| abstract |
Lubricant for cold forging of metal, which is less likely to generate industrial waste compared to conventional (chemical conversion film) + (soap treatment), has a simple treatment process, and has a new lubricating performance. Provide a process type lubricant. It contains (A) a water-soluble inorganic salt, (B) a wax, and (C) a metal salt of a fatty acid, which are dissolved or dispersed in water and have a solid content weight ratio (B) / (A) of 0. A high efficiency cold forging one-step type lubricant having a ratio of (C) / (A) of 0.1 to 0.3, and 60 to 0.70. The water-soluble inorganic salt can be selected from sulfate, silicate, borate, molybdate and tungstate. As the wax, a synthetic wax dispersed in water and having a melting point of 70 to 150 ° C can be used. As the metal salt of the fatty acid, those obtained by reacting a saturated fatty acid of C12 to C26 with any one of zinc, calcium, barium, aluminum, magnesium, and lithium can be used. |