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Heavy-load high-temperature water-resistant roll bearing lubricating grease and preparation method thereof

A roll bearing and lubricating grease technology, which is applied in the field of heavy-duty high-temperature water-resistant roll bearing lubricating grease and its preparation, can solve the problems of poor colloidal stability, easy hardening of the surface, and easy precipitation of base oil, etc., to increase shear stability , the effect of good high temperature performance

Pending Publication Date: 2022-07-15
山东联博新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the current complex calcium sulfonate-based grease has the problems of poor colloidal stability, easy precipitation of base oil in long-term storage, and easy hardening of the surface

Method used

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  • Heavy-load high-temperature water-resistant roll bearing lubricating grease and preparation method thereof

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preparation example Construction

[0028] A method for preparing heavy-duty high-temperature water-resistant roll bearing grease, comprising the following steps:

[0029] S1: First determine the proportion of each component, then mix and stir Newtonian high basic number calcium sulfonate, 80% base oil and particulate calcium carbonate in the reaction kettle, heat up to 75-95°C, and keep for 30-60min , under the condition of constant stirring, add the transforming agent and high-purity water, keep it for 60-90min, then control the kettle temperature at 105-110℃, heat at this temperature for 40-60min for dehydration, add calcium hydroxide emulsion, hydrogen Lithium oxide solution, boric acid aqueous solution, dodecylhydroxystearic acid, dibasic acid, keep stirring for 40-60min;

[0030] S2: then the temperature of the reaction kettle is raised to 130-140°C, kept constant for 20-45min, then raised to 180-210°C, refined at high temperature for 5-30min, cooled to below 150°C, added antioxidant and anti-wear agent, s...

Embodiment 1

[0035]A heavy-duty high-temperature water-resistant roll bearing grease, the heavy-duty high-temperature water-resistant roll bearing grease is composed of base oil, Newtonian high base number calcium sulfonate, particulate calcium carbonate, boric acid, transforming agent, high-purity water, calcium hydroxide, Lithium hydroxide, dibasic acid, dodecahydroxystearic acid, antioxidant, antiwear agent, and the specific gravity of each component is as follows: 40 parts of base oil, 20 parts of Newtonian high base number calcium sulfonate, particulate calcium carbonate 0.001 part, 0.4 part of boric acid, 3 parts of conversion agent, 2 parts of high-purity water, 1 part of calcium hydroxide, 1 part of lithium hydroxide, 1 part of dibasic acid, 1 part of dodecahydroxystearic acid, 0.1 part of antioxidant, anti-wear dose 0.5 servings.

[0036] The base oil is a mixture of mPAO and diester, mPAO is SpectraSyn Elite 65, and the diester is dioctyl sebacate.

[0037] The Newtonian overbas...

Embodiment 2

[0048] A heavy-duty high-temperature water-resistant roll bearing grease, the heavy-duty high-temperature water-resistant roll bearing grease is composed of base oil, Newtonian high base number calcium sulfonate, particulate calcium carbonate, boric acid, transforming agent, high-purity water, calcium hydroxide, Lithium hydroxide, dibasic acid, dodecahydroxystearic acid, antioxidant, antiwear agent, and the specific gravity of each component is as follows: 50 parts of base oil, 35 parts of Newtonian high base number calcium sulfonate, particulate calcium carbonate 0.01 part, 1 part of boric acid, 5 parts of conversion agent, 10 parts of high-purity water, 6 parts of calcium hydroxide, 6 parts of lithium hydroxide, 8 parts of dibasic acid, 8 parts of dodecylhydroxystearic acid, 2 parts of antioxidant, antioxidant Grinding agent 1.5 parts.

[0049] Described base oil is the mixture of mPAO and diester, mPAO is SpectraSyn Elite 65, SpectraSynElite 150, SpectraSyn Elite 300, diest...

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Abstract

The invention discloses heavy-load high-temperature water-resistant roller bearing lubricating grease and a preparation method thereof. The heavy-load high-temperature water-resistant roll bearing lubricating grease is prepared from base oil, Newtonian high-base-number calcium sulfonate, particle calcium carbonate, boric acid, a transforming agent, high-purity water, calcium hydroxide, lithium hydroxide, binary acid, 12-hydroxystearic acid, an antioxidant and an anti-wear agent. The composite thickening agent is used for improving the composite calcium sulfonate-based mechanical stability, especially reducing the consistency change value of the composite calcium sulfonate-based lubricating grease in the storage process, so that the colloidal stability of the composite calcium sulfonate-based lubricating grease is improved. Meanwhile, the high-temperature oxidation resistance, the extreme pressure anti-wear performance and the anti-rust performance of the composite calcium sulfonate-based lubricating grease are improved.

Description

technical field [0001] The invention relates to the technical field of grease preparation, in particular to a heavy-load, high-temperature, water-resistant roll bearing grease and a preparation method thereof. Background technique [0002] The rolling mill is the key equipment related to the quality of the steel in the steel production process. The rolling mill continuously or reciprocates the high-pressure rolling of the billet, and its working conditions are very complex. Due to the continuous heat radiation of the billet, the bearing temperature is high, and cooling water can enter the bearing seat during the rolling process. Therefore, the rolling mill bearing has very high requirements on the grease, which requires the grease to withstand heavy loads and withstand heavy loads. High temperature and water resistant. [0003] The appearance of complex soap base grease makes it possible for high dropping point soap base grease to enter the field of lubrication. Calcium co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M169/04C10N30/06C10N30/08C10N30/10
CPCC10M169/045C10M2215/064C10M2215/06C10M2207/144C10M2207/128C10M2215/16C10M2215/202C10M2207/124C10M2207/123C10M2207/142C10M2207/122C10M2201/062C10M2219/046C10M2201/08C10M2201/087C10M2207/2825C10M2207/2855C10N2030/06C10N2030/08C10N2030/10
Inventor 吴华
Owner 山东联博新材料科技有限公司
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