Antiwear low corrosion nanometer hydraulic medium and preparation method thereof

A hydraulic medium, low-corrosion technology, applied in lubricating compositions and other directions, can solve the problems of increased wear of hydraulic transmission friction pairs, reduced system volumetric efficiency, corrosion of hydraulic working elements, etc., to achieve adjustable viscosity, good rheological properties, corrosion resistance the effect of reducing the degree of

Inactive Publication Date: 2015-08-19
KUNMING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the hydraulic transmission medium is pure water or water-based hydraulic fluid, the corrosion of the hydraulic working components is relatively serious, the film forming ability is weak, and the lubrication performance is poor, which may easily cause the wear of the friction pair in the hydraulic transmission to increase, and then cause the volume of the system to increase. Reduced efficiency or seal failure

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Example 1: The composition and mass percentage of the anti-wear and low-corrosion nano-hydraulic medium are: RO reverse osmosis membrane treated water 96%, nanoparticles (boron carbide with an average particle size of 70nm) 1%, dispersion stabilizer carboxymethyl cellulose Sodium 0.5%, anti-sedimentation stabilizer montmorillonite 0.5%, rust inhibitor 1,2-diethoxysilicate ethane 1.95%, viscosity regulator sodium polyacrylate 0.05%.

[0021] The preparation method of the above-mentioned anti-wear and low-corrosion nano hydraulic medium is as follows:

[0022] (1) Add sodium carboxymethyl cellulose to the water treated by RO reverse osmosis membrane and stir mechanically at 25°C for 20 minutes at a stirring speed of 650 r / min. After fully dissolving, a solution containing a dispersion stabilizer is prepared;

[0023] (2) Add montmorillonite and 1,2-diethoxysilicate ethane into the solution in step (1), and stir mechanically at 25°C for 20 minutes at a stirring speed o...

Embodiment 2

[0027] Example 2: The composition and mass percentage of the anti-wear and low-corrosion nano hydraulic medium are: 94% of RO reverse osmosis membrane treated water, 3% of nanoparticles (boron carbide with an average particle size of 60nm), dispersion stabilizer polyethylene glycol 6000 0.5%, anti-sedimentation stabilizer montmorillonite 0.5%, rust inhibitor (1,2-diethoxysilicate ethane and triethanolamine mixed at a mass ratio of 1:1) 1.95%, viscosity modifier sodium polyacrylate 0.05%.

[0028] The preparation method of the above-mentioned anti-wear and low-corrosion nano hydraulic medium is as follows:

[0029] (1) Add polyethylene glycol 6000 to the water treated by the RO reverse osmosis membrane and stir mechanically at 20°C for 40 minutes at a stirring speed of 600r / min. After fully dissolving, a solution containing a dispersion stabilizer is prepared;

[0030] (2) Add montmorillonite and antirust agent to the solution in step (1), and mechanically stir for 40 minutes...

Embodiment 3

[0034] Example 3: The composition and mass percentage of the anti-wear and low-corrosion nano-hydraulic medium are: 92% deionized soft water, 3% nanoparticles (boron carbide with an average particle size of 80nm), dispersion stabilizer hexadecyl trimethyl bromide Ammonium chloride 1.5%, anti-sedimentation stabilizer fatty alcohol sodium sulfate 1%, rust inhibitor borate triethanolamine 2.35%, viscosity modifier sodium polyacrylate 0.15%.

[0035] The preparation method of the above-mentioned anti-wear and low-corrosion nano hydraulic medium is as follows:

[0036] (1) Add cetyltrimethylammonium bromide to deionized soft water and mechanically stir at 40°C for 10 minutes at a stirring speed of 700r / min. After fully dissolving, a solution containing a dispersion stabilizer is prepared;

[0037] (2) Add fatty alcohol sodium sulfate and borate triethanolamine into the solution in step (1), and mechanically stir at 40°C for 10 minutes at a stirring speed of 700 r / min;

[0038] (3...

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PUM

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Abstract

The invention discloses an antiwear low corrosion nanometer hydraulic medium and a preparation method thereof. The nanometer hydraulic medium is composed of the following materials by mass: 92%-97% of water, 1%-3% of nanoparticles, 0.4%-1.5% of a dispersion stabilizer, 0,25%-1% of an antisettling stabilizer, 1.3%-2.35% of an antirust agent, and 0.05%-0.15% of a viscosity regulator. The nanometer hydraulic medium prepared by the method provided by the invention has good dispersion stability, good rheological properties, proper and adjustable viscosity, and has good antirust, friction reduction and antiwear properties. When the medium is applied in a hydraulic transmission system, the hydraulic system operates well, and has low leakage and reduced corrosion degree on hydraulic elements, and the wear scar diameter decreases.

Description

technical field [0001] The invention relates to an anti-wear and low-corrosion nano hydraulic medium and a preparation method thereof, belonging to the technical field of hydraulic transmission. Background technique [0002] The working medium of hydraulic transmission is an indispensable part of the hydraulic system. Its main function is to complete the conversion and transmission of energy. dirt etc. The early working medium of the hydraulic system was mainly water, and now it is mainly mineral petroleum-based hydraulic oil, non-petroleum-based emulsion or synthetic fluid. Mineral oil petroleum-based hydraulic oil not only consumes a lot of petroleum resources, but also is easy to leak and burn, causing environmental pollution and personal safety. The hydraulic transmission medium with high water content has the characteristics of energy saving, environmental protection, low price and flame retardancy. However, since the hydraulic transmission medium is pure water or w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M173/02C10M177/00
Inventor 吴张永宋铮铮莫子勇王娴杨文勇王娟龙威魏镜弢张晓龙王庭有蔡晓明
Owner KUNMING UNIV OF SCI & TECH
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