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High-temperature lubricating grease composition and preparation method

A lubricating grease composition and composition technology, applied in the field of lubricating grease, can solve problems such as unpublished patents and achieve excellent high-temperature performance

Inactive Publication Date: 2014-01-22
CHINA PETROLEUM & CHEM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] There are literatures about boron nitride high temperature grease at home and abroad, but no published patents

Method used

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  • High-temperature lubricating grease composition and preparation method
  • High-temperature lubricating grease composition and preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Add 60 grams of hexagonal boron nitride, 50 grams of F-1 micropowder graphite, and 150 grams of MCA to 740 grams and the viscosity is 100mm 2 / s PAO, heated to 100°C, and mechanically stirred for 1 hour to pre-disperse; the pre-dispersed material was dispersed again through a colloid mill to obtain the finished grease. The lubricating grease performance that process formula of the present invention makes is listed in the following table:

[0033]

[0034] It can be seen from the above table that the high temperature performance, extreme pressure resistance performance and oxidation stability performance of the lubricating grease of the present invention are all very good.

[0035] The material ratio is described as follows:

[0036] The thickener accounts for 6% of the total grease,

[0037] Base oil accounts for 74% of the total grease,

[0038] F-1 micronized graphite accounts for 5% of the total grease,

[0039] MCA accounts for 15% of the total grease.

Embodiment 2

[0041] Add 160 grams of hexagonal boron nitride, 150 grams of F-1 micropowder graphite, and 20 grams of MCA to 670 grams and the viscosity is 40mm 2 / s PAO, heated to 90°C, and mechanically stirred for 1 hour to pre-disperse; the pre-dispersed material was dispersed again through a colloid mill to obtain the finished grease. The lubricating grease performance that process formula of the present invention makes is listed in the following table:

[0042]

[0043] It can be seen from the above table that the high temperature performance, extreme pressure resistance performance and oxidation stability performance of the lubricating grease of the present invention are all very good.

[0044] The material ratio is described as follows:

[0045] Thickener accounts for 16% of the total amount of grease,

[0046] Base oil accounts for 67% of the total grease,

[0047] F-1 micropowder graphite accounts for 15% of the total amount of grease,

[0048] MCA accounts for 2% of the tot...

Embodiment 3

[0050] Add 150 grams of hexagonal boron nitride, 90 grams of F-1 fine powder graphite, and 50 grams of MCA to 710 grams and the viscosity is 2000mm 2 / s synthetic hydrocarbon base oil, heated to 100°C, and mechanically stirred for 1 hour to pre-disperse; the pre-dispersed material was dispersed again through a colloid mill to obtain the finished grease. The lubricating grease performance that process formula of the present invention makes is listed in the following table:

[0051]

[0052] It can be seen from the above table that the high temperature performance, extreme pressure resistance performance and oxidation stability performance of the lubricating grease of the present invention are all very good.

[0053] The material ratio is described as follows:

[0054] The thickener accounts for 15% of the total grease,

[0055] Base oil accounts for 71% of the total grease,

[0056] F-1 micropowder graphite accounts for 9% of the total grease,

[0057] MCA accounts for 5...

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Abstract

The invention provides a high-temperature lubricating grease composition and a preparation method. The preparation method comprises the following steps of adding boron nitride and an anti-wear reagent at extreme pressure into base oil according to a certain proportion, mixing, heating to 60-160 DEG C, carrying out pre-dispersion by mechanical stirring with the pre-dispersion time being 0.5-1 hour; carrying out pre-dispersion again on pre-dispersed materials by a colloid mill, adjusting the dispersing effect by adjusting the fineness of the colloid mill, and when the penetration is proper, carrying out filling. The lubricating grease provided by the invention has the advantages that due to selection of a thickening agent with high-temperature performance and the base oil with high-temperature performance and addition of a solid lubricating agent with good high-temperature performance as the anti-wear reagent at extreme pressure, the lubricating grease has excellent high-temperature performance, anti-wear performance at extreme pressure and oxidation stability and obtains better technical effects. The high-temperature lubricating grease composition provided by the invention can be applied to lubrication and protection of high-temperature mechanical equipment in the industries of ceramic, metallurgy and machining and the like.

Description

technical field [0001] The invention belongs to the technical field of lubricating grease, and in particular relates to a high-temperature lubricating grease composition and a preparation process. The lubricating grease has excellent high-temperature resistance, extreme-pressure anti-wear performance and oxidation stability, and can meet the requirements of ceramics, metallurgy, and mechanical processing. Lubrication and protection of high-temperature mechanical equipment in other industries. Background technique [0002] With the continuous improvement of the level of industrialization, the operating temperature requirements of many lubricating parts are getting higher and higher, and higher requirements are also put forward for the high temperature resistance of lubricating grease. Most commonly used lubricating grease will soften, melt or volatilize at high temperature, thus losing its lubricating effect, resulting in machine wear, increased noise, and seizure, making it ...

Claims

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Application Information

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IPC IPC(8): C10M169/00C10N30/06
Inventor 张广辽赵文峰吴宝杰高艳青申明主
Owner CHINA PETROLEUM & CHEM CORP
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