Oxidation method for high-hardness high-gloss aluminum and aluminum alloy ceramic texture

A high-gloss, high-hardness technology, used in anodizing, electrolytic coatings, surface reaction electrolytic coatings, etc., can solve problems such as wrinkling of aluminum or aluminum alloy products, improve hardness and surface gloss, and overcome wrinkling. , the effect of high wear resistance

Inactive Publication Date: 2010-02-03
深圳市宝安区福永祥兴五金制品厂
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  • Abstract
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Problems solved by technology

However, after a certain period of time, wrinkling will appear on the surface of aluminum or aluminum alloy products, which cannot effectively solve the problem of further improving the hardness and gloss of the oxide film layer, and obtaining the surface effect of aluminum or aluminum alloy products with better performance.

Method used

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Embodiment Construction

[0032] The present invention will be further described below in conjunction with the accompanying drawings and preferred embodiments.

[0033] First, the aluminum or aluminum alloy products are subjected to surface cleaning treatments such as grinding and polishing, degreasing, chemical polishing, etc., and then placed in an anodizing solution at a temperature of -10 to 10 degrees Celsius and a voltage of 15 to 30 volts for oxidation.

[0034] The anodic oxidation solution uses a sulfuric acid solution with a concentration of 2%.

[0035] The oxidation time is 1 to 3 hours. After the oxidation step is completed, an oxide film layer with a thickness of 15 to 50 microns will be formed on the surface of the aluminum or aluminum alloy product.

[0036] Then wash, and then place the aluminum or aluminum alloy product in a dyeing solution at room temperature for dyeing for 10 to 60 minutes.

[0037] After dyeing, put the aluminum or aluminum alloy product into a steam sealing furna...

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Abstract

The invention provides an oxidation method for high-hardness high-gloss aluminum and aluminum alloy ceramic texture. The method comprises the following steps: oxidizing: putting an aluminum product tobe processed in an anodic oxidation solution; applying an oxidation voltage to form an oxide film layer on the surface of the aluminum product; keeping the anodic oxidation solution at a balanced temperature of 10 DEG C below zero to 10 DEG C; sealing and steaming: putting the aluminum product with the oxide film layer in a steam-closing device; and processing the aluminum product with steam. Compared with the prior art, the invention has the advantages that the hardness and the surface gloss of the oxide film layer of the aluminum or aluminum alloy product is further improved, and a crinklephenomenon is overcome so that the produced aluminum product has higher wearing resistance, corrosion resistance and decoration.

Description

technical field [0001] The invention relates to an oxidation method of high hardness and high gloss aluminum and aluminum alloy ceramic texture. Background technique [0002] At present, aluminum and aluminum alloy products are usually surface treated by electrochemical anodic oxidation or chemical oxidation, so that the products have certain wear resistance and corrosion resistance, and have certain decorative properties. Among them, commonly used oxidation solutions include sulfuric acid, chromic acid, etc., and the commonly used temperatures are between 15 and 20 degrees Celsius. And the concentration of sulfuric acid solution is between 15%-25%. At the same time, the absorption of the oxide film layer formed by aluminum and aluminum alloy can be used to absorb organic or inorganic dyeing liquid, so as to achieve the effect of dyeing. [0003] However, due to the limitations of the process, the thickness of the oxide film layer on the surface of aluminum and aluminum al...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25D11/04C25D11/08C25D11/18
Inventor 赖泱祥
Owner 深圳市宝安区福永祥兴五金制品厂
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