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Shell and method for producing the same

A manufacturing method and shell technology, applied in ion implantation plating, coating, transportation and packaging, etc., can solve the problems of PVD coating discoloration, peeling off, difficulty in maintaining decorative appearance, etc.

Inactive Publication Date: 2012-06-06
HONG FU JIN PRECISION IND (SHENZHEN) CO LTD +1
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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, the potential difference with the PVD coating, such as TiN layer, TiN layer or CrN layer, is relatively large, and the PVD coating itself will inevitably have tiny pores, such as pinholes, Cracks that predispose aluminum or aluminum alloy substrates to microbattery corrosion
Therefore, directly coating the TiN layer, TiN layer or CrN layer on the surface of the aluminum or aluminum alloy substrate cannot effectively improve the corrosion resistance of the aluminum or aluminum alloy substrate, and at the same time, the PVD coating itself will also undergo discoloration and fall off. and other phenomena, it is difficult to maintain a good decorative appearance

Method used

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  • Shell and method for producing the same
  • Shell and method for producing the same

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Embodiment Construction

[0019] see figure 1 , The casing 10 of a preferred embodiment of the present invention includes an aluminum or aluminum alloy substrate 11 , a bonding layer 13 and an anti-corrosion 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 an industrial, building component, and a vehicle component such as an automobile.

[0020] The bonding layer 13 is a silicon layer with a thickness of 0.1-0.2 μm.

[0021] The anti-corrosion layer 15 is a silicon nitride layer with a thickness of 0.5-1.0 μm.

[0022] A colored layer may also be magnetron sputtered on the anti-corrosion layer 15, and the colored layer 17 is a titanium nitride layer (Ti-N) with a thickness of 1.0-3.0 μm.

[0023] It can be understood that the color layer 17 can also be a chromium nitride layer (Cr—N) or other decorative color layers.

[0024] The bonding layer 13, the anti-corrosion layer 15 and the color layer 17 ...

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Abstract

The invention provides a shell, comprising an aluminium or aluminium alloy matrix, a combined layer, and an anti-corrosion layer, wherein the combined layer and the anti-corrosion layer are formed successively on the aluminium or aluminium alloy matrix, the combined layer is a silicon layer, and the anti-corrosion layer is a silicon nitride layer. The invention further provides a method for producing the shell, comprising the following steps: providing the aluminium or aluminium alloy matrix and successively forming the combined layer and the anti-corrosion layer on the aluminium or aluminium alloy matrix by magnetron sputtering. The shell has good corrosion resistance and decorative appearance.

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, since the standard electrode potential of aluminum or aluminum alloy is very low, the potential difference with the PVD coating, such as TiN layer, TiN layer or CrN layer, is relatively large, and the PVD coating itself will inevitably have tiny pores, such as pinholes, Cracks, making the aluminum or aluminum alloy substrate prone to micro-battery corros...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C14/06C23C14/35
CPCC23C14/0652C23C14/024C23C14/0641Y10T428/12576Y10T428/265Y10T428/12549
Inventor 张新倍陈文荣蒋焕梧陈正士陈晓强
Owner HONG FU JIN PRECISION IND (SHENZHEN) CO LTD
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