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Special grease composition for dual mass flywheel and preparation method thereof

A dual-mass flywheel and grease technology, which is applied in the field of grease, can solve problems such as no grease products, and achieve excellent lubrication, excellent anti-rust performance, and good high-temperature oxidation resistance.

Inactive Publication Date: 2014-01-08
CHINA PETROLEUM & CHEM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the domestic dual-mass flywheel is in the development stage, there is no corresponding mature grease product

Method used

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  • Special grease composition for dual mass flywheel and preparation method thereof
  • Special grease composition for dual mass flywheel and preparation method thereof
  • Special grease composition for dual mass flywheel and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023]

[0024]

[0025] 400 grams of 12-hydroxystearic acid, 100 grams of azelaic acid and 700 grams of PAO (40°C viscosity 400mm 2 / s) into the reactor, heated to 90-100°C, and 102 grams of lithium hydroxide was dissolved in five times of water to prepare an alkaline solution. Add lye at 90°C of the reaction kettle, close all valves of the reaction kettle, increase the temperature and pressure, increase the pressure to 0.5-0.6MPa, heat up to 120-130°C and start constant temperature and constant pressure for 160-180 minutes. After the constant temperature is over, the temperature is increased and the pressure is released, and the pressure is released to normal pressure. At 130 to 140 ° C, 25 grams of polyisobutylene and 12.5 grams of titanium dioxide are added, and the temperature is kept constant for one hour to achieve the purpose of composite co-crystallization. After the constant temperature is over, continue to heat up, the material is heated to 200-210 °C, and the...

Embodiment 2

[0030]

[0031]

[0032] Mix 400 grams of 12-hydroxystearic acid, 100 grams of sebacic acid and 800 grams of PAO (40°C viscosity 400mm 2 / s) into the reaction kettle, heated to 90-100 °C, and 98 grams of lithium hydroxide was dissolved in five times of water to prepare an alkaline solution. Add lye at 90°C of the reaction kettle, close all valves of the reaction kettle, increase the temperature and pressure, increase the pressure to 0.5-0.6MPa, heat up to 120-130°C and start constant temperature and constant pressure for 160-180 minutes. After the constant temperature is over, the temperature is increased and the pressure is released, and the pressure is released to normal pressure. At 130-140 °C, 28 grams of polyisobutylene and 14 grams of titanium dioxide are added, and the temperature is kept constant for one hour to achieve the purpose of composite co-crystallization. After the constant temperature is over, continue to heat up, the material is heated to 200-210 °C, a...

Embodiment 3

[0037]

[0038]

[0039] Mix 400 g of 12-hydroxystearic acid, 100 g of azelaic acid and 750 g of ester oil (viscosity 380mm at 40°C) 2 / s) into the reactor, heated to 90-100°C, and 102 grams of lithium hydroxide was dissolved in five times of water to prepare an alkaline solution. Add lye at 90°C of the reaction kettle, close all valves of the reaction kettle, increase the temperature and pressure, increase the pressure to 0.5-0.6MPa, heat up to 120-130°C and start constant temperature and constant pressure for 160-180 minutes. After the constant temperature is over, the temperature is increased and the pressure is released, and the pressure is released to normal pressure. At 130-140 °C, 27 grams of polyisobutylene and 13.5 grams of titanium dioxide are added, and the temperature is kept constant for one hour to achieve the purpose of composite co-crystallization. After the constant temperature is over, continue to heat up, the material is heated to 200-210 ° C, and then...

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PUM

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Abstract

A special grease composition for a dual mass flywheel is prepared from the following raw materials: by mass, 74.5-78.5% of base oil, 16-20% of a thickener, 1% of polyisobutylene, 0.5% of titanium dioxide, 1% of an antioxidant, 3% of an extreme pressure antiwear agent and 0.05 % of an anti-rust agent. The special grease for the dual mass flywheel has good high-temperature oxidation resistance, oil distribution resistance, friction resistance, low temperature startup performance, and anti rust performance and excellent adhesion performance, and can completely be applied to lubrication of flywheel parts of passenger cars. The special grease for the dual mass flywheel has a wider use temperature range and a longer service life, and has excellent lubrication, friction reduction and vibration reduction effects on use parts.

Description

technical field [0001] The invention relates to the technical field of lubricating grease, in particular to a special lubricating grease for a dual-mass flywheel and a preparation method. Background technique [0002] Double mass flywheel (DMFW, double mass flywheel) is a new configuration that appeared in automobiles in the late 1980s. It is to divide a flywheel into two parts, primary mass and secondary mass, which are connected as a whole by spring dampers. Compared with the single-mass flywheel, the dual-mass flywheel increases the elastic buffering angle between the two masses of the flywheel, better exerts the effect of vibration isolation and vibration reduction, reduces the natural frequency between the engine and the transmission, and limits the resonance speed to the idle speed. Hereinafter, avoid resonance in the rotational speed range in which the engine operates. [0003] The primary mass of the dual-mass flywheel is kept on the engine side to play the role of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M169/00C10N40/25C10N30/06C10N30/10C10N50/10
Inventor 石俊峰康军冯强高艳青吴宝杰
Owner CHINA PETROLEUM & CHEM CORP
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