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Open type gear oil composition

A technology of open gear and oil composition, applied in the directions of lubricating composition, petroleum industry, additives, etc., can solve the problems of easy brittleness, poor anti-pollution ability, air pollution and hidden safety hazards, etc.

Active Publication Date: 2007-05-16
CHINA PETROLEUM & CHEM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Although bituminous gear oil is a traditional oil, it also has some shortcomings in its application: such as poor viscosity-temperature performance, easy to become brittle in winter, easy to peel off from the gear, causing wear; Cause coking or cracking of the lubricant; when spray lubrication is used, it is easy to cause blockage of the spray system; poor anti-pollution ability, easy to absorb and retain dirt, resulting in abrasive wear of gears; uneven distribution on the tooth surface, oil change cumbersome; solvent volatilization can easily cause air pollution and safety hazards, etc.
[0008] At present, in the open gear oil composition, solid additives such as stone mill and molybdenum disulfide are mostly used. Adding solid additives will cause uneven dispersion of additives and easy deposition, which will cause different performance and quality of oil products at different levels and affect storage performance.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0063] The open gear oil composition includes: 61.3% mineral oil base oil, 30% polyisobutylene, 4% sulfurized isobutylene, 1% phosphonate, 0.1% amine and ethylene oxide condensate (T1001, purchased from Hongze, Jiangsu Province Peng Petroleum Additive Co., Ltd.), 0.5% benzotriazole, 0.1% polymethicone oil, and 3% molybdenum thiophosphate, all of which are in percentage by weight.

[0064] Among them, the mineral oil base oil is 150BS, and the viscosity at 100°C is 32.3mm 2 / s, purchased from Taiwan.

[0065] The preparation method is as follows: After adjusting each component (except oxymolybdenum thiophosphate) at 50°C for 3 hours, analyze and test the viscosity, viscosity index, anti-foaming performance, anti-emulsifying performance and other items, and then add friction improvement after passing the test. agent, adjusted at 50 ° C for 2 hours to obtain the finished product.

[0066] After testing, it belongs to 150 grade open gear oil, and the specific performance test re...

Embodiment 2

[0071] The open gear oil composition includes: 40.9% polyalphaolefin (PAO-100) synthetic base oil, 50% OCP, 3% sodium salt of phosphorothioate double ester amine, 2% phosphonate, 3% sulfurized phosphoric acid Molybdenum, 500ppm ethylene glycol ester, 1% phosphate ester, 500ppm simethicone.

[0072] The preparation method is: after mixing the components at 50°C for 4 hours, analyze and detect the viscosity, viscosity index, anti-foaming performance, anti-emulsification performance and other items, then add the friction modifier sulfur molybdenum thiophosphate, Blend for another 2 hours to get the finished product.

[0073] After testing, it belongs to 320 grade open gear oil, and the specific performance test results are shown in Table 3.

[0074] Table 3 The performance test results of the open gear oil in Example 2

[0075] project

[0076] Demulsibility a (82°C)

Embodiment 3-7

[0078] The components and contents of the open gear oil composition are shown in Table 4, and the preparation method is the same as in Example 2.

[0079] Table 4

[0080] Element

[0081] 0.3% Benzotriazole

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PUM

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Abstract

The invention discloses a new open-typed gear oil composition, which comprises the following parts: 0.2-70% thickener, 0.1-5% extreme-pressure antiwear agent, 0.005-0.5% anti-emulsifier, 0.5-8% oil-soluble friction modifier and basic oil. The invention expands the application scale of oil, which satisfies the lubricating need of different equipments.

Description

technical field [0001] The invention relates to a lubricating oil composition, in particular to a lubricating oil composition used in an open gear transmission system, and belongs to the technical field of lubricating oil additives. Background technique [0002] With the development of science and technology, the quality requirements of lubricants for mechanical equipment are getting higher and higher. Some lubricant products have corresponding technical standards. In my country's industrial production, most of the transmission and speed change in various mechanical operating equipment use gear devices. Generally, the lubricating oil used to lubricate gear transmissions including worm gears is called gear oil. Gear oil can be divided into open gear oil, industrial closed gear oil and vehicle gear oil and other types. Among them, open gear oil is used for the lubrication of gears operating under exposed conditions to prolong their service life. It is mostly used in the lub...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M137/10C10N40/04
Inventor 水琳韩宁张春辉谭海港薛玉苓李万英王向阳郭剑峰
Owner CHINA PETROLEUM & CHEM CORP
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