Wear-resistant high-temperature-resistant lubricating grease and preparation method and application thereof

A high temperature resistant grease and grease technology, applied in the field of grease, can solve the problems of reduced service life, serious grease rejection, increased wear, etc., and achieves small water loss, good extreme pressure performance, and good high temperature performance. Effect

Active Publication Date: 2020-06-12
郑州市欧普士科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the lubricating grease for roll bearings is prone to excessive oil flow and severe grease rejection under high temperature and heavy load conditions, which will lead to increased wear and reduced service life

Method used

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  • Wear-resistant high-temperature-resistant lubricating grease and preparation method and application thereof
  • Wear-resistant high-temperature-resistant lubricating grease and preparation method and application thereof
  • Wear-resistant high-temperature-resistant lubricating grease and preparation method and application thereof

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preparation example Construction

[0027] In the present invention, the preparation method of the three-component lithium complex soap preferably comprises the following steps: under airtight conditions, after heating and mixing 12-hydroxystearic acid, sebacic acid, boric acid and lithium hydroxide in water, Heat and pressurize to obtain a thickener. In the present invention, the heating and mixing temperature is preferably 80-90° C., the heating and pressing temperature is preferably 150-155° C., the pressure is preferably 0.42-0.45 MPa, and the time is preferably 2-3 hours.

[0028] In the present invention, based on the mass parts of the base oil, the raw materials for preparing the grease include 5 to 10 parts by mass of a solid lubricant, the solid lubricant is preferably a mixture of graphite fine powder and molybdenum disulfide fine powder, the The particle size of the graphite fine powder is preferably 100-300 mesh; the particle size of the molybdenum disulfide fine powder is preferably 0.3 μm-1.2 μm, a...

Embodiment 1

[0052] Fill 95 parts of base oil into the saponification tank and heat to 60°C, put in 3.2 parts of pulverized adhesive (hydrogenated styrene-isoprene copolymer) and 1.7 parts of high alkali value synthetic calcium sulfonate; heat to 80°C , put in 19 parts of 12-hydroxystearic acid, heat to 85°C, put in 6.0 parts of sebacic acid and 1.2 parts of boric acid, heat to 90°C, put in 6.4 parts of lithium hydroxide monohydrate, cover and heat up, keep the temperature at 155°C for 2.5 hours , the pressure is maintained at 0.42MPa; after pressure relief, continue to heat up to 170°C, add 6 parts of base oil, continue to heat up to 220°C, transfer to the blending kettle, carry out cyclic shearing, add antioxidant (alkylated phenyl naphthalene Amine) 1.0 parts, metal deactivator 0.8 parts, rust inhibitor (octyl decimidazole) 1.8 parts, friction modifier 0.7 parts, extreme pressure antiwear agent 2.4 parts and solid lubricant 7 parts, homogeneous, degassed, Obtain wear-resistant and high-...

Embodiment 2

[0058] Fill 98 parts of base oil into saponification tank and heat to 60°C, put in 3.0 parts of crushed hydrogenated styrene-isoprene copolymer and 1.8 parts of high alkali value synthetic calcium sulfonate; heat to 80°C, put in 12-hydroxy 20 parts of stearic acid; heat to 85°C, put in 5.9 parts of sebacic acid and 1.3 parts of boric acid; heat to 90°C, put in 6.5 parts of lithium hydroxide monohydrate, cover and heat up; keep the temperature at 150°C for 2.5 hours, and keep the pressure at 0.43 MPa; after pressure relief, continue to heat up to 170°C, add 6 parts of base oil, continue to heat up to 220°C, transfer to the blending kettle; carry out cyclic shearing, add 1.1 parts of antioxidant (alkylated phenylnaphthylamine), 1.0 parts of metal deactivator, 1.40 parts of rust inhibitor (octyl decimidazole), 0.8 parts of friction modifier, 2.6 parts of extreme pressure antiwear agent and 8 parts of solid lubricant, homogenized and degassed;

[0059] Wherein the base oil is HVI5...

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Abstract

The invention relates to the technical field of lubricating grease, and provides wear-resistant and high-temperature-resistant lubricating grease which is prepared from the following raw materials inparts by mass: 90-110 parts of base oil, 31-36.5 parts of a thickening agent; 15-18 parts of water; 5-10 parts of a solid lubricant; 2.2-3 parts of an extreme pressure anti-wear agent; 0.5-1 part of afriction modifier; 1.5-2 parts of a clearing agent; 2-3.5 parts of an adhesive; 0.5-1.5 parts of an antioxidant; 1-3 parts of an antirust agent; 0.5-1.5 parts of a metal deactivator, wherein the extreme pressure anti-wear agent comprises tricresyl phosphate, borate and a modified nano graphene dispersion liquid. The wear-resistant high-temperature-resistant lubricating grease has good wear resistance and high temperature resistance.

Description

technical field [0001] The invention relates to the technical field of lubricating grease, in particular to a wear-resistant and high-temperature resistant lubricating grease and a preparation method and application thereof. Background technique [0002] Lubricating grease is widely used in people's daily life, and can be divided into general-purpose lubricating grease and special-purpose lubricating grease according to the application. Lubricating grease for roll bearings is a special grease. In order to meet the working needs of roll bearings, the grease for roll bearings has high requirements for the wear resistance and high temperature resistance of the grease. [0003] At present, the lubricating grease for roll bearings is prone to excessive oil flow and severe grease rejection under high temperature and heavy load conditions, which in turn leads to increased wear and reduced service life. Therefore, how to improve the wear resistance and high temperature resistance o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M169/00C10N30/06C10N30/08C10N40/02
CPCC10M169/00C10M2207/2825C10M2201/041C10M2201/066C10M2201/14C10M2215/223C10M2223/045C10M2223/041C10M2207/1285C10M2215/224C10M2215/065C10M2219/046C10M2205/04C10M2205/06C10M2201/087
Inventor 乔传威于坦白士豪梁浩勇李卫东
Owner 郑州市欧普士科技有限公司
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