Long-life high-temperature bearing grease and preparation method thereof

A high-temperature bearing and lubricating grease technology, applied in the field of lubricating grease, can solve the problems of poor shear stability, affecting the service life of bearing grease, large oil separation, etc. Effect

Inactive Publication Date: 2016-11-16
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

At present, the urea-based grease is used relatively well, but its shear stability is poor and the oil separation is large, which affects the service life of the bearing grease
With the development of bearings in the direction of long life and maintenance-free, more and more stringent require

Method used

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  • Long-life high-temperature bearing grease and preparation method thereof

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Comparison scheme
Effect test

Embodiment 1

[0024] A long-life high-temperature bearing grease, comprising the following raw materials in parts by weight: 12 parts of octadecylamine, 4 parts of cyclohexylamine, 9 parts of MDI (diphenylmethane-4,4'-diisocyanate), 10 parts of calcium petroleum sulfonate 1 part of petroleum ether, 100 parts of PAO-20 synthetic oil, 70 parts of polyphenylene ether, 1.5 parts of liquid mixed dialkyl diphenylamine, 0.3 parts of zinc dialkyl dithiocarbamate, 1.5 parts of aminothioester, 3 parts of borated phosphorothioate amine salt, 4 parts of sulfurized olefin cottonseed oil, 5 parts of light calcium carbonate, 1 part of ethylene-propylene copolymer, 1.5 parts of zinc naphthenate.

[0025] The preparation method of described long-life high-temperature bearing grease specifically comprises the following steps:

[0026] (1) 30% PAO-20 synthetic oil and 50% polyphenylene ether are put into the saponification kettle, and the temperature is raised to 40-50° C. to stop heating, and octadecylamine ...

Embodiment 2

[0035] A long-life high-temperature bearing grease, comprising the following raw materials in parts by weight: 14 parts of octadecylamine, 5 parts of cyclohexylamine, 10 parts of MDI (diphenylmethane-4,4'-diisocyanate), 15 parts of calcium petroleum sulfonate 2 parts of petroleum ether, 110 parts of PAO-20 synthetic oil, 80 parts of polyphenylene ether, 1.8 parts of liquid mixed dialkyl diphenylamine, 0.5 parts of zinc dialkyl dithiocarbamate, 2 parts of thiocarbamate, 4 parts of borated phosphorothioate amine salt, 5 parts of sulfurized olefin cottonseed oil, 6 parts of light calcium carbonate, 1.5 parts of ethylene-propylene copolymer, 1.8 parts of zinc naphthenate.

[0036] The preparation method of described long-life high-temperature bearing grease specifically comprises the following steps:

[0037](1) 30% PAO-20 synthetic oil and 50% polyphenylene ether are put into the saponification kettle, and the temperature is raised to 40-50° C. to stop heating, and octadecylamine...

Embodiment 3

[0046] A long-life high-temperature bearing grease, comprising the following raw materials in parts by weight: 15 parts of octadecylamine, 6 parts of cyclohexylamine, 12 parts of MDI (diphenylmethane-4,4'-diisocyanate), 18 parts of calcium petroleum sulfonate 3 parts of petroleum ether, 120 parts of PAO-20 synthetic oil, 90 parts of polyphenylene ether, 2 parts of liquid mixed dialkyl diphenylamine, 0.8 parts of zinc dialkyl dithiocarbamate, 3 parts of aminothioester, Borated phosphorothioate amine salt 5 parts, sulfurized olefin cottonseed oil 6 parts, light calcium carbonate 8 parts, ethylene-propylene copolymer 2 parts, zinc naphthenate 2 parts.

[0047] The preparation method of described long-life high-temperature bearing grease specifically comprises the following steps:

[0048] (1) 30% PAO-20 synthetic oil and 50% polyphenylene ether are put into the saponification kettle, and the temperature is raised to 40-50° C. to stop heating, and octadecylamine and cyclohexylamin...

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Abstract

The invention discloses long-life high-temperature bearing grease which comprises the following raw materials in parts by weight: 12 parts of octadecylamine, 4 parts of cyclohexane, 9 parts of MDI, 10 parts of petroleum calcium sulfonate, 1 part of petroleum ether, 100 parts of base oil A, 70 parts of base oil B, 1.5 parts of an antioxidant A, 0.3 part of an antioxidant B, 1.5 parts of an anti-wear reagent A at extreme pressure, 3 parts of an anti-wear reagent B at extreme pressure, 4 parts of an oiliness agent, 5 parts of a stabilizer, 1 part of a tackifier and 1.5 parts of anti-rust agent. During preparation, the various raw materials are subjected to stirring reaction under the required order according to different temperature and time parameters and treated according to related process requirements. The grease has excellent high temperature resistance, lubricating property, adhesion, water resistance and extreme pressure anti-wear property, excellent shearing resistance, thermal stability and sealing property, as well as excellent oxidation resistance, chemical corrosion resistance and rustproof property and can realize long-life lubrication of each equipment bearing. Moreover, the preparation method is simple, easy to operate, wide in product purposes and good in effect.

Description

technical field [0001] The invention relates to the field of lubricating grease, in particular to a long-life high-temperature bearing lubricating grease and a preparation method thereof. Background technique [0002] As we all know, bearings are used in a wide range of applications, from general environments such as automobiles, metallurgy, and machinery to special environments such as electronic components, liquid crystals, semiconductors, vacuum equipment, and chemical industries. Bearings are involved. In recent years, my country's long-life lubricating bearing industry has developed strongly, and the demand for long-life lubricating bearings has increased significantly, such as aerospace bearings, high-speed precision bearings for machine tool spindles, precision angular contact ball bearings for ball screw supports, high-speed electric spindle bearings, Precision bearings for machine tools in the photovoltaic industry, turntable bearings, wind power bearings, joint bear...

Claims

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Application Information

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IPC IPC(8): C10M169/06C10N40/02C10N30/06C10N30/10C10N30/12C10N50/10
CPCC10M169/06C10M2201/062C10M2203/0206C10M2203/022C10M2205/022C10M2205/024C10M2207/16C10M2209/103C10M2215/00C10M2215/04C10M2215/064C10M2219/022C10M2219/024C10M2219/044C10M2219/068C10M2227/00C10N2030/06C10N2030/10C10N2030/12C10N2030/26C10N2030/68C10N2040/02C10N2050/10C10N2010/04
Inventor 高晓谋高荣权何甲生
Owner 安徽中天石化股份有限公司
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