| 摘要 |
PURPOSE:To provide a lubricant composition for high-temperature use, containing graphite powder, a polyhydric alcohol, and a water-soluble or water- dispersible synthetic polymer at specific ratios, and suitable for the hot working such as the rolling, forging and drawing of steel, extrusion of aluminum and copper, drawing of tungsten and molybdenum, etc. CONSTITUTION:The objective lubricant composition is composed of (A) 100 pts.(wt.) of graphite powder having a purity of usually >=75% and an average particle diameter of preferably 0.3-30mu, (B) 2-40pts. of a polyhydric alcohol (preferably polypropylene glycol, polyethylene oxide, etc.) and (C) 5-40pts. of a water-soluble or water-dispersible synthetic polymer [preferably acrylic, vinyl acetate, ethylene, or maleic anhydride-type (co)polymer]. USE:Suitable especially for the hot rolling of seamless steel pipe. |
