Open type gear semifluid lubricating grease composition

A grease composition and open gear technology, applied in the direction of lubricating composition, petroleum industry, etc., can solve the problems of poor low temperature performance, inability to meet the requirements for use under special low temperature conditions, and leakage of open gear lubricants, etc.

Inactive Publication Date: 2018-11-23
西安石油大佳润实业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This product has excellent oxidation resistance, corrosion resistance, extreme pressure and wear resistance, water resistance and protection, and is especially suitable for the lubrication of heavy-duty open gears of steel ball coal mills working under harsh environmental conditions, but the hydrogen in it Lithium oxide is alkaline, boric acid is acidic, and both are solid, so its production process has higher requirements, not purely simple blending, product stability and other shortcomings, and cannot meet the requirements of special low temperature conditions.
[0008] The open gear semi-fluid lubricating grease composition of the present invention is mainly developed for the serious leakage of open gear lubricants in coal mines, cement and other industries, poor low-temperature performance, and inability to meet the requirements for use in open-air low-temperature environments

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Add 9.2 parts of HVIH150 base oil and 36.3 parts of HVIH220 base oil in sequence in the blending reactor, start stirring, slowly raise the temperature to 65±5°C, then add 0.2 parts of T803B pour point depressant, 17.5 parts of polymer polyisobutylene viscosity index agent, And keep stirring for 1 hour, then add 0.5 parts of T309 extreme pressure antiwear agent, 2 parts of T321, 2.25 parts of JR4308 compounding agent in sequence, maintain the reaction temperature at 70±5°C, and stir for 2-4 hours. Take the oil sample for inspection, and start to heat up the cycle after passing the test, and control the temperature at 80±5°C, add 32 parts of thickener lithium base grease, stir for 2-4 hours, control the temperature at 65-70°C, and circulate and stir until the thickener is evenly dispersed . The resulting open gear grease has a similar viscosity (-15°C) of 296.5Pa.s, dropping point: 186°C, penetration: 364 (24°C),

[0030] Copper sheet corrosion qualified (SH / 0331), evapo...

Embodiment 2

[0032] Add 9 parts of HVIH150 base oil and 36.5 parts of HVIH220 base oil in sequence in the blending reactor, start stirring, slowly raise the temperature to 65±5°C, then add 0.2 parts of T803B pour point depressant, 17.5 parts of polymer polyisobutylene viscosity index agent, And keep stirring for 1 hour, then add 2 parts of T321 extreme pressure antiwear agent, 0.75 parts of T309, 2.25 parts of JR4308 compounding agent in sequence, maintain the reaction temperature at 70±5°C, and stir for 2-4 hours. Take the oil sample for inspection, and start to heat up the cycle after passing the test. The temperature is controlled at 80±5°C. Add 31.8 parts of the thickener lithium base grease, stir for 2-4 hours, the temperature is controlled at 65-70°C, and the cycle is stirred until the thickener is evenly dispersed. .

[0033] The resulting open gear grease has a similar viscosity (-15°C) of 298Pa.s, dropping point: 187°C, penetration: 366 (24°C),

[0034] Copper sheet corrosion qua...

Embodiment 3

[0036]Add 9 parts of HVIH150 base oil and 36.5 parts of HVIH220 base oil in sequence in the blending reactor, start stirring, slowly raise the temperature to 65±5°C, then add 0.2 parts of T803B pour point depressant, 17.25 parts of polymer polyisobutylene viscosity index agent, And keep stirring for 1 hour, then add 2 parts of T321 extreme pressure antiwear agent, 1 part of T309, 2.25 parts of JR4308 compounding agent in sequence, keep the reaction temperature at 70±5℃, and stir for 2-4 hours. Take the oil sample for inspection, and start to heat up the cycle after passing the test. The temperature is controlled at 80±5°C. Add 31.8 parts of the thickener lithium base grease, stir for 2-4 hours, the temperature is controlled at 65-70°C, and the cycle is stirred until the thickener is evenly dispersed. .

[0037] The resulting open gear grease has a similar viscosity (-15°C) of 298Pa.s, dropping point: 187°C, penetration: 366 (24°C),

[0038] Copper sheet corrosion qualified (S...

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Abstract

The invention relates to an open type gear semifluid lubricating grease composition, which can meet the requirements of complicated work conditions of easy sundry invasion, poor lubrication, low-speedtransmission, easy wheel tooth abrasion and the like in open type gear transmission. Besides basic oil, the composition provided by the invention uses the specific composite multifunctional anti-oxidization wear resistant agent; the proper extreme pressure wear resistant additives, thickening agents, viscosity index improving agents and the like are compounded; the cooperated effects between theadditives can be sufficiently achieved. The lubricating grease composition has excellent anti-leakage performance, low-temperature flowing performance, good extreme pressure wear resistant performance, anti-sintering capability, anti-oxidization stability, certain anti-corrosion and anti-rust performance and water-resistant performance, so that the lubrication requirement of the open type gear inindustries of cement, coal and the like in the special environment can be met.

Description

technical field [0001] The invention relates to a lubricating grease composition, in particular to an open gear semi-fluid lubricating grease composition used in special working conditions and environments. technical background [0002] Heavy-duty open gears are a common transmission method in the raw material processing industry, and are widely used in large-scale equipment in industries such as electric power, mining, cement, steel, chemical industry, and papermaking, such as: ball mills, tube mills, rod mills, rotary kilns, drying machine, granulator, drum pulper, etc. Its main features are: heavy load, low speed, large structure size and high tooth surface roughness, harsh working conditions (such as dust, high temperature, impact load, etc.), it can transmit high force and moment, so the tooth surface bears In addition to the rolling friction at the pitch circle position of the open gear, there is also a large amount of sliding friction during the meshing process. The ...

Claims

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Application Information

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IPC IPC(8): C10M169/04C10N30/06C10N30/08C10N30/10C10N30/12C10N50/10C10N40/04
CPCC10M169/042C10N2030/06C10N2030/08C10N2030/10C10N2030/12C10N2040/04C10N2050/10
Inventor 姚文钊
Owner 西安石油大佳润实业有限公司
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