Method for producing preform and method for producing fiber-reinforced plastic molding

Patent metadata

Field	Value
Publication number	US-10099460-B2
Application number	US-201214351761-A
Country	US
Kind code	B2
Filing date	Sep 6, 2012
Priority date	Dec 6, 2011
Publication date	Oct 16, 2018
Grant date	Oct 16, 2018

Abstract

A method for producing a preform for manufacture of a fiber-reinforced plastic molding. The method includes: fixing a resin-equipped film rolled out from a roll state including a release film and a fixing resin and containing a partially-cured thermosetting resin, to a surface of the dry fiber fabric rolled out from a roll with the fixing resin interposed therebetween, thereby obtaining a first dry fiber fabric; separately fixing the resin-equipped film to a surface of the dry fiber fabric rolled out from a roll with the fixing resin interposed therebetween, and detaching the release film, thereby obtaining one or more second dry fiber fabrics; and laminating the second dry fiber fabrics on a surface of the first dry fiber fabric with the fixing resin of the second dry fiber fabrics interposed therebetween.

First claim

The invention claimed is:

1. A method for producing a preform and a fiber-reinforced plastic molding including a dry fiber fabric and a resin-equipped film, said resin-equipped film including a release film and a fixing resin fixed to one side of the release film and containing a partially-cured thermosetting resin having tackiness at a room temperature, the method comprising in the following order:
fixing said resin-equipped film rolled out from a roll state to a surface of said dry fiber fabric rolled out from a roll state with said fixing resin interposed therebetween, thereby obtaining a first dry fiber fabric having the release film and the fixing resin;
separately fixing a second resin-equipped film rolled out from a roll state to a surface of a second dry fiber fabric rolled out from a roll state with said fixing resin interposed therebetween, and detaching said release film from the second resin-equipped film attached by pressure to said second dry fiber fabric, thereby obtaining said second dry fiber fabric having the fixing resin;
laminating said second dry fiber fabric on a surface of said first dry fiber fabric, said first dry fiber fabric and said second dry fiber fabric being laminated by the fixing resin of said second dry fiber fabric;
shaping by fixing said preform to a molding die with the fixing resin interposed therebetween while detaching said release film of the preform;
impregnating said first dry fiber fabric and said second dry fiber fabric in said preform fixed to said molding die, with a liquid thermosetting resin;
curing said liquid thermosetting resin and said fixing resin to form the fiber-reinforced plastic molding; and
demolding the fiber-reinforced plastic molding from said molding die.

2. The method for producing a fiber-reinforced plastic molding according to claim 1 , wherein said shaping further includes fixing a peel ply and/or a flow media onto the second dry fiber fabric with the fixing resin adhering thereto.

3. The method for producing a fiber-reinforced plastic molding according to claim 1 , wherein said fiber-reinforced plastic molding has a foam core material between the first and second dry fiber fabrics,
the method comprising attaching said dry fiber fabrics and said foam core material by pressure.

Assignees

• Samejima Sohei
• Takeya Hajime
• Matsumoto Michihito
• Kobayashi Hiroki
• Kubo Kazuki
• Awano Yuhei
• Mabuchi Takahiro
• Mitsubishi Electric Corp

Inventors

• Samejima Sohei
• Takeya Hajime
• Matsumoto Michihito
• Kobayashi Hiroki
• Kubo Kazuki
• Awano Yuhei
• Mabuchi Takahiro

Classifications

• B29B11/16 Primary

  comprising fillers or reinforcement {(non-woven fabrics per se D04H1/00, D04H3/00)} · CPC title

• B29C2043/3644

  Vacuum bags; Details thereof, e.g. fixing or clamping · CPC title

• B29C43/305

  Making multilayered articles · CPC title

• B29C2043/486

  cooperating with rollers or drums · CPC title

• B29C43/28

  incorporating preformed parts or layers, e.g. compression moulding around inserts or for coating articles · CPC title