Extreme pressure cutting fuild microemulsion free of chlorine and its preparation method and uses

A cutting fluid and extreme pressure technology, applied in the petroleum industry, lubricating compositions, etc., can solve the problems of strong corrosion of machine tool paint, reduce the service life of cutting fluid, increase product cost, etc., improve the corrosion performance of machine tool paint and reduce waste The effect of reducing liquid discharge and prolonging the service life

Inactive Publication Date: 2006-02-08
GUANGZHOU MECHANICAL ENG RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the microemulsion cutting fluid also has the following disadvantages during use: (1) The oil discharge performance of the microemulsion cutting fluid is poor. , it becomes an emulsion, which makes the microemulsion cutting fluid lose its superiority and greatly reduces the service life of the cutting fluid; The agent is expensive, the storage period is short, and it fails quickly, and it needs to be added continuously during use, which increases the product cost; (3) It is highly corrosive to the paint of the machine tool, and the paint of the machine tool often falls off during use
In addition, most products currently on the market still contain sodium nitrite, and extreme pressure microemulsion cutting fluids mostly use chlorine-containing extreme pressure agents, which are not conducive to environmental protection

Method used

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  • Extreme pressure cutting fuild microemulsion free of chlorine and its preparation method and uses

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] press figure 1 The process flow chart shown to prepare the chlorine-free extreme pressure microemulsion cutting fluid of the present invention includes the following steps:

[0041] 1) Synthesis of boron amine rust inhibitor

[0042] Add 4g of boric acid, 8g of mixed alcohol amine (diethanolamine: triethanolamine=90:10 in parts by weight), 35g of tap water (the hardness of tap water is not higher than 250ppm) into the reaction tank, stir at 10°C for 60 minutes, the solution is transparent , No sediment.

[0043] 2) In the reaction tank, add the remaining components according to the formula ratio. The sulfonate rust inhibitor is 50% petroleum sodium sulfonate 10g, the anionic surfactant sulfonated rapeseed oil soap 8g, and the polyol ester is polyol lauric acid. 4g of ester, 4g of sulfurized fatty acid ester containing 15% sulfur, and oil separation aid is fatty alcohol polyoxyethylene ether MOA 3 (The HLB value is not more than 6) 2g, mineral oil has a kinematic viscosity (...

Embodiment 2

[0045] press figure 1 The process flow chart shown to prepare the chlorine-free extreme pressure microemulsion cutting fluid of the present invention includes the following steps:

[0046] 1) Synthesis of boron amine rust inhibitor

[0047] Add 5 g of boric acid, 10 g of mixed alcohol amine (diethanolamine:triethanolamine=80:20 in parts by weight), and 30 g of distilled water into the reaction tank, and stir at 28°C for 35 minutes. The solution is transparent without precipitation.

[0048] 2) In the reaction tank, add the remaining components according to the formula ratio. The sulfonate rust inhibitor is 40% petroleum sodium sulfonate 8g, the anionic surfactant sulfonated castor oil soap 10g, and the polyol ester is polyol oleic acid. 6g of ester, 6g of sulfurized fatty acid grease containing 10% sulfur, and oil separation aid is fatty alcohol polyoxyethylene ether MOA 3 (The HLB value is not more than 6) 3g, mineral oil has a kinematic viscosity (40℃) of 32mm 221.9 g of naphthe...

Embodiment 3

[0050] press figure 1 The process flow chart shown to prepare the chlorine-free extreme pressure microemulsion cutting fluid of the present invention includes the following steps:

[0051] 1) Synthesis of boron amine rust inhibitor

[0052] Add 3 g of boric acid, 7 g of mixed alcohol amine (diethanolamine:triethanolamine=70:30 in parts by weight), and 32 g of deionized water into the reaction tank, and stir at 22° C. for 45 minutes. The solution is transparent and has no precipitate.

[0053] 2) In the reaction tank, add the remaining components according to the formula ratio. The sulfonate rust inhibitor is 60% petroleum sodium sulfonate 9g, the anionic surfactant sulfonated rapeseed oil soap 9g, and the polyol ester is polyol oleic acid. 5g of ester, 5g of sulfurized fatty acid ester containing 17% sulfur, and oil separation aid is fatty alcohol polyoxyethylene ether MOA 3 (The HLB value is not more than 6) 1g, mineral oil has a kinematic viscosity (40℃) of 20mm 2 28.9 g of naph...

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Abstract

The invention provides a fluoro-free extreme-pressure microemulsion cutting liquid, whose constituents by weight percentage include water 20-40, mixed alkylolamide 6-12, boracic acid 2-6, sulfonates rust-preventing agent 8-12, auxiliary agent 1-5%, anionic surface active agent 8-12, polybasic alcohol 2-6, sulfurized grease 4-10, mineral oil 15-30, benzotrizaole 0.1-0.3. The invention also provides a process for preparing the liquid.

Description

Technical field [0001] The invention relates to metal processing lubrication technology, in particular to an environmentally friendly chlorine-free extreme pressure microemulsion cutting fluid, and a preparation method and application thereof. Background technique [0002] Microemulsion cutting fluid is a kind of water-based cutting fluid. Its performance is between water-based synthetic cutting fluid and emulsion. Its basic composition is mineral oil, water, surfactant, lubricant, rust inhibitor, etc. The emulsified particles of the microemulsion cutting fluid in water are smaller than the usual emulsion, and the aqueous solution is transparent or translucent. Microemulsion cutting fluid combines the advantages of good emulsion lubrication performance, good stability of synthetic cutting fluid, and good cooling effect. It is a water-based cutting fluid with superior performance and a wide range of applications. However, the microemulsion cutting fluid also ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M173/00C10N40/22
Inventor 林心勇刘长期
Owner GUANGZHOU MECHANICAL ENG RES INST
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