Extreme pressure anti-wear lubricating grease composition and preparation method thereof

A grease composition, extreme pressure and anti-wear technology, applied in the field of grease, can solve the problems of unstable product performance, complex production process, poor lubrication stability, etc., and achieve good lubrication stability, good dispersion stability and low cost. Effect

Active Publication Date: 2017-07-11
科特龙流体科技(扬州)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the complex calcium sulfonate soap-based lubricating grease in the prior art has poor lubrication stability and poor extreme pressure and anti-wear properties; although it can be applied to occasions with various requirements for temperature, load carrying capacity and lubricating performance, but , for occasions with high temperature and load-carrying capacity requirements, a special grease is required, that is, the existing complex calcium sulfonate soap-based grease still has uncertainty in versatility, extreme pressure and anti-wear performance Further improvement is needed, and the product performance is unstable; moreover, the existing complex calcium sulfonate soap-based grease production process is relatively complicated and the production cost is high

Method used

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  • Extreme pressure anti-wear lubricating grease composition and preparation method thereof
  • Extreme pressure anti-wear lubricating grease composition and preparation method thereof
  • Extreme pressure anti-wear lubricating grease composition and preparation method thereof

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preparation example Construction

[0028] The preparation method of the extreme-pressure anti-wear grease composition provided in this example includes the following steps: After uniformly mixing the components according to the set weight percentage, heating to a temperature of 60-80°C, and then grinding to obtain the extremely Anti-wear grease composition; it is preferred to uniformly mix the components according to the set weight percentage, heat to a temperature of 70°C, and then grind; this preparation method is simple to operate, requires few procedures, and the prepared grease Excellent wear resistance, extreme pressure and stability, suitable for a wide range of applications; this temperature range is conducive to properly reducing the viscosity of the grease without affecting the performance of the final grease. Proper temperature rise and viscosity reduction are conducive to shortening Grinding time, grinding fully, mixing evenly, can finally prepare lubricating grease with excellent performance.

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Embodiment 1

[0032] Take 65% of composite calcium sulfonate-based grease, 8% of copper powder (700 mesh), 10% of polyester, 15% of polyisobutylene (average molecular weight: 1300), 1.9% of antirust agent T706, and 0.1% of diphenylamine by weight percentage Add it into a small test kettle, mix evenly and heat to a temperature of 60°C, then put the heated mixture into a three-roll mill and grind until the solid additives are fully dispersed to obtain an extreme pressure anti-wear grease composition.

Embodiment 2

[0034] Take 75% of composite calcium sulfonate-based grease, 10% of copper powder (800 mesh), 5% of polyester, 8% of polyisobutylene (average molecular weight of 2400), 1% of antirust agent T706, and 1% of diphenylamine by weight percentage Add it into a small test kettle, mix evenly and heat it to a temperature of 80°C, then put the heated mixture into a three-roll mill to grind until the solid additives are fully dispersed, and then the extreme pressure anti-wear grease composition is obtained.

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Abstract

The present invention provides an extreme pressure anti-wear lubricating grease composition and a preparation method thereof, wherein the raw materials comprise, by weight, 65-80% of composite calcium sulfonate-based lubricating grease, 8-23% of copper powder, 5-20% of polyester, 5-20% of polyisobutylene, 1-3% of a rust inhibitor, and 0.1-1% f an antioxidant. According to the present invention, the performance of the extreme pressure anti-wear lubricating grease composition is improved by adding the copper powder to the composite calcium sulfonate-based lubricating grease, wherein the wear can be effectively reduced and the wear resistance and the extreme pressure property of the composite calcium sulfonate-based lubricating grease can be well improved by adding the copper powder; the used copper powder has characteristics of small particle size, easy and complete dispersion on the lubricating grease, good dispersion stability and precipitation, and can effectively improve the stability of the composite calcium sulfonate-based lubricating grease; and the preparation method has characteristics of simpleness, less steps and low cost, and the product has characteristics of stable quality and easy monitoring.

Description

technical field [0001] The invention relates to the field of grease, in particular to an extreme pressure anti-wear grease composition and a preparation method thereof. Background technique [0002] As a commonly used lubricating medium, grease has better stability and anti-oxidation properties than thin oil lubrication, and is suitable for sports machinery with high motion precision, high load-bearing capacity requirements, high speed and long oil change intervals; especially Grease is more widely used in micro-mechanical bearings that require high running accuracy, load capacity and noise. [0003] Composite calcium sulfonate-based lubricating grease has attracted extensive attention and close attention due to its excellent comprehensive performance, easy-to-obtain raw materials, and low cost; the grease does not contain heavy metals and functional additives harmful to the environment, and is an environmentally friendly Type lubricating grease has been well applied at hom...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M169/04C10M125/04C10N30/06C10N20/02
CPCC10M125/04C10M169/044C10M2201/05C10M2205/026C10M2209/102C10M2215/06C10M2215/223C10M2219/044C10N2030/06C10N2020/02C10N2010/04
Inventor 朱塑军龙在安
Owner 科特龙流体科技(扬州)有限公司
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