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Extreme-pressure additive for lubricating grease

A technology of extreme pressure additives and lubricating greases, applied in the direction of additives, lubricating compositions, petroleum industry, etc., can solve the problem of high price, achieve the effects of improving performance, prolonging service life, and improving extreme pressure resistance

Inactive Publication Date: 2011-03-23
孙世桦
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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 extreme pressure additive for lubricating grease, consisting of base oil; calcium phosphate; chlorinated paraffin; ashless dialkyldithiocarbamate; ammonium sulfonate; molybdenum acid; polyisobutylene; random polypropylene composition. The base oil is composed of three components of 32# and 68# 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 31%; calcium phosphate 30%; chlorinated paraffin 20%; ashless dialkyl dithiocarbamate 3%; ammonium sulfonate 2%; propylenediamine 4%; molybdenum carboxylate 5%; polyisobutylene 2%; atactic polypropylene 3%. The above base oil; calcium phosphate; chlorinated paraffin; ashless dialkyldithiocarbamate; ammonium sulfonate; disalicylidene propylenediamine; molybdenum carboxylate; ; Measured according to the percentage by weight that should be added to each component. Mix evenly, heat and control the temperature between 60-75°C, a...

Embodiment 2

[0019] An extreme pressure additive for lubricating grease, consisting of base oil; calcium phosphate; chlorinated paraffin; ashless dialkyldithiocarbamate; ammonium sulfonate; molybdenum acid; polyisobutylene; random polypropylene composition. The base oil is composed of two components of mineral oil M14 and vegetable oil castor oil, and the weight ratio of the two components is 1:1. The weight percent of each component is: base oil 13%; calcium phosphate 33%; chlorinated paraffin 23%; ashless dialkyl dithiocarbamate 5%; ammonium sulfonate 4%; Propylenediamine 6%; Molybdenum carboxylate 7%; Polyisobutylene 4%; Random polypropylene 5%. The above base oil; calcium phosphate; chlorinated paraffin; ashless dialkyldithiocarbamate; ammonium sulfonate; disalicylidene propylenediamine; molybdenum carboxylate; ; Measured according to the percentage by weight that should be added to each component. Mix evenly, heat and control the temperature between 60-75°C, and stir for 240 minute...

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PUM

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Abstract

The invention relates to an extreme-pressure additive for lubricating grease, which is basically characterized by comprising the following ingredients in percentage by weight: 30 to 33 percent of calcium phosphate, 20 to 23 percent of chlorcosane, 3 to 5 percent of ashless ester dialkyl dithiocarbamate, 2 to 4 percent of ammonium sulphonate, 4 to 6 percent of bis(salicylidene) propane diamine, 5 to 7 percent of molybdenum carboxylate, 2 to 4 percent of polyisobutene, 3 to 5 percent of random polypropylene and the balance of basic oil. The extreme-pressure additive is simple, convenient, economical and substantial for preparation, and can be easy implemented. The consistency of the lubricating grease can be maintained for a long time, the stability and the improvement of the extreme-pressure resistance performance of gears, bearings and mechanical components with heavy loads and impact loads can be ensured, and the full maintenance on various kinds of equipment using the lubricating grease can be realized. When the improvement of the extreme-pressure resistance performance of various kinds of mechanical equipment is ensured, various performances of the lubricating grease can be fully improved. The service life of the lubricating grease can be prolonged.

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 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 additive...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M167/00C10N30/06
Inventor 孙世桦
Owner 孙世桦