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A method for zinc alloy anodic oxidation

An anodizing and anodizing film technology, applied in anodizing, superimposed layer plating, metal material coating process, etc., can solve problems such as color and reliability limitations, improve product competitiveness, and improve appearance and texture , Improve the effect of texture

Active Publication Date: 2019-04-02
四川苏格通讯技术有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, the most commonly used surface treatment processes for zinc alloys are water plating and electroplating, and their color and reliability are relatively limited.

Method used

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  • A method for zinc alloy anodic oxidation

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0063] 1. Prepare the first aluminum film on the surface of the zinc alloy by magnetron sputtering: use pure aluminum as the target material, and the air pressure is 8×10 -2 Pa, the deposition time is 120 seconds; the thickness of the first aluminum film is 300nm;

[0064] 2. Prepare the second aluminum film by resistance heating evaporation on the surface of the first aluminum film; the vacuum chamber pressure in the resistance heating evaporation is 8×10 -2 Pa, the deposition time is 30 seconds; the thickness of the second aluminum film is 15 μm;

[0065] 3. Pretreatment of the aluminum film;

[0066] Degreasing, water washing, alkali washing, double water washing, neutralization, water washing, chemical polishing, water washing, neutralization, and triple water washing are carried out in sequence;

[0067] 4. Anodizing:

[0068] Using sulfuric acid as the electrolyte, the concentration of sulfuric acid is 150g / L; the temperature of the anodizing tank is 15°C, and the tim...

Embodiment 2

[0073] 1. Prepare the first aluminum film on the surface of the zinc alloy by magnetron sputtering;

[0074] The magnetron sputtering coating equipment is used for coating, with pure aluminum as the target material, and the air pressure is 8×10 -2 Pa, the deposition time is 60 seconds; the thickness of the first aluminum film is 200nm;

[0075] 2. Prepare the second aluminum film by resistance heating evaporation on the surface of the first aluminum film; the vacuum chamber pressure in the resistance heating evaporation is 8×10 -2 Pa, the deposition time is 30 seconds; the thickness of the second aluminum film is 22 μm;

[0076] 3. Pretreatment of the aluminum film;

[0077] Degreasing, water washing, alkali washing, double water washing, neutralization, water washing, chemical polishing, water washing, neutralization, and triple water washing are carried out in sequence;

[0078] 4. Anodizing:

[0079] Sulfuric acid is used as the electrolyte, the concentration of sulfuri...

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Abstract

The application relates to the technical field of alloy treatment processes, in particular to a method for anodic oxidizing of zinc alloy. The method at least comprises the following steps: preparing an aluminum film on the surface of the zinc alloy; carrying out anode oxidization on the surface of the aluminum film, and carrying dyeing and hole sealing treatment to obtain an anode oxidizing film. According to the application, the aluminum film is prepared on the surface of the zinc alloy, so that anode oxidization to the surface of the zinc alloy is realized through anode oxidization to an aluminum layer. By adopting different colouring agents, a multi-color oxidization effect on the surface of the zinc alloy is realized; moreover, the oxidized film is uniform in luster and full in film layer, is good in appearance quality, improves the quality of a zinc alloy product, and improves the competitiveness of the product.

Description

technical field [0001] The application relates to the technical field of alloy treatment technology, in particular, to a method for anodic oxidation of zinc alloy. Background technique [0002] Zinc alloy is an alloy composed of zinc element and other metal elements. Often added alloying elements are aluminum, copper, magnesium, cadmium, lead, titanium and other low-temperature zinc alloys. At present, the most commonly used surface treatment processes for zinc alloys are water plating and electroplating, and their color and reliability are relatively limited. Anodizing is the most commonly used surface treatment process for aluminum and aluminum alloys. The anodized film of aluminum and aluminum alloys has a series of superior properties, such as good corrosion resistance, hardness and wear resistance, decorability, organic coating and electroplating Layer adhesion, electrical insulation, transparency, functionality, etc. Compared with water plating and electroplating, t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C25D11/04C25D11/18C23C14/35C23C14/16C23C14/24C23C28/00
CPCC23C14/16C23C14/165C23C14/24C23C14/35C23C28/322C23C28/345C25D11/04C25D11/18
Inventor 陈颖董小林
Owner 四川苏格通讯技术有限公司
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