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Lubricating grease and preparation method and application thereof

A technology of lubricating grease and dodecahydroxystearic acid, applied in the field of lubricating grease, can solve the problems such as the inability to fully meet the lubrication requirements of electric hammer cylinder, and achieve the effect of good anti-corrosion protection effect, good anti-oxidation performance and good anti-wear performance.

Inactive Publication Date: 2020-12-04
CHINA PETROLEUM & CHEM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the lubricating grease used in the working condition of the electric hammer cylinder still cannot fully meet the lubrication requirements of the working condition of the electric hammer cylinder

Method used

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  • Lubricating grease and preparation method and application thereof
  • Lubricating grease and preparation method and application thereof
  • Lubricating grease and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] This embodiment provides a lubricating grease of the present invention.

[0052] Concrete formula is by weight percentage (total amount is in 100%):

[0053]

[0054]

[0055] The complex lithium-calcium thickener is prepared from calcium hydroxide, lithium hydroxide, lauryl hydroxystearic acid and sebacic acid; the mass ratio of the calcium hydroxide to lithium hydroxide is 1:7.65; the dodecyl The mass ratio of hydroxystearic acid to the sebacic acid is 1:0.34.

[0056] The antioxidant is a mixture of GA-034 (purchased from Tianjin Lianlong New Material Co., Ltd.) and GA-032 (purchased from Tianjin Lianlong New Material Co., Ltd.) with a mass ratio of 3:1.

[0057] The base oil is a mixture of Dalian Petrochemical HVI650 (purchased from PetroChina Dalian Petrochemical Company), Mobil 500SN (purchased from Mobil Corporation), and INEOS PAO10 (purchased from INEOS Corporation) with a mass ratio of 4:4:2. Viscosity at 40°C is 101mm 2 / s.

[0058] The preparation...

Embodiment 2

[0061] This embodiment provides a lubricating grease of the present invention.

[0062] Concrete formula is by weight percentage (total amount is in 100%):

[0063]

[0064] The complex lithium-calcium thickener is prepared from calcium hydroxide, lithium hydroxide, lauryl hydroxystearic acid and sebacic acid; the mass ratio of the calcium hydroxide to lithium hydroxide is 1:7; the dodecyl The mass ratio of hydroxystearic acid to the sebacic acid is 1:0.3.

[0065] The antioxidant is a mixture of GA-034 (purchased from Tianjin Lianlong New Material Co., Ltd.) and GA-032 (purchased from Tianjin Lianlong New Material Co., Ltd.) with a mass ratio of 3:1.

[0066] The base oil is a mixture of Dalian Petrochemical HVI650 (purchased from PetroChina Dalian Petrochemical Company), Mobil 500SN (purchased from Mobil Corporation), and INEOS PAO10 (purchased from INEOS Corporation) with a mass ratio of 4:4:2. Viscosity at 40°C is 96mm 2 / s.

[0067] The preparation method is:

[0...

Embodiment 3

[0070] This embodiment provides a lubricating grease of the present invention.

[0071] Concrete formula is by weight percentage (total amount is in 100%):

[0072]

[0073] The complex lithium-calcium thickener is prepared from calcium hydroxide, lithium hydroxide, lauryl hydroxystearic acid and sebacic acid; the mass ratio of the calcium hydroxide to lithium hydroxide is 1:8; the dodecyl The mass ratio of hydroxystearic acid to the sebacic acid is 1:0.36.

[0074] The antioxidant is a mixture of GA-034 (purchased from Tianjin Lianlong New Material Co., Ltd.) and GA-032 (purchased from Tianjin Lianlong New Material Co., Ltd.) with a mass ratio of 3:1.

[0075] The base oil is a mixture of Dalian Petrochemical HVI650 (purchased from PetroChina Dalian Petrochemical Company), Mobil 500SN (purchased from Mobil Corporation), and INEOS PAO10 (purchased from INEOS Corporation) with a mass ratio of 4:4:2. Viscosity at 40°C is 105mm 2 / s.

[0076] The preparation method is:

...

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Abstract

The invention relates to the technical field of lubricating grease, and particularly discloses lubricating grease as well as a preparation method and application thereof. The lubricating grease provided by the invention takes melamine cyanurate as an anti-wear agent, takes a mixture of octyl / butyl diphenylamine and a phenol antioxidant as an antioxidant, and further comprises a composite lithium-calcium thickening agent; wherein the mass ratio of the composite lithium-calcium thickening agent to the anti-wear agent to the antioxidant is 1: (0.1-0.3): (0.2-0.5). The lubricating grease disclosedby the invention is good in oxidation resistance, good in wear resistance, good in anti-shearing performance, good in anti-corrosion protection effect, suitable for friction pair working conditions of large vibration, high temperature and high-frequency sliding, and particularly suitable for lubricating an electric hammer air cylinder.

Description

technical field [0001] The invention relates to the technical field of lubricating grease, in particular to a lubricating grease and its preparation method and application. Background technique [0002] The electric hammer is an electric rotary hammer drill with a safety clutch attached to a pneumatic hammering mechanism. The electric hammer uses the principle of piston movement to impact the drill bit through compressed gas to open holes in hard materials such as concrete, bricks, and stones. The impact movement is driven by the eccentric connecting rod mechanism driven by the rotation of the motor through the gear, so that the compressor piston reciprocates in the cylinder liner. When the electric hammer is running, it has the characteristics of large vibration, high temperature, and high-frequency sliding friction in the cylinder. Adding grease can reduce the aging and wear of the sealing rubber ring of the electric hammer cylinder, improve the protection performance, an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M169/00C10M169/06C10M177/00C10N50/10C10N30/10C10N30/06C10N30/08C10N30/12B25D17/26
CPCC10M169/00C10M169/06C10M177/00B25D17/26C10M2207/1285C10M2207/1276C10M2215/222C10M2215/064C10M2223/045C10M2205/0206C10M2203/1006
Inventor 黄江民高思嘉童刘
Owner CHINA PETROLEUM & CHEM CORP
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