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a wing shell

A shell and wing technology, applied in the fuselage, aircraft parts, coatings, etc., can solve the problems of high VOC content, low solid content, and high cost, so as to improve flight safety, reduce flight costs, and increase service life. Effect

Active Publication Date: 2016-01-06
LIYANG TECH DEV CENT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing fluorocarbon coatings generally have defects such as insufficient crosslinking degree, high cost due to high proportion of fluorine-containing monomers, low solid content and high VOC content, resulting in environmental pollution and other defects.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0021] A wing shell comprising a skin substrate and a protective coating comprising one layer of zinc yellow acrylic polyurethane primer and two layers of fluorocarbon topcoat. The dry film thickness of the zinc yellow acrylic polyurethane primer is 18 microns, the dry film thickness of the middle fluorocarbon topcoat is 40 microns, and the dry film thickness of the outer fluorocarbon topcoat is 51 microns.

[0022] The protective coating is formed by spraying a paint on the surface of the skin substrate, and the paint includes a fluorocarbon paint. Preferably, the A component of the fluorocarbon paint includes the following components: by weight, high hydroxyl fluorine-containing acrylic resin 61- 65%, color filler 20-26%, nano-magnesia 3%, nano-titanium dioxide 3.5%, leveling agent 1%, defoamer 0.8%, dispersant 1.2%, catalyst 0.5%, solvent 3-5%. More preferably, the fluorocarbon coating A component includes the following components: by weight, high hydroxyl fluorine-containi...

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PUM

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Abstract

A wing shell comprises a covering base and a protection coat, the protection coat comprises a layer of a zinc yellow acrylic polyurethane priming paint and two layers of a fluorocarbon finish, and a component A of the fluorocarbon finish comprises a high-hydroxy fluorine-containing acrylic resin, a color filler, nanometer magnesium oxide, nanometer titanium dioxide, a leveling agent, an antifoaming agent, a dispersant, a catalyst and a solvent. The wing shell obtained in the invention can be adapted to current increasingly-demanding flight conditions, and improves the flight security.

Description

technical field [0001] The invention relates to an airfoil skin. Background technique [0002] With the application of aluminum, magnesium and other alloy materials and composite materials in the aircraft manufacturing industry, the performance of the aircraft, especially the flight speed, has been greatly improved. Now the flight speed of the aircraft can exceed 1km / s. Since the friction force on a moving object is proportional to the square of the speed, the increase in flight speed puts forward higher requirements on the performance of the aircraft shell, especially temperature resistance, UV resistance, freeze-thaw cycle resistance, and air resistance. Abrasion resistance, rain erosion resistance, etc., so it is usually necessary to install a protective coating on the wing shell of the aircraft. This coating is generally formed by spraying paint, but the existing conventional coatings are difficult to meet the increasingly stringent requirements of the current period. ....

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B32B33/00B32B27/06B64C1/00C09D133/14C09D133/16C09D7/12
Inventor 张俊
Owner LIYANG TECH DEV CENT