B - Operations – Transporting – 29 – C
Patent
B - Operations, Transporting
29
C
B29C 44/10 (2006.01) B29C 33/38 (2006.01) B29C 45/57 (2006.01)
Patent
CA 2696510
Press system (10, 11, 12, 13, 14) for production of partially expanded polymer bodies, comprising a mould cavity (20) of variable volume, temperature control means (30), counter 5 pressure means (40) arranged to counteract expansion of the mould cavity during moulding, wherein the pressure applied by the counter pressure means is arranged to increase in response to expansion of the mould cavity. There is also provided a method of moulding a partially expanded polymer body.
L'invention concerne un système de presse (10, 11, 12, 13, 14) pour la production de corps polymères partiellement expansés, comprenant une cavité de moule (20) de volume variable, des moyens de contrôle de température (30), un moyen de contre-pression (40) agencé pour neutraliser l'expansion de la cavité de moule pendant le moulage, la pression appliquée par le moyen de contre-pression étant supposée augmenter en réponse à l'expansion de la cavité de moule. Un procédé de moulage d'un corps polymère partiellement expansé est également fourni.
Karlsson Roland
Paulsson Anders
Stigsson Jerry
Diab International Ab
Robic
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