Method for adding carbon substance in the preparation of electric contact material

Abstract

The invention relates to a method for adding carbon substance in the preparation of electric contact material in the material technical field. The invention adopts a biomass derivative carbonaceous intermediate phase as material and uses the ethanol solution for dipping the metallic powder. After drying powder, the organic matters on the metallic powder surface form submicron or nanometer carbon particles in a heat treatment way, thus realizing the pollution-free uniform dispersion addition. The solution addition type brings easy operation and no external pollution. The submicron or nanometercarbon particles are uniformly dispersed in the electric contact material matrix so as to improve the comprehensive properties of the electric contact material. And the carbon substance is rich and cheap.

Description

technical field

[0001] The invention relates to a method for adding carbonaceous substances in the technical field of materials, in particular to a method for adding carbonaceous substances in the preparation of electrical contact materials. Background technique

[0002] Since carbonaceous substances (graphite or diamond) have the advantages of high melting point, wear resistance and friction reduction, stable chemical properties, etc., carbonaceous substances are widely used in the field of material preparation. For example, adding graphite to the electrical contact material can greatly improve the anti-welding performance of the material during use; in the preparation of wear-resistant and anti-friction materials for the mechanical industry, adding graphite can improve the anti-friction performance of the material, while adding diamond The wear resistance of the material can be improved, so as to achieve the purpose of prolonging the service life. At the same time, the pa...

Images