Surface treatment method for aluminum alloy shell

A surface treatment, aluminum alloy technology, applied in the direction of surface reaction electrolytic coating, electrolytic coating, coating, etc., can solve the problem of not enough rich and diverse appearance effects, and achieve the effect of rich and diverse appearance effects and rich colors

Inactive Publication Date: 2015-12-23
GUANGDONG OPPO MOBILE TELECOMM CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this surface treatment method is aimed at die-casting aluminum alloys, and its appearance effects are still not rich and diverse.

Method used

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  • Surface treatment method for aluminum alloy shell

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0059] The surface treatment process of the aluminum alloy shell is as follows: figure 1 As shown, the surface treatment process includes the following steps:

[0060] Sandblasting the front of the S1 shell: sandblasting the front of the aluminum alloy shell to obtain an aluminum alloy shell with a sandblasted surface on the front;

[0061] S2 Paste a protective film on the sandblasting surface;

[0062] S3 side CNC high-gloss treatment: use CNC to process the side of the aluminum alloy shell into a high-gloss effect;

[0063] S4 peeling film: remove the protective film on the sandblasting surface;

[0064] S5 Degreasing: Degrease the aluminum alloy shell after sandblasting and high gloss treatment;

[0065] S6 Alkali etching: Alkali etching the degreased aluminum alloy shell;

[0066] S7 peeling black film: remove the black film produced by alkali etching treatment;

[0067] S8 chemical polishing: chemically polish the aluminum alloy shell after removing the black film; ...

Embodiment 2

[0072] The surface treatment process of the aluminum alloy shell includes the following steps:

[0073] Sandblasting the front of the S1 shell: sandblasting the front of the aluminum alloy shell, the spraying material used in the sandblasting treatment is glass sand, the size of the sand grain is 0.1mm, and the sandblasting pressure is 2.5kg / cm 2 , with a walking speed of 8m / min, an aluminum alloy shell with a sandblasted front surface is obtained;

[0074] S2 Paste PET film on the sandblasting surface;

[0075] S3 side CNC high-gloss treatment: the side of the aluminum alloy shell is processed into a high-gloss effect by Beijing Jingdiao machine, and the speed of Jingdiao machine is 20000r / min;

[0076] S4 peeling film: remove the PET film on the sandblasting surface;

[0077] S5 Degreasing: Degrease the aluminum alloy shell after sandblasting and high-gloss treatment. The solution for degreasing treatment is a mixture of trisodium phosphate, nonylphenol polyoxyethylene eth...

Embodiment 3

[0086] The surface treatment process of the aluminum alloy shell includes the following steps:

[0087] Sandblasting the front of the S1 shell: sandblasting the front of the aluminum alloy shell, the spray material used in the sandblasting treatment is glass sand, the size of the sand grain is 3mm, and the sandblasting pressure is 1.0kg / cm 2 , with a walking speed of 15m / min, to obtain an aluminum alloy shell with a sandblasted surface on the front;

[0088] S2 Paste PET film on the sandblasting surface;

[0089] S3 side CNC high-gloss treatment: the side of the aluminum alloy shell is processed into a high-gloss effect by Beijing Jingdiao machine, and the speed of Jingdiao machine is 70000r / min;

[0090] S4 peeling film: remove the PET film on the sandblasting surface;

[0091] S5 Degreasing: Degrease the aluminum alloy shell after sandblasting and high-gloss treatment. The solution for degreasing treatment is a mixture of trisodium phosphate, nonylphenol polyoxyethylene et...

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Abstract

The invention provides a surface treatment method for an aluminum alloy shell. The surface treatment method includes the following steps that S1, sand blasting is conducted on the front face of the aluminum alloy shell, and the aluminum alloy shell with the front face being the sand blasting face is obtained; S2, CNC machining is conducted on the side face of the aluminum alloy shell to achieve the highlight effect; S3, anodizing treatment is conducted on the whole aluminum alloy shell obtained after sand blasting and CNC treatment are conducted, and an oxidation film layer is formed; and S4, hole sealing treatment is conducted on the aluminum alloy shell obtained after anodizing treatment is conducted, and the aluminum alloy shell with the sand blasting front face and the highlight side face is obtained. By means of the surface treatment method for the aluminum alloy shell, the appearance effect of the aluminum alloy shell is more diverse.

Description

technical field [0001] The invention belongs to the technical field of metal surface treatment, and in particular relates to a surface treatment method of an aluminum alloy shell. Background technique [0002] Aluminum alloy is the most widely used non-ferrous metal structural material in industry, and has been widely used in aviation, aerospace, automobile, machinery manufacturing, shipbuilding and chemical industry. With the rapid development of industrial economy, the demand for welded structural parts of aluminum alloy is increasing day by day, so that the research on weldability of aluminum alloy is also in-depth. Aluminum alloy is currently the most widely used alloy. [0003] The advancement of science and technology has brought great convenience to our life, and mobile phones have become an indispensable product in our daily life. Since the aluminum alloys of the 5 series (such as 5052) and the 6 series (such as 6061, 6063) have better anodic oxidation effects, the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25D11/18C25D11/16
Inventor 陆任锋
Owner GUANGDONG OPPO MOBILE TELECOMM CORP LTD
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