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Energy-saving antifriction lithium-based lubricating grease and preparation method thereof

A lithium-based lubricating grease and base oil technology, applied in the field of energy-saving and anti-friction lithium-based lubricating grease and its preparation, can solve the problems of difficult analysis and discovery of the surface of friction pairs, equipment damage, economic loss, etc., achieve excellent extreme pressure performance, improve Wear condition, the effect of improving anti-wear performance

Pending Publication Date: 2020-06-26
无锡中石油润滑脂有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, molybdenum disulfide powder is used as a solid lubricant, but the appearance of the grease added with molybdenum disulfide is dark gray and black. The appearance of the lubricant is black and it is not easy to analyze and find, and the long-term poor lubrication will cause equipment damage and shutdown, which constitutes a major economic loss

Method used

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  • Energy-saving antifriction lithium-based lubricating grease and preparation method thereof
  • Energy-saving antifriction lithium-based lubricating grease and preparation method thereof
  • Energy-saving antifriction lithium-based lubricating grease and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Embodiment 1: a kind of energy-saving anti-friction lithium-based grease, comprising the following components by weight parts:

[0029] Base oil: 86.5 parts of mineral oil with a kinematic viscosity of 120cst at 40°C; thickener: 9 parts of lauryl hydroxystearic acid; antioxidant: 0.2 parts of N-phenyl-α-naphthylamine; solid antifriction agent: 1.9 parts Zinc sulfide-phosphate compound and 0.9 parts of bismuth sulfide, 2.8 parts in total; rust inhibitor: 0.2 parts of benzotriazole; lithium hydroxide: 1.3 parts of lithium hydroxide monohydrate.

[0030] The preparation method of energy-saving anti-friction lithium base lubricating grease, such as figure 1 shown, including the following steps:

[0031] S1. Prepare raw materials according to the ratio of each component.

[0032] S2. Add 1 / 3 of mineral oil and lauryl hydroxystearic acid into the saponification tank and mix evenly, then heat the mixture to 60°C, put lithium hydroxide monohydrate and water into the saponific...

Embodiment 2

[0035] Embodiment 2: a kind of energy-saving anti-friction lithium-based grease, comprising the following components by weight parts:

[0036] Base oil: 80 parts of mineral oil with a kinematic viscosity of 140cst at 40°C; thickener: 12.4 parts of lauryl hydroxystearic acid and 2.3 parts of sebacic acid, a total of 14.6 parts; antioxidant: 0.5 part of N-phenyl-α- Naphthylamine; solid wear reducer: 2 parts of zinc sulfide-phosphate compound and 0.5 part of bismuth sulfide, 2.5 parts in total; rust inhibitor: 0.1 part of 2,6-di-tert-butyl-p-cresol and 0.1 part of thiadiazole derivative class; lithium hydroxide: 2.5 parts of lithium hydroxide monohydrate.

[0037] The preparation method of energy-saving anti-friction lithium base lubricating grease, such as figure 1 shown, including the following steps:

[0038] S1. Prepare raw materials according to the ratio of each component.

[0039] S2. Add 1 / 3 of mineral oil and lauryl hydroxystearic acid into the saponification tank and...

Embodiment 3

[0042] Embodiment 3: a kind of energy-saving friction-reducing lithium-based grease, comprising the following components in parts by weight:

[0043]Base oil: 63 parts of mineral oil with a kinematic viscosity of 120cst at 40°C and 23 parts of poly-α-olefin synthetic base oil with a kinematic viscosity of 80cst at 40°C, a total of 85 parts; thickener: 10 parts of lauryl hydroxystearic acid; Oxidizing agent: 0.3 parts of N-phenyl-α-naphthylamine; Solid antifriction agent: 2.6 parts of zinc sulfide-phosphate compound and 0.6 parts of bismuth sulfide, 2.5 parts in total; Rust inhibitor: 0.1 part of benzotriazole; Hydroxide Lithium: 1 part of lithium hydroxide monohydrate.

[0044] The preparation method of energy-saving anti-friction lithium base lubricating grease, such as figure 1 shown, including the following steps:

[0045] S1. Prepare raw materials according to the ratio of each component.

[0046] S2. Add half of the mineral oil and lauryl hydroxystearic acid into the s...

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Abstract

The invention discloses an energy-saving antifriction lithium-based lubricating grease, and belongs to the technical field of lubricating grease preparation. The energy-saving antifriction lithium-based lubricating grease comprises the following components by weight: 75-94 parts of base oil; 5-20 parts of a thickening agent; 0.1-1 part of an antioxidant; 0.5-4 parts of a solid antifriction agent;and 0.05-0.3 part of an antirust agent. The preparation method of the lubricating grease comprises the following steps: S1, preparing the components; S2, adding the base oil, fatty acid and lithium hydroxide monohydrate into a reaction kettle, and performing sealed heating to carry out saponification reaction; S3, releasing the pressure of the reaction kettle, heating the mixture to 200-210DEG C,and performing quenching and transferring to an intermediate kettle; and S4, carrying out reflux shearing, homogenizing and cooling, adding the antioxidant, the antirust agent and the solid antifriction agent, and carrying out reflux to obtain the product. According to the lubricating grease disclosed by the invention, by selecting the proper base oil and adding the solid antifriction agent, the extreme pressure antifriction properties of the lubricating grease are improved, the equipment wear is reduced, energy is saved, and the appearance is light in color, workers can conveniently perceivethe working state of the lubricating grease, the application range is wider, and more bearing and antifriction lubricating requirements are met.

Description

technical field [0001] The invention relates to the technical field of lubricating grease preparation, in particular to an energy-saving and friction-reducing lithium-based lubricating grease and a preparation method thereof. Background technique [0002] With the development of economy and society, my country's economy continues to develop at a high speed, which has brought unprecedented challenges and challenges to the grease industry. With the development of modern industries such as petrochemical, metallurgy, papermaking, engineering, etc., more and more mechanical equipment operates under heavy load conditions and tends to be intelligent. People also have higher and higher performance requirements for the matching grease products. For greases with high requirements for heavy loads, solid additives, with their excellent lubricity, can effectively reduce wear, reduce friction coefficients, improve load capacity, enhance bonding with metals and chemical stability, and are...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M169/06C10M125/22C10M117/04C10N50/10C10N30/06
CPCC10M169/06C10M125/22C10M117/04C10M2203/1006C10M2207/1285C10M2215/065C10M2215/223C10M2201/065C10M2201/085C10M2207/127C10M2207/026C10M2219/106C10M2205/0206
Inventor 冯青姣杨晓钧程亚洲刘大波徐皓华文
Owner 无锡中石油润滑脂有限责任公司
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