Environment-friendly constant-temperature hole sealing agent for aluminum and aluminum alloy and hole sealing technique thereof
A technology of aluminum alloy and sealing agent, applied in the direction of electrolytic coating, surface reaction electrolytic coating, coating, etc., can solve the problems of uneven surface of aluminum workpiece, harsh sealing conditions, loss of gloss of sealing film, etc. Good stability and penetration effect, low requirements for sealing conditions, and compact sealing film
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Embodiment 1
[0023] An environment-friendly room-temperature sealing agent for aluminum and aluminum alloys, based on the total weight, including the following components in weight percentages: 5% magnesium acetate, 0.5% cobalt acetate, 5% tripropylene glycol methyl ether, and 8% polyvinylpyrrolidone , fatty acid methyl ester 3%, hydroxyalkylphenol polyoxyethylene ether 4%, accelerator 1%, sodium citrate 2%, boric acid 2%, and the balance is deionized water. Among them, the accelerator is an aliphatic derivative, and the R in its molecular structural formula 1 is hydroxyethyl, R 2 is hydroxyethyl, R 3 is amino, R 4 is methyl, R 5 is methyl, n=1.
[0024] The sealing process of the above-mentioned aluminum and aluminum alloy environmental protection normal temperature sealing agent comprises the following steps:
[0025] (1) Anodize the aluminum workpiece after pretreatment to form a 10 μm thick oxide film;
[0026] (2) Immerse the aluminum product workpiece with the oxide film layer ...
Embodiment 2
[0032] An environment-friendly room-temperature sealing agent for aluminum and aluminum alloys, based on the total weight, including the following components in weight percentages: 8% magnesium acetate, 1% cobalt acetate, 8% tripropylene glycol methyl ether, fatty alcohol polyoxyethylene ether 10%, sodium dodecyl diphenyl ether disulfonate 3%, accelerator 1%, tartaric acid 2%, sodium tripolyphosphate 2%, and the balance is deionized water. Among them, the accelerator is an aliphatic derivative, and the R in its molecular structural formula 1 is hydroxyethyl, R 2 is hydroxyethyl, R 3 is amino, R 4 is methyl, R 5 is methyl, n=1.
[0033] The sealing process of the above-mentioned aluminum and aluminum alloy environmental protection normal temperature sealing agent comprises the following steps:
[0034] (1) Anodize the aluminum workpiece after pretreatment to form a 10 μm thick oxide film;
[0035] (2) Immerse the aluminum product workpiece with the oxide film layer in the...
Embodiment 3
[0041] An environment-friendly room-temperature sealing agent for aluminum and aluminum alloys, based on the total weight, including the following components in weight percentages: 10% magnesium acetate, 1.5% cobalt acetate, 8% tripropylene glycol methyl ether, cetylbenzenesulfonate Sodium acid 5%, fatty acid methyl ester 3%, hydroxyalkylphenol polyoxyethylene ether 7%, thiourea 1%, polyethylene glycol 2%, acetic acid 2%, sodium hexametaphosphate 2%, the balance is deionized water. Among them, the accelerator is an aliphatic derivative, and the R in its molecular structural formula 1 is a hydrogen atom, R 2 is methyl, R3 is hydroxyl, R 4 is methyl, R 5 For amino, n=2.
[0042] The sealing process of the above-mentioned aluminum and aluminum alloy environmental protection normal temperature sealing agent comprises the following steps:
[0043] (1) Anodize the aluminum workpiece after pretreatment to form a 12 μm thick oxide film;
[0044] (2) Immerse the aluminum product ...
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