Nanofluid magnetic grinding fluid and magnetic field assisted minimal quantity lubrication system

Abstract

The invention discloses a nanofluid magnetic grinding fluid and a magnetic field assisted minimal quantity lubrication system. Magnetic ferroferric oxide nanoparticles in the nanofluid magnetic grinding fluid can be adsorbed on the surface of graphene to form magnetic lubricating mixed particles; the nanofluid magnetic grinding fluid forms spray under the action of the minimal quantity lubricationdevice, magnetic lubrication mixed particles in the spray are uniformly spread in a machining area of a workpiece under the action of the magnetic field auxiliary device to be lubricated and cooled,and the magnetic lubrication mixed particles are collected through the recovery container and can be reused. According to the invention, graphene is used as a lubricant, and the magnetic effect and the minimal quantity lubrication technology are combined for lubrication and cooling, so that the lubricant can be efficiently utilized, the lubrication and cooling effects are greatly improved, energyis saved, the environment is protected, and the industrial production requirements are met.

Description

technical field [0001] The invention belongs to the technical field of lubrication and cooling in grinding, and in particular relates to a nanofluid magnetic grinding fluid and a magnetic field-assisted micro-lubrication system. Background technique [0002] Grinding is the use of grinding wheels or other coated abrasives to process workpieces. Since the abrasive grains are usually cut with a negative rake angle during processing, a large amount of heat will be generated during the grinding process. During the grinding of difficult-to-machine materials, due to the high hardness and brittle characteristics of the material and poor thermal conductivity, the heat will be concentrated in the grinding area. If the heat cannot be exported in time, the temperature in the grinding area will rise sharply, which will not only cause grinding burns on the machined surface and affect the quality of the machined surface, but also the grinding wheel is prone to premature wear and scrap, a...

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Problems solved by technology

[0005] The present invention proposes a nanofluid magnetic grinding fluid and a magnetic field-assisted micro-lubrication system in order to solve the problems of poor lubrication and cooling effect of grinding fluid, harmful pollution, and great safety hazards in the grinding process of difficult-to-machine materials.

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