Water-resistant calcium sulfonate-based lubricating grease and preparation method thereof

A calcium sulfonate-based lubricating grease and calcium sulfonate technology, which is applied in the field of lubricating grease, can solve the problems of easy lack of oil and can not solve the problem of calcium sulfonate-based lubricating grease becoming dry when it encounters water, so as to improve thermal stability , Improve high temperature anti-oxidation effect, excellent water resistance effect

Active Publication Date: 2020-09-01
辽宁海华科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The invention improves the complex calcium sulfonate-based grease by improving the type and content of the conversion agent and compounding agent required in the preparation process and its preparation process, thereby increasing the mechanical stability of the water-resistant calcium sulfonate-based grease, but Similarly, it cannot solve the problem of calcium sulfonate-based lubricating grease becoming dry when it encounters water, and it is easy to run out of oil

Method used

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  • Water-resistant calcium sulfonate-based lubricating grease and preparation method thereof
  • Water-resistant calcium sulfonate-based lubricating grease and preparation method thereof
  • Water-resistant calcium sulfonate-based lubricating grease and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～8

[0089] The specific components and component contents (in terms of mass percentage) of the water-resistant calcium sulfonate-based grease provided in Examples 1 to 8 are shown in Table 1 (wherein "-" represents that this embodiment does not add this group Minute):

[0090] Table 1

[0091]

[0092]

[0093] The preparation method of the anti-water type calcium sulfonate base lubricating grease that embodiment 1~8 provides comprises the following steps:

[0094] (1) Material mixing: mix ultra-high alkalinity calcium sulfonate and part of the base oil at 20-50°C for 5-15 minutes to obtain a mixed material;

[0095] (2) Conversion reaction: mix the mixed material obtained in step (1) with the conversion agent, heat to 80-90° C., and react with triple stirring for 120-150 minutes to obtain the converted mixed material;

[0096] (3) Composite reaction: mix the conversion mixture obtained in step (2) with alkali, organic acid, and boric acid, and heat to 90-100° C. for 30-60...

Embodiment 9

[0105] This example provides a water-resistant calcium sulfonate-based grease, the only difference from Example 1 is that the base oil 1 has a kinematic viscosity of 80mm at 40°C 2 / s, other component content and preparation method are with embodiment 1.

Embodiment 10

[0107] This example provides a water-resistant calcium sulfonate-based lubricating grease, the only difference from Example 1 is that the kinematic viscosity of the base oil 1 at 40°C is 500mm 2 / s, other component content and preparation method are with embodiment 1.

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Abstract

The invention provides water-resistant calcium sulfonate-based lubricating grease and a preparation method thereof. The water-resistant calcium sulfonate-based lubricating grease is prepared from thefollowing preparation raw materials in percentage by mass: 32.5-48.85% of base oil, 36-40% of calcium sulfonate with an ultrahigh base number, 2.0-3.0% of a conversion agent, 0.55-1.5% of alkali, 2.0-4.0% of organic acid, 0.5-1.5% of boric acid, 2.0-3.0% of an antioxidant, 0.1-0.5% of a passivator, 0.5-3.0% of an extreme pressure agent, 0.5-2.0% of an anti-wear agent, 3.0-4.0% of an antirust agentand 4.0-5.0% of a tackifier. The water-resistant calcium sulfonate-based lubricating grease provided by the invention can effectively improve the conversion and utilization rate of an ultrahigh-base-number calcium sulfonate thickening agent; the problem that the thickness becomes dry after the lubricating grease encounters water is solved, oil shortage is avoided, and effective lubrication is guaranteed; and meanwhile, the problem of loss of lubricating grease under direct injection of high-pressure water is solved.

Description

technical field [0001] The invention belongs to the technical field of lubricating grease, and in particular relates to a water-resistant calcium sulfonate-based lubricating grease and a preparation method thereof. Background technique [0002] Calcium sulfonate-based lubricating grease is a high-performance lubricating grease widely used at present. It has good high temperature performance, extreme pressure performance, shear stability, low temperature pumpability, and rust resistance. Under the conditions of high temperature, dust, water and heavy load, it has a wide range of application prospects. But in some relatively harsh environments, there are still deficiencies. For example, calcium sulfonate-based grease contains hydrophilic components. Under the condition of a large amount of water, the consistency of the grease becomes dry after being exposed to water, which will cause oil-starved lubrication problems. [0003] CN109401819A discloses a low-temperature water-re...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M169/04C10N30/06C10N50/10C10N20/02C10N30/02C10N30/08C10N30/10C10N30/12C10N30/14
CPCC10M169/044C10M2201/087C10M2201/062C10M2203/1025C10M2207/021C10M2207/122C10M2207/127C10M2207/128C10M2207/16C10M2205/022C10M2209/08C10M2215/223C10M2219/022C10M2219/082C10M2219/106C10M2219/044C10M2219/046C10M2223/045C10M2223/047C10M2205/024
Inventor 王明伟刘鹏王佳
Owner 辽宁海华科技股份有限公司
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