Special water-based cutting fluid

The invention discloses a special water-based cutting fluid. The special water-based cutting fluid is prepared from components in parts by mass as follows: 2 parts of phytic acid, 3 parts of ethanol, 7 parts of sodium benzoate, 2 parts of polyethylene glycol, 9 parts of glycerin, 6 parts of triethanolamine, 0.5 parts of isothiazolinone, 1 part of sodium thiosulfate, 0.1 parts of benzotriazole and 70 parts of deionized water. The special water-based cutting fluid can rapidly permeate into the surface of a workpiece, a firm lubricating film layer can be formed on the surface of the workpiece, a better lubricating effect is realized, and the surface smoothness of the workpiece can be improved. 本发明公开种专用水基切削液，按质量份数计包括以下组分：2份的植酸、3份的乙醇、7份的苯甲酸钠、2份的聚乙二醇、9份的甘油、6份的三乙醇胺、0.5份的异噻唑啉酮、1份的硫代硫酸钠、0.1份的苯并三氮唑、70份的去离子水。该专用水基切削液能迅速的渗透到工件表面，可以在工件表面上形成牢固的润滑膜层，达到较好的润滑效果，能提高工件的表面光洁度。