| 摘要 |
PURPOSE:To manufacture a large number of profile pipes for filament winding at a time, by a method wherein end profile mold pipes are arranged on both ends of same-diameter pipes each and confronting middle profile mold pipes are connected by small-diameter pipe with each other for sticking and fixed detachably to a shaft, in a mandrel. CONSTITUTION:A mandrel 1 is constituted of a shaft 2, a plurality of same-diameter pipes 3 to be stuck detachably to the shaft 2 and a plurality of end and middle profile pipes 4 and the confronting middle profile pipes 4, 4 are connected by a small-diameter pipe 5 with each other for sticking and fixed to a shaft 2. Molding is performed under this state by winding an epoxy resin layer containing a carbon fiber round the outside of the same-diameter pipes 3 each, end and middle parts profile mold pipes 4... and small-diameter pipe 5 and the resin layer is cut off at a part of the small-diameter pipe 5. Then the end odd-shaped mold pipes 4, 4 are demolded by removing them by turning them outside. A demolding plate 7 is inserted into the part of the small-diameter pipe 5 between the confronting middle odd- shaped mold pipes 4, 4 and fixed. Then the middle odd-shaped mold pipes 4, 4 are demolded by removing them by turning them one side. When they are demolded by removing them by turning them other side and demolded the same-diameter pipes 3... by extracting them further, a large number of profile pipes H are obtained. |
