| 摘要 |
PURPOSE:To improve abrasion resistance performance without deteriorating low frictional performance by sticking ethylene tetrafluoride-propylene hexafluoride copolymerization resin powder around a surface resin layer made of ethylene tetrafluoride resin powder, impregnating a part thereof in porous metal sintered layer, and attaching residual part on the sintered layer. CONSTITUTION:In a porous layer 2, metal powder of Cu, Al, and the like is attached on the surface of a back plate 1, multi hole spaces are formed between the metal powder, and a surface resin layer 3 is formed on the porous layer 2. The back surface of the surface resin layer 3 is impregnated in the hole space of the porous layer 2, and porous layer 2 is covered with the surface resin layer 3 so as to constitute a bearing surface. Ethylene tetrafluoride- propylene hexafluoride copolymerization resin (PEF) powder 5 is stuck around the surface resin layer 3 made of ethylene tetrafluoride resin (PTFE) powder 4. In the surface resin layer 3, the PTFE powder exists as the binder of matrix, and the PEF powder 5 exists as a binder of fellow PEF powder 5, and there are low frictional performance and also abrasion resistance performance. |
