Continuous production of profiles in a sandwich type of construction with foam cores and rigid-foam-filled profile
AssigneeEvonik Röhm GmbH
InventorsSebastian Buehler, Karl-Heinz Semlitsch, Sivakumara K. Krishnamoorthy
Life of this patent
Estimating the term…
Abstract
The present invention relates to a novel process for the production of novel fiber-reinforced profile materials comprising a rigid foam core, in particular a PMI foam core. In particular, the present invention relates to a novel process which can be carried out in two variants, a short Pul-press process and a Pul-shape process. One step here produces a fiber-reinforced profile material and simultaneously inserts the rigid foam core into same. The same step moreover ensures very good binding of the rigid foam core to the fiber-reinforced profile material.
Claims15
A process for continuous production of fibre-reinforced profiles comprising a foam core, the process comprising:
- a) introducing foam cores and connecting a newly introduced foam core to an end of the most recently introduced foam core;
- b) wrapping a fibre material around the foam core;
- c) impregnating the fibre-material wrap with a resin;
- d) optionally moulding the wrapped foam core in a first mould;
- e) heating and thereby optionally hardening the resin in a second mould;
- f) cooling the wrapped foam core in a third mould;
- and
- g) separating individual profiles by cutting or sawing and removing the finished workpiece,
- wherein the second and third mould are moved in respectively mutually opposite direction on carriages.
Dependencies are inferred from the claim text.