Preparation method of high bonding force coating taking anodic alumina as base material

An anodized aluminum, anodic oxidation technology, applied in the direction of coating, surface reaction electrolytic coating, electrolytic coating, etc., can solve the problems of unfavorable electroplating process, undisclosed etching method, non-uniform corrosion, etc., and achieve simple and easy positioning corrosion, Good wash-off and high solubility
CN111101164AActive Publication Date: 2020-05-05ๆŽ็Ž‰้พ™
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Patent Information

Authority / Receiving Office
CN ยท China
Patent Type
Applications(China)
Current Assignee / Owner
ๆŽ็Ž‰้พ™
Publication Date
2020-05-05

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Abstract

The invention provides a preparation method of a high bonding force coating taking anodic alumina as the base material. A shielding layer at the bottom of an anode oxide film is removed to expose thealuminum metal base material, and then, electroplating monometallic treatment is carried out, and finally, combination of the anodic oxidation base material and the coating is effectively improved.
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Description

technical field

[0001] The invention relates to a method for preparing a high-binding force coating using anodized aluminum as a base material, which belongs to the field of electrochemically preparing anodized aluminum materials without shielding layers, and is especially suitable for improving the bonding force between aluminum materials and electroplated metals.

[0002] technical background

[0003] With the rapid development of science and technology and industry, people have more and more stringent requirements on metal properties. Lightweight and high-hardness metal alloy materials are widely used in related fields. Since the output of aluminum in the world is second only to iron, light metal aluminum alloys The material gets a lot of attention. Aluminum and aluminum alloy materials have low hardness, poor wear resistance, and are prone to intergranular corrosion, and a thin oxide film is easy to form on the surface of aluminum under natural conditions, and the film is...

Claims

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