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Anti-ice vertical stabilizer leading edge assembly

A vertical tail, anti-icing technology, applied in aircraft parts, coatings, pre-treated surfaces, etc., can solve the problem of not fully meeting the safety requirements of aircraft surface anti-icing

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 performance of most of the current low surface energy hydrophobic coatings cannot fully meet the safety requirements for anti-icing of aircraft surfaces.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0020] The vertical tail leading edge assembly according to the present invention comprises a vertical tail leading edge housing and an anti-icing coating positioned outside the housing, the anti-icing coating comprises a primer and a finish paint, and the primer is a polyurethane primer, a finish paint It is an organofluorosilicon modified acrylate coating. Preferably, the dry film thickness of the primer and topcoat is 18 microns and 40 microns, respectively. Preferably, the leading edge of the vertical empennage referred to in the present invention refers to the front part of the empennage projected on the front 1 / 5 range of the chord length. More preferably, the thickness of the anti-icing coating on the leading edge shell is not uniform, for example, it gradually becomes thinner from the front end of the empennage to the rear or gradually becomes thicker and then gradually thinner, which can not only improve the anti-icing characteristics but also reduce the Influence on...

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Abstract

The invention discloses an anti-icing vertical tail front edge assembly, comprising a vertical tail front edge shell and an anti-icing coating outside the shell, wherein the anti-icing coating comprises undercoat and finishing coat, the undercoat is polyurethane undercoat, and the finishing coat is organic fluorosilicone modified acrylate coating; the dry film thicknesses of the undercoat and the finishing coat are respectively 10 microns and 40 microns; and the organic fluorosilicone modified acrylate coating comprises the following components in percentage by weight: 55-65% of organic fluorosilicone modified acrylic resin, 20-25% of color fillers, 3% of nano titanium dioxide, 3% of nano zinc oxide, 1% of leveling agent, 0.8% of defoaming agent, 1.2% of dispersant, 0.5% of catalyst and 3-5% of solvent. The anti-icing vertical tail front edge assembly disclosed by the invention can effectively reduce the formation of ice layers on the vertical tail front edge and is beneficial to falling off of the formed ice layers.

Description

technical field [0001] The invention relates to an anti-icing vertical tail leading edge assembly. Background technique [0002] In today's world, airplanes have gradually become a means of transportation that people pay more and more attention to because of their fast and safe features. However, when the aircraft flies at subsonic speeds below a certain critical Mach number in icing weather conditions, the windward surfaces of some components, such as the leading edge of the vertical tail, will freeze due to the impact and accumulation of water droplets in the atmosphere. A large number of accidents and studies have shown that even a small amount of ice accumulation on key parts of the aircraft will lead to a decrease in the lift of the aircraft and an increase in flight resistance, which will lead to deterioration of the aerodynamic qualities of the aircraft such as maneuverability and stability. Especially when the aero-engine is under a certain temperature and humidity ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B32B27/08B32B27/06B32B27/40B32B33/00B64C1/00C09D151/08C09D7/12C08F283/12B05D1/38B05D1/02B05D3/12
Inventor 张俊
Owner LIYANG TECH DEV CENT