Emulsified metal cutting fluid and preparation method thereof

Abstract

The invention discloses an emulsified metal cutting fluid and a preparation method thereof. The emulsified metal cutting fluid is prepared from the following raw materials in parts by weight: 15-70 parts of lauric acid, 40-90 parts of epoxyethane, 5-60 parts of polyacrylic acid, 35-60 parts of nekal, 55-80 parts of fatty acid polyoxyethylene ester, 45-90 parts of ethylene glycol, 45-60 parts of citric acid, 50-80 parts of methyl amphetamine, 20-60 parts of sodium tripolyphosphate, 35-65 parts of sodium borate, 15-70 parts of sodium sulfide, 5-20 parts of diffusant and 10-40 parts of leveling agent. The preparation method comprises the following steps: (1) reacting the citric acid, lauric acid, epoxyethane, polyacrylic acid, nekal and fatty acid polyoxyethylene ester at 80-100 DEG C for 1-2 hours, and cooling to 20-30 DEG C; and (2) adding the rest of components into a closed reaction kettle, uniformly mixing, adding the mixture of the step (1), and stirring uniformly. The emulsified metal cutting fluid has the advantages of high antimicrobial capacity and long shelf life.

Description

technical field [0001] The invention belongs to the field of machining materials, in particular to an emulsified metal cutting fluid and a preparation method thereof. [0002] Background technique [0003] Cutting fluid (coolant) is an industrial liquid used in metal cutting and grinding to cool and lubricate cutting tools and workpieces. The history of human use of cutting fluid can be traced back to ancient times. Watering was known to improve efficiency and quality when grinding stone, copper, and iron tools. Olive oil was used in turning piston pump castings in ancient Rome, and tallow and water solvents were used in the 16th century to polish metal armor. From 1775 the British J. Wilkinson successfully developed the boring machine for processing the cylinder of the Watt steam engine, accompanied by the application of water and oil in metal cutting. After a long development in 1860, various machine tools such as turning, milling, planing, grinding, gear processing a...

AI Technical Summary

Problems solved by technology

In fact, except for particularly difficult-to-machine materials, emulsions can be used for almost all light and medium-load cutting processes and most heavy-duty processes. Emulsions can also be used for complex grinding such as thread grinding and groove cutting. The disadvantage of the emulsion is that it is easy to reproduce bacteria and molds, and the active ingredients in the emulsion will be chemically decomposed to cause odor and deterioration.