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Deicing pure copper coating

A pure copper and coating technology, applied in the coating, metal material coating process, fusion spraying, etc., can solve the problems of unsuitable deicing protection, poor heat transfer capacity, and complex structure of the wing, and achieve electrical conductivity Moderate performance, uniform heating, and simple operation

Inactive Publication Date: 2018-10-12
BEIJING INSTITUTE OF TECHNOLOGYGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At present, the airfoil deicing measures are often adopted as pneumatic method and electrothermal method, but the structure of these two methods is relatively complicated.
In addition, at this stage, the front and rear edges of the wings are often made of glass fiber reinforced resin-based materials, which have poor heat transfer capabilities. When using electrothermal heating, it is often necessary to heat the entire part surface evenly. Therefore, the traditional resistance wire heating method Not suitable for de-icing protection on wings

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] (1) The surface to be sprayed of the glass fiber reinforced resin substrate is first cleaned with acetone to remove the oil stain on the substrate surface; then sandblasting is performed with white jade corundum to increase the roughness of the substrate surface;

[0026] (2) The substrate processed in step (1) is mounted on the workbench, and the surface to be sprayed of the substrate is cleaned with compressed air, and the residual particles adsorbed on the surface of the substrate after sand blasting are removed;

[0027] (3) Put the copper wire with a diameter of 1.2mm into the wire feeding device, first use the arc spray gun to spray the surface to be sprayed on the substrate once to preheat, and then use the arc spray gun to spray the copper wire to the surface to be sprayed on the substrate. A pure copper coating with a thickness of 0.1mm is obtained on the substrate; among them, the current of arc spraying is 90A, and the voltage is 20V;

[0028] (4) Connect the...

Embodiment 2

[0031] (1) The surface to be sprayed of the glass fiber reinforced resin substrate is first cleaned with acetone to remove the oil stain on the substrate surface; then sandblasting is performed with white jade corundum to increase the roughness of the substrate surface;

[0032] (2) The substrate processed in step (1) is mounted on the workbench, and the surface to be sprayed of the substrate is cleaned with compressed air, and the residual particles adsorbed on the surface of the substrate after sand blasting are removed;

[0033] (3) Put the copper wire with a diameter of 1.6mm into the wire feeding device, first use the arc spray gun to spray the surface to be sprayed on the substrate once to preheat, and then use the arc spray gun to spray the copper wire to the surface to be sprayed on the substrate. A pure copper coating with a thickness of 0.12mm is obtained on the substrate; among them, the current of arc spraying is 135A, and the voltage is 32V;

[0034] (4) Connect t...

Embodiment 3

[0037] (1) The surface to be sprayed of the glass fiber reinforced resin substrate is first cleaned with acetone to remove the oil stain on the substrate surface; then sandblasting is performed with white jade corundum to increase the roughness of the substrate surface;

[0038] (2) The substrate processed in step (1) is mounted on the workbench, and the surface to be sprayed of the substrate is cleaned with compressed air, and the residual particles adsorbed on the surface of the substrate after sand blasting are removed;

[0039] (3) Put the copper wire with a diameter of 2 mm into the wire feeding device, first use the arc spray gun to spray the surface to be sprayed on the substrate once to preheat, and then use the arc spray gun to spray the copper wire to the surface to be sprayed on the substrate, A pure copper coating with a thickness of 0.3mm is obtained on the surface; among them, the current of arc spraying is 180A, and the voltage is 45V;

[0040] (4) Connect the p...

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Abstract

The invention relates to a deicing pure copper coating and belongs to the technical field of surface engineering. The pure copper coating is prepared and obtained by the adoption of the electric arc wire rod spraying method, the porosity is low, the strength of combination with a substrate is high, the conductivity is moderate, and ice accumulated on the surface of the substrate can be removed byelectrifying and heating the pure copper coating through an external power source. The pure copper coating serves as the deicing coating to be used, the deicing pure copper coating has the beneficialeffects of being high in heating efficiency, uniform in heating and simple in structure, and the deicing pure copper coating is suitable for removing accumulated ice on a body of an airplane, and particularly has a good deicing effect on parts made of a glass fiber reinforcement resin material. In addition, the preparation method of the pure copper coating is easy to operate, stability and controllability are high, and the method is suitable for spraying large members.

Description

technical field [0001] The invention specifically relates to a pure copper coating for removing ice on the surface of an aircraft fuselage, and belongs to the technical field of surface engineering. Background technique [0002] Aeronautical aircraft such as civil airliners are in the troposphere during takeoff and landing, and in the stratosphere at an altitude of about 10,000m during the cruise phase. The troposphere contains a large number of supercooled water droplets whose temperature is below 0°C but does not freeze, and the temperature in the troposphere drops by about 0.65°C for every 100m rise in height. During the take-off and landing process of the aircraft, due to the drastic temperature changes and the relatively high humidity of the troposphere, when the surface temperature of the fuselage is lower than 0°C, the supercooled water droplets in the atmosphere are easy to flow on the protruding parts of the fuselage such as rotors and tail rotors. Icing forms on t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C4/08C23C4/131
CPCC23C4/08C23C4/131
Inventor 柳彦博王全胜宁先进王乙瑾郭嘉仪魏思豪
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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