Solid-liquid phase composite lubricating grease and preparation method thereof

Abstract

The invention belongs to the field of lubricant and preparation methods thereof, particularly relates to a solid-liquid phase composite lubricating grease and a preparation method thereof. According to the theory of solid-liquid phase composite lubrication technology, and aimed at the requirements of a bearing on lubrication in different application cases and operating temperature ranges, the invention provides a technical scheme for the solid-liquid phase composite lubricating grease composition and the preparation method thereof. The components of the additive include solid-liquid phase composite additive, base oil and more than two types of mono-soap greases and composite soap greases, which are prepared into the solid-liquid phase composite lubricating grease with a uniform dispersion system by shearing dispersion. The solid-liquid phase composite lubricating grease produced by the invention can enhance and improve the structure form of the common lubricating grease, in the aspects of use temperature, lubricating mode and lubricating effect, during a lubrication process from an initial stage below 60DEG C, to a later stage of a mesotherm 60-120 DEG C, a high temperature 80-180 DEG C till an extra-high temperature more than 350 DEG C, each effective component in the solid-liquid phase composite lubricating grease plays respective lubrication action in different lubrication temperature stages, realizes zero blind spot lubrication in each lubrication temperature stage, obtains the effects of decreasing friction, reducing attrition, saving energy, protecting and prolonging the device use lift, and opens a new path for saving energy.

Description

A kind of solid-liquid phase composite lubricating grease and its preparation method 1. Technical field: The invention belongs to the field of lubricants and preparation methods, and in particular relates to a solid-liquid phase composite lubricating grease and a preparation method. 2. Background technology: Lubrication is to add a lubricant between the frictional contact surfaces in relative motion, so that a lubricating film is formed between the two contacting surfaces, and the dry friction becomes the internal friction between the molecules inside the lubricant, so as to reduce friction, reduce wear and prolong the use of mechanical equipment purpose of life. Modern lubricants can be roughly divided into the following categories: 1 Liquid lubricants: including animal and vegetable oils, mineral oils, synthetic oils, water-based liquids, etc. 2 Semi-solid lubricant: It is a lubricating material - grease that is in a semi-fluid state at room temperature and pressure...

AI Technical Summary

Problems solved by technology

The disadvantage is that the oil film strength of the liquid lubricant is not high enough. When the boundary lubrication or the equipment stops running, the liquid lubricant returns to the oil pan (or oil tank). At this time, the thickness of the lubricating film on the friction pair is less than 1um (complete liquid lubrication The thickness of the oil film should be in the range of 2 ~ 10um, and it must be continuous), this thickness cannot meet the requirements of equipment operation

At present, there are single type graphite type and single molybdenum disulfide type lubricating greases on the market, but because the purity of the solid lubricant is not well considered, the synergy between the solid lubricants is not reasonable for different applications The selection of the optimal particle size distribution zone of the solid lubricating material and the formula of supporting additives adapted to it (according to the difference in the surface roughness of various friction pairs), so that the lubricating film cannot reach the optimal optimum during use. Good lubricating effect, but the oil film strength is not as ideal

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