Extrusion die assembly

Details Extrusion die assembly Extrusion die assembly

B - Operations, Transporting

29

C

18/738, 18/741

B29C 47/06 (2006.01) B29C 47/22 (2006.01) B29C 47/26 (2006.01)

Patent

CA 1308531

ABSTRACT The invention concerns an extrusion die assembly especially for use where accurate centering of a mandrel is important. The assembly includes a first member having a mandrel projecting therefrom and an extrusion passage generally in line with the mandrel, which extrusion passage is, at one end, of cross section to conform with a passage carrying extrudate for the extrusion head and which merges, over its length, into an extrusion passage at the other end, at least partially surrounding the root of the mandrel. This member is adjustably located in an outer member, which together with the mandrel defines an extrusion nozzle. Since the extrusion passage passes through the first member it is possible to provide positioning means for the first member and the mandrel without interfering with extrudate flow.

579800

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