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Angle modulation device grease composition and preparation method thereof

A grease composition and the technology of the angle adjuster, which are applied in the field of grease, can solve the problems of narrow applicable temperature range, cannot meet the needs of lower or higher working temperature, etc., and achieve easy operation, suitability for industrial production, The effect of excellent comprehensive performance

Inactive Publication Date: 2014-11-05
CHINA PETROLEUM & CHEM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the applicable temperature range of the grease composition reported above is -40°C to 150°C, and the high and low temperature performance of the above grease composition cannot meet the needs for lower or higher working temperatures in actual production. narrow range

Method used

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  • Angle modulation device grease composition and preparation method thereof
  • Angle modulation device grease composition and preparation method thereof
  • Angle modulation device grease composition and preparation method thereof

Examples

Experimental program
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Effect test

preparation example Construction

[0044] The present invention provides a method for preparing the recliner grease composition described in the above technical solution, comprising the following steps:

[0045] mixing polyalphaolefin and quaternary ammonium salt-modified bentonite, heating and then keeping the temperature constant, to obtain a precursor of the lubricating grease composition for angle adjusters;

[0046] The precursor of the recliner grease composition is mixed with an antioxidant, a metal anticorrosion agent and an extreme pressure antiwear agent to obtain a recliner grease composition.

[0047] In the present invention, the types and amounts of the polyalpha-olefin, quaternary ammonium salt modified bentonite, antioxidant, metal anticorrosion agent and extreme pressure anti-wear agent are the same as those of the polyalpha-olefin, organically modified The types and dosages of bentonite, antioxidant, metal anticorrosion agent and extreme pressure antiwear agent are the same and will not be rep...

Embodiment 1

[0061] Add 85kg of base oil and 14kg of dodecyltrimethylammonium chloride modified bentonite into a grease making kettle and mix, stir at room temperature for 10 minutes, raise the temperature to 130°C±5°C, and stir at constant temperature for 30 minutes to obtain a grease composition for angle adjusters precursor;

[0062] Under the above-mentioned constant temperature condition, add 1.2kgIRGANOX L01, 0.3kg T706 and 5kg light calcium carbonate successively to the precursor of the angle adjuster grease composition, stir for 10min, homogenize the obtained mixture, and homogenize to The penetration was 295, resulting in a recliner grease composition.

[0063] The present invention performs a performance test on the obtained angle adjuster grease composition according to the test method described in the above technical solution, and the test results are shown in Table 2, and Table 2 shows the angle adjuster grease obtained in Examples 1 to 3 of the present invention Composition ...

Embodiment 2

[0065] Add 89kg of base oil and 6kg of octadecyl dimethyl hydroxyethyl ammonium nitrate modified bentonite into the fat-making kettle and mix, stir at room temperature for 10 minutes, raise the temperature to 130°C ± 5°C, and stir at constant temperature for 40 minutes to obtain angle adjustment Precursors for grease compositions;

[0066] Under the above constant temperature conditions, 2kg 2,6-di-tert-butyl-p-cresol, 0.5kg benzothiazole and 2.5kg graphite were successively added to the precursor of the angle adjuster grease composition, stirred for 8min, and the obtained The mixture was homogenized to a penetration of 285 to obtain a grease composition for angle adjusters.

[0067] The present invention performs a performance test on the obtained angle adjuster grease composition according to the test method described in the above technical solution, and the test results are shown in Table 2, and Table 2 shows the angle adjuster grease obtained in Examples 1 to 3 of the pres...

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Abstract

The invention provides an angle modulation device grease composition. The angle modulation device grease composition comprises 80-90wt% of poly(alpha-olefin), 6-15wt% of quaternary ammonium salt-modified bentonite, 1-2wt% of an anti-oxidant, 0.2-0.5wt% of a metal corrosion inhibitor and 2-5wt% of an anti-wear reagent at extreme pressure. Through combination of poly(alpha-olefin) as base oil, quaternary ammonium salt-modified bentonite as a densifier, and anti-oxidant, metal corrosion inhibitor and anti-wear reagent at extreme pressure as additives according to the above ratio, the angle modulation device grease composition has excellent integrated performances at a temperature of -55 to 180 DEG C and can be used in the field of automobiles. The preparation method can realizes effective base oil densification only by quaternary ammonium salt-modified bentonite without use of methanol, ethanol, acetone or propylene carbonate as an assisted dispersant.

Description

technical field [0001] The invention belongs to the technical field of lubricating grease, and in particular relates to a lubricating grease composition for a recliner and a preparation method thereof. Background technique [0002] Grease, commonly known as butter or tallow, is a stable solid or semi-solid product formed by dispersing a thickener in base oil. The types of grease are: calcium-based grease, sodium-based grease, calcium-sodium-based grease and general-purpose lithium-based grease. Grease is mainly used in high and low temperature equipment in metallurgy, mining, building materials, petrochemical, machinery manufacturing, food processing, textile printing and dyeing, and papermaking industries to play the role of adhesion, wear resistance and corrosion resistance. With the advancement of science and technology, the temperature of the working environment of high and low temperature equipment changes, which puts forward higher requirements for the lubricating gre...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M169/00C10N50/10
Inventor 赵玉贞康健欧阳秋卢现菊赵先明龙胜前
Owner CHINA PETROLEUM & CHEM CORP