Composite high-stability lubricant and preparation process thereof

Abstract

The invention relates to a composite high-stability lubricant. The composite high-stability lubricant is composed of the following substances in percentage by mass: 5%-18% of metal oxide powder, 7%-23% of hollow glass beads, 7%-11% of oleic acid, 3%-5% of light rare earth, 5%-12% of ethyl silicate, 1.5%-2.8% of water-based polyurea, 0.5%-1.8% of graphene fibers, 0.1%-0.5% of a defoaming agent, 1%-2.5% of an extreme pressure agent, 1.2%-2.1% of a coupling agent, 1.8-5.3% of a flexibilizer, 0.5%-1.7% of a lubricant, 2%-11% of lubricating grease and the balance of white oil. The preparation process comprises emulsification mixing, hollow glass bead reinforcement, hard matrix mixing and material mixing. According to the invention, on one hand, performance indexes such as anti-emulsification performance, shear deformation resistance, wear resistance, fluidity, high-temperature resistance and the like of the lubricant can be effectively and comprehensively improved; on the other hand, lubrication and wear-resistant protection capability of the lubricant to the surface of mechanical equipment prepared from metal, plastic and the like can be effectively improved, and meanwhile, defects such as scratches on the surface of the mechanical equipment prepared from metal, plastic and the like can be effectively repaired.

Description

technical field [0001] The invention relates to a composite high-stability lubricant and a preparation process thereof, belonging to the technical field of mechanical lubrication. Background technique [0002] Lubricant is an important material currently used to reduce the resistance and friction loss during relative motion and rotational motion of mechanical equipment. The amount of use and consumption is huge, and the lubricating effect and quality stability of lubricants also improve the stability and efficiency of equipment operation. It is an important guarantee and an important way to reduce the friction loss in the operation of the equipment and the shortened service life and failure rate of the equipment due to friction loss. [0003] However, in actual work and use, the lubricants currently used are often traditional calcium-based, lithium-based and silicon-based lubricating oils or greases, and lubricants or greases are used as aggregates to increase such as polypr...

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Problems solved by technology

[0003] However, in actual work and use, the lubricants currently used are often traditional calcium-based, lithium-based and silicon-based lubricating oils or greases, and lubricants or greases are used as aggregates to increase such as polypropylene Lubricating oils or greases modified with high-group polymer components such as resins, metal oxides, etc., or inorganic components can meet the needs of use to a certain extent, but the lubricants of the same type or type have higher performance in terms of kinematic viscosity and dynamic viscosity. , Relative viscosity, anti-oxidation performance, anti-emulsification performance, resistance to shear deformation, wear resistance, fluidity, high temperature resistance and other performance indicators have different degrees of deficiencies. Therefore, on the one hand, in the use of lubricants, frequent Carry out lubricant quality inspection and replacement, and even need to build auxiliary equipment such as lubricating oil stations to ensure the stability of lubricant quality during operation. On the other hand, the types of lubricants used on different parts of the same equipment are often different , which leads to the difficulty of equipment maintenance and management, high labor intensity and low work efficiency of lubricant replacement and maintenance, which seriously affects the operation stability and reliability of mechanical equipment, and also greatly increases the operation and maintenance costs of mechanical equipment, and leads to The continuous operation performance of machinery is greatly affected. In addition, when the current lubricant is running, it often only passes through the oil film on the metal surface of machinery, plastics and other materials, and through the oil film, the purpose of improving the surface lubrication effect of the equipment and reducing friction loss is achieved. However, there is no effective repair ability for damage or defects such as scratches and cracks on the surface of the equipment. Therefore, the current lubricants have great deficiencies in improving the performance of mechanical equipment, operating stability and reliability, and cannot effectively meet the actual needs. The needs of use, so in view of this situation, there is an urgent need for a new lubricant to meet the needs of actual use

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