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Housing and manufacture method thereof

A manufacturing method and shell technology, which are applied in the directions of ion implantation plating, metal material coating process, coating, etc., can solve the problems such as the inability to effectively prevent the electrochemical corrosion, peeling off, and poor corrosion resistance of aluminum or aluminum alloy substrates.

Inactive Publication Date: 2012-06-06
HONG FU JIN PRECISION IND (SHENZHEN) CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, since the most obvious disadvantage of aluminum or aluminum alloy is poor corrosion resistance, and the PVD decorative coating itself will inevitably have tiny pores, therefore, directly plating such as TiN layer, TiNO layer on the surface of aluminum or aluminum alloy substrate , 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 Occurrence of discoloration, shedding, etc.

Method used

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  • Housing and manufacture method thereof
  • Housing and manufacture method thereof

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Embodiment Construction

[0020] see figure 1 , The casing 10 of a preferred embodiment of the present invention includes an aluminum or aluminum alloy base 11 , an aluminum layer 13 and a color layer 15 sequentially formed on the aluminum or aluminum alloy base 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.

[0021] The thickness of the aluminum layer 13 is 2-5 μm.

[0022] The color layer 15 is an electrical insulating layer with anti-corrosion properties. The color layer 15 includes titanium dioxide (TiO2) sequentially formed on the aluminum layer 13. 2 ) layer 151 and silicon dioxide (SiO 2 ) layer 153. The TiO 2 The thickness of layer 151 is 50-150nm, the SiO 2 The thickness of layer 153 is 50-150 nm.

[0023] Both the aluminum layer 13 and the color layer 15 can be deposited and formed by magnetron sputtering. It can be understood that the aluminum layer 13 and the colo...

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Abstract

The invention provides a housing, comprising an aluminium or aluminium alloy matrix, an aluminium layer and a color layer formed on the aluminium or aluminium alloy matrix. The color layer is an electrical isolating layer with anticorrosion performance. The housing has good corrosion resistance and decorative appearance. The invention also provides a manufacture method of the housing. The method comprises the following steps: providing the aluminium or aluminium alloy matrix; carrying out magnetron sputtering on the aluminium or aluminium alloy matrix to form the aluminium layer; and carrying out magnetron sputtering on the aluminium layer to form corrosion resistant color layer.

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 most obvious disadvantage of aluminum or aluminum alloy is poor corrosion resistance, and the PVD decorative coating itself will inevitably have tiny pores, therefore, directly plating such as TiN layer, TiNO layer on the surface of aluminum or aluminum alloy substrate , TiCN layer, CrN layer, CrNO layer, CrCN layer or other PVD decorative coatin...

Claims

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Application Information

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IPC IPC(8): C23C14/08C23C14/35
Inventor 张新倍陈文荣蒋焕梧陈正士张满喜
Owner HONG FU JIN PRECISION IND (SHENZHEN) CO LTD