Stokehole roller way lubricating grease and preparation method thereof

A kind of technology of roller table in front of furnace and grease, applied in the field of grease, can solve the problems of weak adhesion and unfavorable ecological environment protection, and achieve the effect of protecting metal surface, improving poor lubrication and improving extreme pressure performance.

Active Publication Date: 2015-02-04
SHANGHAI HITECRUN SPECIAL LUBRICATE SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The above polyurea greases generally use low-viscosity base oils, and there is a problem of weak adhesion at high temperatures.
CN101962593A discloses a polyurea-based grease specially used for lubricating roller table bearings in front of furnaces in the metallurgical industry. Polyisobutylene is used as an adhesive and melamine is used as a filler to improve high-temperature adhesion, but melamine is prone to produce Toxic gas, long-term use is not conducive to ecological environment protection

Method used

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  • Stokehole roller way lubricating grease and preparation method thereof
  • Stokehole roller way lubricating grease and preparation method thereof
  • Stokehole roller way lubricating grease and preparation method thereof

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preparation example Construction

[0031] The present invention further relates to the preparation method of described furnace front roller table grease, and it comprises the following steps:

[0032] (1) Mix base oil and diisocyanate, which account for 40-50% of the total base oil, according to the formula ratio, and heat to 60-80°C to dissolve;

[0033] (2) Mix the remaining base oil, which accounts for 50-60% of the total base oil, with fatty amine, heat to 60-80°C to dissolve, then add aromatic amine and naphthenic amine, and stir to dissolve;

[0034] (3) Mix the solution obtained in (1) with the solution obtained in (2), turn on the fan, stir at a constant temperature, then raise the temperature to 120°C, and then continue to heat up to 130-160°C, keep warm; preferably stir at a constant temperature for 10- 30min; preferably keep warm for 20min-2h;

[0035] (4) When cooling down to 100-120°C, add antioxidant, adhesive and solid additives, stir evenly, and leave the kettle.

Embodiment 1

[0038] Add 300kg of trimellitate Emkarate1938 (Croda Company, Inc, the same below) and 29.2kg of diphenylmethane-4,4-diisocyanate (Aike Reagent) to the grease making kettle, heat to 75°C to dissolve At the same time, in another reaction kettle with 300kg of trimellitate Emkarate1938, add 6.6kg of octadecylamine (Nanjing Jinlong Chemical Group Co., Ltd., the same below), heat to 75°C to dissolve, and then add 14.8kg of cyclohexylamine Amine (Shandong Huayang Group, the same below) and 3.56kg aniline (Shandong Haihua Co., Ltd., the same below), the mixed solution in the reaction kettle is quickly put into the fat-making kettle, the fan is turned on, and the temperature is raised to 120°C, then continue to heat up to 150°C, keep warm for 20 minutes, cool down to 110°C, add 1.8kg of p-octyl diphenylamine Vanlube81 (R.T.Vanderbilt Company, Inc, the same below), 36kg of high-viscosity complex ester Priolube3986 (Croda Company, Inc, hereinafter the same), 36kg colloidal graphite 00# ...

Embodiment 2

[0042] Add 300kg of paraffinic base oil 500SN (Zhonghai Nanlian Petrochemical Co., Ltd., the same below) and 32.3kg of toluene diisocyanate (Shanghai Reagent No. 300kg500SN, add 9kg of dodecylamine (Nanjing Hengxin Chemical Co., Ltd.), heat to 80°C to dissolve, then add 21kg of cyclohexylamine and 6.8Kg of aniline, add the mixed solution in the reaction kettle to the fat making kettle, open Fan, keep stirring at 80°C for 15 minutes, then raise the temperature to 120°C, and finally raise the temperature to 160°C, and keep it warm for 1h. Cool down to 110°C, add 1.8kg of p-octyl diphenylamine Vanlube81, 60kg of high-viscosity complex ester Priolube3986, 48kg of colloidal graphite 00#, and homogeneously grind to obtain a finished product.

[0043] The detection data of embodiment 2

[0044]

[0045]

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Abstract

The invention relates to stokehole roller way lubricating grease and a preparation method thereof. The lubricating grease adopts high-viscosity compound ester and an anti-wear lubricating agent, such as graphite, so that the lubricating grease has good high-temperature lubricating adhesiveness and a good bearing resistance capacity, and is particularly applicable to lubricating of a stokehole roller way.

Description

technical field [0001] The invention relates to the field of lubricating grease, in particular to a lubricating grease suitable for roller table bearings in front of furnaces in the metallurgical industry and a preparation method thereof. Background technique [0002] The roller table in front of the furnace is an important equipment in the heating furnace area, and its working conditions are particularly complicated: high temperature, water, dust, heavy load, and large impact load. In order to ensure the service life of roller table bearings, higher requirements are put forward for the lubrication of bearings. Compared with greases prepared from metal soaps and inorganic materials as thickeners, polyurea greases have better high temperature resistance, water resistance, lubricity and long life, and are more and more used in front of furnaces Roller lubrication. CN101988022A discloses a kind of polyurea lubricating grease, and this lubricating grease comprises the alkyl na...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10M169/06C10M115/08C10M125/02C10N50/10C10N40/02C10N30/06C10N30/02
Inventor 王瑞兴程俊范海粉孙宗圣
Owner SHANGHAI HITECRUN SPECIAL LUBRICATE SCI & TECH
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