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Low-temperature and over-loading synthetic gear oil

A gear oil and load technology, applied in the field of lubricating oil, can solve problems such as difficult start, failure to meet gear oil viscosity and fluidity requirements, poor low temperature performance of mineral oil, etc., to achieve reduced dosage, strong shear resistance and adsorption strength , the effect of high thickening ability

Active Publication Date: 2017-11-03
北京雅士科莱恩石油化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, mineral oil products have obvious shortcomings: firstly, mineral oil has poor low-temperature performance, especially the pour point of high-viscosity lubricating oil is generally above -10°C, and it is difficult to start field operation in winter in cold regions
Therefore, the gear oil of the above invention is not suitable for low-temperature and super-heavy load conditions, and does not meet the viscosity and fluidity requirements of gear oils under low-temperature and super-heavy load conditions.

Method used

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  • Low-temperature and over-loading synthetic gear oil

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach

[0055] According to a preferred embodiment, the mass percentage of the antioxidant in the synthetic gear oil is 2.5%, the mass percentage of the rust inhibitor is 0.1%, and the mass percentage of the metal deactivator is 1.0%, and the The mass percentage of the anti-emulsion agent is 0.5%, and the mass percentage of the anti-foaming agent is an additional 0.001%.

[0056] The present invention also provides a method for preparing low-temperature super-heavy-duty synthetic gear oil, the method comprising:

[0057] Add one-half of the mixed base oil into the blending kettle, raise the temperature to 85°C±5°C, add polymethacrylate viscosity index improver and stir continuously for 1h;

[0058] Add the remaining mixed base oil and keep the temperature at 60°C,

[0059] Add antioxidant, anti-rust agent, extreme pressure anti-wear agent, metal deactivator, anti-emulsifier, friction modifier, friction modifier, anti-foaming agent in sequence and continue to circulate and stir for 2-...

Embodiment 1

[0067] Add 1 / 2 base oil into the blending kettle, raise the temperature to 85°C±5°C, add polymethacrylate viscosity index improver (7.5%) and keep stirring for 1h. Add the remaining 2 / 3 base oil, keep the temperature at 60°C and add antioxidant L57 (1.0%), antioxidant N531 (1.5%), rust inhibitor T747A (0.1%), sulfurized isobutylene T2040 (5.5%), Phosphothioate amine salt T307 (2%), calcium hexadecyl borate (2%), liquid benzotriazole derivative L39 (0.5%), thiadiazole derivative RHY581 (0.5%), anti-emulsification Agent DL32 (0.5%), friction modifier M807 (0.3%), friction modifier G-204 (0.2%), antifoaming agent C-402 (0.001%), continue to circulate and stir for 2-3 hours, add the remaining 1 / 3 base oil, cooling to get the finished product.

Embodiment 2

[0069] Add 1 / 2 base oil into the blending kettle, raise the temperature to 85°C±5°C, add polymethacrylate viscosity index improver (7.5%) and keep stirring for 1h. Add the remaining 2 / 3 base oil, keep the temperature at 60°C and add antioxidant L57 (1.0%), antioxidant N531 (1.5%), rust inhibitor T747A (0.1%), sulfurized isobutylene T2040 (5.0%), Phosphothioate amine salt T307 (2.5%), calcium hexadecyl borate (2.0%), liquid benzotriazole derivative L39 (0.5%), thiadiazole derivative RHY581 (0.5%), anti-emulsification Agent DL32 (0.5%), friction modifier M807 (0.25%), friction modifier G-204 (0.25%), and added antifoaming agent C-402 (0.001%) continue to circulate and stir for 2-3 hours, and add the remaining 1 / 3 base oil, cooling to get the finished product.

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Abstract

The invention relates to low-temperature and over-loading synthetic gear oil comprising at least the following components: an anti-wear reagent at extreme pressure, a friction modifier, a viscosity index improver, and base oil, wherein the anti-wear reagent at extreme pressure at least comprises an oil-soluble nano-borate, the viscosity index improver at least comprises a modified polymethacrylate tackifier, the friction modifier at least comprises organic molybdenum, the base oil is mixed base oil comprising polyalphaolefin and ester oil, the mass percentage of the mixed base oil is 78.4%, the mass percentage of the modified polymethacrylate tackifier is 7.5%, the mass percentage of the oil-soluble nano borate is 2%, and the mass percentage of organic molybdenum is 0.2-0.3%. The gear oil disclosed by the invention has excellent low temperature performance and can effectively prolong the life cycle of oil products, and a solid borate film formed by the borate has excellent extreme pressure resistance, can bear huge load and has excellent anti-wear and anti-friction performances.

Description

technical field [0001] The invention relates to the field of lubricating oil, in particular to a low-temperature super-heavy-duty synthetic gear oil. 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. Lubricating oil used to lubricate gear transmissions is generally called gear oil. [0003] The development trend of today's automobile field is energy saving and environmental protection. In order to improve fuel economy, automobile manufacturers adopt streamlined design and lower chassis design, so that the aerodynamic performance of the vehicle is more reasonable, and the air resistance of the vehicle when driving At the same time, the air flow throug...

Claims

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Application Information

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IPC IPC(8): C10M169/04C10N30/06C10N30/08C10N40/04
CPCC10M169/048C10M2205/0206C10M2207/10C10M2207/28C10M2207/2805C10M2207/283C10M2209/084C10M2209/1023C10M2209/104C10M2209/105C10M2215/02C10M2215/223C10M2217/041C10M2219/106C10M2227/06C10M2227/066C10N2030/06C10N2030/08C10N2040/04C10N2030/42C10N2030/43C10N2030/68C10N2030/72C10N2010/12C10N2010/04
Inventor 赫常山
Owner 北京雅士科莱恩石油化工有限公司
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