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High-conductivity carbon brush materials and preparation method thereof

A high-conductivity, carbon brush technology, used in brush manufacturing, circuits, current collectors, etc., can solve the problems of easy wear and difficult to overcome, and achieve the effect of high electrical conductivity, improved wear resistance and hardness

Active Publication Date: 2017-02-15
慈溪市华夏电器实业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although graphite has good wear resistance, in actual use, th

Method used

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  • High-conductivity carbon brush materials and preparation method thereof
  • High-conductivity carbon brush materials and preparation method thereof
  • High-conductivity carbon brush materials and preparation method thereof

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preparation example Construction

[0018] A preparation method for a high-conductivity carbon brush material, comprising the steps of:

[0019] (a) Graphene oxide, polypyrrole tube, acetylene black, zirconium nitride, chromium oxide, epoxy resin, silane coupling agent, electrolytic aluminum powder and dicyandiamide are mixed in proportion in corresponding parts by weight, and put into the mixer After mixing evenly, heat to 80-100°C and keep warm for 2-3 hours;

[0020] (b) continue to stir for 0.5 to 1 hour and then discharge the material. After the material is cooled to room temperature, put it into a pulverizer for reflux grinding, and pass the obtained powder through a 100-mesh sieve to obtain a micropowder; and

[0021] (c) Pressing the micropowder strip wire into shape, and the formed product is sent into a sintering furnace for high-temperature and high-pressure sintering. After sintering, it is cooled, punched, ground, embedding and arc-ground to form the high-conductivity powder. carbon brush material....

Embodiment 1

[0031] A high-conductivity carbon brush material consists of the following components in parts by weight: 15 parts of graphene oxide, 20 parts of polypyrrole tube, 20 parts of acetylene black, 2 parts of zirconium nitride, 2 parts of chromium oxide, and 10 parts of epoxy resin 2 parts, 2 parts of silane coupling agent, 1 part of dicyandiamide, 3 parts of electrolytic aluminum powder.

[0032] A kind of high-conductivity carbon brush material, comprises the following steps: with graphene oxide, polypyrrole tube, acetylene black, zirconium nitride, chromium oxide, epoxy resin, silane coupling agent, electrolytic aluminum powder and dicyandiamide by above-mentioned Proportional mixing, put into a mixer and mix evenly, heat to 80°C, keep warm for 2 hours, then continue to stir for 0.5 hours and then discharge, after the material is cooled to room temperature, put it into a pulverizer for reflux grinding, and the obtained powder passes through a 100-mesh sieve. Then the obtained mi...

Embodiment 2

[0035] A high-conductivity carbon brush material consists of the following components in parts by weight: 17 parts of graphene oxide, 22 parts of polypyrrole tube, 24 parts of acetylene black, 3 parts of zirconium nitride, 3 parts of chromium oxide, and 15 parts of epoxy resin 3 parts, 3 parts of silane coupling agent, 2 parts of dicyandiamide, 4 parts of electrolytic aluminum powder.

[0036]A preparation method for a high-conductivity carbon brush material, comprising the steps of: mixing graphene oxide, polypyrrole tube, acetylene black, zirconium nitride, chromium oxide, epoxy resin, silane coupling agent, electrolytic aluminum powder and dicyandiamide Mix the amines in proportion, put them into the mixer and mix evenly, heat to 900°C, keep warm for 2.5 hours, then continue to stir for 0.8 hours, then discharge the materials, after the materials are cooled to room temperature, put them into the pulverizer for reflux grinding, and the obtained powder passes through 100 mesh ...

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Abstract

The present invention provides a high-conductivity carbon brush materials and a preparation method thereof. The raw materials of the high-conductivity carbon brush materials comprise, by weight: 15-20 parts of graphene oxide, 20-30 parts of polypyrrole tube, 20-30 parts of acetylene black, 2-5 parts of zirconium nitride, 2-5 parts of chromium oxide, 10-20 parts of epoxy resin, 2-4 parts of silane coupling agent, 1-2 parts of dicyandiamide and 3-5 parts of electrolytic aluminum powder. The abrasive resistance and the hardness of the carbon brush materials are improved while maintaining the low cost and high conductivity so as to reduce the spark of the carton brush at work and prolong the service life of the motor carbon brush materials.

Description

technical field [0001] The invention relates to the technical field of carbon brush materials, in particular to a carbon brush material with high conductivity and wear resistance and a preparation method thereof. Background technique [0002] Carbon brush is a kind of conductive sliding contact, which is widely used in many electrical equipment. It is a device for transferring energy and signals between the fixed part and the rotating part of the motor, engine or other rotating machinery. In the motor, the carbon brush is used on the commutator or the slip ring, as a sliding contact body that leads and leads the current, it has good electrical conductivity, thermal conductivity and lubrication performance, and has a certain mechanical strength and the instinct of commutation sparks. Almost all motors use carbon brushes, which are an important part of the motor. [0003] At present, most carbon brushes are generally made of graphite, metal materials, resin adhesives and othe...

Claims

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Application Information

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IPC IPC(8): H01R39/22H01R39/26H01R43/12
CPCH01R39/22H01R39/26H01R43/12
Inventor 柴成华
Owner 慈溪市华夏电器实业有限公司
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