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Extreme pressure resisting additive for lubricating grease

A technology of extreme pressure additives and lubricating greases, used in additives, lubricating compositions, petroleum industry, etc., can solve the problem of high price, and achieve the effect of improving performance, simple preparation and stable extreme pressure resistance.

Inactive Publication Date: 2011-03-23
TIANJIN GONGBO SCI TECH DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing grease extreme pressure additives are also more expensive

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0010] An anti-extreme pressure additive for lubricating grease, consisting of base oil; calcium carbonate; molybdenum salt of phosphate ester; metal dialkyl dithiocarbamate; substituted imidazolium; Phosphorothioate; composed of polyisobutylene. The base oil is composed of three components of 150BS and 32# of mineral oil and soybean oil of vegetable oil, and the weight ratio of the three components is 1:1:1. The weight percent of each component is: base oil 32%; calcium carbonate 28%; molybdenum salt of phosphate ester 20%; dialkyl dithiocarbamate metal salt 3%; substituted imidazolium 3%; Propylenediamine 3%; Dithiophosphate 6%; Polyisobutylene 5%. The above base oil; calcium carbonate; molybdenum salt of phosphate; metal dialkyldithiocarbamate; substituted imidazolium; Parts shall be measured in percentage by weight. Mix evenly, heat and control the temperature between 55-75°C, and stir for 120 minutes to obtain the product of the present invention.

[0011] Adding this...

Embodiment 2

[0019] An anti-extreme pressure additive for lubricating grease, consisting of base oil; calcium carbonate; molybdenum salt of phosphate ester; metal dialkyl dithiocarbamate; substituted imidazolium; Phosphorothioate; composed of polyisobutylene. The base oil is composed of two components of 5 centistoke of mineral oil and castor oil of vegetable oil, and the weight ratio of the two components is 1:1. The weight percent of each component is: base oil 15%; calcium carbonate 32%; molybdenum salt of phosphate ester 22%; dialkyl dithiocarbamate metal salt 5%; substituted imidazolium 5%; Propylenediamine 5%; Phosphorodithioate 8%; Polyisobutylene 8%. The above base oil; calcium carbonate; molybdenum salt of phosphate; metal dialkyldithiocarbamate; substituted imidazolium; disalicylidene propylenediamine; Parts shall be measured in percentage by weight. Mix evenly, heat and control the temperature between 55-75°C, and stir for 240 minutes to obtain the product of the present inve...

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Abstract

The invention relates to an extreme pressure resisting additive for lubricating grease, which is basically characterized by comprising the following components in percent by weight: 28-32 percent of calcium carbonate, 20-22 percent of molybdenum phosphate, 3-5 percent of metal dialkyldithiocarbamate, 3-5 percent of substituted imidazolin, 3-5 percent of bis(salicylidene) propanediamine, 6-8 percent of dithiophos-phate, 5-8 percent of polyisobutene and the balance of base oil. The extreme pressure resisting additive has the advantage of simple, economic, practical, convenient and easy preparation method, can keep better lubricating grease consistency for a long time, ensures that the extreme pressure resisting property of a heavy load, and a gear, a bearing and a mechanical part subjected to an impact load is stabilized and the comprehensive maintenance of various devices using the lubricating grease is improved, fully improves various properties of the lubricating grease while ensuring that the extreme pressure resisting property for various mechanical devices is improved, and prolongs the service period of the lubricating grease.

Description

(1) Technical field [0001] The invention relates to a lubricating grease additive, in particular to a preparation scheme and a preparation method of an anti-extreme pressure additive for lubricating grease. (two) background technology: [0002] Because the semi-solid state of the grease makes it easier to seal the grease into the bearing, the grease also acts as a seal against contamination in wet and dusty environments. Therefore, the use of lubricating grease is in great demand. With the progress of society and the development of human science, all kinds of mechanical equipment are constantly developing, so it is required to improve the working performance of various lubricants. Grease should improve various performances because of its working characteristics. In applications where shock loading occurs, such as in large excavator bearings and some conveyor belt bearings, the rapid loading of the load can cause galling of the metal before the dissolved extreme pressure add...

Claims

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Application Information

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IPC IPC(8): C10M167/00C10N30/06
Inventor 孙世桦
Owner TIANJIN GONGBO SCI TECH DEV
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