Nanoscale metal ceramization lubricant additive and preparation method therefor

Abstract

The invention provides a nanoscale ceramic metallization lubricant additive and a preparation method therefor, and aims to provide a nanoscale ceramic metal lubricant extreme pressure-antiwear additive which can improve the friction pair antiwear property and has self-lubricating functions. The invention is realized through the following technical scheme: quantification of raw materials is carried out according to the formula of the lubricant additive; nano ceramic powder is added into the raw materials; the above mixture is placed in a reactor wherein a coupling reaction is carried out under the atmosphere of hydrogen, nitrogen and helium; a coupling agent is added and the mixture is subjected to a coupling reaction to form ceramic primer gel with chemical covalent bonds, and one end of the coupling agent is a silicon-oxygen connection structure-Si[OEt]3 and the other end of the coupling agent is a chemical structure with molybdenum phosphate and boron nitride primer functional groups; the gel is added into a reactor through a metering pump, and is subjected to pressurization and carbon dioxide supercutical fluid solvent exchange, and the liquefied gel is converted into gasified gel; the gasified gel is then placed in a reactor atmosphere protection sintering furnace and sintered; the sintered ceramic coupling objects are placed in a stirring mixer and mixed with a surfactant additive, a dispersant, and a basic oil solvent to obtain finished products.

Description

technical field [0001] The invention relates to a lubricating oil composition technical field, which is widely used in various mechanical frictions, especially lubricating oil additives of lubricating systems such as automobiles, ships, engineering machinery and the like. technical background [0002] Since the industrial revolution in the 19th century, lubricating oil and grease have become an indispensable part of the machinery industry. With the rapid development of industrial equipment, the high-speed, high-load lubrication requirements continue to test the applicability of traditional lubricating oil technology. There is also an increasing demand for research and development of first-generation lubricants. The theory of traditional lubricating oil has been established and used since the 1930s and 1940s. Although the original lubricating oil technology has been continuously improved and updated, due to the limitations of materials and methods, it is difficult to break th...

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Problems solved by technology

The theory of traditional lubricating oil has been established and used since the 1930s and 1940s. Although the original lubricating oil technology has been continuously improved and updated, due to the limitations of materials and methods, it is difficult to break through the traditional lubricating oil theory, so the lubrication method is still in use. Fluid oil film lubrication reduces the friction coefficient to achieve the purpose of lubrication and wear reduction. Since the oil film adhesion is a physical adhesion, the degree of adhesion will be seriously different due to different temperature, time, and operating conditions. For example: after a long time the car stops. The lubricating oil has flowed back to the engine oil pan. When restarting, the oil film adhesion of the friction pair of the engine is very thin or even completely lost the oil film adhesion, which makes it difficult to start the machine, causing instantaneous huge friction and serious wear of the machine parts. This is the traditional Defects and deficiencies of lubrication methods in practical applications

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