EP 1620244 A1 20060201 - DIE FOR FORMING EXTRUDATES OF VISCOELASTIC MATERIALS (FLARED INLET)
Title (en)
DIE FOR FORMING EXTRUDATES OF VISCOELASTIC MATERIALS (FLARED INLET)
Title (de)
DÜSE ZUR STRANGBILDUNG FÜR VISKOELASTISCHE MATERIALIEN (EINALUF-AUFWEITUNG)
Title (fr)
FILIERE D'EXTRUSION POUR MATIERES VISCOELASTIQUES (ELARGISSEMENT DE L'ENTREE)
Publication
Application
Priority
- CH 2004000117 W 20040303
- DE 10320075 A 20030505
Abstract (en)
[origin: WO2004098858A1] The invention relates to a die assembly (1) for forming extrudates of viscoelastic masses, e.g. polymers, dough masses etc., comprising several similar parallel die channels (2), each extending through the die assembly (1) in the axial transport direction (F) of the mass. According to the invention, the inlet zone is flared from an interior zone towards the inlet opening along a length LE and in a direction opposite to the axial transport direction (F). The flare angle of the flared inlet measured between the axial transport direction and the inner wall of the channel inlet zone ranges, at least in axial subsections, between 5° and 45°, especially between 8° and 25°.
IPC 1-7
IPC 8 full level
A21C 11/16 (2006.01); B29C 47/30 (2006.01); B29C 47/70 (2006.01); B29C 48/09 (2019.01); B29C 48/345 (2019.01)
CPC (source: EP US)
A21C 11/16 (2013.01 - EP US); B29C 48/05 (2019.01 - EP US); B29C 48/09 (2019.01 - EP US); B29C 48/345 (2019.01 - EP US); B29C 48/695 (2019.01 - EP US)
Citation (search report)
See references of WO 2004098858A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2004098858 A1 20041118; CN 100584580 C 20100127; CN 1798643 A 20060705; DE 10320075 A1 20041202; EP 1620244 A1 20060201
DOCDB simple family (application)
CH 2004000117 W 20040303; CN 200480012031 A 20040303; DE 10320075 A 20030505; EP 04716525 A 20040303