Method for processing superhard aluminum alloy oxide film

A processing method and technology of oxide film

Inactive Publication Date: 2010-01-27
江苏锦绣铝业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the performance of the oxide film meets the GB5237 standard, and the service life is about 20 years, but this often cannot meet the requirements of customers. Customers require that the service life of aluminum profiles should be 80 years or even higher. This puts forward the requirements for aluminum alloy oxide films. higher requirements

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Embodiment one: the processing method of a kind of superhard aluminum alloy oxide film of the present invention adopts following process step:

[0021] The present invention uses 6063T5 aluminum alloy profiles as raw materials for production, and the profile number is JX18-512A, and the aluminum profiles are tied to conductive rods to ensure good electrical conduction. For mass production, it is hoisted by a crane and then enters the degreasing tank. In the degreasing tank, 30 kg of waste sulfuric acid is added to 35 tons of water to make a tank solution, so that the concentration of the waste sulfuric acid solution is 85 g / L, and the profiles are completely immersed in the solution; the degreasing treatment temperature Temperature: 21°C, degreasing treatment time: 12 minutes. After the degreasing treatment, wash with water at room temperature with tap water for 1 to 2 minutes.

[0022] After washing, hoist it into the alkali washing tank by driving a car, add 3 tons o...

Embodiment 2

[0027] Embodiment two: the processing method of a kind of superhard aluminum alloy oxide film of the present invention adopts the following process steps:

[0028] The present invention uses 6063T5 aluminum alloy profile (model number JX18-553) as the raw material for production, and binds the aluminum profile to the conductive rod to ensure good conduction. Enter the degreasing tank after hoisting with a crane, add 50 kg of waste sulfuric acid to 35 tons of water in the degreasing tank to make a tank solution, and the concentration of the waste sulfuric acid solution is: 100g / L. Degreasing temperature: 25°C, degreasing time: 7 minutes. After the degreasing treatment, wash with water at room temperature with tap water for 1 to 2 minutes.

[0029] After washing with water, hang it into the alkali washing tank, add 3 tons of caustic soda to the alkali washing tank to make a bath liquid, the concentration of sodium hydroxide solution is 60g / L, the alkali washing temperature is 6...

Embodiment 3

[0034] Embodiment three: the processing method of a kind of superhard aluminum alloy oxide film of the present invention adopts following process steps:

[0035] The present invention uses 6063T5 aluminum alloy profile (model number JX18-535) as the raw material for production, and binds the aluminum profile to the conductive rod to ensure good conduction. Enter the degreasing tank after being hoisted by a crane, add 35 kg of waste sulfuric acid to make a tank solution with 35 tons of water in the degreasing tank, and the concentration of the waste sulfuric acid solution is: 120g / L. Degreasing temperature: 25°C, degreasing time: 8 minutes. After the degreasing treatment, wash with water at room temperature with tap water for 1 to 2 minutes.

[0036] After washing with water, hang it into the alkali washing tank, add 3.1 tons of caustic soda to the 35 tons of water in the alkali washing tank to prepare a bath solution, the concentration of sodium hydroxide solution is: 185g / L,...

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Abstract

The invention relates to a method for processing a superhard aluminum alloy oxide film, which is characterized by comprising the following technical steps: binding an aluminum alloy section bar on a conducting rod and hanging the aluminum alloy section bar in a degreasing groove to carry out degreasing processing at room temperature; after the aluminum alloy section bar carries out degreasing processing, washing; hanging the washed aluminum alloy section bar in an alkali washing groove to carry out alkali washing; after the aluminum alloy section bar carries out the alkali washing, hanging the aluminum alloy section bar into a neutralization groove to carry out neutralization processing; washing the aluminum alloy section bar after neutralization processing by water; after the aluminum alloy section bar is washed by the water, hanging the aluminum alloy section bar into an oxidation groove to carry out anode oxidation processing; washing the aluminum alloy section bar after the anode oxidation processing by water; after the aluminum alloy section bar is washed by the water, hanging the aluminum alloy section bar into a hole seal groove to carry out hole seal processing; and after the aluminum alloy section bar carries out the hole seal processing, carrying out drying processing by a steam pipeline to form a finished product. The invention can improve the hardness, the abrasive resistance and the corrosion resistance of the oxide film and lead properties of the oxide film to achieve the following requirements: the microhardness is larger than or equal to 1,000HV; the abrasive resistance is tested by a method of GB / T8013.1-2007, and the abrasive loss does not exceed 10 mg; and the salt fog test resistance is tested by a method of GB / T12967.3 and reaches the ninth grade.

Description

technical field [0001] The invention relates to a treatment method for superhard aluminum alloy oxide film, belonging to the technical field of surface treatment of nonferrous metals. Background technique [0002] With the vigorous development of the aluminum processing industry, aluminum alloy anodizing has become one of the surface treatment methods for aluminum alloy profiles. The anodized film is not only wear-resistant, corrosion-resistant, and weather-resistant, but also can be painted in various beautiful and bright colors, thus greatly improving the application value of aluminum profiles. At present, the performance of the oxide film conforms to the GB5237 standard, and the service life is about 20 years, but this often cannot meet the requirements of customers. The customer requires that the service life of aluminum profiles be 80 years or even higher. This puts forward the requirements for aluminum alloy oxide film. higher requirements. Contents of the invention...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25D11/04C25D11/08C25D11/16C25D11/24
Inventor 薛健邓胜力陈晓红丁业
Owner 江苏锦绣铝业有限公司
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