| 摘要 |
PROBLEM TO BE SOLVED: To provide a mandrel for molding a bent hose which enables low-cost and high-precision manufacture of high-quality resin/rubber-composite bent hoses which have a complicated three-dimensional shape and are free of flaws in their inside surfaces. SOLUTION: The mandrel 1 is used to mold a resin/rubber-composite bent hose which is coated with two or more rubber layers and a reinforcing layer(s) arranged between the rubber layers, formed on the outer surface of a resin tube, and consists of a flexible tube 2 and a rubber layer 3 coated on the outer periphery of the flexible tube 2. COPYRIGHT: (C)2008,JPO&INPIT |
