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Surface treatment method of aluminum alloy shell

A technology of surface treatment and aluminum alloy, which is applied in the direction of surface reaction electrolytic coating, metal processing equipment, anodic oxidation, etc., can solve the problem that the appearance effect of aluminum alloy is not rich and diverse, so as to achieve rich and diverse surface appearance, improve corrosion resistance, Appearance of various effects

Active Publication Date: 2016-03-02
GUANGDONG OPPO MOBILE TELECOMM CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the appearance effect of the aluminum alloy produced by the surface treatment method is still not rich and diverse.

Method used

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  • Surface treatment method of aluminum alloy shell

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0058] The surface treatment process of the aluminum alloy shell is as follows: figure 1 As shown, the surface treatment process includes the following steps:

[0059] S1 side drawing: drawing the side of the aluminum alloy shell to obtain a drawing surface;

[0060] S2 protects the non-drawn surface with a jig;

[0061] S3 Spray sandblasting ink on the drawing surface;

[0062] S4 removes the jig;

[0063] S5 non-drawing surface sandblasting: sandblasting the non-drawing surface of the aluminum alloy shell;

[0064] S6 peeling ink: peel off the ink on the brushed surface;

[0065] S7 Alkali etching: degrease the aluminum alloy shell after peeling off the ink;

[0066] S8 Degreasing: Alkali etching the degreased aluminum alloy shell;

[0067] S9 stripping black film: remove the black film produced after alkali etching treatment;

[0068] S10 chemical polishing: chemically polish the aluminum alloy shell after removing the black film;

[0069] S11 Anodizing: Anodize the...

Embodiment 2

[0073] A surface treatment process for an aluminum alloy shell, comprising the steps of:

[0074] S1 side wire drawing: horizontally draw the side of the aluminum alloy shell with a wire drawing machine, the model of the wire drawing wheel is 800 mesh, the wire drawing speed is 30m / min, the speed of the wire drawing machine is 1800r / min, and the outlet range is 0.1mm, and the brushed surface;

[0075] S2 inkjet drawing surface: protect the non-drawing surface with a jig, then spray sandblasting ink on the drawing surface, and then remove the jig to get an aluminum alloy shell with side inkjet;

[0076] S3 Sandblasting on the non-drawing surface: Sandblasting the non-drawing surface of the aluminum alloy shell, spraying one or a combination of at least two of glass sand, steel sand or zircon sand, the sand mold is 220 mesh, The sand size is 0.05mm, and the sandblasting pressure is 2.5kg / cm 2 , the blasting speed is 15m / min;

[0077] S4 peeling ink: peel off the ink on the br...

Embodiment 3

[0087] A surface treatment process for an aluminum alloy shell, comprising the steps of:

[0088] S1 side wire drawing: longitudinally draw the side of the aluminum alloy shell with a wire drawing machine, the model of the wire drawing wheel is 20 mesh, the wire drawing speed is 2m / min, the speed of the wire drawing machine is 2400r / min, and the outlet range is 2.5mm. brushed surface;

[0089] S2 inkjet drawing surface: protect the non-drawing surface with a jig, then spray sandblasting ink on the drawing surface, and then remove the jig to get an aluminum alloy shell with side inkjet;

[0090] S3 Sandblasting on the non-drawing surface: sandblasting the non-drawing surface of the aluminum alloy shell, spraying one or a combination of at least two of glass sand, steel sand or zircon sand, the sand mold is 80 mesh, The sand size is 0.178mm, and the sandblasting pressure is 1.0kg / cm 2 , the blasting speed is 8m / min;

[0091] S4 peeling ink: peel off the ink on the brushed sur...

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Abstract

The invention provides a surface treatment method of an aluminum alloy shell, the surface treatment method comprises the following steps that S1, wire drawing is carried out on the side face of the aluminum alloy shell, and a wire-drawn surface is obtained; S2, sand blasting is carried out on the non-wire-drawn surface of the aluminum alloy shell; S3, anodic oxidation treatment is carried out on the whole aluminum alloy shell obtained after wire drawing and sand blasting, and an oxidation film layer is formed; and S4, hole sealing treatment is carried out on the aluminum alloy shell obtained after anodic oxidation treatment, and the aluminum alloy shell obtained after side face wire drawing and non-wire-drawn surface sand blasting is obtained. According to the surface treatment method of the aluminum alloy shell, the appearance of the aluminum alloy shell is rich and diverse.

Description

technical field [0001] The invention belongs to the technical field of surface treatment of metal materials, 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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B24B1/00B24C1/06B24C11/00C25D11/04C25D11/18
CPCB24B1/00B24C1/06B24C11/00C25D11/04C25D11/18
Inventor 陆任锋
Owner GUANGDONG OPPO MOBILE TELECOMM CORP LTD
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