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Inorganic lubricant powder and preparation method thereof

A kind of lubricant powder and inorganic technology, which is applied in the preparation of inorganic lubricant powder and the field of inorganic lubricant powder, can solve the problems of reduced sliding properties of layer structure materials, insignificant anti-friction performance, and easy agglomeration into large particles, so as to prolong life and improve The effect of mechanical traditional power, prevention of sintering and welding

Active Publication Date: 2014-03-26
北京市军鹰星润滑油加工厂
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] According to the above, the current domestic lubricating grease additives mainly use nanoparticles and layered structure materials to achieve the effect of friction reduction and anti-wear. The defects are mainly manifested in the fact that nanoparticles have anti-wear and self-repair properties, but the friction reduction performance is not obvious. , and it is easy to agglomerate into large particles in the lubricant friction, which affects the lubrication effect; although the layered structure material has a sliding effect, the lack of support between the layers of the layered structure material leads to a decrease in sliding performance, especially when the layered structure material is under high load. Slidability reduction is more pronounced

Method used

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Embodiment 1

[0032]1) Add 25 parts by weight of spherical titanium oxide ceramic nanopowder and 3 parts by weight of octadecyltrimethylammonium bromide into a high-pressure homogenizer, and obtain a 200- With an air velocity of 300m / s, the flowing powder forms strong turbulence and vortex, and the melt and sol formed by the modifier modify the surface of the powder to obtain a modified spherical ceramic nanopowder;

[0033] 2) Mix 60 parts by weight of pyrophyllite mineral powder and 8 parts by weight of expansion colloid in a high-speed mixer at a speed of 800 rpm for 15 minutes, and age for 24 hours;

[0034] 3) Add the modified spherical ceramic nanopowder and 300 parts by weight of the dispersion liquid obtained in step 1) to step 2), and disperse for 60 minutes at a speed of 1500rpm. The modified spherical ceramic nanopowder and the colloidal cation in the layered structure The exchange occurs, and the bond force between the layer structure mineral layers enters the layered structure ...

Embodiment 2

[0037] 1) Add 35 parts by weight of spherical zirconia ceramic nanopowder and 2 parts by weight of cetylpyridinium bromide into a high-pressure homogenizer, and the spherical ceramic nanopowder and modifier will obtain 200-300m / s under high pressure The airflow velocity is high, the flowing powder forms strong turbulence and vortex, the melt and sol formed by the modifier modify the surface of the powder, and the modified spherical ceramic nano-powder is obtained;

[0038] 2) Mix 65 parts by weight of montmorillonite mineral powder and 6 parts by weight of expansion colloid in a high-speed mixer at a speed of 800 rpm for 10 minutes, and age for 24 hours;

[0039] 3) Add the modified spherical ceramic nanopowder and 200 parts by weight of the dispersion liquid obtained in step 1) to step 2), and disperse at a speed of 1200rpm for 45min, the modified spherical ceramic nanopowder and the colloidal cation in the layered structure The exchange occurs, and the bond force between the...

Embodiment 3

[0042] 1) Add 30 parts by weight of spherical alumina ceramic nanopowder and 3 parts by weight of cetyltrimethylammonium bromide to a high-pressure homogenizer, and obtain 200- With an air velocity of 300m / s, the flowing powder forms strong turbulence and vortex, and the melt and sol formed by the modifier modify the surface of the powder to obtain a modified spherical ceramic nanopowder;

[0043] 2) Mix 70 parts by weight of muscovite layered structure mineral powder and 8 parts by weight of expansion colloid in a high-speed mixer at a speed of 700 rpm for 10 minutes, and age for 24 hours;

[0044] 3) Add the modified spherical ceramic nanopowder and 300 parts by weight of the dispersion liquid obtained in step 1) to step 2), and disperse for 30 minutes at a speed of 1500rpm. The modified spherical ceramic nanopowder and the colloidal cation in the layered structure The exchange occurs, and the bond force between the layer structure mineral layers enters the layered structure...

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Abstract

The invention provides an inorganic lubricant powder. The inorganic lubricant powder is characterized in that the inorganic lubricant powder is formed by layered structure materials and spherical ceramic nano powder materials through intercalation layers, and comprises the following components in parts by weight: 60-80 parts of layered structure mineral powder, 25-35 parts of spherical ceramic nano powder, 6-8 parts of expansion colloid and 2-3 parts of a modifying agent. A preparation method comprises the following steps: dispersing the spherical ceramic nano powder materials through intense turbulence of a high-pressure homogenizer, conducting surface modification under the melt or collosol state by using the modifying agent to enable the spherical ceramic nano powder materials to enter the layered structure materials through ion exchange and bonding force between mineral layers of the layered structure materials to form the lubricant powder. The lubricant powder is supported and rolled by the spherical ceramic nano materials and protected by the layered structure materials, does not degrade and lose efficiency when used in high loading lubricating grease to prolong the service life of the lubricating grease, has good lubricity and relatively high wear and compression resistant performance in high loading to greatly promote traditional power of machinery, and is the optimal choice of lubricating grease additives.

Description

technical field [0001] The invention relates to the field of inorganic powder materials, in particular to an inorganic lubricating powder which can be used for lubricating grease, and further relates to a preparation method of the inorganic lubricating powder. Background technique [0002] Lubricating grease is a kind of lubricating oil separated from petroleum and synthesized by hydrogenation, sulfonation, solvent extraction separation, etc. It is mainly used to reduce the friction between the surfaces of moving parts, and at the same time it has cooling and sealing effects on machinery and equipment. Widely used in industrial machinery lubrication and transmission lubrication, such as machine tool transmission machinery, textile machinery, lifting machinery, transportation machinery and other equipment. When the lubricating grease is used, the general working temperature is below 200°C, and the polar matter in it is on the metal surface of the friction part, which is decom...

Claims

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Application Information

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IPC IPC(8): C10M125/26C10M177/00C10N30/06
Inventor 陈庆曾军堂
Owner 北京市军鹰星润滑油加工厂