Title:
【発明の名称】押出し管の製造方法と該方法を実施する装置
Document Type and Number:
Japanese Patent JPS60501053
Kind Code:
A
Abstract:
PCT No. PCT/SE84/00128 Sec. 371 Date Dec. 11, 1984 Sec. 102(e) Date Dec. 11, 1984 PCT Filed Apr. 9, 1984 PCT Pub. No. WO84/04070 PCT Pub. Date Oct. 25, 1984.A method of manufacturing extruded pipes where plasticized material, for example plastic material, is advanced to an extrusion nozzle comprising a circular gap (2). The method is especially characterized in that the material is transported axially in said gap (2) while material is moved, for example rotated, in the circumferential direction of the gap (2) so that the material at least partially is caused to assume an orientation deviating from the axial direction, whereby a non-axial orientation will prevail in the extruded pipe (3) and increase the strength. The invention also relates to an apparatus for carrying out the method.
Inventors:
Doziewowski, Andre
Piotrowski, Kurdisutov
Zaremba, Kurdisutov
Piotrowski, Kurdisutov
Zaremba, Kurdisutov
Application Number:
JP50176984A
Publication Date:
July 11, 1985
Filing Date:
April 09, 1984
Export Citation:
Assignee:
Lundberg, Matsu
International Classes:
B29C48/325; B29C48/09; B29C48/33; B29C48/50; (IPC1-7): B29C47/22; B29C47/58; B29L23/22
Attorney, Agent or Firm:
Asamura Akira