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Aluminum cover oxidation process

An oxidation process and aluminum cover technology, which is applied in the direction of anodic oxidation, electrolytic coating, surface reaction electrolytic coating, etc., can solve the problems of the reduction of the oxidation treatment effect of the aluminum cover and the influence of the current density of the aluminum cover, etc., so as to achieve good sealing and coloring effect and reduce Grease stains, fade-reducing effects

Active Publication Date: 2019-07-05
浙江祥可铝塑包装有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The above-mentioned existing technical solutions have the following defects: in the process of oxidizing and coloring the aluminum cover, it is necessary to pre-treat the aluminum cover to remove impurities such as oil stains on the aluminum cover. Usually, an alkaline cleaning solution is used to remove the oil stains, but Alkaline cleaning solution will corrode the surface of the aluminum cover in a small amount after removing oil stains, and form a small amount of aluminum hydroxide attached to the aluminum cover, thus affecting the current density during the electrolytic oxidation of the aluminum cover and reducing the oxidation treatment effect of the aluminum cover

Method used

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  • Aluminum cover oxidation process

Examples

Experimental program
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Effect test

Embodiment 1

[0050] An aluminum cover oxidation process disclosed by the invention comprises the following steps:

[0051] Early preparation:

[0052] The first additive configuration: 3% of sodium molybdate, 10% of water-soluble phosphate, 3% of sodium borate and 84% of water are uniformly mixed by weight percentage.

[0053] Modified degreasing liquid configuration: 30 parts of sodium carbonate, 20 parts of trisodium phosphate, 1 part of sodium metasilicate, 1 part of triethanolamine oleate, 10 parts of the first auxiliary agent, and 3 parts of trisodium citrate in parts by weight , 10 parts of auxiliary agent, 7 parts of ethanol, 10 parts of water softener and 80 parts of water are mixed evenly for later use.

[0054] Configuration of sealing agent: Mix 30 parts of triethanolamine, 1 part of fatty alcohol polyoxyethylene ether, 20 parts of sodium naphthalenesulfonate, 5 parts of sodium acetate, 1 part of chelating agent and 0.5 part of fading inhibitor in parts by weight.

[0055] Ste...

Embodiment 1

[0085] The difference between Examples 10-17 and Example 1 is that the components of the modified oil removal solution are listed in the following table in parts by weight:

[0086]

[0087] The difference between Embodiment 18-21 and Embodiment 1 is: the components of the sealing agent are calculated as the following table in parts by weight:

[0088]

[0089] The difference between embodiment 22-25 and embodiment 1 is: described degreasing time is counted as following table:

[0090] Example Degreasing time Example 22 185 Example 23 190 Example 24 195 Example 25 200

[0091] The difference between Examples 26-29 and Example 1 is that the components of the modified oil removal solution are listed in the following table in parts by weight:

[0092] Example temperature Example 26 30 Example 27 35 Example 28 40 Example 29 45

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Abstract

The invention discloses an aluminum cover oxidation process. The aluminum cover oxidation process comprises the following steps that S1, pretreatment is carried out on an aluminum cover, wherein (1) the aluminum cover to be treated is placed into a modified degreasing liquid for degreasing, (2) the aluminum cover subjected to degreasing is placed into an ultrasonic cleaning machine to be cleaned by using hot water, and (3) the aluminum cover is dried; S2, aluminum cover oxidation is carried out, wherein (1) the aluminum cover subjected to the pretreatment is fed into concentrated sulfuric acidfor electrolytic oxidation treatment, (2) the aluminum cover subjected to the electrolytic oxidation is cleaned by using cleaning water, and (3) the cleaned aluminum cover is dried; S3, the oxidizedaluminum cover is placed into a coloring agent for dyeing; S4, the colored aluminum cover is placed into a sealing agent for sealing; and S5, the sealed aluminum cover is cleaned and dried, and then the finished aluminum cover subjected to oxidation and sealing is obtained through the five steps. The aluminum cover oxidation process has the advantages that a base layer of the aluminum cover can beprotected against being corroded during degreasing, and then the electric oxidation efficiency of the aluminum cover is improved.

Description

technical field [0001] The invention relates to the technical field of aluminum product processing, in particular to an aluminum cover oxidation process. Background technique [0002] Aluminum products are widely welcomed by the public because of their metallic luster and texture. The nature of aluminum itself makes aluminum products popular in the field of decorative bottles and cosmetic bottles. [0003] The equipment used in the production process of aluminum caps in the prior art includes shearing machine, stamping machine, trimming machine, polishing machine, oxidation pool, dyeing pool and drying machine, etc.; the operation steps include: S1. S2, stamping and shaping the cut aluminum sheet by a punching machine; S3, trimming the end face of the shaped aluminum cover by a trimming machine; S4, the trimmed aluminum cover enters a polishing machine for polishing and brightening ; S5, the polished aluminum cover enters the oxidation tank for oxidation and coloring; S6, ...

Claims

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Application Information

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IPC IPC(8): C25D11/16C25D11/08C25D11/24C23G1/26C23G3/00
CPCC23G1/26C23G3/00C25D11/08C25D11/16C25D11/24C25D11/246
Inventor 朱信祥
Owner 浙江祥可铝塑包装有限公司
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