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Extreme-pressure complex aluminum-based grease composition and preparation method thereof

A lubricating grease composition and composite aluminum technology, applied in the direction of lubricating composition, petroleum industry, etc., can solve the problems of extreme pressure anti-wear performance, general anti-rust performance, etc., achieve high-temperature bearing capacity and oxidation resistance, and simplify preparation Process, the effect of good anti-rust performance

Active Publication Date: 2014-08-13
SUZHOU HUIFENG LUBRICANT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the extreme pressure anti-wear performance and anti-rust performance of the currently used composite aluminum-based grease are average, which limits its application in fields with high requirements for extreme pressure anti-wear performance and anti-rust performance. Extreme pressure anti-wear performance and anti-rust performance of aluminum-based grease

Method used

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  • Extreme-pressure complex aluminum-based grease composition and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Add 10Kg of refined mineral oil, 0.71Kg of stearic acid, 0.54Kg of aluminum isopropoxide, and 0.31Kg of benzoic acid into the reaction kettle, stir and heat to 90-120°C, keep warm for 60 minutes, add 0.2Kg of water, and continue stirring React for 90 minutes, heat up to 195-215°C, refine at this high temperature for 5 minutes, add the remaining 5Kg of refined mineral oil, add 0.075-0.75Kg of molybdenum disulfide during the cooling process, and add 0.075-0.75Kg of isobutylene sulfide, benzotriazole 0.015-0.15Kg of fatty acid amine salt and 0.015-0.45Kg of diphenylamine are mixed and stirred evenly, then ground and degassed to obtain the finished extreme pressure composite aluminum-based grease A.

Embodiment 2

[0035] Add 10Kg of refined mineral oil, 0.71Kg of stearic acid, 0.54Kg of aluminum isopropoxide, and 0.31Kg of benzoic acid into the reaction kettle, stir and heat to 90-120°C, keep warm for 90 minutes, add 0.2Kg of water, and continue stirring React for 90 minutes, heat up to 195-215°C, refine at this high temperature for 15 minutes, add the remaining 5Kg of refined mineral oil, add 0.075-0.75Kg of the mixture of molybdenum disulfide and tungsten disulfide during the cooling process, and add 0.075-0.075- 0.75Kg, 0.015-0.15Kg of benzotriazole fatty acid amine salt and 0.015-0.45Kg of diphenylamine, after mixing and stirring evenly, grinding and degassing to obtain the finished extreme pressure composite aluminum-based grease B.

Embodiment 3

[0037] Add 10Kg of mixed oil of mineral oil and synthetic oil, 0.71Kg of stearic acid, 0.54Kg of aluminum isopropoxide, and 0.31Kg of benzoic acid into the reaction kettle, stir and heat to 90-120°C, keep warm for 90min, then add 0.2 Kg water, continue to stir and react for 90 minutes, heat up to 195-215°C, refine at this high temperature for 15 minutes, add the remaining 5Kg of refined mineral oil, add 0.075-0.75Kg of a mixture of molybdenum disulfide and tungsten disulfide during the cooling process, and at the same time Add 0.075-0.75Kg of phenyl-α-naphthylamine, 0.015-0.15Kg of benzotriazole fatty acid amine salt and 0.015-0.45Kg of phenyl-α-naphthylamine, mix and stir evenly, grind and degas to obtain the finished extreme pressure compound Aluminum-based grease C.

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Abstract

The invention discloses an extreme-pressure complex aluminum-based grease composition and a preparation method thereof. The grease composition is prepared from the following raw materials by weight percent: 75%-92% of base oil, 5%-15% of complex aluminum soap thickening agent, 0.5%-5% of solid lubricant, 0.5%-5% of extreme-pressure wear-resistant agent, 0.1%-3% of antioxidant and 0.1%-1% of anti-rust agent, wherein the base oil is selected from one or a mixture of several of refined mineral oil, synthetic oil, poly-alpha-olefin and ester oil. The preparation method comprises the following steps: adding a certain quantity of the base oil and the complex aluminum soap thickening agent into a reaction kettle, reacting for a period of time, adding a certain quantity of water, reacting for a period of time, refining at a high temperature, adding the residual base oil, the solid lubricant, the extreme-pressure wear-resistant agent, the antioxidant and the anti-rust agent, cooling to room temperature, grinding the materials, degassing, and grinding again to obtain complex aluminum-based grease with stable performance. The extreme-pressure complex aluminum-based grease composition is good in anti-rust and anti-oxidation performances.

Description

technical field [0001] The invention relates to the technical field of industrial lubricants, in particular to an extreme-pressure composite aluminum-based grease composition and a preparation method thereof. Background technique [0002] Composite aluminum-based grease is a typical high-temperature grease, which has many advantages such as high dropping point, good mechanical stability, water resistance, oxidation stability, etc. Compared with other greases, it also has a unique high-temperature reversible It can basically restore the original grease state after a short period of use under extreme high temperature conditions. This feature is particularly beneficial in the metallurgical industry, especially in the lubrication of high-temperature parts such as sintered and rolled steel. At the same time, composite aluminum-based grease is all It has the smallest fiber structure in the grease, so it has excellent pumpability, especially suitable for centralized lubrication sys...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M169/04C10N30/06C10N30/12C10N50/10
Inventor 黄后权惠泽民惠进德汪帆
Owner SUZHOU HUIFENG LUBRICANT
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