RTM molding method and device

RTM molding method and device

  • CN 1,921,996 B
  • Filed: 02/16/2005
  • Issued: 01/25/2012
  • Est. Priority Date: 02/17/2004
  • Status: Active Grant
First Claim
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1. RTM forming method;

  • Said RTM forming method is for to be configured to reinforcing fiber base in the die cavity of the shaping mould that is made up of a plurality of moulds;

    Behind the mold closing, at least from behind the mold closing till begin pressurization and inject aqueous resin, in official hour, carry out vacuum draw from the resin discharge line;

    The RTM forming method that pressurization is injected aqueous resin, it is heating and curing;

    It is characterized by, between each mould that constitutes said shaping mould, set intermediate member with the resin stream that on thickness direction, connects;

    The periphery of said shaping mould and said intermediate member is each other through the encapsulant sealing simultaneously;

    On the surface direction of said reinforcing fiber base, suppose cut zone, and formation can almost simultaneously from many places be injected said reinforcing fiber base with aqueous resin through said intermediate member respectively to the resin importing path of aqueous resin to this cut zone inside that each cut zone importing of supposition is injected under the form that keeps said reinforcing fiber;

    Said each cut zone can be expanded in the whole surface in the zone for the aqueous resin that injects and can be along the cut zone of impregnation in fact equably on the base material thickness directionOn said intermediate member, be provided with the resin stream with groove and through hole;

    Said resin stream is arranged on the one side of said intermediate member and injects member with resin and is communicated with groove, said through hole is the through hole that reinforcing fiber base disposes the face of side for the reverse side that is communicated with the end of this groove, run through said.

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