The invention provides a water-soluble metal working lubricant which is suitably employed particularly in press-working of aluminum material and which is excellent in both working properties and degreasing properties. The water-soluble metal working lubricant includes 85 mass % or less of water (A); 5 to 75 mass % of a metal salt of an organic carboxylic acid (B) wherein carboxylic acid residue has 8 or more carbon atoms in-total and the acid/alkali ratio by mole is 1:0.5 to 1.1; 1 to 50 mass % of at least one metal salt (C) selected from among an organic phosphate ester metal salt, an organic phosphite ester metal salt, an organic phosphonate metal salt, and an organic borate ester metal salt, each having an alkyl group having 8 or more carbon atoms in total; and 10 to 80 mass % of a non-ionic surfactant (D).
本发明提供了一种
水溶性
金属加工润滑剂,特别适用于铝材料的冲压加工,其加工性能和脱脂性能均非常出色。该
水溶性
金属加工润滑剂包括 85 质量%或更少的
水 (A);5 至 75 质量%的有机
羧酸金属盐 (B),其中
羧酸残基的碳原子总数为 8 个或更多,酸碱摩尔比为 1:0.5 至 1.1;1 至 50 质量百分比的至少一种
金属盐 (C),选自有机
磷酸酯
金属盐、有机
亚磷酸酯
金属盐、有机
膦酸酯
金属盐和有机
硼酸酯金属盐,每种
金属盐都具有一个总共有 8 个或更多碳原子的烷基;以及 10 至 80 质量百分比的非离子表面活性剂 (D)。