Tungsten disulfide composite material for carbon brush of motor and preparation method thereof

Abstract

The invention relates to a tungsten disulfide composite material for a carbon brush of a motor and a preparation method thereof. The tungsten disulfide composite material comprises the following components in percentage by mass: 1% of tungsten, 0.3488% of sulfur, 0.005-0.3% of silicon carbide and 0.0005-0.005% of a rare earth catalyst, wherein the rare earth catalyst is selected from one or more of the Re, Pt, Rh, Ta and Co or the sulfide of the Re, Pt, Rh, Ta and Co. The preparation method of the tungsten disulfide composite material comprises the following steps of: proportioning the components, carrying out high-temperature sintering reaction at the temperature of 230-850 DEG C under the protection of argon, grinding the product of reaction, and grading by using a vibrating screen to obtain the tungsten disulfide composite material. The carbon brush produced from the tungsten disulfide composite material has high operating quality and long service life, so that the service life of a commutator can be prolonged, and noises can be inhibited. In addition, the subsequent preparation process of the carbon brush can be simplified, and the preparation efficiency of the carbon brush can be improved greatly.

Description

technical field

[0001] The invention relates to a tungsten disulfide composite material for electric carbon in the field of new materials and a preparation method thereof. Background technique

[0002] As a new technology, composite materials have the characteristics of saving costs, improving product performance, and improving efficiency. Tungsten disulfide is an important friction material. Its physical and chemical properties and the results of its application tests show that it can be used not only in general lubrication conditions, but also in certain high temperature, low temperature, high load, high vacuum, In harsh working environments with radiation and corrosive media, it can be used alone in powder state, or mixed with lubricating oil, grease, graphite, metal powder, plastic and other materials to make composite materials. Tungsten disulfide composite material is a very good emerging energy-saving material for reducing friction. Its performance is much better tha...