Novel aluminum alloy and surface treatment process thereof

A technology of aluminum alloy surface and treatment process, applied in the direction of metal material coating process, anodizing, coating, etc., can solve the problems of high processing cost, limited application, easy film peeling, etc., to improve compatibility and improve adhesion. The effect of focus and good adsorption capacity

Pending Publication Date: 2021-10-01
东莞金稞电子科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Traditional stainless steel PVD materials are expensive to process, heavy and easy to peel off. Existing aluminum alloy products have great limitations in use, which greatly limits its application in the electronic product industry.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] A new type of aluminum alloy, comprising an aluminum alloy body, an anodized film layer coated on the surface of the aluminum alloy body, and a chromium carbide coating sprayed on the surface of the anodized film layer, the outer surface of the anodized film layer contains nanometer particles Pores, the pores of the nano-micropores are 5nm, and the thickness of the anodized film layer is 5μ.

[0041] The novel aluminum alloy surface treatment process includes the following steps:

[0042] S1. After hanging the aluminum alloy substrate, degrease at 45°C for 60s, then wash with water for the first time, and then pickle and remove the mold. ;

[0043] S2, using the aluminum alloy base material treated in step S1 as an anode and placing it in an electrolyte solution with a voltage of 8V to perform electrolysis for 25 minutes, then wash with water, and set aside;

[0044] S3, placing the aluminum alloy base material treated in step S2 in a surfactant solution and ultrasoni...

Embodiment 2

[0066] A new type of aluminum alloy, comprising an aluminum alloy body, an anodized film layer coated on the surface of the aluminum alloy body, and a chromium carbide coating sprayed on the surface of the anodized film layer, the outer surface of the anodized film layer contains nanometer particles Pores, the pores of the nano-micropores are 6nm, and the thickness of the anodized film layer is 6μ.

[0067] The novel aluminum alloy surface treatment process includes the following steps:

[0068] S1. After hanging the aluminum alloy substrate, degrease at a temperature of 50°C for 75s, then perform the first water wash, and then pickle and remove the mold. ;

[0069] S2, using the aluminum alloy base material treated in step S1 as an anode and placing it in an electrolyte solution with a voltage of 9V to perform electrolysis for 28 minutes, then wash it with water, and set aside;

[0070] S3, placing the aluminum alloy base material treated in step S2 in a surfactant solution...

Embodiment 3

[0092] A new type of aluminum alloy, comprising an aluminum alloy body, an anodized film layer coated on the surface of the aluminum alloy body, and a chromium carbide coating sprayed on the surface of the anodized film layer, the outer surface of the anodized film layer contains nanometer particles Pores, the pores of the nano-micropores are 7nm, and the thickness of the anodized film layer is 7μ.

[0093] The novel aluminum alloy surface treatment process includes the following steps:

[0094] S1. After hanging the aluminum alloy substrate, degrease at a temperature of 55°C for 90s, then wash with water for the first time, and then pickle and remove the mold. The pickling and mold removal time is 90s, then wash with water for the second time. ;

[0095] S2. Using the aluminum alloy substrate treated in step S1 as an anode, place it in an electrolyte solution with a voltage of 10V to perform electrolysis for 30 minutes, then wash it with water, and set it aside;

[0096] S3...

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Abstract

The invention relates to the technical field of metal surface treatment, in particular to a novel aluminum alloy and a surface treatment process thereof. The novel aluminum alloy comprises an aluminum alloy body, an anodic oxide film layer coating the surface of the aluminum alloy body and a chromium carbide coating sprayed to the surface of the anodic oxide film layer, and nano micropores are formed in the outer surface of the anodic oxide film layer; and the pore size of the nano micropores is 5-10 nm, and the thickness of the anodic oxide film layer is 5-8 mu. According to the novel aluminum alloy, the aluminum alloy body is subjected to anodic oxidation to form the anodic oxide film layer with high adsorption capacity, and the anodic oxide film layer has good adsorption capacity due to the fact that the anodic oxide film layer contains the nano-scale nano micropores, so that the binding force between the anodic oxide film layer and the chromium carbide coating is enhanced conveniently; and compared with a traditional anodic oxidation aluminum alloy, the aluminum alloy has better metal texture and decoration performance. Meanwhile, the mechanical properties such as corrosion resistance and strength of the aluminum alloy base material can be improved by overlapping the anodic oxide film layer and the chromium carbide coating.

Description

technical field [0001] The invention relates to the technical field of metal surface treatment, in particular to a novel aluminum alloy and a surface treatment process thereof. Background technique [0002] At present, aluminum alloy has been the most widely used alloy metal, especially in the computer, mobile phone and other electronic equipment industries. The application is based on the purpose, and the anodic oxidation film formed on aluminum etc. requires corrosion resistance. In order to endow these properties with surface treatment, traditional aluminum alloys are generally anodized to enhance surface hardness and decoration. The disadvantage is that traditional anodized lacks the mirror effect and metallic texture of stainless steel PVD. Traditional stainless steel PVD materials are expensive to process, heavy and easy to peel off. Existing aluminum alloy products have great limitations in use, which greatly limits their application in the electronics industry. Con...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C4/137C23C4/10C23C4/02C25F1/04C23G1/12C23C22/66C25D11/04
CPCC23C4/137C23C4/10C23C4/02C25F1/04C23G1/125C23C22/66C25D11/04
Inventor 陈赛列王学金
Owner 东莞金稞电子科技有限公司
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