| 摘要 |
PROBLEM TO BE SOLVED: To provide a metal working fluid which can keep sufficient lubricity even for a metallic material having a hydrophilic surface without inhibiting surface hydrophilicity and is excellent in performance of working a metallic material. SOLUTION: The water-soluble metal working fluid is prepared by blending the following (A), (B), (C), and (D) components: (A) carboxylic acid having 8 or more and 18 or less carbon atoms; (B) trialkanolamine; (C) a water-soluble polymer with an average mass molecular weight of 200 or more; and (D) water. COPYRIGHT: (C)2010,JPO&INPIT |
