Novel electrical heating coating and preparation method thereof

An electric heating and coating technology, applied in coating, metal material coating process, melt spraying and other directions, can solve the problems of few types of coating materials, poor coating quality, complex process, etc. The type of layer material, the effect of increasing the electric heating efficiency

Inactive Publication Date: 2019-12-31
GUANGDONG INST OF NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to solve the problems existing in the production and preparation process of electric heating coatings in the prior art, such as complex process, few types of coating materials, and poor coating quality, so as to provide a simple preparation process and provide more Coating material selection, coating quality good, electric heating coating with high coating electric heating efficiency and preparation method thereof

Method used

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  • Novel electrical heating coating and preparation method thereof
  • Novel electrical heating coating and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] A preparation method of a novel electric heating coating, comprising the steps of:

[0040] (a) Use the naked eye to detect the Al substrate 3 to see whether there are scratches, voids, or inclusions on the Al substrate 3;

[0041] (b) Wipe the above-mentioned Al substrate 3 with acetone, remove the oil stains on the surface of the Al substrate 3, and then use 45# brown corundum to sandblast the above-mentioned Al substrate 3 at a pressure of 0.5 MPa;

[0042] (c) Use NiCr, Al 2 o 3 Powder is used as raw material powder, using atmospheric plasma spraying technology (APS), first spraying a NiCr coating with a thickness of 0.03mm on the surface of the Al substrate 3 as a primer as the bonding layer 4, and detecting that the bonding strength of the bonding layer 4 reaches 45MPa, and then coating the bonding layer 4 Spray Al on 2 o 3 Form an electrical insulating layer 5 with a thickness of 0.09 mm, and then continue to spray NiCr as the conductive layer 6 with a thickn...

Embodiment 2

[0045] A preparation method of a novel electric heating coating, comprising the steps of:

[0046](a) Use the naked eye to detect the Al substrate 3 to see whether there are scratches, voids, or inclusions on the Al substrate 3;

[0047] (b) Use acetone to wipe the above-mentioned Al substrate 3, remove the oil stains on the surface of the Al substrate 3, and then use 45# brown corundum to perform sandblasting on the above-mentioned Al substrate 3 under a pressure of 0.5 MPa;

[0048] (c) Use NiCr, Al 2 o 3 As the raw material powder, use low-pressure plasma spraying technology (LPPS) to spray a NiCr coating with a thickness of 0.04mm on the surface of the Al substrate 3 as a primer as the bonding layer 4, and detect that the bonding strength of the bonding layer 4 reaches 48MPa, and then spray on the bonding layer 4 Al 2 o 3 As the electrical insulation layer 5, the thickness is 0.10mm, and then continue to spray NiCr coating as the conductive layer 6, the thickness is 0....

Embodiment 3

[0051] A preparation method of a novel electric heating coating, comprising the steps of:

[0052] (a) Use the naked eye to detect the Al substrate 3 to see whether there are scratches, voids, or inclusions on the Al substrate 3;

[0053] (b) Use acetone and alcohol to wipe the above-mentioned Al substrate 3 to remove the oil stains on the surface of the Al substrate 3, and then use 45# brown corundum to perform sandblasting on the above-mentioned Al substrate 3 at a pressure of 0.5 MPa;

[0054] (c) Use NiCr, Al 2 o 3 As the raw material powder, use atmospheric plasma spraying (APS) to spray a NiCr coating with a thickness of 0.04mm on the surface of the Al substrate 3 as a primer as the bonding layer 4. It is detected that the bonding strength of the bonding layer 4 reaches 42MPa, and then Al is sprayed on the bonding layer 4. 2 o 3 As an electrical insulating layer, the thickness is 0.12mm, and then continue to spray NiCr coating as the conductive layer 5, and the thickn...

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Abstract

The invention relates to a novel electrical heating coating and a preparation method thereof, in particular used for ice-prevention and removal purposes in the fields of vehicles, aerospace and the like, and relates to the technical field of thermal spraying and laser engraving. The preparation method comprises the main preparation steps: a) A1 base plate test; b) A1 base plate surface pre-treatment; c) spraying the electrical heating coating to the surface of an A1 base plate by a thermal spraying technology; and d) laser engraving the surface of the electrical heating coating. The novel electrical heating coating has the advantages that 1) an electrical heating coating system of a three-layered structure is prepared by thermal spraying; and 2) a novel laser engraving process map is designed, and a discontinuous line groove is formed in the surface of the coating as a result of interaction of laser and the coating, so that a heat conducting area of the electrical heating coating becomes a continuous line shape, and therefore, the electrical heating efficiency is improved. Compared with an existing electrical heating coating structure, for example, an electrode layer and the like are needed to prepare, the thermal spraying and rapid proto-typing technological (laser engraving) processes are combined, the preparation process is simplified, and the novel electrical heating coating is the novel electrical heating coating structure.

Description

technical field [0001] The invention relates to the technical fields of thermal spraying and laser engraving, in particular to a novel electric heating coating and a preparation method thereof, which can be used for anti-icing and deicing in the fields of vehicles, aerospace and the like. Background technique [0002] Electric heating coating anti-icing and deicing refers to the construction of electric heating coating on the surface of wings and vehicle parts, and the use of electric heating to prevent the surface of aircraft and vehicle parts from accumulating ice. Traditional electric heating refers to the arrangement of resistance wires on the inside of the substrate. After the resistance wires are heated, the heat is transferred to the outside of the substrate to achieve the purpose of anti-icing and deicing. Therefore, the traditional method has the disadvantages of low energy utilization rate and high requirements on the heat transfer and heat resistance of the substr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C4/134C23C4/08C23C4/11C23C4/18
CPCC23C4/08C23C4/18C23C4/11C23C4/134
Inventor 杨洋朱晖朝谭僖朱霞高雷运生黄健
Owner GUANGDONG INST OF NEW MATERIALS
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