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Treatment method for aluminum alloy part subjected to anodic oxidation

A treatment method, anodic oxidation technology, applied in the direction of coating, surface reaction electrolytic coating, electrolytic coating, etc., can solve the problems that the removal of organic glue cannot be determined, cannot be effectively removed, and the soaking time is difficult to control, so as to solve the problem of artificial peeling Difficult, saving manpower and time costs, easy control of process parameters

Pending Publication Date: 2022-04-26
FU TAI HUA IND SHENZHEN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in this method, it is difficult to control the immersion time of the product in the deplating solution, and it is impossible to determine whether the organic adhesive is completely removed, which may easily lead to residual adhesive layer or over-removal.
And when the organic glue used is epoxy resin AB glue, because of its excellent corrosion resistance, it cannot be effectively removed in conventional aluminum alloy stripping solution (such as Figure 4 shown)

Method used

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  • Treatment method for aluminum alloy part subjected to anodic oxidation
  • Treatment method for aluminum alloy part subjected to anodic oxidation
  • Treatment method for aluminum alloy part subjected to anodic oxidation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0057] A treatment method for anodized aluminum alloy parts, comprising the following steps:

[0058] S1: Select the laser process parameters, use laser to remove the epoxy resin AB glue on the defective aluminum alloy parts, the specific process parameters are shown in Table 1, and then wipe the laser marking parts with artificial alcohol to clean;

[0059] S2: Check the appearance of defective aluminum alloy parts after laser deglue removal in S1. If there is residual glue on the surface, perform secondary laser marking to remove residual glue according to the process parameters in S1, and then wipe the secondary laser marking part with artificial alcohol to clean;

[0060] S3: Place the aluminum alloy parts after degumming in S1 in the deplating solution for 90s, the deplating solution is 60g / L sodium hydroxide solution, the temperature is 55°C;

[0061] S4: Wash the aluminum alloy parts soaked in S2 in 340 g / L nitric acid solution (30%) at room temperature, then ultrasoni...

Embodiment 2

[0063] It is roughly the same as in Example 1, except that the process parameters of laser deglue in S1 are shown in Table 1 for details.

Embodiment 3

[0065] It is roughly the same as in Example 1, except that the process parameters of laser deglue in S1 are shown in Table 1 for details.

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Abstract

The invention discloses a treatment method for an aluminum alloy part subjected to anodic oxidation, the aluminum alloy part is a defective product subjected to dispensing, and the treatment method comprises the following steps that S1, laser glue removal is conducted, specifically, organic glue on the defective product of the aluminum alloy part is removed; s2, the aluminum alloy part obtained after glue removal in the step S1 is placed in a stripping solution to be subjected to stripping; and S3, the aluminum alloy part deplated in the S2 is cleaned and dried. According to the method, the treatment method combining laser glue removal and deplating is adopted, manual mechanical stripping glue removal or deplating solution formula adjustment is not needed, organic glue on defective aluminum alloy parts can be thoroughly removed before deplating, technological parameters are easy to control, time is short, efficiency is high, and the problem that manual stripping is difficult after the organic glue is cured can be effectively solved; and subsequent deplating is easy to control, and manpower and time cost are saved.

Description

technical field [0001] The present application relates to the technical field of deplating, and in particular to a treatment method for aluminum alloy parts after anodic oxidation. Background technique [0002] Aluminum alloy parts are usually anodized to form a layer of aluminum oxide film on its surface. The aluminum oxide film is chemically stable, resistant to oxidation and corrosion. It can prevent further oxidation of aluminum and at the same time increase the mechanical properties (such as hardness and wear resistance) of the material surface. During the assembly process of aluminum alloy parts, when there is poor dispensing (such as figure 1 shown), requires stripping and then re-anodizing. [0003] Existing treatment methods for defective aluminum alloy parts are usually to use manual mechanical peeling to remove glue, such as scraping with a blade (such as figure 2 shown), or use a hot air blower to heat and peel off (such as image 3 shown), and then perform ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25D11/18C23G1/22
CPCC25D11/18C23G1/22
Inventor 李杰徐晓波陈俊武温志林
Owner FU TAI HUA IND SHENZHEN