| 摘要 |
PURPOSE: To make it easy to mold a composite material by inserting a high- temperature thermoplastic tubular film into prepreg placed on the inside face of a mold for heating and expanding, and bonding the prepreg to the inner face through its internal pressure. CONSTITUTION: Prepreg 2 is arranged on a part constituting the cylindrical inner perimeter of an open two-split mold 1. After the mold is closed, a high- temperature thermoplastic tubular film 3, with its one end sealed 4, is inserted into the mold. The opening end of the tubular film 3 is connected to a gas, such as air or the like, encapsulating opening 5. Next, while the mold is heated for softening the resin impregnated in the prepreg 2, gas such as air or the like is blown and press-fitted into the tubular film 3 through an appropriate method for heating expanding. Through the internal pressure of the tubular film 3, the prepreg 2 is bonded to the inner perimeter of the mold 1. |
