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Open gear lubricating grease composition

A kind of grease composition and open gear technology, applied in the direction of lubricating composition, petroleum industry, etc., can solve the problems of bad environmental impact, unsuitable grease, difficult to carry out, etc., and achieve excellent environmental friendliness, excellent extreme pressure and anti-wear performance effect

Active Publication Date: 2012-05-02
CHINA PETROLEUM & CHEM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Mineral oil accounts for about 95% of the current lubricating grease application, and its biodegradability is poor. Aromatic hydrocarbons are especially condensed ring aromatic hydrocarbons. During microbial oxidation and ring opening, due to the high activation energy of the reaction, it is not easy to proceed. It has adverse effects on the environment and is not suitable as a base oil for biodegradable greases

Method used

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  • Open gear lubricating grease composition
  • Open gear lubricating grease composition
  • Open gear lubricating grease composition

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0049] Add 40 parts (40%) of soybean oil and 25 parts (25%) of pentaerythritol ester into a small test kettle, raise the temperature to 85°C, stir for 10 minutes, add 20 parts (20%) of polyisobutene, stir for 15 minutes, add 15 part (15%) of lithium-based grease, stirred for 20 minutes, and then based on the total amount of base oil and thickener as 100%, add 0.5% diisooctyl diphenylamine, 2% dialkyl dithioaminomethyl ester, 8% potassium borate, 1% dialkyl dithiophosphate, 3% sulfurized olefin cottonseed oil, 10% graphite and 2% molybdenum disulfide. Finally, grind and homogenize on three-axis rollers, and measure the grease performance.

[0050] The performance of the lubricating grease that process formula of the present invention makes is listed in table 1

[0051] Table 1

[0052]

example 2

[0054] Add 50 parts (50%) of cottonseed oil and 15 parts (15%) of dipentaerythritol ester into a small test kettle, raise the temperature to 90°C, stir for 10 minutes, add 10 parts (10%) of polyisobutylene, stir for 15 minutes, add 25 parts (25%) of composite aluminum-based grease, stirred for 20 minutes, then based on the total amount of base oil and thickener as 100%, add 0.5% diphenylamine, 5% dialkyl dithiocarbamate , 4% borate ester, 3% potassium borate, 3% dialkyl dithiophosphate, 10% sulfurized olefin cottonseed oil, 2% calcium petroleum sulfonate, 3% graphite and 5% molybdenum disulfide. Finally, grind and homogenize on three-axis rollers, and measure the grease performance.

[0055] The performance of the lubricating grease that process formula of the present invention makes is listed in table 2

[0056] Table 2

[0057]

example 3

[0059] Add 45 parts (45%) of castor oil and 20 parts (20%) of pentaerythritol ester into a small test kettle, raise the temperature to 90°C, stir for 10 minutes, add 15 parts (15%) of polyisobutene, stir for 15 minutes, add 20 parts of (20%) lithium / calcium-based grease, stirred for 20 minutes, then based on the base oil and thickener as 100%, add 1% diphenylamine, 3% dialkyl dithiocarbamate, 2% borate ester, 5% potassium borate, 2% dialkyl dithiophosphate, 6% sulfurized olefinic cottonseed oil, 1% calcium petroleum sulfonate, 4% graphite and 8% molybdenum disulfide. Finally, grind and homogenize on three-axis rollers, and measure the grease performance.

[0060] The performance of the lubricating grease that process formula of the present invention makes is listed in table 3

[0061] table 3

[0062]

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Abstract

The invention relates to an open gear lubricating grease composition, which comprises the following components in percentage by weight: 15 to 25 percent of metallic soap, 40 to 50 percent of vegetable oil, 15 to 25 percent of ester-based oil and 10 to 20 percent of polyisobutene. Based on the 100-percent total weight of the base oil and a thickening agent, 2 to 5 percent of dialkyl dithiocarbamate, 0 to 4 percent of boric acid ester, 3 to 8 percent of borate, 1 to 3 percent of dialkyl dithiophosphate, 3 to 10 percent of sulfurized fat, 3 to 10 parts of graphite, 2 to 8 parts of molybdenum disulfide, 0.5 to 1 percent of antioxygen and 0 to 2 percent of preservative are added. The lubricating grease has the advantages that: a proper raw material mixing ratio is selected, so the extreme pressure wear-resistance performance, protective performance and adhesive performance are high; and as biodegradable raw materials are selected, environment friendliness is high.

Description

technical field [0001] The invention relates to a lubricating grease composition for open gears which is composed of base oil, thickener and additives and has excellent extreme pressure and anti-wear properties, environmental friendliness and excellent adhesion performance. Background technique [0002] With the improvement of manufacturing technology and management level and high requirements for the production efficiency of single machines, industrial and mining equipment has the potential to develop towards large-scale and high automation. Rotary kilns in cement plants, ball mills in metallurgical industries or mines, and sintering plants in The rotary mechanism of engineering machinery such as mixer, rotary kiln in pelletizing plant, electric shovel, and the open gear in the yaw and pitch system of wind power equipment have higher and higher requirements on the performance of lubricating grease. [0003] Open gear transmission refers to gear transmission that is fully or...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M169/00C10N50/10C10N40/04C10N30/06
Inventor 郭振俊吴宝杰刘庆廉赵伟高思嘉
Owner CHINA PETROLEUM & CHEM CORP
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