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Waterproof lubricating grease for waterproof bearings, and preparation method thereof

A technology for lubricating grease and waterproof bearings, which is applied in the direction of lubricating compositions and the petroleum industry, etc. It can solve the problems of not being able to meet the needs of lubrication, shorten the service life of bearings, increase the frictional heat of bearings, etc., achieve good lubrication, less evaporation loss, and reduce friction and the effect of wear

Inactive Publication Date: 2019-02-12
山高智能装备(山东)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above-mentioned different bearing greases can basically meet the lubrication requirements of the main shaft under various conditions, but cannot meet the lubrication requirements of the roller bearings of iron and steel machinery equipment, water conservancy engineering machinery bearings, etc.
After long-term use in wet or water-sprayed parts, the bearing will be affected by unreliable factors, which will reduce the lubrication performance, increase the friction heat of the bearing, make the grease emulsify or even fail, and corrode the rolling elements and grooves, and lose Serious and other problems, resulting in shortened bearing life

Method used

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  • Waterproof lubricating grease for waterproof bearings, and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] A waterproof lubricating grease for waterproof bearing, prepared from the following raw materials, and the parts are parts by weight:

[0051] 30 parts perfluoropolyether base oil;

[0052] 20 parts of trimethylolpropane ester;

[0053] 6 parts of dibutylene sulfide;

[0054] 9 parts of calcium dialkyldithiophosphate;

[0055] 4 parts of cuprous chloride;

[0056] 1 part of ammonium zirconium carbonate;

[0057] 1 part of polyurea;

[0058] 1 part of paraffin;

[0059] 2 parts of N-phenyl-naphthylamine;

[0060] 1 part of copper dialkyldithiophosphate;

[0061] 3 parts of dialkyldithiocarbamate;

[0062] 4 parts of 2,5-di(tert-dodecyldithio)-1,3,4-thiadiazole;

[0063] 5 parts of antimony trioxide;

[0064] 3 parts of Teflon.

[0065] A preparation method of waterproof lubricating grease for waterproof bearings, comprising the following steps:

[0066](1) Connect the stainless steel pressure-resistant polymerization kettle to the vacuum pump / argon system, va...

Embodiment 2

[0074] A waterproof lubricating grease for waterproof bearing, prepared from the following raw materials, and the parts are parts by weight:

[0075] 35 parts perfluoropolyether base oil;

[0076] 24 parts of trimethylolpropane ester;

[0077] 7 parts of dibutylene sulfide;

[0078] 11 parts of calcium dialkyldithiophosphate;

[0079] 5 parts of cuprous chloride;

[0080] 2 parts of ammonium zirconium carbonate;

[0081] 1 part of polyurea;

[0082] 1.5 parts of paraffin;

[0083] 3 parts of N-phenyl-naphthylamine;

[0084] 1 part of copper dialkyldithiophosphate;

[0085] 3.5 parts of dialkyldithiocarbamate;

[0086] 4.5 parts of 2,5-di(tert-dodecyldithio)-1,3,4-thiadiazole;

[0087] 6 parts of antimony trioxide;

[0088] 4 parts of Teflon.

[0089] A preparation method of waterproof lubricating grease for waterproof bearings, comprising the following steps:

[0090] (1) Connect the stainless steel pressure-resistant polymerization kettle to the vacuum pump / argon ...

Embodiment 3

[0098] A waterproof lubricating grease for waterproof bearing, prepared from the following raw materials, and the parts are parts by weight:

[0099] 40 parts perfluoropolyether base oil;

[0100] 28 parts of trimethylolpropane ester;

[0101] 9 parts of dibutylene sulfide;

[0102] 12 parts of calcium dialkyldithiophosphate;

[0103] 5 parts of cuprous chloride;

[0104] 2 parts of ammonium zirconium carbonate;

[0105] 3 parts of polyurea;

[0106] 2 parts of paraffin;

[0107] 3 parts of N-phenyl-naphthylamine;

[0108] 1.5 parts of copper dialkyldithiophosphate;

[0109] 4 parts of dialkyldithiocarbamate;

[0110] 5 parts of 2,5-di(tert-dodecyldithio)-1,3,4-thiadiazole;

[0111] 8 parts of antimony trioxide;

[0112] 6 parts of polytetrafluoroethylene.

[0113] A preparation method of waterproof lubricating grease for waterproof bearings, comprising the following steps:

[0114] (1) Connect the stainless steel pressure-resistant polymerization kettle to the vac...

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Abstract

The invention discloses waterproof lubricating grease for waterproof bearings, and a preparation method thereof, and belongs to the field of fine chemical engineering. The waterproof lubricating grease is characterized in that perfluoropolyether is prepared as a base oil component to be compounded with a plurality of additive components such as an extreme pressure anti-wear agent, a water repellent agent, a thickener, an antioxidant, a metal passivating agent and a filler; the added perfluoropolyether base oil does not contain hydrogen; a C-H bond is replaced by a C-F bond with high bond energy, and the C-F bond is in an oxidized state, so that the perfluoropolyether has high heat stability and oxidation stability, and the oxidative deterioration of the grease is deaccelerated; since the perfluoropolyether has a low freezing point and good viscosity-temperature characteristics, the waterproof bearings still have good lubrication, anti-corrosion and cooling properties, and strong waterresistance in environments with large temperature differences; through the synergistic effect among the components, the waterproof lubricating grease has good water resistance performance, and the problem that the bearings have short service lives due to the failure of the lubricating oil in a water environment can be well solved.

Description

technical field [0001] The invention relates to a bearing lubricating grease and a preparation method thereof, in particular to a waterproof lubricating grease for waterproof bearings and a preparation method thereof, belonging to the field of fine chemicals. Background technique [0002] Bearings are an important component in mechanical equipment and are widely used in various industries. my country is the world's third largest bearing producer, and the output of bearings is increasing at a rate of 15% every year. Grease lubrication is the most commonly used lubrication method for bearings, and it covers most of the applications of bearings. More than 80% of bearings use grease as a lubricant, so some people say that grease is the fifth largest component of bearings, and its market demand is increasing. [0003] At present, bearing grease in my country is mainly made of lithium-based grease, complex lithium-based grease, urea-based grease and complex calcium sulfonate-bas...

Claims

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Application Information

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IPC IPC(8): C10M169/04C10N40/02C10N30/08C10N30/10C10N30/06C10N30/12C10N50/10
CPCC10M169/048C10M2201/062C10M2201/081C10M2205/18C10M2207/2835C10M2213/0606C10M2213/062C10M2215/065C10M2217/045C10M2219/022C10M2219/068C10M2219/106C10M2223/045C10N2030/06C10N2030/08C10N2030/10C10N2030/12C10N2040/02C10N2050/10C10N2030/26C10N2010/08C10N2010/02C10N2010/04
Inventor 丁慎中温树鹏李志静
Owner 山高智能装备(山东)有限公司