Plastic and nonmetallic article shaping or treating: processes – Carbonizing to form article – Agglomeration or accretion
Patent
1992-04-03
1994-08-16
Woo, Jay H.
Plastic and nonmetallic article shaping or treating: processes
Carbonizing to form article
Agglomeration or accretion
264257, B29C 3502
Patent
active
053384970
ABSTRACT:
An induction heating method includes the steps of molding composite material having non-induction heatable reinforcement material and induction heatable material in a thermally curable polymer based resin, followed by curing the polymer based resin at least partially while in the mold by exposure to a time varying magnetic field. The molding tool apparatus has molding tool members defining a molding tool cavity corresponding to the desired composite article, and an induction heating system having induction coils integral with the molding tool members such that the molding tool cavity is disposed between them. An electrical circuit for providing power to the induction coils to generate a time varying magnetic field about the molding tool cavity includes an RF generator and a matching network for matching the impedance of the induction coils, electrical leads and connections of the induction heating system to the output of the RF generator.
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"Resin Transfer Molding for Advanced Composites", Advanced Composites Mar./Apr. 1990, pp. 61-80.
Murray Allan D.
Tisack Michael D.
Wu Yitah R.
Davis Robert B.
Ford Motor Company
May Roger L.
Porcari Damian
Woo Jay H.
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