Gear oil composition and preparation method thereof

A technology of composition and gear oil, applied in the direction of lubricating composition, petroleum industry, additives, etc., can solve the problems of general extreme pressure and anti-wear performance, accelerated oil product failure, shortened life and other problems, achieve good anti-oxidation ability, improve The effect of oil change interval and improving service life

Active Publication Date: 2013-07-17
SHANGHAI HITECRUN SPECIAL LUBRICATE SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, compared with other types of lubricants that do not require high extreme pressure and anti-wear properties, gear oils have more stringent requirements for the synergistic effect of antioxidants to ensure the dual performance of extreme pressure, anti-wear and anti-oxidation. However, now The gear lubricating oil products used often can only meet the needs of one aspect, and

Method used

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  • Gear oil composition and preparation method thereof
  • Gear oil composition and preparation method thereof
  • Gear oil composition and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0055] Example 1

[0056] 100 parts of water-insoluble polyether base oil Emkarox VG222 (Croda Company, Inc, the same below) was added to a stainless steel mixing kettle with a stirrer, and the temperature of the kettle was maintained at 40 °C, and then 0.6 parts of Naugalube TMQ (2,2 ,4-trimethyl-1,2-dihydroquinoline antioxidant, Uniroyal Chemical Company, Inc. the same below), 0.08 part of metal deactivator benzotriazole derivative T551 (Jinzhou Kangtai lubricant additive Co., Ltd., the same below), 1 part of antiwear agent nonyl phosphate amine salt mixture Irgalube349 (Ciba Specialty Chemicals Inc), 0.5 part of extreme pressure agent aminothioester T323 (Jinzhou Tianbu Lubricating Oil Additives Co., Ltd.), 0.002 part T901 methyl silicone oil (Jinzhou Kangtai Lubricating Oil Additives Co., Ltd., the same below), 0.003 parts of demulsifier propylene oxide / ethylene oxide block copolymer 5957 (Lubrizol Petroleum Chemical Company, the same below) was added to the blending ket...

Example Embodiment

[0061] Example 2

[0062] 100 parts of water-insoluble polyether base oil Emkarox VG222 (Croda Company, Inc, the same below) was added to a stainless steel blending kettle with a stirrer, and the temperature of the kettle was maintained at 40 °C, and then 0.8 parts of Naugalube TMQ, 0.1 part of Metal deactivator T551, 1 part of antiwear agent tricresyl phosphate, 0.4 part of extreme pressure agent vanlube972 (2,5-dimercapto-1,3,4-thiadiazole dimer and butoxytriethylene glycol) The complex of R.T.Vanderbilt Holding Company, Inc), 0.003 parts T901, 0.005 parts demulsifier 5957 was added to the blending kettle, and stirring was started until the mixture was completely dissolved, uniform and transparent, and the finished gear oil D was obtained.

[0063] The obtained gear oil compositions A, B, C and D are shown in Table 1 as verified by the test results.

[0064] Table 1

[0065]

[0066] The data results in Table 1 show that 2,2,4-trialkyl-1,2-dihydroquinoline antioxidant...

Example Embodiment

[0067] Example 3

[0068]Except that the extreme pressure agent is replaced with sulfurized isobutylene, the rest are the same as in Example 2, and the finished gear oil E is obtained. Differential scanning calorimetry (DSC) test was used to evaluate the antioxidant performance of the oil. Test conditions: the weight of the test sample was 2.00 mg, the oxygen flow rate was 100 ml / min, and in the dynamic test, the heating rate was 5 °C / min. In the static oxidation test, the temperature was 200°C. The test results of the oxidation test are shown in Table 2.

[0069] Table 2

[0070]

[0071] As can be seen from the table, the gear oil composition of the present invention has outstanding high temperature oxidation resistance.

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Abstract

The invention provides a gear oil composition and a preparation method thereof. The gear oil composition comprises lubricating oil base oil and a 2, 2, 4-trialkyl-1, 2-bihydroquinoline antioxygen and a metal deactivator. The gear oil composition provided by the invention has excellent oxidation stability and extreme pressure antiwear property, and meanwhile has excellent low temperature mobility, viscosity-temperature characteristics, shearing stability and anti-bubbling property, good comprehensive performance, and is simple in preparation method and wide in application range.

Description

technical field [0001] The present invention relates to a gear oil composition, more specifically, relates to a gear oil composition with super strong high-temperature anti-oxidation stability and excellent extreme-pressure anti-wear properties. Background technique [0002] With the requirements of gear design accuracy, streamlined design and other factors, the operating temperature and bearing load of gears are getting higher and higher, the tolerance between gears is getting smaller and smaller, and the tangential speed of gears is accelerating. Therefore, the development trend of the new generation of gear oil is to have more excellent oxidation stability and thermal stability to ensure or extend the oil change interval of the oil, and at the same time, it must have better extreme pressure and anti-wear properties, better Anti-friction and energy-saving characteristics. [0003] Generally, extreme pressure and antiwear agents (EP&AW) containing sulfur, phosphorus, and c...

Claims

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Application Information

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IPC IPC(8): C10M161/00C10M133/40C10N30/10
Inventor 张连惠范海粉王瑞霞王瑞兴
Owner SHANGHAI HITECRUN SPECIAL LUBRICATE SCI & TECH
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