Graphene-based metal abrasion intelligent repair material and preparation method thereof

Abstract

The invention relates to a graphene-based metal abrasion intelligent repair material and a preparation method thereof. The repair material provided by the invention consists of the following components according to weight and volume: 5 to 10 g of graphene, 30 to 150 g of serpentine powder, 20 to 40 g of molybdenum powder, 15 to 55 g of rare earth powder, 90 to 210 g of copper powder, 35 to 95 g of nickel powder and 1000 to 2000 ml of 100N base oil. The preparation method comprises the steps of putting the serpentine powder into a plastic ware, rinsing with hot water at the temperature of 80 to 90 DEG C and enabling the water to naturally evaporate; putting the serpentine powder, the molybdenum powder, the rare earth powder, the copper powder and the nickel powder into drying equipment, and drying at the temperature of 110 to 130 DEG C for 100 to 130 minutes, wherein the water content of each of the serpentine powder, the molybdenum powder, the rare earth powder, the copper powder and the nickel powder is less than 2 percent after drying; putting the dried powder into a homogenizer, stirring at the stirring speed of 2000 to 3000 revolutions per minute, adding the base oil after stirring, and continuously stirring for 1 to 10 hours to obtain a colloidal mixture; and putting the colloidal mixture into an ultrasonic dispersing instrument to perform dispersion.

Description

technical field [0001] The invention relates to a graphene-based intelligent repair material for metal wear and a preparation method thereof, and belongs to the technical field of metal wear repair materials and preparation methods thereof. Background technique [0002] Wear, corrosion and fatigue are the three main forms of failure of mechanical equipment and parts. The economic loss caused by wear and tear is very huge. If useless friction consumption can be reduced, a large amount of energy can be saved and harmful gas emissions can be reduced. [0003] The anti-wear, anti-friction and repair technology of friction pairs of metal mechanical parts is a worldwide problem that has plagued the mechanical field for a long time. Usually metal anti-wear refers to the friction resistance or anti-wear properties of the friction pair under dry friction conditions, which is mainly determined by the hardness of the metal material, and its main technical approach is to harden the fri...

AI Technical Summary

Problems solved by technology

The first reason is that it only adheres and dissociates on the surface of the metal friction pair, and the coefficient of linear expansion is different from that of the matrix, so it will not change any dimensional tolerance of the workpiece, so that the metal surface has a slight property change on the thickness of a few nanometers, and the chemical reaction process cannot Control, the modified layer is too thin and not stable enough, it is easy to fail, fall off and peel off under high temperature and strong friction conditions; second, these materials are nano-scale when they enter the friction surface, and the working impurities after a period of mechanical operation and When the additive is dissolved in one body, the particle size of the material will naturally increase, which will cause deposition, which will make the inner diameter of the oil passage thinner, form a plug, and cause poor oil supply; third, when the additive amount is higher than 0.1%, the metal The content test index has changed; Fourth, it must be added every time the lubricating oil is replaced, which is dependent