Two-particle nano-magnetic lubricating oil

Abstract

The invention relates to two-particle nano-magnetic lubricating oil. The lubricating oil is prepared by using a method comprising the following steps of: injecting pentacarbonyl iron and cobalt octacarbonyl into the mixture liquid of a surface active agent and carrier liquid under the protection of inert gases and the addition of ammonia gas; heating a reaction system to 80-90 DEG C, starting a direct current high voltage and starting and adjusting the direct current pulse high voltage to be 7kV while the pulse frequency is approximate 63kHz; carrying out plasma activation on the ammonia gas at approximate 200 DEG C for 130-150min; and then, cooling the reaction system to below 40 DEGC after the reaction is finished and collecting products. The two-particle nano-magnetic lubricating oil prepared by using the plasma activating method of the invention substitutes Co particles with strong magnetic capability for one part of Fe particles aiming at the reasons of low saturation magnetization intensity of original single-particle nano-magnetic lubricating oil, poor stability of nano magnetic particles, and the like, thereby enhancing the saturation magnetization intensity of the magnetic particles and improving the saturation magnetization intensity of the magnetic lubricating oil.

Description

technical field [0001] The invention belongs to the field of functional materials, and in particular relates to the preparation and application theory of lubricating oil lubrication. Background technique [0002] Wear is the main cause of shortened service life of mechanisms and mechanical parts. According to the survey conducted by AsME on 500 typical mechanical parts scrapping situations, about 80% of them are caused by wear and tear. In mechanical engineering, lubrication is the most economical and most commonly used method to reduce wear, reduce wear, improve mechanical efficiency, and prolong the life of parts. By adding lubricant between the two surfaces, the original dry friction becomes boundary friction, mixed friction or even liquid friction, which will greatly reduce the friction phenomenon. [0003] Traditional lubricating oil will leak and splash under the action of gravity and centrifugal force, which will shorten the life of the device, and cause resource wa...

AI Technical Summary

Problems solved by technology

Scholars at home and abroad have also conducted a lot of research on the lubricating properties of nano-materials. Nano-particles have unique properties. Nano-scale inorganic elemental powders, inorganic salt powders, metal oxide powders, etc. are used as anti-wear and anti-friction additives. Wear and reduce the properties of friction coefficient, these special anti-wear and anti-friction and high load-carrying capacity prove that they can be used as new lubricants and grease anti-wear agents, but the surface of nanoparticles is extremely active, very unstable, and extremely It is easy to combine with other atoms, causing its surface to adsorb, oxidize and agglomerate into large particles, which requires modification of the surface of nanoparticles to obtain satisfactory dispersion performance

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