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Insulation protection method for electric propeller

A technology of electric propulsion and insulating coating, which is applied to special surfaces, pretreatment surfaces, and devices for coating liquids on surfaces, etc. It is easy to operate and realize, improve lifespan, and reduce development costs.

Pending Publication Date: 2019-02-15
BEIJING MECHANICAL EQUIP INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of the above analysis, the present invention aims to provide an electric thruster insulation protection method to solve the problem of poor insulation effect of the existing insulation protection method, which leads to a complicated structure of the electric thruster, and increases the volume and weight of the electric thruster. question

Method used

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  • Insulation protection method for electric propeller
  • Insulation protection method for electric propeller
  • Insulation protection method for electric propeller

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0067] (1) Degrease and derust the surface of the non-electrode conductive parts, and roughen the sandblasting, sandblasting Sa2.5 grade or above, using emery with a particle size of 40 mesh and 60 mesh in a mass ratio of 1:1 Matching sandblasting;

[0068] (2) Seal and roll the liquid nano-composite ceramic paint on the curing machine to the bottom of the bucket without precipitation, and filter it with an 80-mesh filter for subsequent use;

[0069] (3) The coating tools are first cleaned with absolute ethanol and then cleaned with water, and then dried with compressed air for later use;

[0070] (4) Place the non-electrode conductive parts to be coated in the oven, and use a coating tool to evenly coat the nanocomposite ceramic coating on the outer surface of the non-electrode conductive parts;

[0071] (5) After the surface of the coating is dry at room temperature, close the oven door, run the oven, and bake at 100°C for 30 minutes; then bake at 550°C for 2 hours, and clo...

Embodiment 2

[0074] (1) Degrease and derust the surface of the non-electrode conductive parts, and roughen the sandblasting, sandblasting Sa2.5 grade or above, using emery with a particle size of 40 mesh and 60 mesh in a mass ratio of 1:1 Matching sandblasting;

[0075] (2) Seal and stir the liquid nano-composite ceramic coating evenly without precipitation, and filter it with a 120-mesh filter for subsequent use;

[0076] (3) The coating tools are first cleaned with absolute ethanol and then cleaned with water, and then dried with compressed air for later use;

[0077] (4) Place the non-electrode conductive parts to be coated in the oven, place the first coating mold on the surface of the non-electrode conductive parts to be coated, and use a coating tool to evenly coat the nanocomposite ceramic coating on the External surfaces of non-electrode conductive parts;

[0078] (5) After the surface of the coating is dry at room temperature, close the oven door, run the oven, and bake at 130°C...

Embodiment 3

[0081] (1) Degrease and derust the surface of the non-electrode conductive parts, and roughen the sandblasting, sandblasting Sa2.5 grade or above, using emery with a particle size of 40 mesh and 60 mesh in a mass ratio of 1:1 Matching sandblasting;

[0082] (2) Seal and roll the liquid nano-composite ceramic paint on the curing machine to the bottom of the barrel without precipitation, and filter it with a 100-mesh filter for subsequent use;

[0083] (3) The coating tools are first cleaned with absolute ethanol and then cleaned with water, and then dried with compressed air for later use;

[0084] (4) Place the non-electrode conductive parts to be coated in the oven, place the first coating mold on the surface of the non-electrode conductive parts to be coated, and use a coating tool to evenly coat the nanocomposite ceramic coating on the External surfaces of non-electrode conductive parts;

[0085] (5) After the surface of the coating is dry at room temperature, bake at 115...

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Abstract

The invention relates to an insulation protection method for an electric propeller, and belongs to the technical field of space high-voltage insulation protection. The problems that the structure of the electric propeller is complicated and the size and weight of the electric propeller are increased due to the fact that an existing insulation protection method has a poor insulation effect are solved. According to the insulation protection method for the electric propeller, the surface of a non-electrode conductive part is coated with an insulating coating, and the insulating coating is a nano-composite ceramic coating. The insulation protection method comprises the following steps that (1) the nano-composite ceramic coating is uniformly shaken and filtered for later use; (2) the surface ofthe non-electrode conductive part is coated with the filtered nano-composite ceramic coating to obtain a ceramic coating; and (3) after the ceramic coating surface is dried, baking is carried out until the ceramic coating is dried totally, baking is carried out continuously and heat preservation is carried out, and an oven is closed. According to the insulation protection method for the electricpropeller, more reliable insulation is realized by coating the nano-composite ceramic coating on the surfaces of all non-electrode conductive parts, the size and weight of the electric propeller are not increased, and the service life of the electric propeller is prolonged.

Description

technical field [0001] The invention relates to the technical field of space high-voltage insulation protection, in particular to an insulation protection method for an electric thruster. Background technique [0002] The high-power electric thruster represented by the magnetoplasma electric thruster will be the first choice for the propulsion system of the manned deep space exploration vehicle in the future. Push performance. Since the high-power magnetic plasma electric thruster realizes the ionization of the propellant through electrode discharge, the voltage can reach more than 6000V in the arc-starting stage of the discharge. Even after the electric thruster works stably, the voltage between the electrodes is several hundred volts. Although it works in a vacuum environment, due to the continuous injection of propellant, it is very easy to discharge between the non-electrode conductive parts of the electric thruster, which is absolutely not allowed during the working pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B05D5/12B05D3/02C09D5/25
CPCB05D3/0254B05D5/12C09D5/00
Inventor 罗杨王忠晶许诺
Owner BEIJING MECHANICAL EQUIP INST
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