| 摘要 |
<p>A cutting or grinding oil composition comprising (A) a base oil and (B) at least one compound selected from the group consisting of dibasic acids having 2 to 6 carbon atoms, tribasic acids having 3 to 6 carbon atoms, and ester derivatives of these acids; and a cutting or grinding oil composition comprising component (A) described above, component (B) described above, (C) a compound containing sulfur, and/or (D) at least one compound selected from the group consisting of perbasic alkali metal sulfonates and perbasic alkaline earth metal sulfonates are disclosed. By using the oil composition, increase in working efficiency, such as suppressed wear of working tools and superior precision of a finished surface, can be achieved.</p> |
