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Lubricating grease special for plastic gear and preparation method of lubricating grease

A lubricating grease and gear technology, which is applied in the field of lubricating grease for plastic gears and its preparation, can solve the problems of poor compatibility of plastic materials, large starting resistance at low temperature, poor oxidation resistance, etc., and achieve good adhesion, small low temperature resistance, The effect of small friction coefficient

Active Publication Date: 2014-12-03
安徽中天石化股份有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, lubricants made of polymer materials on the market can meet high-temperature performance and adhesion performance, but low-temperature start-up resistance is large and noise is large. Greases made of metal soaps have poor oxidation resistance, are easy to lose at high temperatures, and are compatible with plastic materials. Poor performance, short service life and no insulation

Method used

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  • Lubricating grease special for plastic gear and preparation method of lubricating grease

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Embodiment 1

[0022] The embodiment of the present invention provides a kind of lubricating grease specially used for plastic gears, which comprises: 4-8 parts of aniline, 3-5 parts of cyclohexylamine, MDI (diphenylmethane-4,4'-diisocyanate) 3 -6 parts, 60-80 parts of base oil, 1-2 parts of antioxidant A, 2-3 parts of antioxidant B, 1-2 parts of extreme pressure and anti-wear agent, 5-10 parts of tackifier, 1.5- parts of solid lubricant 3 copies.

[0023] Wherein said base oil adopts PAO-8 synthetic oil; said antioxidant A is diphenylamine; said antioxidant B is butyl octyl zinc salt; said extreme pressure antiwear agent is trimethyl phosphate Phenol ester; the tackifier is low molecular weight polyisobutylene PB2400; the solid lubricant is boron nitride.

Embodiment 2

[0025] A preparation method of lubricating grease specially used for plastic gears,

[0026] First provide according to the weight ratio: 4-8 parts of aniline, 3-5 parts of cyclohexylamine, 3-6 parts of MDI (diphenylmethane-4,4'-diisocyanate), 60-80 parts of base oil, antioxidant A1 -2 parts, 2-3 parts of antioxidant B, 1-2 parts of extreme pressure anti-wear agent, 5-10 parts of tackifier, 1.5-3 parts of solid lubricant, and then carry out the following steps:

[0027] (1) 80% base oil is put into saponification kettle by weight proportion, and is heated up to 40-60 ℃;

[0028] (2) drop aniline and cyclohexylamine into the saponification kettle by weight and stir evenly with the mixture of step (1), and the stirring time is 5-10 minutes;

[0029] (3) Warm up to 60-80°C, put MDI into the mixture of step (2) according to specific gravity and mix, fully stir until fully dissolved;

[0030] (4) Slowly heat up for 2-3 hours, stop heating when the temperature is raised to 180-200...

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Abstract

The invention discloses lubricating grease special for a plastic gear. The lubricating grease comprises the following components in parts by weight: 4-8 parts of aniline, 3-5 parts of cyclohexane, 3-6 parts of MDI (diphenylmethane-4,4'-diisocyanate), 60-80 parts of base oil, 1-2 parts of an antioxidant A, 2-3 parts of an antioxidant B, 1-2 parts of an extreme pressure anti-wearing reagent, 5-10 parts of a tackifier and 1.5-3 parts of a solid lubricant. The invention further provides a preparation method of the lubricating grease special for the plastic gear. The lubricating grease is excellent in noise reduction and anti-wearing property, good in waterproofness, small in low temperature torque, free of dispersion at high temperature, good in adhesion property, long-lasting in noise reduction, excellent in lubrication, good in oxidation resistance, long-lasting in lubrication and long in service life, and the friction coefficient is reduced; moreover, the lubricating grease is simple in preparation method, easy to operate and good in product use effect.

Description

technical field [0001] The invention relates to the field of lubricating grease, in particular to lubricating grease specially used for plastic gears and a preparation method thereof. Background technique [0002] With the development of science and the lightweight requirements for gear products, gears have changed from metal gears to plastic gears. Compared with metal gears, plastic gears have the advantages of light weight, low working noise, wear resistance, more complex shapes can be formed, and low mass production costs. They can be used in environments where metal gears are prone to corrosion and degradation. However, due to the shrinkage and water absorption of the plastic itself, the relative strength is relatively weak, the requirements for the working environment are high, and the temperature is sensitive. Therefore, plastic gears also have disadvantages such as low precision, short life, and high requirements for the use environment. With the application of new ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M169/00C10M177/00C10N40/04C10N50/10
Inventor 高晓谋高荣权
Owner 安徽中天石化股份有限公司
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