 11 , an electrical insulation layer 13 and a color layer 15 sequentially formed on the aluminum or aluminum alloy substrate 11 . The casing 10 can be a casing of a 3C electronic product, and can also be a frame of glasses, a construction piece, and a part of a vehicle such as an automobile.

[0019] The electrical insulating layer 13 is silicon dioxide (SiO 2 ) layer or aluminum oxide (Al 2 o 3 ) layer, the thickness of which is 2.0-3.0 μm. It can be understood that the electrical insulating layer 13 can also be a polytetrafluoroethylene layer or other insulating layers. The color of the electrical insulating layer 13 is preferably not to affect the color tone of the color layer 15 , such as silver, white, off-white and other light tones.

[0020] The color layer 15 is a TiN layer with a thickness of 0.5-3.0 μm. It can be understood that th...

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Abstract

The invention provides a shell. The shell comprises an aluminum or aluminum alloy substrate, an electric insulating layer formed on the aluminum or aluminum alloy substrate and a color layer with corrosion resistance, and has high corrosion resistance and decorative appearance. A method for manufacturing the shell comprises the following steps of: providing the aluminum or aluminum alloy substrate; performing magnetron sputtering on the aluminum or aluminum alloy substrate to form the electric insulating layer; and performing magnetron sputtering on the electric insulating layer to form the color layer with the corrosion resistance.

Description

technical field [0001] The invention relates to a casing and a manufacturing method thereof. Background technique [0002] Vacuum coating technology (PVD) is a very environmentally friendly film-forming technology. The film layer formed by vacuum coating has the advantages of high hardness, high wear resistance, good chemical stability, firm combination with the substrate, and bright metal appearance. Therefore, vacuum coating is used on aluminum, aluminum alloy, magnesium, and magnesium alloys And stainless steel and other metal substrate surface decorative treatment field is more and more widely used. [0003] However, since the standard electrode potential of aluminum or aluminum alloy is very low, and the PVD decorative coating itself will inevitably have tiny pores, therefore, direct plating on the surface of aluminum or aluminum alloy substrates such as TiN layer, TiNO layer, TiCN layer, CrN layer, CrNO layer, CrCN layer or other PVD decorative coatings with corrosio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C14/06C23C14/35
CPCC23C14/024C23C14/0641C23C14/0676C23C14/0664Y10T428/265Y10T428/31544Y10T428/31678
Inventor 张新倍陈文荣蒋焕梧陈正士张满喜
Owner 金机虎精密机械(武汉)有限公司
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