Porous oil-containing lubricating material with polyethylene as matrix and preparation method thereof

Abstract

The invention provides a porous oil-containing lubricating material with polyethylene as a base body. The material is prepared from by 30-94 parts of polyethylene, 5-60 parts of lubricating oil and 1-10 parts of solid lubricant, wherein the average molecular weight of polyethylene is 300,000-10,000,000. A preparation method of the lubricating material includes the steps of material mixing, multiple times of compression moulding, sintering and the like. The porous oil-containing lubricating material prepared through the method is internally provided with a rich porous structure, lubricating oil can be continuously and stably supplied in the work state, and the material integrates excellent performance such as abrasion resistance, impact resistance, chemical corrosion resistance and low temperature resistance. Oil can be supplied to a chemical friction pair continuously, the lubricating material can be refilled with oil and continuously used, and the practical effect is good.

Description

technical field [0001] The invention relates to the technical field of lubricating materials, in particular to a porous oil-containing lubricating material with polyethylene as a matrix, its preparation process and application. Background technique [0002] With the continuous development of society, people's requirements for the quality of social products are getting higher and higher, which also puts forward higher standards for the production of industry and daily necessities. As a result, the industrial revolution was set off, and the industrial revolution also drove the development of equipment. Technology upgrade. The problem of wear and tear of production equipment also follows, and the effect of lubrication determines the service life of equipment. [0003] Friction pairs are widely used in mechanical equipment, and the lubrication effect of friction pairs is an important factor affecting the service life of equipment. Textile machinery, robots, aerospace, printing...

AI Technical Summary

Problems solved by technology

The above two lubrication methods are commonly used, but there are also big problems: first, it is cumbersome to add lubricating grease regularly, and it will increase the maintenance cost of the equipment; second, it is difficult to directly add lubricating grease to some special parts Lubricating grease; third, when the amount of oil is too much, it is easy to absorb dust, or dripping occurs, which affects the service life of the equipment and pollutes the products in production; fourth, in the operation of mechanical equipment, the increase in temperature will reduce the viscosity of lubricating grease, resulting in Lubricating grease drips and leaks, causing pollution to the equipment environment and work-in-progress; Fifth, the design of the oil supply system will greatly increase the design difficulty and production cost

[0005] In recent years, the emergence of porous oil-containing self-lubricating materials has solved some of the above problems. However, due to the limitations of their own performance, the existing porous oil-containing self-lubricating materials cannot achieve uniformity in the amount of internal micropores and the uniformity of micropores. The lubricating material itself has low strength and poor bonding force with the matrix, which will reduce the strength, toughness and wear resistance of the material

At the same time, the problem that porous oil-containing self-lubricating materials require a large amount of lubricating oil for continuous lubrication of friction parts still cannot be solved

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