B - Operations – Transporting – 29 – C
Patent
B - Operations, Transporting
29
C
B29C 47/24 (2006.01) B29B 15/12 (2006.01) B29C 44/22 (2006.01) B29C 47/00 (2006.01) B29C 47/02 (2006.01) B29C 47/06 (2006.01) B29C 47/20 (2006.01) B29C 47/52 (2006.01) B29C 47/76 (2006.01) B29C 47/90 (2006.01) B29C 47/94 (2006.01) B29C 55/00 (2006.01) B29C 55/24 (2006.01) B29C 63/34 (2006.01) B32B 1/08 (2006.01) F16L 9/12 (2006.01) F16L 9/147 (2006.01) F16L 9/21 (2006.01) F16L 11/15 (2006.01) F16L 55/162 (2006.01) B29C 53/58 (2006.01)
Patent
CA 2225402
The invention relates to an extrusion apparatus for preparing a cylindrical plastic product or for coating the product at least with one layer of plastic, the extrusion apparatus comprising at least one conical stator (3, 4, 5), at least one conical rotor (1, 2), and at least one conical supply opening (6, 7, 8, 9) between them for pressing the plastic material (M) to be extruded into an extrusion conduit (10). At the end of the rotor (1, 2) there are means (23; 12, 13; 24; 38, 39) for defibering and/or orienting the plastic material (M). The invention also relates to a method for defibering and/or orienting plastic material during the preparation or coating of a cylindrical plastic product.
La présente invention concerne un appareil à extruder, destiné à préparer un produit en plastique cylindrique, ou à recouvrir le produit d'au moins une couche de plastique. L'appareil comporte au moins un stator conique (3, 4, 5,), un rotor conique (1, 2) et un orifice d'alimentation conique (6, 7, 8, 9) disposé entre stator et rotor, de sorte que la matière plastique (M) à extruder soit forcée par une pression dans un conduit (10) d'extrusion. A l'extrémité du rotor (1, 2) se trouve un dispositif (23; 12, 13; 24; 38, 39) assurant le défibrage et/ou l'orientation de la matière plastique (M). L'invention concerne également un procédé de défibrage et/ou d'orientation de la matière plastique pendant la préparation ou le recouvrement du produit plastique cylindrique.
Jarvenkyla Jyri
Kirjavainen Kari
Cassan Maclean
Conenor Oy
Maillefer S.a.
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