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Open type gear oil composition

An oil composition, open gear technology, applied in lubricating compositions, petroleum industry, additives, etc., can solve the problems of uneven dispersion of additives, poor viscosity-temperature performance, peeling, etc. Lubrication requirements, the effect of improving friction performance

Active Publication Date: 2010-05-05
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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  • Open type gear oil composition
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  • Open type gear oil composition

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 Hongzezhong, Jiangsu Province Peng Petroleum Additives Co., Ltd.), 0.5% benzotriazole, 0.1% polymethicone, 3% molybdenum thiophosphate, the contents are all by weight.

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

[0065] The preparation method is: after adjusting the components (except molybdenum thiophosphate) at 50°C for 3 hours, analyze and test the viscosity, viscosity index, anti-foam performance, anti-emulsification performance and other items, and add friction improvement after passing the test. The finished product can be obtained after adjusting for 2 hours at 50°C.

[0066] After testing, it belongs to 150-level open gear oil. The specific performance testing results are shown in Table 2.

[0067] Table...

Embodiment 2

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

[0072] The preparation method is: after adjusting the components at 50°C for 4 hours, analyze and test the viscosity, viscosity index, anti-foam performance, demulsification performance and other items, and then add the friction modifier sulfurized molybdenum thiophosphate at 50°C Reconcile for 2 hours to get the finished product.

[0073] After testing, it belongs to the 320-level open gear oil. The specific performance testing results are shown in Table 3.

[0074] Table 3 Example 2 Open gear oil performance test results

[0075]

[0076]

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]

[0081]

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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, machinery and equipment have higher and higher requirements for the quality of lubricants. Some lubricant products have developed corresponding technical standards. In our country's industrial production, most of the transmission and speed change in various mechanical operation equipment adopt gear devices. The lubricating oil used for lubricating gear transmissions including worm gears is generally called gear oil. Gear oil can be divided into open gear oil, industrial closed gear oil and vehicle gear oil. Among them, open gear oil is used for lubrication of gears running under exposed conditions to extend its service life. It is mostly used for lubrication systems for o...

Claims

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Application Information

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Patent Type & Authority Patents(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