B - Operations – Transporting – 29 – C
Patent
B - Operations, Transporting
29
C
B29C 47/02 (2006.01) B21C 23/24 (2006.01)
Patent
CA 2663326
The invention relates to a method for producing a strand-shaped part, wherein a hollow section (16) of metal is extruded, the extruded metal hollow section (16) cools and/or is cooled, and a plastic strand (28) having one or more layers is extruded into the extruded metal hollow section (16) after or during cooling. The plastic strand (28) passes by a dispensing tool (24), exposed to the heat of the extruded metal hollow section (16) of an extruder (34). The dispensing tool is inserted into the metal hollow section (16) and comprises a dispensing outlet (26), which is disposed inside a region of the metal hollow section (16) in which the dispensing tool is cooled in relation to the temperature thereof during extrusion.
L'invention concerne un procédé de fabrication d'une pièce en forme de boudin, dans lequel un profilé creux (16) en métal est extrudé, le profilé creux métallique extrudé (16) refroidit et/ou est refroidi et un boudin en matière plastique (28) à une ou plusieurs couches est extrudé dans le profilé creux métallique extrudé (16) après ou pendant son refroidissement. Le boudin en matière plastique (28) passe dans un outil de distribution (24) d'une extrudeuse (34) introduit dans le profilé creux métallique (16), soumis à la chaleur du profilé creux métallique (16), lequel outil présente une ouverture de distribution (26) disposée à l'intérieur d'une zone du profilé creux métallique (16) dans laquelle celui-ci est refroidi par rapport à sa température lors de l'extrusion.
Freermann Reinhold
Riesselmann Franz-Josef
Winterstein Ralf
Oyen Wiggs Green & Mutala Llp
Uponor Innovation Ab
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