Machine for continuously producing plastic laminates in a...

B - Operations – Transporting – 32 – B

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B32B 37/10 (2006.01) H05K 3/02 (2006.01)

Patent

CA 2473982

Continuous installation (10) for the production of plastic laminates including multi-layer laminates (110, 120, 130), comprising a cold press (11) having a lower fixed plate (12) on which is laid a band of aluminium for carrying and drawing inside the press strips of copper (50, 90) and bands of pre-preg (70, 71, 80, 81) partially sliding on the surface of a structure (60) upstream of the press, to allow multi-layer laminates (130) to be placed on said bands (70, 71), said aluminium band (20) remaining in continuous contact with a pair of electrodes (30, 31), placed respectively at the entry to and at the exit from the press, and connected tothe electric circuit of a generator (40)of electric current so that, on closure of the press and of said electric circuit, the fraction of metal band (20) comprised between the two electrodes (30, 31) functions as an electric resistance generating the heat needed for pressing. Ref. Fig. 1

L'invention concerne une installation continue (10) pour la production de laminés plastiques comprenant des laminés multicouches (110, 120, 130). Cette installation comprend une presse à froid (11) comportant un plateau fixe inférieur (12) sur lequel est posé une bande d'aluminium permettant de porter et d'étirer à l'intérieur de la presse des bandes de cuivre (50, 90) et des bandes de préimprégné (70, 71, 80, 81), coulissant partiellement sur la surface d'une structure (60) située en amont de la presse, pour permettre à des laminés multicouches (130) d'être placés sur lesdites bandes (70, 71), ladite bande d'aluminium (20) restant en contact continuel avec une paire d'électrodes (30, 31) placées respectivement à l'entrée et à la sortie de la presse, et reliées au circuit électrique d'un générateur (40) de courant électrique de sorte que, à la fermeture de la presse et dudit circuit électrique, la partie de bande métallique (20) comprise entre les deux électrodes (30, 31) fonctionne en tant que résistance électrique générant de la chaleur nécessaire au pressage.

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