High-biological-stability semisynthetic metal cutting fluid and preparation method thereof

Abstract

The invention relates to a cutting fluid for metal working and a preparation method thereof, particularly a high-biological-stability semisynthetic metal cutting fluid. The cutting fluid is prepared from the following raw materials in percentage by weight: 1-10% of monoethanolamine, 2-10% of boric acid, 4-10% of dodecanedioic acid, 1-10% of base oil, 4-10% of oleic acid, 2-10% of organic acid ester, 0.2-2% of bacterial inhibitor, 1-5% of rust inhibitor, 5-10% of nonionic surfactant, 0.2-3% of fungus inhibitor, 0.01-0.5% of defoamer and the balance of water. The preparation method comprises the following steps: proportioning the material components according to the percentage by weight, adding the pure water, monoethanolamine, dodecanedioic acid and boric acid into a reaction kettle, continuously stirring for 30 minutes, adding the base oil, oleic acid, organic acid ester, bacterial inhibitor, rust inhibitor, nonionic surfactant and fungus inhibitor, continuously stirring for 30 minutes, finally adding the defoamer, and stirring until the fluid is uniform and transparent. Compared with the prior art, the cutting fluid provided by the invention has the advantages of favorable biological stability, excellent anti-rust property and excellent lubricating property.

Description

[technical field] [0001] The invention relates to a cutting fluid for metal processing and a preparation method thereof, in particular to a highly biologically stable semi-synthetic metal cutting fluid and a preparation method thereof. [Background technique] [0002] Semi-synthetic metal cutting fluids contain a certain amount of mineral oil. During use, due to water, worker contact and contamination from on-site debris, corruption often occurs, resulting in the growth of a large number of bacteria or fungi in the cutting fluid, resulting in stratification of the working fluid. , odor, etc., which not only affect the normal use of cutting fluid, but also pollute the site environment. [Content of the invention] [0003] The purpose of the present invention is to solve the above-mentioned deficiencies and provide a semi-synthetic metal cutting fluid with high biological stability and its preparation method, which has good biological stability, making it difficult to decay du...

AI Technical Summary

Problems solved by technology

[0002] Semi-synthetic metal cutting fluids contain a certain amount of mineral oil. During use, due to water, worker contact and contamination from on-site debris, corruption often occurs, resulting in the growth of a large number of bacteria or fungi in the cutting fluid, resulting in stratification of the working fluid. , odor, etc., which not only affect the normal use of cutting fluid, but also pollute the site environment

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