Apparatus for manufacturing ribbed pipes

Details Apparatus for manufacturing ribbed pipes Apparatus for manufacturing ribbed pipes

B - Operations, Transporting

29

C

B29C 33/36 (2006.01) B29C 43/22 (2006.01) B29C 47/00 (2006.01) B29C 47/12 (2006.01) B29D 23/00 (2006.01) B29D 23/18 (2006.01)

Patent

CA 2060899

This invention relates to an apparatus for manufacturing ribbed pipes. The central axis of the apparatus has a core (8, 9, 10) about which a material in a plastic state is extruded through a nozzle (11). The end of the core has a kernel (10) of a substan- tially constant diameter which calibrates the inner surface of the pipe. The outer surface of the pipe acquires its form from axially moving moulds (1, 2). The kernel has a heated initial zone and a cooled end zone (14, 15). In known apparatus, the grooves (13) of the moulds are often incompletely filled and the inner surface of the pipe is made uneven. These drawbacks can be avoided by disposing a cooled widening end face (20) at the outset of the end zone (15) of the kernel.

Affiliated with

Also associated with

Rating

Apparatus for manufacturing ribbed pipes does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Apparatus for manufacturing ribbed pipes, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus for manufacturing ribbed pipes will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1586970