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High temperature-resistant bearing grease and preparation method thereof

A bearing lubrication and high temperature resistance technology, applied in the field of lubricating grease, can solve the problems of water resistance, low rust and corrosion resistance, inability to meet high-speed bearing operation, general extreme pressure and friction reduction, and achieve good high and low temperature performance. , the effect of low noise and simple preparation method

Inactive Publication Date: 2019-02-15
安徽中天石化股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, general bearing grease is made from lithium soap thickened with mineral base oil and added with anti-wear, anti-oxidation and other additives. Due to the limitation of the preparation process, the produced bearing grease cannot meet the operation of high-speed bearings under high and low temperature conditions. At the same time, the water resistance, rust and corrosion resistance are not high, the extreme pressure and friction reduction are average, the noise is large, and the bearing life is not good.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A kind of high temperature resistant bearing lubricating grease, comprising base oil, thickener, additive, by weight percentage, described base oil accounts for 70% of total weight, and described thickener accounts for 18% of total weight, and described additive accounts for 12% of the total weight.

[0023] Among them, in parts by weight, base oil includes: 60 parts of paraffin oil, 30 parts of polyol ester, 40 parts of di-n-octyl adipate, 20 parts of polyalphaolefin; thickener includes: 40 parts of bentonite, compound 15 parts of calcium sulfonate; additives, including: 10 parts of antioxidant, 10 parts of rust inhibitor, 9 parts of extreme pressure and antiwear agent, and 6 parts of other additives. In parts by weight, the above-mentioned antioxidants include: 4 parts of alkyl diphenylamines, 7 parts of β-naphthol, 4 parts of BHT antioxidant additives; the above-mentioned rust inhibitors include: 10 parts of barium petroleum sulfonate, petroleum 10 parts of sodium s...

Embodiment 2

[0031] A kind of high temperature resistant bearing lubricating grease, comprising base oil, thickener, additive, by weight percentage, described base oil accounts for 80% of total weight, and described thickener accounts for 12% of total weight, and described additive accounts for 8% of the total weight.

[0032] Among them, in parts by weight, base oil includes: 40 parts of paraffin oil, 45 parts of polyol ester, 25 parts of di-n-octyl adipate, 40 parts of polyalphaolefin; thickener includes: 30 parts of bentonite, compound 30 parts of calcium sulfonate; additives, including: 6 parts of antioxidant, 15 parts of rust inhibitor, 5 parts of extreme pressure and antiwear agent, and 2 parts of other additives. In parts by weight, the above-mentioned antioxidant includes: 10 parts of alkyl diphenylamine, 3 parts of β-naphthol, 2 parts of BHT antioxidant additive; the above-mentioned antirust agent includes: 15 parts of barium petroleum sulfonate, petroleum 5 parts of sodium sulfo...

Embodiment 3

[0040] A kind of high temperature resistant bearing lubricating grease, comprising base oil, thickener, additive, by weight percentage, described base oil accounts for 75% of total weight, and described thickener accounts for 10% of total weight, and described additive accounts for 15% of the total weight.

[0041] Wherein, in parts by weight, the base oil includes: 50 parts of paraffin oil, 38 parts of polyol ester, 32 parts of di-n-octyl adipate, and 30 parts of polyalphaolefin; the thickener includes: 35 parts of bentonite , 22 parts of calcium sulfonate compound; said additives include: 8 parts of antioxidant, 13 parts of antirust agent, 7 parts of extreme pressure and antiwear agent, and 4 parts of other additives. In parts by weight, the above-mentioned antioxidant includes: 7 parts of alkyl diphenylamine, 5 parts of β-naphthol, 3 parts of BHT antioxidant additive; the above-mentioned antirust agent includes: 13 parts of barium petroleum sulfonate, petroleum 8 parts of ...

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PUM

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Abstract

The invention relates to the field of lubricating grease, in particular to high temperature-resistant bearing grease and a preparation method thereof. The high temperature-resistant bearing grease comprises the following components in percentage by weight: 70-80% of base oil, 12-18% of a thickening agent and 8-15% of additives, wherein the base oil comprises paraffin oil, polyol ester, di-n-octyladipate and poly-alpha olefin; the thickening agent comprises bentonite and calcium sulfonate complex ester; and the additives comprises an antioxidant, a rust inhibitor, an extreme pressure wear-resistant agent and other additives. The invention furthermore discloses the preparation method of the high temperature-resistant bearing grease. The produced bearing grease produced has excellent high and low temperature properties, lubricating performance, water resistance and extreme pressure wear resistance, low noise and long service life. At the same time, the preparation method is simple and strong in operability.

Description

technical field [0001] The invention relates to the field of lubricating grease, in particular to a high-temperature resistant bearing lubricating grease and a preparation method thereof. Background technique [0002] Bearing grease is a lubricating oil formulated from low-viscosity synthetic lubricating oil and added with various additives such as anti-oxidation and anti-corrosion. It is suitable for lubricating high-temperature and heavy-duty bearings operating under harsh conditions, especially for sealed or semi-sealed bearings Lifelong lubrication; especially suitable for occasions that emphasize long-term uninterrupted operation and extended grease cycle; fully synthetic grease guarantees long service life of grease and various bearings, gears, shaft pins, slideways and other components lubricated; applicable It is suitable for high temperature, heavy load, humid and corrosive occasions in mining, iron and steel industry, paper making and wood industry. [0003] At pr...

Claims

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Application Information

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IPC IPC(8): C10M169/00C10N30/06C10N30/08C10N40/02
CPCC10M169/00C10M2201/041C10M2201/066C10M2201/1036C10M2205/0206C10M2205/183C10M2207/023C10M2207/2825C10M2207/2835C10M2213/062C10M2215/064C10M2215/223C10M2219/044C10M2219/0445C10M2219/066C10M2223/041C10N2030/06C10N2030/08C10N2040/02C10N2030/76C10N2010/02C10N2010/04
Inventor 高晓谋高荣权何甲生张睿智
Owner 安徽中天石化股份有限公司
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