Method and apparatus for extrusion of profiled helical tubes

Details Method and apparatus for extrusion of profiled helical tubes Method and apparatus for extrusion of profiled helical tubes

B - Operations, Transporting

29

C

B29C 47/24 (2006.01) B29C 47/00 (2006.01) B29C 47/12 (2006.01) B29D 23/00 (2006.01)

Patent

CA 2594034

The present invention relates to a method of forming and an apparatus for forming a profiled helical tube (100, 200) by rotating a profile die (102, 202) during the extrusion process to impart a helical form to a profiled tube. A method of forming and an apparatus for forming a profiled helical tube (100, 200) can include a rotating or non-rotating profile die (202) with a helical extrusion gap (204). An extruded helical or non-helical tube 300 can be rotated by rotating the tube itself, for example, by rotating a haul-off mechanism (340, 340').

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