| 摘要 |
PROBLEM TO BE SOLVED: To provide an injection molding apparatus capable of relaxing directivity of a fiber in a fiber reinforced resin flowing into a cavity. SOLUTION: The injection molding apparatus injection-fills a molding material 2 obtained by mixing a fibrous reinforcing material with a base material made of a resin into the cavity 33' to mold. In the injection molding apparatus 3' used for an injection molding method to obtain a molded body 1, the cavity 33' includes a gate part 330 which is an inflow port to feed the molding material 2 into the cavity 33' and a plurality of overflow parts 332'. One of the overflow parts 332' is provided in a first direction against the gate part 330 and also another at least one of the overflow parts 332' is provided in a second direction crossing the first direction. Therefore, directivity of the fibrous reinforcing material is relaxed and increase in characteristic anisotropy in the formed body 1 can be suppressed. COPYRIGHT: (C)2004,JPO |
