| 摘要 |
PROBLEM TO BE SOLVED: To provide lubricant for press-working a stainless alloy plate or a steel plate which is excellent in lubricity, hardly coagulates abrasion powder on the surface of a press mold and can extend the life of a mold, and to provide a method for press-working the stainless alloy plate or steel plate therewith. SOLUTION: The lubricant comprises a base oil and an additive, and further contains one or more agents selected from an oily agent, a lubricity-improving agent, an aromatic hydrocarbon, and an extreme-pressure agent in the quantity of >50 mass% and≤90 mass% in total. The additive comprises one or more of an amine derivative, a polyhydric alcohol alkylene oxide adduct having a number-average mol.wt. of≥200 and <1,000 and having 3 to 6 hydroxy groups, its hydrocarbyl ether, the hydrocarbyl ether of a polyalkylene glycol having a number-average mol.wt. of≥120 and <1,000, a 2C-10C dihydric alcohol, and an alkyl sulfonate in a content of 0.01 to 2.0 mass%. The dynamic viscosity of the lubricant at 40°C is 100-400 mm<SP>2</SP>/s. COPYRIGHT: (C)2010,JPO&INPIT |
