| 摘要 |
PURPOSE:A lubricant for cold working of metal, simply treatable in plug drawing of stainless steel pipe, etc., extremely improving surface roughness of a material to be processed, obtained by blending a specific lubricant mixture with a specific amount of metallic soap or inorganic solid lubricant powder. CONSTITUTION:(A) 100pts.wt. lubricant having 200+ or -50cst viscosity at 50 deg.C, consisting of (i) 40-50pts.wt. mixture of liquid paraffin and a phosphoric ester in a weight ratio of 4:1 and (ii) 50-60pts.wt. mixture of an isobutylene/n-butene copolymer having 1,200-2,400 average molecular weight and animal vegetable fats and oils having 30cst kinematic viscosity at 50 deg.C is blended with (B) 20-30 pts.wt. solid lubricant consisting of metallic soap and/or inorganic solid lubricant powder, to give the aimed lubricant. |
