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Water-based cutting lubricating fluid with ultralow friction coefficient

A technology of ultra-low friction and lubricating fluid, applied in lubricating compositions, petroleum industry, etc., can solve problems such as complex preparation process, environmental pollution, and many components, and achieve simple preparation method, ensure production safety, and smooth contact surface Effect

Active Publication Date: 2021-06-29
LANZHOU INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Oil-based cutting fluid is mainly composed of mineral oil, oily agent and additives. It is widely used in industrial fields because of its excellent lubricating performance and anti-rust performance. However, in some special fields where fire, explosion hazard and rapid heat dissipation are required, Oil-based cutting fluids have limited their application due to their shortcomings such as low flash point, flammability, and low thermal conductivity.
In addition, with the increasing shortage of oil resources and the prominent environmental pollution problems, the cost of oil-based cutting fluids has increased
The common water-based cutting lubricants are mixed with alcohol amines or alcohol esters and deionized water, and various additives are added, such as defoamers, rust inhibitors, dispersants, stabilizers, extreme pressure agents, polishing agents, etc. And there are many shortcomings such as high friction coefficient, poor lubrication performance, complicated preparation process, many components, high production cost, and serious environmental pollution.

Method used

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  • Water-based cutting lubricating fluid with ultralow friction coefficient
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  • Water-based cutting lubricating fluid with ultralow friction coefficient

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Example 1 An ultra-low friction coefficient water-based cutting lubricating fluid, which is prepared by mixing the following components uniformly in parts by weight: 50 parts of ethylene glycol, 50 parts of deionized water, dibutyl phosphate 1.5 parts of ester·dodecyldimethylamine ionic liquid, 0.0065 parts of HO-BNNs.

[0037] The tribological properties of the prepared cutting lubricants were tested by a four-ball friction tester (MS-10 A). The steel balls used in the test are φ = 12.7 mm GCr15 bearing steel balls. The test conditions are the coefficient of friction (COF) when the load is 196 N, the speed is 1200 r / min, and the long grinding is 30 minutes at room temperature. Use XDS-0745D optical microscope and MicroXAM 3D non-contact surface tester to test the wear spot diameter on the surface of the steel ball.

[0038] The result is as figure 2 As shown, the lubrication system enters into a super-slip state (friction coefficient less than 0.01) after a runni...

Embodiment 2

[0039]Example 2 A water-based cutting lubricating fluid with an ultra-low coefficient of friction, which is the same as that in Example 1.

[0040] The tribological properties of the prepared cutting lubricants were tested by a four-ball friction tester (MS-10 A). The steel balls used in the test are φ = 12.7 mm GCr15 bearing steel balls. The test conditions are the coefficient of friction (COF) when the load is 196 N, the speed is 1450 r / min, and the long grinding is 30 minutes at room temperature. Use XDS-0745D optical microscope and MicroXAM 3D non-contact surface tester to test the wear spot diameter on the surface of the steel ball.

[0041] The result is as image 3 As shown, compared with Example 1, when the speed is increased to 1450 r / min, the lubrication system enters the super-slip state (friction coefficient is less than 0.01) after a running-in period of about 500 s, and the friction coefficient is more stable, and The ultra-slip state was maintained until th...

Embodiment 3

[0042] Example 3 An ultra-low friction coefficient water-based cutting lubricating fluid, which is prepared by mixing the following components uniformly in parts by weight: 50 parts of 1,3-propanediol, 50 parts of deionized water, phosphoric acid 1.5 parts of dibutyl ester·dodecyldimethylamine ionic liquid, 0.0065 parts of HO-BNNs.

[0043] The tribological performance evaluation test conditions of the cutting lubricating fluid are the same as in Example 1.

[0044] The result is as Figure 4 As shown, compared with Example 1, replacing ethylene glycol with 1,3-propanediol, the lubrication system enters a super-slip state (friction coefficient is less than 0.01) after a running-in period of about 100 s, and remains super-slip State Until the end of the experiment, the wear spot diameter (WSD) was 0.6481mm. It shows that the lubricating performance of this system is good. In addition, the diameter of the wear scar becomes smaller and the surface is smooth and flat. It is suit...

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Abstract

The invention relates to a water-based cutting lubricating fluid with an ultralow friction coefficient, which is prepared by uniformly mixing the following components in parts by weight: 40-60 parts of polyhydric alcohol, 40-60 parts of deionized water, 0.5-3 part of proton type ionic liquid and 0.001-0.01 part of nano two-dimensional material. The lubricating fluid is non-toxic and environment-friendly, has excellent lubricating performance, shows an ultralow friction coefficient, and is simple in preparation method.

Description

technical field [0001] The invention relates to the fields of metal cutting and lubrication, in particular to an ultra-low friction coefficient water-based cutting lubricating fluid. Background technique [0002] Cutting fluid (coolant) is an industrial liquid commonly used in metal and its alloys in the process of cutting, cutting, grinding, etc., to cool and lubricate tools and workpieces, mainly for lubrication, rust prevention, Cleaning and cooling, thereby reducing tool wear, ensuring workpiece machining accuracy, saving energy and materials, and improving production efficiency. [0003] Cutting fluid can be divided into oil-based cutting fluid and water-based cutting lubricant according to the type of medium. Oil-based cutting fluid is mainly composed of mineral oil, oily agent and additives. It is widely used in industrial fields because of its excellent lubricating performance and anti-rust performance. However, in some special fields where fire, explosion hazard an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M173/02C10N30/06C10N40/22
CPCC10M173/02C10M2207/022C10M2223/04C10M2215/04C10M2201/061
Inventor 冯大鹏郑治文乔旦
Owner LANZHOU INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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