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Green environmental protection surface treatment method for aluminum and aluminum alloy

An aluminum alloy surface, green and environmentally friendly technology, applied in the direction of surface reaction electrolytic coating, electrolytic coating, anodic oxidation, etc., to achieve the effects of saving energy consumption, low use concentration, and reducing degreasing temperature

Inactive Publication Date: 2012-05-16
王振宇
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

With the development of the market, all walks of life are constantly producing new products. Surface treatment is a new market that needs to be developed. The green environmental protection method of pollution is in urgent need of research and development

Method used

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Experimental program
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Effect test

Embodiment Construction

[0015] The green and environment-friendly aluminum and aluminum alloy surface treatment method of the present invention is realized by the following steps:

[0016] Degreasing treatment: wipe with absorbent cotton moistened with solvent A, after removing the oil, and then wipe with a clean cotton cloth for 2-4 times.

[0017] Chemical Treatment: Wash in Solution B and dry.

[0018] Anodizing treatment: After sandblasting or grinding, anodize in solution C, at a temperature of 30-40°C, increase the voltage from 0V to 10V within 10min, keep it for 10-20min, then increase from 10V to 50V in 3-8min, Keep for 2-7min, then wash with water, and finally dry at 500-700°C.

[0019] Solvent A is: one of trichloroethylene, ethyl acetate, acetone, butanone, and the dosage is 15-35g / L.

[0020] When the parts by weight of solution B are phosphoric acid 6-11.5, n-butanol 3-5.5, and water 15-30, it is used for phenolic-nylon bonding.

[0021] When the parts by weight of solution B are ammo...

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PUM

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Abstract

The present invention provides a green environmental protection surface treatment method for aluminum and aluminum alloy. The method comprises the following steps: a degreasing treatment: absorbent cotton is dipped in a solvent A, the resulting wet absorbent cotton is adopted to carry out wiping, a clean cotton cloth is adopted to carry out wiping 2-4 times after the grease stain is removed; a chemical treatment: the material is washed in a solution B, and then is subjected to atmospheric drying; an anodization treatment: after sand blasting or buffing, the material is placed in a solution C to carry out anodization, the voltage is increased to 10 V from 0 V within 10 minutes at a temperature of 30-40 DEG C, and is maintained for 10-20 minutes, then the voltage is increased to 50 V from the 10 V within 3-8 minutes, and is maintained for 2-7 minutes, a water washing treatment is performed, and finally a drying treatment is performed at the temperature of 500-700 DEG C. With the present invention, the purposes of good degreasing effect, low use concentration, reduction of the degreasing temperature, energy consumption reducing, and green environmental protection are achieved.

Description

technical field [0001] The invention provides a green and environment-friendly aluminum and aluminum alloy surface treatment method, which belongs to the technical field of metal treatment. Background technique [0002] During various heat treatment, mechanical processing, transportation and storage, the metal surface will inevitably be oxidized, resulting in an oxide layer with uneven thickness. At the same time, it is also susceptible to various oil pollution and adsorption of some other impurities. Oil stains and certain adsorbents, and the thinner oxide layer can be cleaned with solvents, chemically treated and mechanically treated, or directly chemically treated. For severely oxidized metal surfaces, the oxide layer is thicker, so it cannot be directly cleaned with solvents and chemically treated, but it is best to perform mechanical treatment first. Usually treated metal surfaces are highly reactive and more susceptible to re-contamination by dust, moisture, etc. Wi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25D11/16C25D11/06
Inventor 王振宇
Owner 王振宇
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