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Shell and manufacturing method thereof

A manufacturing method and shell technology, applied in the direction of ion implantation plating, metal material coating process, coating, etc., can solve the problems of PVD decorative coating discoloration, peeling, film-base potential difference, etc.

Inactive Publication Date: 2012-07-04
HONG FU JIN PRECISION IND (SHENZHEN) CO LTD +1
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  • Abstract
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  • 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, such as pinholes, cracks, and micro-battery corrosion will occur in the aluminum and aluminum alloy substrates, A large film-substrate potential difference is formed, which accelerates the corrosion rate of the micro-battery. Therefore, directly plating a PVD decorative coating such as a TiN layer, CrN layer, etc. on the surface of an aluminum or aluminum alloy substrate cannot effectively prevent all Electrochemical corrosion occurs to the above-mentioned aluminum or aluminum alloy substrate, and at the same time, the PVD decorative coating itself will also undergo phenomena such as discoloration and peeling off.

Method used

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  • Shell and manufacturing method thereof
  • Shell and manufacturing method thereof
  • Shell and manufacturing method thereof

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Embodiment Construction

[0026] see figure 1 , The casing 10 of a preferred embodiment of the present invention includes a metal base 11 , an anti-corrosion layer 13 and a color layer 15 sequentially formed on the metal base 11 . The casing 10 can be a casing of a 3C electronic product, and can also be an industrial, building component, and a vehicle component such as an automobile.

[0027] The material of the metal base is aluminum, aluminum alloy, magnesium or magnesium alloy.

[0028] The anti-corrosion layer 13 is an aluminum-manganese layer with a thickness of 0.2-8 μm.

[0029] The color layer 15 is a titanium nitride layer with a thickness of 0.2-8 μm.

[0030] It can be understood that the color layer 15 can also be chromium nitride or other decorative color layers.

[0031] Both the anti-corrosion layer 13 and the color layer 15 can be deposited and formed by magnetron sputtering.

[0032] The method for manufacturing the housing 10 according to a preferred embodiment of the present inve...

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Abstract

The invention provides a shell which comprises a metal base, an anticorrosion layer formed on the metal base, and a decorative color layer, wherein the anticorrosion layer is an aluminum-manganese layer. The shell has favorable corrosion resistance and good decorative appearance. The invention also provides a manufacturing method of the shell, which comprises the following steps: providing the metal base; carrying out magnetron sputtering on the metal base to form the anticorrosion layer; and carrying out magnetron sputtering on the anticorrosion layer to form the decorative 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 can be used on metal substrates such as aluminum, aluminum alloy and stainless steel The application in the field of material surface decorative treatment is more and more extensive. [0003] However, because the standard electrode potential of aluminum or aluminum alloy is very low, and the PVD decorative coating itself will inevitably have tiny pores, such as pinholes, cracks, and micro-battery corrosion will occur in the aluminum and aluminum alloy substrates, A large film-substrate potential difference is formed, which accelerates the corrosion ra...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C14/16C23C14/06C23C14/35
Inventor 张新倍陈文荣蒋焕梧陈正士张成
Owner HONG FU JIN PRECISION IND (SHENZHEN) CO LTD
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