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Aluminum alloy shell and preparation method thereof

A technology of aluminum alloy and shell, applied in metal shell, electrical equipment shell/cabinet/drawer, coating, etc., can solve the problems of single texture and single decoration of mobile phone shell, etc.

Active Publication Date: 2017-07-07
BYD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problem of single appearance decoration and single texture of the mobile phone casing in the prior art, the purpose of the present invention is to provide an aluminum alloy casing and a preparation method thereof. convex and concave

Method used

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  • Aluminum alloy shell and preparation method thereof

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preparation example Construction

[0028] According to the preparation method of the aluminum alloy shell of the present invention, in a preferred situation, different colors can be formed in the oxide film on the convex portion and the oxide film on the concave portion. By forming different colors in the oxide film of the convex part and the oxide film of the concave part, the aluminum alloy shell can have film layers of different colors.

[0029] According to the preparation method of the aluminum alloy shell of the present invention, the preparation method comprises in sequence:

[0030] Step a, performing anti-etching protection on the surface of the aluminum alloy shell substrate to form a protective film,

[0031] Step b, forming a patterned layer on the surface of the aluminum alloy shell substrate on which the protective film is formed by etching,

[0032] Step c, performing the first anodic oxidation on the surface of the aluminum alloy shell substrate,

[0033] Step d, removing the protective film f...

Embodiment 1

[0055] This embodiment is used to illustrate the aluminum alloy shell of the present invention and its preparation method

[0056] A die-casting aluminum alloy back shell base material for a P8 mobile phone (purchased from BYD Co., Ltd.) was used as the aluminum alloy shell base material in this embodiment. Evenly spray a layer of Wanjiayuan 5680 series anti-etching UV ink (Shenzhen Wanjiayuan Co., Ltd.) on the aluminum alloy shell base material, and then put the aluminum alloy shell base material with the anti-etching UV ink in the drying oven Dry at a temperature of 80° C. for 15 minutes to cure the anti-etching UV ink to form a film.

[0057] Place the film on the area where the pattern needs to be engraved on the base material of the aluminum alloy shell, cover the film with a layer of silicone film, and then use a jig to press the film tightly on the material. At an irradiation intensity of 100mJ / cm 2 Exposure to UV light for 25 s.

[0058] After the exposure, the alum...

Embodiment 2

[0068] This embodiment is used to illustrate the aluminum alloy shell of the present invention and its preparation method

[0069] A die-casting aluminum alloy back shell base material for a P8 mobile phone (purchased from BYD Co., Ltd.) was used as the aluminum alloy shell base material in this embodiment. Evenly spray a layer of Wanjiayuan 5680 series anti-etching UV ink (Shenzhen Wanjiayuan Co., Ltd.) on the aluminum alloy shell base material, and then put the aluminum alloy shell base material with the anti-etching UV ink in the drying oven Dry at a temperature of 83° C. for 20 minutes to cure the anti-etching UV ink to form a film.

[0070] Place the film on the area where the pattern needs to be engraved on the base material of the aluminum alloy shell, cover the film with a layer of silicone film, and then use a jig to press the film tightly on the material. At an irradiation intensity of 100mJ / cm 2 Exposure to UV light for 25 s.

[0071] After the exposure, the alum...

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Abstract

The invention discloses an aluminum alloy shell. According to the aluminum alloy shell, the outer surface of the aluminum alloy shell is provided with a convex part and a concave part, the convex part is provided with a convex part oxide film, the concave part is provided with a concave part oxide film, and the surface of the convex part oxidation film and the surface of the concave part oxidation film have a glossiness being 90-150. The invention further discloses a preparation method for the aluminum alloy shell. The aluminum alloy shell has the convex-concave three-dimensional texture and has a high-light convex surface and a high-light concave surface.

Description

technical field [0001] The invention relates to an aluminum alloy shell and a preparation method thereof. Background technique [0002] With the development of electronic technology, more and more electronic products appear in our lives, such as mobile phones, tablet computers, e-books, etc. Most of the shells of these electronic products use plastic shells. The requirements of the industry continue to increase, and more and more electronic products use metal casings. On the one hand, the metal casing has a better protective effect than the plastic casing, and on the other hand, its unique metal texture is also an important reason why the metal casing has attracted more and more attention. [0003] At present, the main purpose of surface treatment of metal casings of electronic products is decoration and protection. Among the existing surface treatment methods for metal casings, anodic oxidation, micro-arc oxidation and hard anodic oxidation All can achieve the above two e...

Claims

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Application Information

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IPC IPC(8): C23F1/02C23F1/20C25D11/12C25D11/16C23F3/03C23F1/36
CPCC23F1/02C23F1/20C23F1/36C23F3/03C25D11/12C25D11/16C25D11/022C25D11/08C25D11/14C25D11/18C25D11/246H05K5/04H05K5/0243
Inventor 廖重重熊雄石峰云胡猷成
Owner BYD CO LTD
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