Aluminum alloy surface treatment agent and treatment method

Abstract

The invention discloses an aluminum alloy surface treatment agent and a treatment method. The aluminum alloy surface treatment agent is prepared from the following components in parts by weight: 40-60 parts of nitric acid, 8-14 parts of coconut fatty acid diethanolamine, 6-9 parts of fatty methyl ester ethoxylate, 1-4 parts of alkyl phenol ethoxylates, 18-25 parts of triethylene glycol, 4-7 parts of urotropine, 2-6 parts of triethanolamine oleic soap, 5-18 parts of gelatin, 9-18 parts of sodium chloride, 6-8 parts of sodium metasilicate, 5-8 parts of an organic acid agent, 1.5-3.5 parts of a preservative and 0.5-1.5 parts of a defoamer. The treatment method mainly comprises the following steps: high pressure washing; deoiling; aluminum alloy surface treatment agent smearing; washing. The aluminum alloy surface treatment agent can be cleaned after being used for once treatment on aluminum alloy, so that the treatment process is greatly simplified, the use of acid liquid is reduced, and the economy and the environment protection performance are improved.

Description

technical field

[0001] The invention belongs to the technical field of aluminum alloys, and in particular relates to an aluminum alloy surface treatment agent and a treatment method. Background technique

[0002] Aluminum alloy is the most widely used non-ferrous metal structural material in industry, and has been widely used in aviation, aerospace, automobile, machinery manufacturing, shipbuilding and chemical industry. Aluminum will oxidize on the surface to form alumina, and these oxides must be removed beforehand during various surface treatments. The methods include manual rust removal, mechanical rust removal and sandblasting rust removal, etc., and the most common method is to use various alkali reagents to remove rust. When cleaning, different processes have different effects on the cleaning effect.

[0003] At present, the cleaning process of aluminum alloy materials is mainly to use acidic cleaning agents whose main components are sulfuric acid, hydrochloric acid...

Examples

Embodiment 1

[0021] An aluminum alloy surface treatment agent comprises the following components in parts by weight: 40 parts of nitric acid, 8 parts of coconut oil fatty acid diethanolamine, 6 parts of fatty acid methyl ester ethoxylate, alkyl 1 part of phenol polyoxyethylene ether, 18 parts of triethylene glycol, 4 parts of urotropine, 2 parts of triethanolamine oleic acid soap, 5 parts of gelatin, 9 parts of sodium chloride, 6 parts of sodium metasilicate, 5 parts of organic acid parts, 1.5 parts of preservatives, and 0.5 parts of defoamers.

[0022] Described organic acid agent comprises m-diphenylsulfonic acid, oxalic acid, maleic acid, malonic acid, n-succinic acid, maleic acid, citric acid, tartaric acid, p-diphenylsulfonic acid, o-diphenylsulfonic acid, One or more of iso-succinic acid, terephthalic acid, isophthalic acid, phthalic acid, trans-succinic acid, and organic derivatives of the aforementioned organic acids.

[0023] The preservative is selected from one of potassium sor...

Embodiment 2

[0033] An aluminum alloy surface treatment agent comprises the following components in parts by weight: 50 parts of nitric acid, 10 parts of coconut oil fatty acid diethanolamine, 8 parts of fatty acid methyl ester ethoxylate, 3 parts of alkylphenol polyoxyethylene ether, three parts 20 parts of glycol, 5 parts of urotropine, 5 parts of triethanolamine oleic acid soap, 10 parts of gelatin, 12 parts of sodium chloride, 7 parts of sodium metasilicate, 6 parts of organic acid agent, 2.5 parts of preservative, defoaming 0.8 parts of the agent.

[0034] Described organic acid agent comprises m-diphenylsulfonic acid, oxalic acid, maleic acid, malonic acid, n-succinic acid, maleic acid, citric acid, tartaric acid, p-diphenylsulfonic acid, o-diphenylsulfonic acid, One or more of iso-succinic acid, terephthalic acid, isophthalic acid, phthalic acid, trans-succinic acid, and organic derivatives of the aforementioned organic acids.

[0035] The preservative is selected from one of potas...

Embodiment 3

[0045] An aluminum alloy surface treatment agent comprises the following components in parts by weight: 60 parts of nitric acid, 14 parts of coconut oil fatty acid diethanolamine, 9 parts of fatty acid methyl ester ethoxylate, 4 parts of alkylphenol polyoxyethylene ether, three parts 25 parts of glycol, 7 parts of urotropine, 6 parts of triethanolamine oleic acid soap, 18 parts of gelatin, 18 parts of sodium chloride, 8 parts of sodium metasilicate, 8 parts of organic acid agent, 3.5 parts of preservative, defoaming 1.5 parts.

[0046] Described organic acid agent comprises m-diphenylsulfonic acid, oxalic acid, maleic acid, malonic acid, n-succinic acid, maleic acid, citric acid, tartaric acid, p-diphenylsulfonic acid, o-diphenylsulfonic acid, One or more of iso-succinic acid, terephthalic acid, isophthalic acid, phthalic acid, trans-succinic acid, and organic derivatives of the aforementioned organic acids.

[0047] The preservative is selected from one of potassium sorbate,...

technical field

[0001] The invention belongs to the technical field of aluminum alloys, and in particular relates to an aluminum alloy surface treatment agent and a treatment method. Background technique

[0002] Aluminum alloy is the most widely used non-ferrous metal structural material in industry, and has been widely used in aviation, aerospace, automobile, machinery manufacturing, shipbuilding and chemical industry. Aluminum will oxidize on the surface to form alumina, and these oxides must be removed beforehand during various surface treatments. The methods include manual rust removal, mechanical rust removal and sandblasting rust removal, etc., and the most common method is to use various alkali reagents to remove rust. When cleaning, different processes have different effects on the cleaning effect.

[0003] At present, the cleaning process of aluminum alloy materials is mainly to use acidic cleaning agents whose main components are sulfuric acid, hydrochloric acid...

Examples

Embodiment 1

[0021] An aluminum alloy surface treatment agent comprises the following components in parts by weight: 40 parts of nitric acid, 8 parts of coconut oil fatty acid diethanolamine, 6 parts of fatty acid methyl ester ethoxylate, alkyl 1 part of phenol polyoxyethylene ether, 18 parts of triethylene glycol, 4 parts of urotropine, 2 parts of triethanolamine oleic acid soap, 5 parts of gelatin, 9 parts of sodium chloride, 6 parts of sodium metasilicate, 5 parts of organic acid parts, 1.5 parts of preservatives, and 0.5 parts of defoamers.

[0022] Described organic acid agent comprises m-diphenylsulfonic acid, oxalic acid, maleic acid, malonic acid, n-succinic acid, maleic acid, citric acid, tartaric acid, p-diphenylsulfonic acid, o-diphenylsulfonic acid, One or more of iso-succinic acid, terephthalic acid, isophthalic acid, phthalic acid, trans-succinic acid, and organic derivatives of the aforementioned organic acids.

[0023] The preservative is selected from one of potassium sor...

Embodiment 2

[0033] An aluminum alloy surface treatment agent comprises the following components in parts by weight: 50 parts of nitric acid, 10 parts of coconut oil fatty acid diethanolamine, 8 parts of fatty acid methyl ester ethoxylate, 3 parts of alkylphenol polyoxyethylene ether, three parts 20 parts of glycol, 5 parts of urotropine, 5 parts of triethanolamine oleic acid soap, 10 parts of gelatin, 12 parts of sodium chloride, 7 parts of sodium metasilicate, 6 parts of organic acid agent, 2.5 parts of preservative, defoaming 0.8 parts of the agent.

[0034] Described organic acid agent comprises m-diphenylsulfonic acid, oxalic acid, maleic acid, malonic acid, n-succinic acid, maleic acid, citric acid, tartaric acid, p-diphenylsulfonic acid, o-diphenylsulfonic acid, One or more of iso-succinic acid, terephthalic acid, isophthalic acid, phthalic acid, trans-succinic acid, and organic derivatives of the aforementioned organic acids.

[0035] The preservative is selected from one of potas...

Embodiment 3

[0045] An aluminum alloy surface treatment agent comprises the following components in parts by weight: 60 parts of nitric acid, 14 parts of coconut oil fatty acid diethanolamine, 9 parts of fatty acid methyl ester ethoxylate, 4 parts of alkylphenol polyoxyethylene ether, three parts 25 parts of glycol, 7 parts of urotropine, 6 parts of triethanolamine oleic acid soap, 18 parts of gelatin, 18 parts of sodium chloride, 8 parts of sodium metasilicate, 8 parts of organic acid agent, 3.5 parts of preservative, defoaming 1.5 parts.

[0046] Described organic acid agent comprises m-diphenylsulfonic acid, oxalic acid, maleic acid, malonic acid, n-succinic acid, maleic acid, citric acid, tartaric acid, p-diphenylsulfonic acid, o-diphenylsulfonic acid, One or more of iso-succinic acid, terephthalic acid, isophthalic acid, phthalic acid, trans-succinic acid, and organic derivatives of the aforementioned organic acids.

[0047] The preservative is selected from one of potassium sorbate,...