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Graphite lubricating oil friction-reducing additive and preparation method thereof

A technology of anti-friction additives and lubricating oils, applied in the petroleum industry, lubricating compositions, etc., can solve problems such as unsatisfactory use effects, no additive control, easy precipitation and stratification, etc., to reduce wear of parts and prolong oil change period, the effect of improving the environment

Inactive Publication Date: 2016-10-05
青岛路比特科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Graphite is an excellent solid lubricant. There are currently products that use graphite as a lubricating oil additive. This product is only subjected to airflow or mechanical crushing. There is no suitable additive control. Graphite particles are easy to precipitate and delaminate in lubricating oil. Use Unsatisfactory effect

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A graphite lubricating oil additive comprises 10 parts by weight of graphite powder, 30 parts by weight of a dispersant, and 60 parts by weight of 60N secondary hydrogenated base oil.

[0023] Weigh the raw materials according to the ratio; add base oil into the low-temperature reaction kettle, the base oil kinematic viscosity at 40°C should not exceed 8CST, and the kinematic viscosity at 100°C should not exceed 2.4CST, then add 3 parts of dispersant, after 10-15 minutes, add particle size 2-3μm graphite powder, continue to stir and disperse, the graphite powder in the reaction kettle is put into the base oil to complete the stirring and dispersing; the stirred graphite mixture enters the colloid mill for dispersing three times, and then enters the high-pressure convection mill for crushing, the pressure Adjust to 26MPa / cm 2 , the convective relative central pressure reaches 35MPa / cm 2 As above, the graphite is pulverized sequentially under high pressure and high speed...

Embodiment 2

[0025] A graphite lubricating oil additive comprises 15 parts by weight of graphite powder, 33 parts by weight of a dispersant, and 52 parts by weight of 60N secondary hydrogenated base oil.

[0026] Weigh the raw materials according to the ratio; add base oil into the low-temperature reaction kettle, the base oil kinematic viscosity at 40°C should not exceed 8CST, and the kinematic viscosity at 100°C should not exceed 2.4CST, then add 3 parts of dispersant, after 10-15 minutes, add particle size 2-3μm graphite powder, continue to stir and disperse, the graphite powder in the reaction kettle is put into the base oil to complete the stirring and dispersing; the stirred graphite mixture enters the colloid mill for dispersing three times, and then enters the high-pressure convection mill for crushing, the pressure Adjust to 29MPa / cm 2 , the convective relative central pressure reaches 32MPa / cm 2 As above, the graphite is pulverized sequentially under high pressure and high speed...

Embodiment 3

[0028] A graphite lubricating oil additive comprises 20 parts by weight of graphite powder, 35 parts by weight of a dispersant, and 45 parts by weight of 60N secondary hydrogenated base oil.

[0029] Weigh the raw materials according to the ratio; add base oil into the low-temperature reaction kettle, the kinematic viscosity of the base oil at 40°C should not exceed 8CST,

[0030] The kinematic viscosity at 100°C is not greater than 2.4CST, then add 3 parts of dispersant, after 10-15 minutes, add graphite powder with a particle size of 2-3μm, continue to stir and disperse, put the graphite powder in the reactor into the base oil, and complete the stirring Dispersion; the stirred graphite mixture enters the colloid mill to disperse three times, and then enters the high-pressure convection mill for crushing, and the pressure is adjusted to 28MPa / cm 2 , the convective relative central pressure reaches 30MPa / cm 2 As above, the graphite is pulverized sequentially under high pressu...

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Abstract

The invention relates to a graphite lubricating oil friction-reducing additive and a preparation method thereof. The graphite lubricating oil friction-reducing additive comprises the following components: 10 to 20 parts of graphite powder, 30 to 35 parts of a dispersant and 45 to 60 parts of base oil. The graphite lubricating oil friction-reducing additive provided by the invention is added into engine lubricating oil in a proportion of 1.2% to 1.5% and into automobile transmission gear oil in a proportion of 2% to 3%, and has the following advantages: fuel oil is saved by 7% to 12% in a car with gasoline as a fuel; fuel gas is saved by 15% to 20% in the car with the fuel gas as the fuel; the fuel oil is saved by 3% to 5% in large-sized and medium-sized automobile with diesel as the fuel; the fuel gas is saved by 5% to 8% in large-sized and medium-sized automobile with the fuel gas as the fuel; wear of mechanical parts is reduced by one time or more; and the change period of the lubricating oil is prolonged by 30%.

Description

technical field [0001] The present invention relates to the application field of lubricating oil for automobiles, ships and industrial transmission systems, in particular to a graphite lubricating oil antifriction additive and an its preparation method. Background technique [0002] In today's world, friction and wear are the main reasons for material damage and mechanical equipment scrapping. Lubrication technology is an effective means to reduce friction and wear, reduce friction and wear, improve lubrication effect, and also increase the useful work output of equipment and reduce energy consumption. , an important means of environmental protection. The important method of lubrication technology is to use lubricants. Lubricants are divided into liquid lubricants, solid lubricants and solid-liquid compatible lubricants. Graphite belongs to solid-liquid compatible lubricating oil anti-friction additives. The lubricant on the friction surface forms a transfer film on the fr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M169/04C10N30/06
Inventor 刘洪良
Owner 青岛路比特科技有限公司
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