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Carbon brush and copper plating technology of carbon brush

A carbon brush and copper plating technology, which is applied in the manufacture of brushes, current collectors, electrical components, etc., can solve the problems of shortening the service life of carbon brushes, low work efficiency, and high wear rate, so as to increase service life, improve work efficiency, reduce The effect of production costs

Inactive Publication Date: 2013-02-13
JIANGSU HUAYU CARBON
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] With the development of industry and the advancement of technology, the existing brushes for various types of motors are made of graphite powder and carbon powder or graphite powder and metal powder, which are fully mixed with a binder, and are ground, pressed, roasted or solidified. After the brush blanks are processed and assembled according to the drawings, the component carbon brushes can be made. However, the existing carbon brushes have a high wear rate in electric tools, which seriously shortens the service life of the carbon brushes. cause inefficiency

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] The carbon brush is composed of: 80% of graphite powder, 13% of resin, 7% of pitch, and the resin is carbon fiber pre-impregnated resin; the carbon brush copper plating process includes the following steps: The components are mixed in a mixer, dried after mixing, then pulverized, sieved, pressed and formed by a mold on a press, and then sintered. The sintering temperature is 400 ° C, and the sintering time is 10 After the sintering is completed, the surface is ground and then put into a copper-plating container for copper-plating reaction. The copper-plating container has copper sulfate with a concentration of 68%, the reaction temperature is 23 ° C, and the reaction time is 3 hours. After the reaction is completed, the required carbon brushes are made by punching, submerging and grinding arcs. The process conditions are simple, easy to implement, convenient for production, reduce production costs, improve work efficiency, and increase service life. It is used for high-p...

Embodiment 2

[0018] Carbon brush, the composition of the carbon brush by weight percentage is: graphite powder 85%, resin 12.5%, pitch 7%, the resin is carbon fiber pre-impregnated resin; the carbon brush copper plating process includes the following steps: The components are mixed in a mixer, dried after the mixing is completed, then pulverized, sieved, pressed and formed by a mold on a press, and then sintered. The sintering temperature is 420 ° C, and the sintering time is 12 After the sintering is completed, the surface is ground, and then put into a copper-plating container for copper-plating reaction. The copper-plating container has copper sulfate with a concentration of 70%, the reaction temperature is 25 ° C, and the reaction time is 5 hours. After the reaction is completed, the required carbon brushes are made by punching, submerging and grinding arcs. The process conditions are simple, easy to implement, convenient for production, reduce production costs, improve work efficiency,...

Embodiment 3

[0020] Carbon brush, the composition of the carbon brush is: graphite powder 83%, resin 4%, pitch 3%, the resin is carbon fiber prepreg resin, carbon fiber prepreg resin or carbon fiber special high temperature epoxy resin; carbon brush The copper plating process includes the following steps: mixing the components of the carbon brush in a mixer, drying after the mixing is completed, then pulverizing, sieving again, pressing and forming on a press through a mold, and then sintering, so that the The temperature during the sintering is 450 ° C, the sintering time is 15 hours, after the sintering is completed, the surface is ground, and then put into a copper-plated container to carry out a copper-plating reaction, and the copper-plated container has copper sulfate with a concentration of 80%, and the reaction is carried out. The temperature is 28 °C, and the reaction time is 8 hours. After the copper plating reaction is completed, the required carbon brushes are made by drilling, ...

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PUM

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Abstract

The invention discloses a carbon brush. The carbon brush is characterized by comprising the following constituents in percentage by weight: 80-90% of graphite powder, 10-15% of resin and 1-8% of asphalt. The copper plating technology is characterized by comprising the following steps of: mixing the constituents of the carbon brush in a mixer, and drying; then, smashing the mixture, screening, carrying out compression moulding on a press by a die, sintering, grinding the surface after sintering; and then, placing the grinded workpiece in a copper plating container for executing the copper plating reaction, and after the copper plating reaction, making the needed carbon brush by punching, wire embedding and arc grinding. The carbon brush and the copper plating technology have the advantages that the technological conditions are simple and easy to realize, the carbon brush is convenient to produce, the production cost is lowered, the working efficiency is improved, the service life is prolonged, and the carbon brush can be used for high-power electric tools or dust collector equipment.

Description

technical field [0001] The invention relates to a carbon brush, and also relates to a carbon brush copper plating process. Background technique [0002] With the development of industry and the advancement of technology, the existing electric brushes for various types of motors are made of graphite powder and carbon powder or graphite powder and metal powder and then fully mixed with a binder. After grinding, pressing, roasting or curing After the brush blank is processed and assembled according to the drawing, the component carbon brush can be obtained. However, the existing carbon brush in the power tool has a high wear rate, which seriously shortens the service life of the carbon brush. cause low work efficiency. [0003] Therefore, there is an urgent need for an improved technology to solve this problem in the prior art. SUMMARY OF THE INVENTION [0004] The purpose of the present invention is to provide a carbon brush and its copper plating process. [0005] The te...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01R39/26H01R39/20H01R43/12
Inventor 周兵
Owner JIANGSU HUAYU CARBON
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