B - Operations – Transporting – 29 – C
Patent
B - Operations, Transporting
29
C
18/737
B29C 47/24 (2006.01)
Patent
CA 1282216
A METHOD FOR EXTRUSION OF PLASTIC TUBES, AND AN APPARATUS FOR CARRYING OUT SAID METHOD ABSTRACT OF THE DISCLOSURE A method and a device for extrusion of plastic tubes with use of a screw extruder which has a tube moulding head comprising an external stationary nozzle and a mandrel which is supported against the nozzle head by the aid of ribs. The plastic material is made to rotate by the mandrel rotating about its axis and by the aid of inclined ribs that are attached to the nozzle wall or the mandrel. Then the edges of the screw line shaped cuts occuring due to said ribs are made to join together in a subsequent tool member. The apparatus comprises a screw extruder with a tube moulding head comprising of an external stationary nozzle with a passage corresponding to the external contour of said tube, and a mandrel the cross section of which corresponds to the internal contour of said tube. The mandrel is rotatable, and the spokes or ribs are inclined or extend along a screw line and are attached to said mandrel or in the external mould member.
536481
A/s Sõnnichsen Rõrvalseverket
Riches Mckenzie & Herbert Llp
LandOfFree
Method for extrusion of plastic tubes, and an apparatus for... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method for extrusion of plastic tubes, and an apparatus for..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for extrusion of plastic tubes, and an apparatus for... will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1193139