B - Operations – Transporting – 29 – C
Patent
B - Operations, Transporting
29
C
B29C 47/12 (2006.01) B29C 47/00 (2006.01) B29C 47/86 (2006.01) B29C 49/00 (2006.01) B29C 53/30 (2006.01)
Patent
CA 2089183
An apparatus for making smooth walled tube (20) in a travelling mold tunnel (26) includes corrugations (32) for traction of tube being molded. An extrusion nozzle (16) having an exit angle of 45° or more may provide additional advantage.
Appareil utilisé pour fabriquer un tuyau (20) à paroi lisse dans un tunnel (26) de moulage mobile, comprenant des striures (32) qui servent à tirer le tuyau en cours de moulage. Un ajutage (16) d'extrusion présentant un angle de sortie égal ou supérieur à 45° peut constituer un avantage supplémentaire.
Johnson Douglas S. Q.c.
Lupke Manfred A. A.
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