Aluminum environment-friendly nickel-free sealing agent and preparation method and sealing method thereof

A sealing agent, environmental protection technology, applied in electrolytic coatings, surface reaction electrolytic coatings, coatings, etc., can solve problems such as environmental hazards, and achieve the effects of reduced difficulty, excellent brightness, and simple preparation methods and sealing methods.

Inactive Publication Date: 2019-05-21
OUBONE GUANGZHOU UNITED BUILDING MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The current sealing agent usually contains fluorine, nickel and other substances. After sealing the anodized film layer, a larg

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0016] Example 1:

[0017] An environmental protection nickel-free sealing agent for aluminum, comprising the following raw materials in parts by weight: 10-20 parts of lithium acetate, 0.5-1 part of sodium persulfate, 0.5-1 part of glacial acetic acid, and 30-40 parts of potassium fluoride dihydrate , 5-10 parts of sodium fluoride.

[0018] Its preparation method comprises the following steps:

[0019] 1) Add lithium acetate, sodium persulfate, and sodium fluoride to an equal amount of deionized water, stir evenly, and obtain a mixed solution;

[0020] 2) During the continuous stirring process, add the corresponding amount of glacial acetic acid and potassium fluoride dihydrate, and stir evenly.

[0021] The sealing method comprises the steps of anodic oxidation treatment of aluminum and aluminum alloys, immersion in an aluminum environmental protection nickel-free sealing agent solution after washing with water, and the temperature of the aluminum environmental protection ...

Example Embodiment

[0023] Example 2

[0024] An environmental protection nickel-free sealing agent for aluminum, comprising the following raw materials in parts by weight: 10 parts of lithium acetate, 1 part of sodium persulfate, 1 part of glacial acetic acid, 40 parts of potassium fluoride dihydrate, and 10 parts of sodium fluoride.

[0025] Its preparation method comprises the following steps:

[0026] 1) Add lithium acetate, sodium persulfate, and sodium fluoride to an equal amount of deionized water, stir evenly, and obtain a mixed solution;

[0027] 2) During the continuous stirring process, add the corresponding amount of glacial acetic acid and potassium fluoride dihydrate, and stir evenly.

[0028] The sealing method includes the steps of anodic oxidation treatment of aluminum and aluminum alloys, immersing in the aluminum environmental protection nickel-free sealing agent solution after washing with water, and the temperature of the aluminum environmental protection nickel-free sealing...

Example Embodiment

[0030] Example 3

[0031] An environmental protection nickel-free sealing agent for aluminum comprises the following raw materials in parts by weight: 20 parts of lithium acetate, 0.5 parts of sodium persulfate, 0.5 parts of glacial acetic acid, 30 parts of potassium fluoride dihydrate, and 5 parts of sodium fluoride.

[0032] Its preparation method comprises the following steps:

[0033] 1) Add lithium acetate, sodium persulfate, and sodium fluoride to an equal amount of deionized water, stir evenly, and obtain a mixed solution;

[0034] 2) During the continuous stirring process, add the corresponding amount of glacial acetic acid and potassium fluoride dihydrate, and stir evenly.

[0035] The sealing method includes the steps of anodic oxidation treatment of aluminum and aluminum alloys, immersion in an aluminum environmental protection nickel-free sealing agent solution after washing with water, and the temperature of the aluminum environmental protection nickel-free seali...

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PUM

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Abstract

The invention discloses an aluminum environment-friendly nickel-free sealing agent and a preparation method and sealing method of the aluminum environment-friendly nickel-free sealing agent. The sealing agent is prepared from, by weight, 10-30 parts of lithium acetate, 0.5-2 parts of sodium persulfate, 0.5-2 parts of glacial acetic acid, 30-50 parts of potassium fluoride dihydrate and 5-20 parts of sodium fluoride. The preparation method and sealing method of the aluminum environment-friendly nickel-free sealing agent are easy and efficient, and the aluminum environment-friendly nickel-free sealing agent contains no nickel or other controlled substance, and is environmentally friendly.

Description

technical field [0001] The invention relates to an aluminum environment-friendly nickel-free sealing agent, a preparation method and a sealing method thereof. Background technique [0002] The water-soluble sealant is a water-based system with high anti-corrosion performance and strong adhesion. It does not contain harmful substances such as formaldehyde, benzene, and heavy metals. It is beneficial to environmental protection and the physical and mental health of the operator. It becomes a transparent and bright film after drying layer, can be used as the final anti-corrosion coating, and can also be used as an anti-rust primer. The current sealing agent usually contains fluorine, nickel and other substances. After sealing the anodized film layer, a large amount of waste water, nickel and other harmful elements will be generated, which will cause serious harm to the environment. Contents of the invention [0003] The technical problem to be solved by the present invention...

Claims

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Application Information

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IPC IPC(8): C25D11/24
Inventor 吕海明
Owner OUBONE GUANGZHOU UNITED BUILDING MATERIAL CO LTD
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