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A kind of wind power generator brush and preparation method thereof

A brush and pressure technology, which is applied in the manufacture of brushes, motor generator connectors, circuits, etc., can solve the problems of poor wear resistance and short service life of wind brushes, and achieve good wear resistance, long service life, and improved The effect of abrasion resistance

Active Publication Date: 2022-05-10
美尔森哈碳电碳(哈尔滨)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the technical problems of poor wear resistance and short service life of existing wind power brushes, the invention provides a wind power generation brush and its preparation method

Method used

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  • A kind of wind power generator brush and preparation method thereof
  • A kind of wind power generator brush and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Embodiment 1: A wind power generation brush according to the present embodiment is prepared from 34 parts of graphite powder, 65 parts of silver powder, 5 parts of lead oxide powder, 8 parts of nickel powder, 0.3 parts of antiwear agent and 23 parts of phenolic resin in parts by mass Wherein the graphite powder is flake graphite powder, the average particle diameter is 300 mesh, the carbon content ≥ 99%, and the ash content ≤ 1%; the antiwear agent is silicon carbide, and the average particle diameter of silicon carbide is 300 mesh, so The particle size D50 of the silver powder is 15 μm.

preparation Embodiment 1

[0032] The method for preparing the wind power generation brush described in Example 1 is carried out as follows:

[0033] Step 1, compressed powder: mix graphite powder, anti-wear agent, nickel powder, silver powder, lead oxide powder and phenolic resin at 80°C for 3 hours to obtain compressed powder;

[0034] Step 2, compression molding: pass the compressed powder obtained in step 1 through a 40-mesh sieve, and then place it in a 3t / cm 3 Pressed under pressure to a bulk density of 3.68g / cm 3 ~3.70g / cm 3 rough brushes;

[0035] Step 3. Roasting treatment: place the rough brush blank obtained in step 2 in a mesh belt furnace, and successively heat it under the conditions of 200°C, 260°C, 350°C, 450°C, 600°C, 700°C, and 780°C. After heating for 2.5 hours, a wind power generator brush is obtained.

Embodiment 2

[0036] Embodiment 2: In this embodiment, a wind power generation brush is prepared by mass parts from 40 parts of graphite powder, 59 parts of silver powder, 5 parts of lead oxide powder, 7 parts of nickel powder, 0.3 part of antiwear agent and 26 parts of phenolic resin wherein the graphite powder is flake graphite powder with an average particle diameter of 300 mesh, a carbon content ≥ 99%, and an ash content ≤ 1%; the antiwear agent is silicon carbide, and the average particle diameter of silicon carbide is 300 mesh. The particle size D50 of the silver powder was 15 μm.

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Abstract

A brush for wind power generation and a preparation method thereof. The invention belongs to the field of electric brush and its preparation. The invention aims to solve the technical problems of poor wear resistance and short service life of the existing wind brushes. The wind power generation electric brush of the present invention is prepared from graphite powder, silver powder, lead oxide powder, nickel powder, anti-wear agent and phenolic resin in parts by mass. The preparation method: step 1, pressing powder; step 2, pressing and forming; step 3, roasting treatment. The raw material composition of the electric brush of the present invention is reasonable, the formula is scientific, and the prepared electric brush for wind power generation has excellent wear resistance, high pressure resistance, long service life, environmental protection, and the wear resistance is improved by more than 30%. In addition, the electric brush for electric motor of the present invention It has low resistivity, good wear resistance, good commutation performance, strong anti-interference ability and long service life, which can better meet various requirements of grounding brushes and has a wide range of applications.

Description

technical field [0001] The invention belongs to the field of electric brushes and their preparation, and in particular relates to a wind power generation electric brush and its preparation method. Background technique [0002] my country's wind power development has a history of more than 20 years, and most of the equipment used in wind farms are imported products from abroad, because foreign equipment prices and maintenance costs are relatively high. Therefore my country's wind power industry will speed up the development, first of all to speed up the pace of the invention and scale of various accessories of wind turbines, which is also the key to the healthy and rapid development of my country's wind power, wherein the used brush accessories on the wind turbine generator is a high Consumables consume a large amount. At present, all the carbon brushes required by Vestas fans are imported. Since the brushes are made of mixed, pressed and sintered powders, the production cycle...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01R39/20H01R39/22H01R43/12
CPCH01R39/20H01R39/22H01R43/12H01R2201/10
Inventor 佟立国徐明辉
Owner 美尔森哈碳电碳(哈尔滨)有限公司
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