Multifunctional extreme-pressure antiwear cutting fluid and preparation method thereof

A multifunctional extreme-pressure antiwear cutting fluid is prepared form the following raw materials: by weight, 1-2 parts of diethanolamine, 3-4 parts of boric acid ester, 2-3 parts of borax, 4-5 parts of sebacic acid, 1-2 parts of petroleum sodium sulfonate, 2-3 parts of molybdenum disulfide, 2-3 parts of methylparaben, 1-2 parts of sodium metaborate, 0.8-1.2 parts of fatty alcohol polyoxyethylene ether, 0.05-0.1 part of lanthanum acetate, 12-14 parts of rapeseed oil, 6-8 parts of an additive and 200 parts of water; the multifunctional extreme-pressure antiwear cutting fluid, by use of the boric acid ester, the molybdenum disulfide, the lanthanum acetate and the rapeseed oil, has good extreme pressure property, wear resistance and lubricity, the service life of the cutting fluid and a machine tool is prolonged, and the multifunctional extreme-pressure antiwear cutting fluid has good rust resistance to ferrous metals and copper and other non-ferrous metals, is wide in use, is a multifunctional cutting fluid, and at the same time has strong inhibitory effects on bacteria and mould.