Carbon brush used for low-abrasion motor and mixed with nanocopper and preparation method thereof

A nano-copper, low-wear technology, used in brush manufacturing, circuits, current collectors, etc., can solve the problems of poor wear resistance, short service life, and pollution of carbon brushes, and achieve low wear rate, good electrical conductivity, and improved electrical conductivity. sexual effect

Inactive Publication Date: 2015-09-09
ANHUI A NAIL TRADE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Carbon brush is a kind of sliding contact, which is widely used in many electrical equipment. It is a device for transmitting energy and signals between the fixed part and the rotating part of an electric motor, engine or other rotating machinery. Its components are mainly composed of graphite, Resin adhesive and other additives are then sintered a

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0009] The carbon brush of this embodiment is made of the following raw materials by weight: nano copper 1.5, conductive silica gel 8, graphene oxide 0.2, high-purity graphite 58, medium temperature coal tar pitch 28, conductive carbon black 6, nano carbon sol 10.5, castor oil 8. Epoxy resin 12, sodium dodecylsulfonate 0.1, nanometer aluminum oxide 6, titanate coupling agent 1.5.

[0010] The preparation method is: put each component into a mixer and mix evenly, heat to 60-80°C, continue to stir and mix for 40 minutes, then cool the obtained material, put it into a pulverizer for reflux grinding, and make the obtained powder pass through 100 mesh Sieve, and then press the obtained micropowder with wire to form, and the formed product is sent to a nitrogen atmosphere sintering furnace for sintering. After sintering, it is cooled, welded, and packaged to obtain the finished product.

[0011] The sintering conditions are: sintering temperature: 300-350°C; sintering time 6h.

[0...

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PUM

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Abstract

The invention relates to the field of carbon brush technology, in particular to a carbon brush used for a low-abrasion motor and mixed with nanocopper and a preparation method thereof. In the carbon brush, middle-temperature coal tar pitch, conductive silica gel and epoxy resin are mixed and used as a bonding agent. The composite bonding agent has higher comprehensive performance and electrical conducting performance, and is anti-abrasion and not liable to crack. Via the mixed nanocopper, oxidized grapheme and nanocarbon sol, electrical conductivity of materials is effectively improved, frictional coefficient is reduced, and flexibility of materials is improved. The prepared carbon brush has high electrical conducting performance, is low in abrasion rate, operates stably, generates low noise and small sparks, has stable size, and will not damage a rotator and a stator.

Description

technical field [0001] The invention relates to the technical field of carbon brushes, in particular to a carbon brush for a low-wear motor mixed with nano-copper and a preparation method thereof. Background technique [0002] Carbon brush is a kind of sliding contact, which is widely used in many electrical equipment. It is a device for transmitting energy and signals between the fixed part and the rotating part of an electric motor, engine or other rotating machinery. Its components are mainly composed of graphite, Resin adhesive and other additives are then sintered and formed. Conventional carbon brushes generally have problems such as poor wear resistance, large loss, and short service life during use, and there is pollution in the production process, so research and development is urgently needed Use new carbon brush materials with high efficiency, environmental protection and safety to meet the needs of the market. Contents of the invention [0003] The object of t...

Claims

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Application Information

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IPC IPC(8): H01R39/20H01R43/12
CPCH01R39/20H01R39/22H01R43/12
Inventor 夏保东
Owner ANHUI A NAIL TRADE
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