Method and equipment for preparing material with multi-color oxide film on surface

A technology of oxide film and anodic oxide film, which is applied in the direction of surface reaction electrolytic coating, electrolytic coating, coating, etc., can solve the problems of complicated preparation process, achieve the effect of being environmentally friendly and avoiding alkali corrosion

Active Publication Date: 2010-02-17
BYD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to overcome the defect that the preparation process of the existing material with multicolor oxide film on the surface is complex, to provide a simple method for preparing the material with multicolor oxide film on the surface and to prepare the surface with multicolor oxide film material equipment

Method used

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  • Method and equipment for preparing material with multi-color oxide film on surface
  • Method and equipment for preparing material with multi-color oxide film on surface

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] 1. Pretreatment

[0044] (1) Degreasing and wax removal

[0045] Immerse the aluminum alloy base material of model 6061 in a solution of 40 g / L and a temperature of 60 °C for 5 minutes and then take it out , Wash the alloy degreasing powder on the surface of the substrate with water.

[0046] (2) Alkali etching and neutralization

[0047] The base material after degreasing and wax removal was immersed in a sodium hydroxide solution with a concentration of 60 g / L at 70°C for 20 seconds, and then immediately immersed in water to clean the residual alkali on the surface of the base material. Then the substrate is immersed in the Top Desmut N-20 (Hangzhou Aoye Technology Industrial Co., Ltd.) solution with a pH of 100 g / liter at 25° C. for 10 minutes, and immediately immersed in water to clean the residual TopDesmut N-20 on the surface of the substrate. 20 solution.

[0048] (3) chemical polishing

[0049] The base material after alkali etching and neutralization is im...

Embodiment 2

[0062] According to the method described in Example 1, after pretreatment, anodic oxidation, and dyeing pretreatment were carried out on the aluminum alloy substrate of model 6061, the material A2 with a multicolor oxide film was prepared. The difference was that the preparation had a multicolor oxide film (1) In water washing, drying and coloring, when washing, the pressure of spraying is 0.3MPa, and the time of spraying and washing is 40 seconds; when drying, the temperature of air flow is 30°C, and the speed of air flow is 5 m / s, the drying time is 10 minutes.

Embodiment 3

[0064]According to the method described in Example 1, after pretreatment, anodic oxidation, and dyeing pretreatment were carried out on the aluminum alloy substrate of model 6061, the material A3 with a multicolor oxide film was prepared. The difference was that the preparation had a multicolor oxide film (1) During washing, drying and coloring, when washing, the spray pressure is 0.4MPa, and the spray washing time is 20 seconds; when drying, the temperature of the air stream is 40°C, and the speed of the air stream is 10 m / s, the drying time is 3 minutes.

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Abstract

The invention provides a method for preparing a material with a multi-color oxide film on the surface. The method sequentially comprises the steps of washing, drying and coloring for a base material provided with an anodic oxide film on the surface, wherein the method for coloring adopts printing by a printer. The invention also provides equipment for preparing the material with the multi-color oxide film on the surface. Compared with the prior method needing to etch after a plurality of times of anodic oxidation to obtain the multi-color effect, the method can simply obtain the needed multi-color effect by directly coloring by printing with the printer on a one-time anodic oxide film; moreover, the material with the multi-color oxide film on the surface prepared by the method has better effects on gloss, abrasion resistance, corrosion resistance, surface roughness, color test and appearance than that of the material with the multi-color oxide film on the surface prepared by the priormethod; and in addition, the method of the invention avoids to perform alkaline etching, ink shielding and ink baking, and is friendly to the environment.

Description

technical field [0001] The invention relates to a preparation method of a material with multicolor oxide film on the surface and equipment for preparing the material with multicolor oxide film on the surface. Background technique [0002] The preparation method of the colored oxide film on the surface of aluminum or aluminum alloy and other substrates is to anodize the aluminum or aluminum alloy and other substrates in sulfuric acid to form an anodic oxide film, and then carry out dyeing treatment in a solution containing organic dyes. , so that the dye enters the pores of the oxide film, and then through the sealing treatment, the surface of the aluminum or aluminum alloy and other substrates has various colors. However, this method can only form a single color and cannot meet people's needs for multi-color oxide films. At present, there are two main methods for preparing multi-color oxide films on the surface of aluminum or aluminum alloys: [0003] 1. Degreasing and waxi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25D11/14C25D11/18C25D11/24
Inventor 高春楠陆平李爱华崔小路
Owner BYD CO LTD
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