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Lubricating grease composition and preparation method thereof

The technology of a grease composition and thiadiazole derivatives, which is applied in the field of grease composition and its preparation, can solve the problems of decreased anti-wear performance, inability to meet the anti-wear durability of grease, difficulty in maintenance, etc.

Active Publication Date: 2020-05-05
CHINA PETROLEUM & CHEM CORP +1
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] According to the scheme proposed in the above literature, the addition of the above additives can improve the anti-wear performance of the grease, but it cannot meet the requirements of the anti-wear durability of the grease. Will drop significantly, it is difficult to maintain around 0.4mm

Method used

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  • Lubricating grease composition and preparation method thereof
  • Lubricating grease composition and preparation method thereof
  • Lubricating grease composition and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-12 and comparative example 1-14

[0036] According to the proportions shown in Table 2-4 (the weight ratio based on the total weight of the grease composition), add about 1 / 3 of the base oil and thickener in the reaction kettle, heat up, and gradually add about 1 / 3 3 base oil, the temperature rises to 205°C, add the remaining base oil, cool down the material, when the temperature drops to 105°C, gradually add organic calcium salt and auxiliary additives, the material is ground by a three-wheel mill to make the material evenly dispersed, Samples of grease compositions were prepared.

[0037] According to the following methods, the obtained grease composition sample is analyzed for physical and chemical properties:

[0038] Cone penetration (0.1mm, 60 times): GB / T 269-1991, the smaller the cone penetration of 60 times, the stronger the thickening ability;

[0039] Dropping point: GB / T 3498-2008, the higher the dropping point, the better the high temperature performance;

[0040] Anti-wear performance: SH / T 020...

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Abstract

The invention relates to the field of lubricating grease, and discloses a lubricating grease composition and a preparation method thereof. The lubricating grease composition contains base oil, a thickening agent, organic calcium salt and an auxiliary additive, wherein the total base number of the organic calcium salt is greater than or equal to 150mg KOH / g; and the auxiliary additive contains organic molybdenum, a thiadiazole derivative and phosphate in a weight ratio of 1: (0.02-50): (0.02-50). The method comprises the following steps: mixing the thickening agent and part of base oil, heating, mixing with the balance of base oil, cooling, and mixing with the organic calcium salt and the auxiliary additive. The lubricating grease composition disclosed by the invention shows excellent wearresistance and durability, and after the lubricating grease composition runs for 8h in a four-ball machine method wear resistance test, the wear resistance is still about 0.4 mm and the friction coefficient is less than 0.08.

Description

technical field [0001] The invention relates to the field of lubricating grease, in particular to a lubricating grease composition and a preparation method thereof. Background technique [0002] With the development of the economy, higher requirements are put forward for the precision, work efficiency, higher frequency of use, long-life characteristics, and low maintenance of mechanical equipment. Therefore, lubricating materials are required to have better anti-wear durability . If wear is caused by poor lubrication, it will directly affect the precision of mechanical equipment, cause equipment damage, reduce service life, and cause economic losses. [0003] In order to improve the anti-wear performance of grease, it is usually necessary to add anti-wear additives. Such as CN106906030A, add dibenzyl disulfide (T322), tricresyl phosphate (T306), phosphoric acid ester (T451), boride phosphoramidate (T3011), etc., the wear diameter of grease (four ball method 392N, 60min) is...

Claims

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Application Information

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IPC IPC(8): C10M169/04C10N30/06C10N50/10
CPCC10M169/04C10M2207/028C10M2207/26C10M2207/262C10M2219/046
Inventor 杨海宁姚立丹
Owner CHINA PETROLEUM & CHEM CORP
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