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An ice protection horizontal tail leading edge assembly

A technology of horizontal tail and leading edge, applied in aircraft parts, coatings, layered products, etc., can solve the problem of not fully meeting the safety requirements of anti-icing on the surface of aircraft

Active Publication Date: 2015-12-02
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 horizontal stabilizer leading edge assembly according to the present invention comprises a horizontal stabilizer leading edge casing and an anti-icing coating located outside the casing, the anti-icing coating including a primer and a topcoat, the primer being a water-based inorganic zinc-rich primer , The topcoat is organic fluorosilicon modified acrylate coating. Preferably, the dry film thickness of the primer and topcoat are 12 microns and 35 microns, respectively. Preferably, the leading edge of the horizontal stabilizer referred to in the present invention refers to the front part of the stabilizer 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 non-uniform, for example, it gradually becomes thinner from the front end of the rear wing to the rear, or gradually thickens and then gradually becomes thinner, so that the anti-icing property can be improved and the thickness ...

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Abstract

An ice protection tailplane leading-edge assembly comprises a tailplane leading-edge housing and an anti-icing coating positioned outside the housing. The anti-icing coating comprises a primer and a finish paint. The primer is a waterborne inorganic zinc-rich primer. The finish paint is an organic fluorine-silicon modified acrylate coating. Dry film thicknesses of the primer and the finish paint are respectively 12 micrometers and 35 micrometers. The organic fluorine-silicon modified acrylate coating comprises: by weight, 55-65% of organic fluorine-silicon modified acrylic resin, 20-25% of pigment and filler, 3% of nanosilicon dioxide, 3% of nanometer aluminium oxide, 1% of a levelling agent, 0.8% of an antifoaming agent, 1.2% of a dispersant, 0.5% of a catalyst and 3-5% of a solvent. According to the tailplane leading-edge assembly, formation of an ice layer on the tailplane leading-edge can be minimized effectively. In addition, the tailplane leading-edge assembly is beneficial to shedding of an ice layer which has already formed.

Description

technical field [0001] The present invention relates to an ice protection horizontal stabilizer leading edge assembly. Background technique [0002] In today's world, aircraft has gradually become a means of transportation that people pay more and more attention to because of its fast and safe characteristics. However, when an aircraft is flown at subsonic speeds less than a certain critical Mach number in icing weather conditions, the windward surfaces of certain components, such as the leading edge of the horizontal stabilizer, can 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 accretion in the key parts of the aircraft will lead to a decrease in the lift of the aircraft and an increase in the flight resistance, thereby causing the deterioration of aerodynamic qualities such as the handling and stability of the aircraft. In particular, under certain temperatu...

Claims

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Application Information

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