B - Operations – Transporting – 32 – B
Patent
B - Operations, Transporting
32
B
B32B 15/08 (2006.01) B29C 33/02 (2006.01) B29C 35/02 (2006.01) B32B 37/20 (2006.01) H05K 3/02 (2006.01)
Patent
CA 2164190
Continuous process for manufacturing, in a cold press (11), plastic laminates with copper laminae and intermediate layers of prepreg, by multicomposition bands (78, 98, 118) with copper laminae (62, 63, 82, 83, 102, 103) and bands (73-75, 93-95, 113-115) of prepreg continuously fed in from reels (60, 61, 70-72) which, placed one upon another, pass through the press (11), endothermic heating being provided by circulating electric current in the fractions of copper laminae (62, 63, 82, 83, 102, 103) which remain pressed in the press (11) during cyclic closing stages.
L'invention se rapporte à un procédé pour la fabrication en continu, dans une presse à froid (11) de stratifiés de plastique ayant des feuilles de cuivre et des couches intermédiaires de préimprégné, à l'aide de bandes multicomposition (78, 98, 118). Des bobines (60, 61, 70, 72) déroulent en continu des feuilles de cuivre (62, 63, 82, 83, 102, 103) et les couches de préimprégné (73-75, 93-95, 113-115) qui traversent la presse (11), en position superposée. Un chauffage endothermique est assuré par un courant électrique en circulation dans les fractions des feuilles de cuivre (62, 63, 82, 83, 102, 103) qui restent sous pressage dans la presse (11) pendant les phases d'arrêt cycliques.
Cedal Srl
Sim & Mcburney
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