RTM molding method and RTM molding apparatus using the same and RTM molding resin injection device

摘要

PROBLEM TO BE SOLVED: To provide a method for carrying out RTM using a thermoplastic resin that can open/close a resin passage without using a disposable tube or the like while preventing inconvenient curing of a filled resin to attain desirable smooth resin injecting operation.;SOLUTION: This resin injection device 1 for RTM is mounted to a mold 4 to inject a thermosetting liquid resin 28 into the mold 4 with a reinforced fiber base material 5 arranged, and is formed inside with a resin passage comprising a resin lead-in passage for leading-in the liquid resin 28 supplied from the outside, and a resin injection passage 8 for injecting the led-in liquid resin 28, into the mold 4. The resin injection device 1 has a resin passage opening/closing mechanism 10 switching a resin injecting state in which the resin lead-in passage and the resin injection passage 8 communicate with each other, and a passage closing state in which the communication is intercepted, and a temperature regulating means for regulating so that the difference (T2-T1) between the temperature T1 of the resin lead-in passage and the temperature T2 of a mold side tip part of the resin injection passage 8 is at least 30°C. An RTM device and an RTM method using the resin injection device for RTM are also provided.;COPYRIGHT: (C)2009,JPO&INPIT