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Multi-use universal aviation grease

A technology for general aviation and lubricating grease, which is used in lubricating compositions, petroleum industry, etc., and can solve the problems that the performance index cannot meet the requirements and the application range of aviation grease is not wide enough.

Inactive Publication Date: 2014-03-26
PLA AIR FORCE OIL MATERIAL RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, at present, there are still problems such as 931 high-temperature aviation grease and 936 aviation grease used in our country, although some performance indicators can meet the requirements, but other performance indicators cannot meet the requirements, and the application range of the current aviation grease is still not wide enough.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0063] Mix PAO4 and PAO6 base oils at a weight ratio of 18:82 at room temperature to form a compound base oil; add boric acid to water at 90°C to prepare a saturated boric acid solution for later use.

[0064] Add 39.86kg of compounded base oil (about 2 / 3 of the total amount of compounded base oil to be added) into the 150L reactor, raise the temperature to 105°C, and then add 6.70kg of 12-hydroxystearic acid and Azelaic acid 1.49kg (the weight ratio of 12-hydroxystearic acid to azelaic acid is about 4.5:1), stirring and dissolving, adding 10.36kg of boric acid saturated aqueous solution at 90°C (about 2.47kg of boric acid is dissolved in it), fully Stir and mix evenly, keep the temperature of the reaction system at 90-95°C, then slowly add LiOH·H 2 O suspension 9.58kg (of which LiOH·H 2 The weight ratio of O to water is 1:1), add it in 25 minutes, then raise the temperature to 104°C, keep it for 2 hours, slowly raise the temperature to 180-190°C, keep it for 1.5 hours, then ...

Embodiment 2

[0067] Except that based on 100 parts by weight of the grease product, the content of base oil is 63%, the content of thickener is 29%, the content of antioxidant is 7% and the content of extreme pressure antiwear agent is 1%. The steps and material ratios in Example 1 were used to prepare grease products.

Embodiment 3

[0069]Except that based on 100 parts by weight of the grease product, the content of base oil is 70%, the content of thickener is 26%, the content of antioxidant is 3% and the content of extreme pressure antiwear agent is 1%. The steps and material ratios in Example 1 were used to prepare grease products.

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Abstract

The invention relates to multi-use universal aviation grease and a preparation method thereof, in particular to multi-use universal aviation grease with a boric acid thickener and a preparation method thereof. The multi-use universal aviation grease can be more widely used in the field of aviation lubrication as the performances of high-temperature bearing life, extreme pressure abrasion resistance, shear stability and the like are better and other performances can meet the related standard requirements.

Description

technical field [0001] The invention relates to a multipurpose general aviation lubricating grease and a preparation method thereof, more specifically, to a multipurpose general aviation lubricating grease containing a boric acid thickener and a preparation method thereof. Background technique [0002] Aviation grease plays an important role in ensuring the reliability and maintainability of aircraft. Aviation grease is mainly used for the lubrication and protection of bearings, gears, chains and control mechanism nodes of aviation motors, instruments, engine accessories, wheels and other components. There are many working parts that are lubricated with grease on the aircraft, and the working conditions are different. Therefore, There are many brands of aviation grease. However, with the development of the aviation industry, the type of aircraft has been continuously improved and the speed has been accelerated. New requirements have been continuously put forward for the use...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M169/00C10M177/00C10N30/06
Inventor 赵军席瀛崔习国都长飞李晓涛
Owner PLA AIR FORCE OIL MATERIAL RES INST
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