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Low-noise complex lithium-based grease

A lithium complex, low-noise technology, applied in the field of grease, can solve the problems of poor low-noise performance and poor high-temperature resistance, and achieve the effect of good low-noise performance

Active Publication Date: 2018-12-21
福建优立盛油脂有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the development of low-noise lubricating grease has become a popular research direction abroad, and there are few research reports in China at present.
Traditional lithium complex greases have excellent high temperature performance, but are poor in low noise performance. On the contrary, lithium-based greases have excellent low noise performance, but at high temperatures of 150 ° C or greater than 150 ° C, their high temperature resistance poor performance

Method used

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  • Low-noise complex lithium-based grease
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  • Low-noise complex lithium-based grease

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Described a kind of low-noise composite lithium grease, its raw material comprises by mass fraction:

[0040] Lithium stearate soap and 12 hydroxy lithium stearate soap: 13%, (the mass ratio of lithium stearate soap to 12 hydroxy lithium stearate soap is 1:4),

[0041] Base oil (ester oil / ether oil): 77.5%,

[0042] Antioxidant: 2%,

[0043] Rust inhibitor: 4.5%,

[0044] Boric acid alcohol solution: 3%.

[0045] The preparation method of described a kind of low-noise composite lithium base grease, comprises the following steps:

[0046] (1) Mix lithium hydroxide with stearic acid, 12 hydroxystearic acid, and base oil, and react at 100~130°C for 1 hour;

[0047] (2) Continue to heat up to 220~230°C and stir for 15 minutes;

[0048] (3) Transfer to the blending kettle for cooling;

[0049] (4) Add 3wt% boric acid alcohol solution, antioxidant and rust inhibitor;

[0050] (5) Grind twice with a three-roller mill;

[0051] (6) Perform filtration and degassing.

[...

Embodiment 2

[0054] Described a kind of low-noise composite lithium grease, its raw material comprises by mass fraction:

[0055] Lithium stearate soap and 12 hydroxy lithium stearate soap: 13%, (the mass ratio of lithium stearate soap to 12 hydroxy lithium stearate soap is 1:4),

[0056] Base oil (ester oil / ether oil): 79.5%,

[0057] Antioxidant: 2%,

[0058] Rust inhibitor: 4.5%,

[0059] Boric acid alcohol solution: 1%.

[0060] The preparation method of described a kind of low-noise composite lithium base grease, comprises the following steps:

[0061] (1) Mix lithium hydroxide with stearic acid, 12 hydroxystearic acid and base oil, and react at 100~130°C for 1 hour;

[0062] (2) Continue to heat up to 220~230°C and stir for 15 minutes;

[0063] (3) Transfer to the blending kettle for cooling;

[0064] (4) Add 1wt% boric acid alcohol solution, antioxidant and rust inhibitor;

[0065] (5) Grind twice with a three-roller mill;

[0066] (6) Perform filtration and degassing.

[0...

Embodiment 3

[0069] Described a kind of low-noise composite lithium grease, its raw material comprises by mass fraction:

[0070] Lithium stearate soap and 12 hydroxy lithium stearate soap: 13%, (the mass ratio of lithium stearate soap to 12 hydroxy lithium stearate soap is 1:4),

[0071] Base oil (ester oil / ether oil): 80%,

[0072] Antioxidant: 2%,

[0073] Rust inhibitor: 4.5%,

[0074] Boric acid alcohol solution: 0.5%.

[0075] The preparation method of described a kind of low-noise composite lithium base grease, comprises the following steps:

[0076] (1) Mix lithium hydroxide with stearic acid, 12 hydroxystearic acid, and base oil, and react at 100~130°C for 1 hour;

[0077] (2) Continue to heat up to 220~230°C and stir for 15 minutes;

[0078] (3) Transfer to the blending kettle for cooling;

[0079] (4) Add 0.5wt% boric acid alcohol solution, antioxidant and rust inhibitor;

[0080] (5) Grind twice with a three-roller mill;

[0081] (6) Perform filtration and degassing.

...

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Abstract

The invention relates to lubricating grease, in particular to low-noise complex lithium-based grease. The low-noise complex lithium-based grease is prepared from the following raw materials in mass percent: 13-15% of lithium stearate soup and lithium 12-hydroxy stearate soup, 70-80% of base oil (ester oil / ether oil), 1-5% of an antioxidant, 1-5% of an antirust agent and 0.5-3% of a boric acid alcohol solution. By adding the boric acid alcohol solution, the lithium-based grease provided by the invention has excellent high-temperature performance and good low-noise performance, and in the condition of 165 DEG C, the life of the lithium-based grease provided by the invention is 2-4 times that of lithium-based grease; the low-noise complex lithium-based grease is suitable for motor bearing application with low-noise performance within a wide temperature range.

Description

technical field [0001] The invention relates to a lubricating grease, in particular to a low-noise composite lithium-based grease. Background technique [0002] At present, with more and more research and development of lubricating grease, it is mainly reflected in long life, adaptability to high / low temperature, high / low speed use, low noise, etc. However, the development of low-noise lubricating grease has become a popular research direction abroad, and there are few domestic research reports on it at present. Traditional lithium complex greases have excellent high temperature performance, but are poor in low noise performance. On the contrary, lithium-based greases have excellent low noise performance, but at high temperatures of 150 ° C or greater than 150 ° C, their high temperature resistance Performance is poor. Contents of the invention [0003] The object of the present invention is to provide a low-noise lithium composite grease. The invention prepares a new t...

Claims

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Application Information

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IPC IPC(8): C10M169/06C10M177/00C10N40/02C10N30/08
CPCC10M169/06C10M177/00C10M2201/087C10M2207/1265C10M2207/1285C10N2030/08C10N2040/02C10N2030/76
Inventor 黄学宏陈仕棋吕文菁岡村征二游淑婷卢小蓉
Owner 福建优立盛油脂有限公司