Method and apparatus for molding composite articles

Details Method and apparatus for molding composite articles Method and apparatus for molding composite articles

B - Operations, Transporting

29

C

B29C 70/44 (2006.01) B29C 45/14 (2006.01) B29C 45/37 (2006.01) B29C 45/76 (2006.01)

Patent

CA 2362768

A method and apparatus for molding composite articles can includes a pair of opposed hollow mold sections (14, 16) having first and second molding membranes (32, 34) which define a mold plenum (22) therebetween. Each mold section (14, 16) can be filled with a substantially noncompressible, thermally conductive fluid. The temperature of the mold plenum (22) can be controlled by regulating the temperature of the thermally conductive fluid. Sensing of various parameters during the injection and curing processes of the molding fluid, for example pressure, flowrate, temperature and filling of the plenum can be used to optimize the molding process.

La présente invention concerne un procédé et un appareil destinés au moulage d'objets en composites. Cet appareil peut comprendre une paire de sections creuses opposées (14, 16) dotées de première et seconde membranes de moulage qui définissent entre elles un espace de moulage (22). Chaque section de moule (14, 16) peut être remplie d'un fluide conducteur thermique, sensiblement incompressible. La température de l'espace de moulage (22) peut être contrôlée par régulation de la température du fluide thermoconducteur. Il est possible d'utiliser la mesure de plusieurs paramètres durant l'injection et la cuisson, par exemple pression, débit, température et remplissage de l'espace de moulage, afin d'optimiser le procédé de moulage.

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