Mechanical processing lubricating liquid

The invention discloses a mechanical processing lubricating liquid, which is prepared from the following raw materials by weight: 60-120 parts of soybean oil, 6-10 parts of sorbitol, 2-5 parts of benzotriazole, 5-10 parts of ethylene oxide, 1-4 parts of potassium dihydrogen phosphate, 1-3 parts of sodium petroleum sulfonate, 2-4 parts of sodium citrate, 2-5 parts of sodium dodecylbenzenesulfonate,2-5 parts of polyoxyethylene ether, 5-8 parts of trimethylolpropane, 3-8 parts of zinc sulfate, 2-7 parts of calcium carbonate, 3-8 parts of chlorinated paraffin, 4-10 parts of stearic acid, 4-10 parts of tartaric acid, and 5-10 parts of molybdenum disulfide. According to the present invention, the lubricating oil can be well adhered to the cutting edge of the common cutter at a high temperatureof 800 DEG C, and can perform normal cutting on the high hardness material so as to substantially improve the service life of the cutter; and the components of the lubricating oil are the common raw materials, such that the pr