Beryllium part anodizing process

A technology of anodizing and parts, applied in the direction of anodizing, etc., can solve the problems of poor corrosion resistance and insulation performance, and achieve the effects of improving wear resistance and brightness, facilitating bonding, and improving quality

Active Publication Date: 2012-11-07
XIAN AEROSPACE PRECISION ELECTROMECHANICAL INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problem of poor anticorrosion and insulation properties of beryllium parts in the prior art, the present invention provides an anodic oxidation process for beryllium parts

Method used

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  • Beryllium part anodizing process

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Embodiment Construction

[0017] A kind of beryllium part anodic oxidation process that the present invention relates to, its preferred embodiment is:

[0018] The process method includes the following implementation steps:

[0019] Step 1: Ultrasonic alcohol medium is used for organic degreasing treatment; in the existing methods, gasoline is usually used for degreasing, because the miscibility of gasoline and water is not good, and the oxidation solution cannot evenly infiltrate the parts in the subsequent oxidation process. Therefore, the present invention changes gasoline organic degreasing to ultrasonic alcohol medium degreasing, which not only solves the wettability between the part surface and the solution, but also improves the degreasing effect on the small holes and deep grooves of the parts.

[0020] Step a: chemical degreasing treatment; after organic degreasing in ultrasonic alcohol medium, chemical degreasing is carried out with chemical preparations. In order to further improve the degre...

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Abstract

The invention relates to a beryllium part anodizing process comprising the following steps: (1), deoiling by an ultrasonic alcohol medium; (2), carrying out acid dipping treatment on the deoiled beryllium part; and (3), anodizing. In the invention, the pretreatment procedure of the part is strengthened, and the chemical deoiling and acid dipping procedures are added, thus solving the problem of the wetting property of the part surface with a solution, and simultaneously improving the deoiling effect on small holes and deep grooves of the part; the formula and parameters of the acid dipping solution are determined by a large number of experiments, and the acid dipping solution can remove a natural oxide film but has a slight influence on the roughness of the part surface; and by removing the natural oxide film by a chemical method, the quality of the beryllium anode oxide film layer is improved, and an oxide film with good binding force and high quality can be generated.

Description

technical field [0001] The invention relates to an anodic oxidation process of beryllium parts. Background technique [0002] Metal beryllium is the lightest alkaline earth metal, with low density (2 / 3 of aluminum), high elastic modulus (5 times of aluminum), high specific rigidity (6.4 times of aluminum), small thermal expansion coefficient, and It has good stability and can maintain the original size of the product in the range of hundreds of degrees. Metal beryllium has become an excellent material for aircraft and missile structural parts. The main structural parts of the platform such as gyroscope, meter and platform in domestic and foreign high-precision aerospace products are all made of beryllium (RJY-40). The parts of gyroscope and meter need to have certain insulation performance and anti-corrosion decoration performance. Most foreign beryllium parts adopt passivation and anodic oxidation process to meet the needs of product performance, but the passivation proce...

Claims

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Application Information

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Patent Type & AuthorityPatents(China)
IPC IPC(8): C25D11/34
Inventor张锐张强
OwnerXIAN AEROSPACE PRECISION ELECTROMECHANICAL INST