Anodized aluminum material

A technology of anodizing and anodizing film, applied in anodizing, electrolytic coating, surface reaction electrolytic coating, etc., can solve problems such as unfavorable electroplating process, no public etching method, non-uniform corrosion, etc., achieve simple and easy positioning corrosion, The effect of good wash-off and high solubility
CN111172575AActive Publication Date: 2020-05-19创隆实业(深圳)有限公司
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
创隆实业(深圳)有限公司
Publication Date
2020-05-19

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Abstract

The invention provides an anodized aluminum material. A porous layer and a shielding layer are subjected to a selective adsorption reaction through gamma-chloropropyl trimethylsilane, and a subsequentalkaline corrosion reaction can effectively etch the shielding layer at the bottom of an anodized film porous channel, so that the conductivity of the anodized aluminum material is effectively improved.
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Description

technical field

[0001] The invention relates to a method for fixed-point corrosion of the shielding at the bottom of an anodic oxidation channel by a chemical acid agent, which belongs to the field of electrochemically preparing anodic oxidation film aluminum materials without shielding layers, and is especially suitable for the application of improving the bonding force between aluminum materials and electroplated metals.

[0002] technical background

[0003] Aluminum or aluminum alloy anodizing refers to the process of immersing aluminum or aluminum alloy in a suitable electrolyte as an anode for electrification, and forming an oxide film (Al2O layer) on the surface of aluminum or aluminum alloy. The existence of this layer of oxide film can improve the corrosion resistance of aluminum alloy. At the same time, with the help of the special structure of the oxide film and the later treatment process, for example, the anodic oxide film can also be combined with surface paintin...

Claims

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