CN2546462Y

CN2546462Y - Metal shell with decoration surface

Info

Publication number: CN2546462Y
Application number: CN 01258263
Authority: CN
Inventors: 许哲源
Original assignee: Hongfujin Precision Industry Shenzhen Co Ltd; Hon Hai Precision Industry Co Ltd
Current assignee: Hongfujin Precision Industry Shenzhen Co Ltd; Hon Hai Precision Industry Co Ltd
Priority date: 2001-11-22
Filing date: 2001-11-22
Publication date: 2003-04-23
Anticipated expiration: 2011-11-22

Abstract

Disclosed is a metal shell with decoration surface, which can be obtained by the method that the surface of a metal matrix is anodized. The procedures of the anodizing treatment are as following: firstly, the metal matrix is anodized so that the surface of the metal matrix can be formed with an oxidation film; secondly, partial oxidation film is removed by laser carving or etching; thirdly, the metal matrix is anodized for the second time; fourthly, the second and the third procedures are repeated. By such procedures, the surface of the obtained metal shell has colorful and stereoscopic patters with multi-grains.

Description

Have ostentatious metal shell

[technical field]

The utility model relates to a kind of metal shell.

[background technology]

As everyone knows, alloy materials such as aluminium, titanium are because of having advantages such as intensity height, light weight, and are widely used in fields such as aviation, electronics, communication.In order further to improve its surface quality and visual effect, industry adopts painted usually or anode processing technique is reached.As United States Patent (USP) the 5th, 215, disclosed a kind of trailing of titanium base object No. 606, before to the object spraying, at first under vacuum, add hot basal body, its surface microstructure is grown up, carry out anodizing then, and by changing the two poles of the earth voltage control surface oxide layer color.For another example, 1155019A number disclosed a kind of titanium of Chinese patent CN surface coats the novel process of composite armor, and the mode that this process using anodic oxidation combines with heated oxide is to improve the stability of surface oxide layer.

But the oxide thickness homogeneous that aforesaid method obtained lacks the convexo-concave stereoscopic sensation.In addition, on same metallic matrix, be difficult to obtain the pattern of multicolour, many lines texture, so that the surface color and polish dullness, lack aesthetic feeling.

[summary of the invention]

The purpose of this utility model is to provide a kind of metal shell with three-dimensional convex-concave surface.

The purpose of this utility model is achieved in that to the metal base surface anodizing time, and according to following steps: (1) anodizing forms oxide film at metal base surface; (2) partial oxide film is removed in laser sculpture or etching; (3) carrying out secondary anode handles; (4) repeating step (2) and (3).Thereby has relief patterned layer in metal base surface formation.

Compared with prior art, advantage of the present utility model is: can obtain to have multicolour as required, many lines texture or relief metal shell.

[description of drawings]

Fig. 1 is a frontview of the present utility model.

Fig. 2 is a manufacturing processed synoptic diagram of the present utility model.

[embodiment]

The metal shell 1 that a kind of aluminium, aluminium alloy or titanium alloy etc materials are made, comprise metallic matrix 10 and patterned layer 20, wherein offer several keyholes 14 that are used for that the form 12 of display screen (not shown) is installed and are used for installing button (not shown) on the metallic matrix 10.Patterned layer 20 then is to have multicolour, many lines texture or three-dimensional pattern at metallic matrix 10 surperficial formed.

Obtain anode treatment method of the present utility model, may further comprise the steps:

(1) metallic matrix 10 is carried out anodizing, form oxide film on metallic matrix 10 surfaces;

(2) etching or laser sculpture are removed partial oxide film;

(3) metallic matrix 10 being carried out secondary anode handles;

(4) repeat (2)～(3) step;

(5) electrolytic coloring or adsorption coloring are handled;

(6) to make it outside surface smooth for the external coating transparent polymer material.

Has the solid pattern that height rises and falls according to the metal shell surface that aforesaid method obtained, and can control the thickness and the color of the oxide film that forms, thereby acquisition multicolour, many lines texture or three-dimensional pattern by changing anodizing voltage and treatment time.

Below in conjunction with embodiment present method is described further:

Present method first embodiment may further comprise the steps:

(1) with basic solution (NaOH) cleaning aluminum alloy matrix;

(2) alloy matrix aluminum is carried out anodizing, the anode treatment soln is that weight percent concentration is 0.6% phosphoric acid (H in this step ₃PO ₄), processes voltage is 50V, current density is at 10～50mA/cm ²Between, at room temperature handled about 20 minutes;

(3) laser sculpture is removed partial oxide film;

(4) alloy matrix aluminum is carried out secondary anode and handle, treatment solution is identical with step (2);

(5) repeat (3)～(4) step.

(5) electrolytic coloring or adsorption coloring are handled;

Present method second embodiment may further comprise the steps:

(1) with basic solution (Na ₂CO ₃) the cleaning aluminum alloy matrix;

(2) alloy matrix aluminum is carried out anodizing, the anode treatment soln is that weight percent concentration is 0.8% sulfuric acid (H in this step ₂SO ₄), processes voltage is 40V, current density is at 10～50mA/cm ²Between, at room temperature handled about 20 minutes, form oxide film at aluminium alloy matrix surface;

The oxide film surface screen printing acid-proof ink that (3) need keep;

(4) alloy matrix aluminum is put into phosphoric acid solution, the oxide film that erosion removal is not hidden by printing ink;

(5) with solubleness organic solvent cleaning aluminum alloy matrix, remove printing ink;

(6) repeat (1)～(5) step.

(7) electrolytic coloring or adsorption coloring are handled;

(8) to make it outside surface smooth for the external coating transparent polymer material.

Present method the 3rd embodiment may further comprise the steps:

(1) cleans aluminum substrate with basic solution;

(2) aluminum substrate that need not carry out anodizing partly is printed with the acid-proof ink sealing coat;

(3) aluminum substrate is carried out anodizing, the anode treatment soln is that weight percent concentration is 0.5% sulfuric acid in this step, and processes voltage is 40V, and current density is at 10～50mA/cm ²Between, at room temperature to handle about 20 minutes, the no ink lay on the aluminum substrate surface partly forms oxide film;

(4) clean aluminum substrate with solubleness organic solvent, remove printing ink;

(5) clean aluminum substrate with basic solution;

(6) aluminum substrate is carried out secondary anode and handle, the anode treatment soln is that weight percent concentration is 0.6% phosphoric acid in this step, and processes voltage is 40V, and current density is at 10～50mA/cm ²Between;

(7) repeat (1)～(6) step.

(8) electrolytic coloring or adsorption coloring are handled;

(9) to make it outside surface smooth for the external coating transparent polymer material.

Claims

1. one kind has ostentatious metal shell, comprises that a metallic matrix is characterized in that: have one at metal base surface and handle the zone of oxidation with convex-concave surface obtained by multiple anode.

2. metal shell as claimed in claim 1 is characterized in that: described metallic matrix is metallic aluminium, aluminium alloy or titanium alloy.