Wear-resistant asphalt resin-based composite material

Abstract

The invention relates to the technical field of self-lubricating antifriction wear-resistant composite materials, and discloses a wear-resistant asphalt resin-based composite material. The wear-resistant asphalt resin-based composite material includes the following raw materials: in parts by weight, 30-40 parts of asphalt resin with an average particle size of 75 [mu]m, 30-45 parts of graphite powder with an average particle size of 75 [mu]m, 8-15 parts of polymethylmethacrylate (PMMA) powder with an average particle size of 10 [mu]m, 5-10 parts of iron (Fe) powder with an average particle size of not larger than 10 [mu]m and 5-10 parts of nickel (Ni) powder with an average particle size of not larger than 10 [mu]m. The preparation method of the asphalt resin-based composite material includes the steps: mixing the raw materials evenly through mechanical stirring, and then performing hot pressing on the uniformly-mixed composite materials at a temperature of 220-230 DEG C and a pressureof 35-40 MPa so as to obtain the asphalt resin-based composite material. The technical problem that severe abrasion is caused due to low hardness and poor heat resistance at high temperature when a composite material which is prepared through compounding of asphalt resin and graphite works under the condition of dry friction is solved.

Description

technical field [0001] The invention relates to the technical field of self-lubricating friction-reducing and wear-resistant composite materials, in particular to a wear-resistant asphalt resin-based composite material. Background technique [0002] Wear, corrosion and fracture are the three main forms of material failure, among which the failure caused by friction and wear is the main reason for the failure of electromechanical materials including aviation, machinery and electronics. About 70-80% of the equipment is damaged and 30 ~50% of energy consumption is due to various forms of wear. Lubrication is an important means to reduce friction and wear, but the use of lubricants will cause pollution to the working environment, especially for the lubrication of machines used in conjunction with certain precision electronic equipment, which will seriously affect the performance of precision electronic equipment. [0003] Asphalt resin is easy to process and easy to form. Its t...

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Problems solved by technology

[0005] Aiming at the deficiencies of the prior art, the present invention provides a wear-resistant asphalt resin-based composite material, which solves the problem that the composite material prepared by compounding asphalt resin and graphite has low hardness and poor high-temperature heat resistance, resulting in Technical problem with higher wear when working in dry friction conditions