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Emulsified cutting fluid composition

A composition and cutting fluid technology, applied in lubricating compositions, petroleum industry, etc., can solve the problems of unstable emulsion, poor on-site sanitation, influence of filtration system, etc., and achieve excellent resistance to hard water stability and excellent anti-rust performance. Effect

Active Publication Date: 2017-12-22
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In hard water conditions, especially long-term water replenishment, a large amount of soap will be formed, and the accumulation of fatty acid soap will have a certain negative impact on the cutting fluid and machining process, which may lead to unstable emulsion and increase the consumption of concentrate
When soap is bonded together with foam, metal powder, miscellaneous oil and other components in the machine tool or in the centralized liquid supply system to form scum or even viscous substances, it will cause more problems. They float or accumulate on the In the working fluid, it will not only affect the filtration system, cause blockage, increase the consumption of filter paper, and poor sanitation on site, but also cause processing accuracy problems if it remains in the cutting tool, measuring tool and transmission system

Method used

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  • Emulsified cutting fluid composition
  • Emulsified cutting fluid composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0061] Add 80g of ashless dispersant PIBSA-1 to a 250ml reactor with stirring, and the molar ratio of the effective component polyisobutylene succinimide to hexamethylene diisocyanate (HDI) in PIBSA-1 is 4:1 Add 0.96g of hexamethylene diisocyanate (HDI), stir, under nitrogen atmosphere, heat up to 90°C, react at this temperature for 3.5h, stop heating, continue to pass nitrogen until the reactant cools to room temperature, and get transparent The polyisobutylene succinimide urea derivative TN-1 has a number average molecular weight of 6,500 and a measured nitrogen content of 2.2%.

Embodiment 2

[0063] Add 80g of ashless dispersant PIBSA-1 to a 250ml reactor with stirring, and add 1.92g of TDI according to the molar ratio of the effective component polyisobutylene succinimide and toluene diisocyanate (TDI) in PIBSA-1 to 2:1 , Stirring, heating to 105°C under a nitrogen atmosphere, reacting at this temperature for 4.5 hours, stopping heating, and continuing to pass nitrogen until the reactants are cooled to room temperature to obtain a transparent polyisobutylene succinimide urea derivative TN- 2. The number average molecular weight is 11500 and the nitrogen content is 2.4%.

Embodiment 3

[0065] Add 80g of ashless dispersant PIBSA-2 to a 250ml reaction kettle with stirring, and add TDI7.68g according to the molar ratio of the effective component polyisobutylene succinimide and toluene diisocyanate (TDI) in PIBSA-2 to 1:2 , Stirring, heating to 70°C in a nitrogen atmosphere, reacting at this temperature for 2.5 hours, stopping heating, and continuing to pass nitrogen until the reactants are cooled to room temperature to obtain a transparent polyisobutylene succinimide urea derivative TN- 3. The number average molecular weight is 35000, and the nitrogen content is 3.6%.

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Abstract

The invention provides an emulsified cutting fluid composition, a method for improving the anti-hard water stability of the emulsified cutting fluid, and a method for improving the antirust performance of the emulsified cutting fluid. The emulsified cutting fluid composition of the present invention includes an isocyanate dispersant, an emulsifier, water and a balance of lubricating base oil, wherein the isocyanate dispersant is a reaction product of polyisobutylene succinimide and isocyanate. The emulsified cutting fluid composition of the present invention has excellent stability against hard water and antirust performance, and can fully meet the requirements for use in areas with relatively high water hardness.

Description

Technical field [0001] The invention relates to an emulsified cutting fluid composition, in particular to an emulsified cutting fluid composition with excellent hard water resistance and rust resistance. Background technique [0002] The performance of cutting fluid directly affects the quality, efficiency and cost of cutting. Water-based metal cutting fluid came out in the 1940s. So far, the application of water-based fluid in the cutting field has made great progress. Among water-based cutting fluids, emulsified cutting fluids have better lubricity and cooling properties, and are currently the most used and ideal metal cutting fluids. In the metal cutting process, the cutting fluid mainly plays the role of lubrication and cooling, while taking into account rust prevention, cleaning and anti-microbial properties. When used on site, emulsified cutting fluid usually needs to be diluted with more than 90% of water. If the water quality of the diluent is harder, it will easily ca...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10M169/04C10N40/22C10N30/12
Inventor 赵敏段庆华黄作鑫辛世豪
Owner CHINA PETROLEUM & CHEM CORP