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Cleaning agent for aluminum alloy profile micro arc oxidation pretreatment and preparation method thereof

An aluminum alloy profile, micro-arc oxidation technology, applied in the direction of electrolytic coatings, surface reaction electrolytic coatings, coatings, etc., can solve the problems of large environmental hazards for operators, shortening the service life of electrolytes, and unfavorable promotion and use, and achieves good results. The effect of anti-oil re-precipitation, improving cleaning ability and stability, and rapid washing and degreasing ability

Active Publication Date: 2019-01-04
广东中联邦精细化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in actual operation, if micro-arc oxidation is carried out directly without pretreatment or after simple washing and drying, the residual oil on the surface of the aluminum alloy profile will enter the electrolyte of micro-arc oxidation, and the electrolyte will be polluted and turbid, which will seriously shorten the electrolytic process. The service life of the solution; if the aluminum alloy profile is chemically pretreated by the pretreatment process of ordinary anodic oxidation, there will be many procedures, cumbersome operation, high cost, and more strong acid and strong alkali reagents will be used, which will cause great harm to operators and the environment. Good for promotion

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] The cleaning agent for micro-arc oxidation pretreatment of aluminum alloy profiles in this embodiment is composed of components with the following concentrations: sodium citrate 1.5g / L, sodium metasilicate 2.8g / L, sodium borate 0.5g / L, dipropylene glycol 3.0g / L, EDTA-2Na 1.0g / L, fatty alcohol polyoxyethylene ether 0.7g / L, nonylphenol polyoxyethylene ether 0.7g / L, triethanolamine oleic acid soap 0.3g / L, lauryl Dimethyl amine oxide 0.8g / L, balance is water.

[0028] The preparation method of the cleaning agent for the micro-arc oxidation pretreatment of aluminum alloy profiles in this embodiment comprises the following steps:

[0029] 1) Take the dipropylene glycol of formula quantity and mix with the water that accounts for 1 / 3 of total amount, obtain mixed solvent;

[0030] 2) Heat the mixed solvent obtained in step 1) to 50°C. Under the condition of heat preservation, mix the formula amount of fatty alcohol polyoxyethylene ether, nonylphenol polyoxyethylene ether, tri...

Embodiment 2

[0040] The cleaning agent for the micro-arc oxidation pretreatment of aluminum alloy profiles in this embodiment consists of components with the following concentrations: sodium citrate 1.7g / L, sodium metasilicate 2.7g / L, sodium borate 0.4g / L, dipropylene glycol 3.5g / L, EDTA-2Na 0.9g / L, fatty alcohol polyoxyethylene ether 0.8g / L, nonylphenol polyoxyethylene ether 0.6g / L, triethanolamine oleic acid soap 0.4g / L, lauryl Dimethyl amine oxide 0.7g / L, balance is water.

[0041] The preparation method of the cleaning agent for the micro-arc oxidation pretreatment of aluminum alloy profiles in this embodiment comprises the following steps:

[0042] 1) Take the dipropylene glycol of formula quantity and mix with the water that accounts for 1 / 2 of total amount, obtain mixed solvent;

[0043] 2) Heat the mixed solvent obtained in step 1) to 50°C. Under the condition of heat preservation, mix the formula amount of fatty alcohol polyoxyethylene ether, nonylphenol polyoxyethylene ether, tr...

Embodiment 3

[0053] The cleaning agent for the micro-arc oxidation pretreatment of aluminum alloy profiles in this embodiment is composed of the following components: sodium citrate 2.0g / L, sodium metasilicate 2.6g / L, sodium borate 0.5g / L, dipropylene glycol 4.0g / L, EDTA-2Na 0.8g / L, fatty alcohol polyoxyethylene ether 0.6g / L, nonylphenol polyoxyethylene ether 0.8g / L, triethanolamine oleic acid soap 0.4g / L, lauryl Dimethyl amine oxide 0.7g / L, balance is water.

[0054] The preparation method of the cleaning agent for the micro-arc oxidation pretreatment of aluminum alloy profiles in this embodiment comprises the following steps:

[0055] 1) Take the dipropylene glycol of formula quantity and mix with the water that accounts for 1 / 2 of total amount, obtain mixed solvent;

[0056] 2) Heat the mixed solvent obtained in step 1) to 45°C. Under the condition of heat preservation, mix the formula amount of fatty alcohol polyoxyethylene ether, nonylphenol polyoxyethylene ether, triethanolamine ole...

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Abstract

The invention relates to a cleaning agent for aluminum alloy profile micro arc oxidation pretreatment and a preparation method thereof. The cleaning agent comprises 1.5-2.0g / L of sodium citrate, 2.6-2.8g / L of sodium metasilicate, 0.4-0.5g / L of sodium borate, 3.0-4.0g / L of diprophylene glycol, 0.8-1.0g / L of EDTA-2Na, 0.6-0.8g / L of fatty alcohol polyoxyethylene ether, 0.6-0.8g / L of alkylphenol polyoxyethylene ether, 0.3-0.4g / L of triethanolamine oleic soap and 0.6-0.8g / L of dodecyl dimethyl amine oxide. The alkaline water-based cleaning agent has stable and quick wash-deoiling ability, does notcorrode aluminum alloy profiles, is stable in property, high in oil stain assimilating capacity, good in deoiling effect, long in service life, free of strong acid, strong alkali and phosphorus element, low in cost, short in cleaning time and suitable for aluminum alloy profile micro arc oxidation pretreatment.

Description

technical field [0001] The invention belongs to the technical field of surface treatment of aluminum alloy profiles, and specifically relates to a cleaning agent for micro-arc oxidation pretreatment of aluminum alloy profiles, and also relates to a preparation method of the cleaning agent for micro-arc oxidation pretreatment of aluminum alloy profiles. Background technique [0002] Aluminum is one of the six most widely distributed metals in nature, accounting for about 8.0% of the total mass of the earth's crust. It has low density, low melting point, and is easy to process and can be made into various profiles; however, pure aluminum has low strength and is not suitable for making Structural materials. After long-term production practice and scientific research, people gradually strengthen aluminum by adding alloy elements and using heat treatment to obtain a series of aluminum alloys. Aluminum alloys can maintain high strength while maintaining the advantages of pure alum...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23G1/22C25D11/16
CPCC23G1/22C25D11/026C25D11/16
Inventor 魏科峰
Owner 广东中联邦精细化工有限公司
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