Method using glass beads to treat anti-rust paint layer of steel aviation part

A technology for aviation parts and glass pellets, which is applied in the direction of pretreatment surface, coating, and device for coating liquid on the surface. Effect

Active Publication Date: 2015-02-18
SHENYANG LIMING AERO-ENGINE GROUP CORPORATION
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Problems solved by technology

[0003] In order to solve the problem that the steel parts used on the above-mentioned aero-engines undergo large deformation after being baked at a high temperature of 560 degrees during the anti-rust treatment process, the present invention provides a method for treating the anti-rust paint layer of steel aeronautical parts with glass pellets

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  • Method using glass beads to treat anti-rust paint layer of steel aviation part
  • Method using glass beads to treat anti-rust paint layer of steel aviation part

Examples

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Embodiment

[0022] Example: such as figure 1 Shown, the present invention is used for typical part spraying treatment, and process step is:

[0023] Surface preparation--non-painted surface protection--sand blowing--painting--baking and curing--intermediate inspection and rework--glass shot treatment--final characteristic inspection, the details are as follows:

[0024] (1) Surface preparation process: use alkaline detergent (741) to remove oil, check the continuity of the water film after immersion for 15-20 minutes, and dry it with water-free and oil-free compressed air; for local slight pollution, acetone or alcohol is allowed Wipe to remove oil and remove pollutants on the surface of parts; put 120-220 mesh alumina sand particles into special equipment for dry blasting treatment. When blowing sand, the air pressure is 0.2-0.55MPa, and the distance from the nozzle to the part is 100-200mm;

[0025] (2) Non-painted surface protection process: Protect the area that does not need to be ...

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Abstract

The invention relates to a method using glass beads to treat an anti-rust paint layer of a steel aviation part, and belongs to the technical field of surface treatment of a paint layer material. The method comprises the following steps of surface preparation, protection of non-paint spraying surfaces, sand blasting, paint spraying, baking and curing, middle inspection and reworking, treatment by the glass beads, and final characteristic inspection. The method has the advantages that the surface of the paint layer material is treated by the glass beads according to proper parameters, the conductivity of the paint layer material is less than 15 ohms per 125mm, the property requirement on conductivity by the aviation middle-temperature aluminum anti-corrosive paint layer is completely met, the curing temperature is lowered from 560 DEG C to 300 DEG C, and the part deformation is controlled; the adhesion force of the paint layer treated by the glass beads is good, the excessive paint layer material with poor surface adhesion force can be removed from a part edge with easy warpage in the glass bead blasting process, and the risk of excessive matters in the working condition of an engine is avoided.

Description

technical field [0001] The invention relates to a method for treating the antirust paint layer of steel aviation parts with glass pellets, and belongs to the technical field of surface treatment of paint layer materials. Background technique [0002] With the rapid development of the aviation industry, the output of the engine is continuously increasing, and the aviation manufacturing and processing technology is continuously improving. The steel parts are mainly sprayed with anti-rust paint on the surface to improve their corrosion resistance and thermal shock performance, thereby prolonging their use in the aircraft engine. The service life under special working conditions expands the application space of steel parts. At present, what the aviation industry uses more is a kind of medium temperature aluminum antirust paint layer for aviation. This kind of anti-rust paint layer needs to be baked and cured at a temperature above 560 degrees Celsius to meet the corrosion prote...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B05D5/00B05D3/02B05D3/00
Inventor 苏丹侯波王艳丽
Owner SHENYANG LIMING AERO-ENGINE GROUP CORPORATION
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