Surface treatment method for aluminum alloy material

A technology of aluminum alloy material and surface treatment, applied in the direction of metal material coating process, etc., can solve the problem that the treatment effect cannot keep up with the demand, environmental pollution, etc., and achieve the effect of good bonding, improving bonding strength and enhancing activity.

Inactive Publication Date: 2018-04-20
安徽省万帮新型建材科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the passivation solution used on the surface of aluminum alloys on the market is basically composed of trivalent chromium, hexavalent chromium, or rare earth modification combined with strong oxidants. The former two are heavy metals, and there are widespread environmental pollution problems. Environmental pollution has improved, but it still cannot be completely solved
And with the continuous improvement of design and production requirements, the treatment effect of the existing passivation treatment methods can no longer keep up with the demand, and further improvement is urgently needed

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A surface treatment method for an aluminum alloy material, comprising the steps of:

[0025] (1) Surface pretreatment:

[0026] First use sandpaper to polish the surface of the aluminum alloy material, then rinse the surface with deionized water, and finally put it in a drying oven for 1 hour and take it out for later use;

[0027] (2) Laser treatment:

[0028] Put the aluminum alloy material processed in step (1) into the laser processor for laser scanning radiation treatment, and take it out for later use;

[0029] (3) Passivation treatment:

[0030] Put the aluminum alloy material treated in step (2) into the passivation solution for passivation treatment, heat and keep the temperature of the passivation solution at 65°C, and continue to apply ultrasonic treatment at the same time, take it out after 45 minutes for use; the passivation The solution is composed of the following parts by weight: 7 parts of fluozirconic acid, 5 parts of fluotitanic acid, 6 parts of ph...

Embodiment 2

[0040] A surface treatment method for an aluminum alloy material, comprising the steps of:

[0041] (1) Surface pretreatment:

[0042] First use sandpaper to polish the surface of the aluminum alloy material, then rinse the surface with deionized water, and finally put it in a drying oven for 1.2 hours and take it out for use;

[0043] (2) Laser treatment:

[0044] Put the aluminum alloy material processed in step (1) into the laser processor for laser scanning radiation treatment, and take it out for later use;

[0045] (3) Passivation treatment:

[0046] Put the aluminum alloy material treated in step (2) into the passivation solution for passivation treatment, heat and keep the temperature of the passivation solution at 68°C during the period, and continue to apply ultrasonic treatment at the same time, take it out after 47 minutes for use; the passivation The solution is composed of the following parts by weight: 8 parts of fluozirconic acid, 7 parts of fluotitanic acid...

Embodiment 3

[0056] A surface treatment method for an aluminum alloy material, comprising the steps of:

[0057] (1) Surface pretreatment:

[0058] First use sandpaper to polish the surface of the aluminum alloy material, then rinse the surface with deionized water, and finally put it in a drying oven for 1.5 hours and take it out for use;

[0059] (2) Laser treatment:

[0060] Put the aluminum alloy material processed in step (1) into the laser processor for laser scanning radiation treatment, and take it out for later use;

[0061] (3) Passivation treatment:

[0062] Put the aluminum alloy material treated in step (2) into the passivation solution for passivation treatment, heat and keep the temperature of the passivation solution at 70°C during this period, and continue to apply ultrasonic treatment at the same time, take it out after 50 minutes for use; the passivation The solution is composed of the following parts by weight: 9 parts of fluozirconic acid, 8 parts of fluotitanic aci...

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Abstract

The invention discloses a surface treatment method for an aluminum alloy material. The surface treatment method comprises the following steps of (1) surface pretreatment, (2) laser treatment, (3) passivating treatment and (4) drying and curing treatment. According to the surface treatment method for the aluminum alloy material, an existing surface treatment method for an aluminum alloy material isreasonably improved and optimized, the surface passivating effect of the aluminum alloy material is effectively improved, the corrosion resistance, abrasion resistance and the like of the aluminum alloy material are obviously improved, the comprehensive performance of the aluminum alloy material is perfected, and the surface treatment method has quite good application and popularization significance.

Description

technical field [0001] The invention belongs to the technical field of metal material processing, and in particular relates to a surface treatment method of an aluminum alloy material. Background technique [0002] Aluminum alloy materials are more and more widely used in daily life, architectural decoration, industrial and agricultural production and other fields, and have become one of the indispensable raw materials in modern people's life and production. Since aluminum is relatively reactive, it is important to treat its surface. Usually, a layer of chemical passivation coating is applied on the surface of aluminum and alloys, that is, passivation treatment is performed on aluminum and alloys to enhance their anti-corrosion, decoration, and use properties. At present, the passivation solution used on the surface of aluminum alloys on the market is basically composed of trivalent chromium, hexavalent chromium, or rare earth modification combined with strong oxidants. The...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C22/36C23C22/78C21D10/00
CPCC23C22/361C21D10/005C23C22/78C23C2222/20
Inventor 郭胡健孙连军胡万伟
Owner 安徽省万帮新型建材科技有限公司
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