Lithium base grease and preparation method of lithium base grease

A lithium-based lubricating grease and lubricating grease technology, applied in lubricating compositions, petroleum industry, etc., can solve the problems of large water leaching loss, poor water resistance, large oil separation of steel mesh, etc., and achieve small water leaching loss , high dropping point, and small oil separation effect on the steel mesh

Active Publication Date: 2016-01-06
TIANJIN JINHAILI GREASE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] (3) Low dropping point, not resistant to high temperature;
[0006] (4) The steel mesh has large oil separation, large water loss, and poor water resistance

Method used

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  • Lithium base grease and preparation method of lithium base grease

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Embodiment 1 A kind of lithium base lubricating grease

[0033] Described lithium base lubricating grease, the mass ratio of each raw material component is:

[0034] 80 parts of base oil, 20 parts of intermediate oil, 2.2 parts of lithium hydroxide, 8 parts of acid for saponification, 1.5 parts of antioxidant, 0.5 parts of additives, 1.5 parts of rust inhibitor, and 9 parts of water.

[0035] The base oil, the model is 60N, the kinematic viscosity (40°C) is 10mm 2 / s, the viscosity index is 94, the flash point is 190°C, and the pour point is -30°C.

[0036] The intermediate oil, model is 250SN, 100 ℃ kinematic viscosity is 8mm 2 / s, the flash point is 230°C, the pour point is -18°C, and the viscosity index is 100.

[0037] The saponification acid includes stearic acid, salicylic acid and boric acid, and the mass ratio is 3:1:1.

[0038] The antioxidant includes 4-hydroxydodecanoic acid anilide, 4,4'-di-tert-octyl diphenylamine, dioctadecyl pentaerythritol diphosphit...

Embodiment 2

[0043] Embodiment 2 A kind of lithium base lubricating grease

[0044] Adopt the raw material described in embodiment 1, only change the raw material composition of lubricating grease, change into:

[0045] Described lithium base lubricating grease, the mass ratio of each raw material component is:

[0046] 81 parts of base oil, 21 parts of intermediate oil, 2.3 parts of lithium hydroxide, 10 parts of acid for saponification, 1.7 parts of antioxidant, 0.6 parts of additives, 1.6 parts of rust inhibitor, and 11 parts of water.

Embodiment 3

[0047] Embodiment 3 A kind of lithium base lubricating grease

[0048] Adopt the raw material described in embodiment 1, only change the raw material composition of lubricating grease, change into:

[0049] Described lithium base lubricating grease, the mass ratio of each raw material component is:

[0050] 83 parts of base oil, 25 parts of intermediate oil, 2.5 parts of lithium hydroxide, 11 parts of acid for saponification, 1.8 parts of antioxidant, 0.9 parts of additives, 1.9 parts of rust inhibitor, and 12 parts of water.

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Abstract

The invention provides lithium base grease, which is prepared from the following raw material ingredients in parts by mass: 80 to 83 parts of basic oil, 20 to 25 parts of middle oil, 2.2 to 2.5 parts of lithium hydroxide, 8 to 11 parts of acid for saponification, 1.5 to 1.8 parts of antioxidants, 0.5 to 0.9 parts of accessory ingredients, 1.5 to 1.9 parts of antirusting agents and 9 to 12 parts of water. The invention also provides a preparation method of the lithium base grease. The lithium base grease prepared by the method has the advantages that the NLGI thickness is No.2; the lithium base grease has no corrosivity on metal; the anticorrosive performance is the first grade; the similar viscosity (-10 DEG C, 10s<-1>) is 810 to 825pa.s; the work penetration is 270 to 275; the oxidization stability is high; the pressure drop is 3 to 5kpa under the condition of 99 DEG C, 100h; the extension work penetration change rate is small; the dripping point is as high as 180 to 206 DEG C.

Description

technical field [0001] The invention belongs to the technical field of organic synthesis, and in particular relates to a lithium-based lubricating grease and a preparation method thereof. Background technique [0002] Lithium-based grease is a multi-effect grease with the fastest development since the 1940s, the largest production volume, and the widest application field. The American Lubricating Grease Association uses the proportion of lithium-based grease in a country as a measure of its lubrication. Lithium-based grease has the advantages of good colloidal stability, mechanical stability, long service life and wide range. It is an ideal multi-purpose and long-life grease. Now it has been widely used in various Rolling bearings of various mechanical equipment, sliding bearings and the lubrication of various friction parts, but the existing lithium base grease also has the following defects: [0003] (1) Poor antioxidant capacity; [0004] (2) The lithium-based lubricati...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M169/00C10N30/12C10N30/10C10N30/02C10N50/10
Inventor 刘凤霞卢建祥
Owner TIANJIN JINHAILI GREASE CO LTD
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