B - Operations – Transporting – 29 – C
Patent
B - Operations, Transporting
29
C
B29C 35/16 (2006.01) B29C 33/46 (2006.01) B29C 45/43 (2006.01) B29C 45/72 (2006.01)
Patent
CA 2600688
A cooling tube assembly for operating on a malleable molded plastic part. The cooling tube assembly comprising a porous tube/insert having a profiled inner conditioning surface, and a vacuum structure configured to cooperate with the porous tube. In use, the vacuum develops a reduced pressure adjacent the inner conditioning surface to cause an outer surface of the malleable molded plastic part, locatable within the cooling tube assembly, to contact the inner conditioning surface of the porous insert so as to allow a substantial portion of the outer surface of the malleable part, upon cooling, to attain a profile substantially corresponding to the profile of the inner conditioning surface. The cooling tube assembly having a porous insert The conditioning body having a porous member that includes an inner porous portion formed from a thermally conductive first porous material that is at least partially enclosed by an outer porous portion formed from a thermally conductive second porous material preferably having a higher porosity than the first porous material. The outer porous portion is configured for providing a fluid communication pathway between the pressure structure and the inner porous portion that supports a fast and homogenous pressure response.
L~invention concerne un assemblage de tubes de refroidissement pour une opération sur une pièce de plastique malléable. L~assemblage de tube de refroidissement comprend un(e) tube/garniture intérieur(e) comportant une surface de conditionnement intérieure profilée et une structure de vide configurée pour coopérer avec le tube poreux. Dans son application, le procédé de l~invention comporte un vide qui développe une pression réduite adjacente à la surface de conditionnement interne afin d~atteindre un profil correspondant de manière non négligeable au profil de la surface intérieure de conditionnement pendant le refroidissement. L'assemblage de tubes comporte une garniture intérieure poreuse. Le corps de conditionnement comporte un élément poreux qui comprend une partie intérieure poreuse formée à partir d'un premier matériau poreux à conductivité thermique qui est au moins partiellement contenu par une partie externe poreuse formée d'un second matériau poreux à conductivité thermique, caractérisé par une porosité supérieure au premier matériau. La partie poreuse externe est configurée de manière à établir un chemin de communication fluidique entre la structure de pression et la partie poreuse qui supporte la pression de manière homogène.
Ansari Omeir Shahid
Neter Witold
Romanski Zbigniew
Husky Injection Molding Systems Ltd.
Husky Intellectual Property Services
LandOfFree
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