Helical extrusion screw having force producing components

Details Helical extrusion screw having force producing components Helical extrusion screw having force producing components

B - Operations, Transporting

29

F

18/733

B29F 3/06 (1980.01)

Patent

CA 1037662

HELICAL EXTRUSION SCREW HAVING FORCE PRODUCING COMPONENTS Abstract of the Disclosure The present invention relates to a screw for advancing and working thermoplastic materials. The screw is comprised of a core which has an axis of rotation for advancing the thermoplastic material and at least one flight connected to and extending outwardly from the core to a surface of revolution concentric with the axis of rotation, the flight being generated helically about the axis. At least one plurality of force-producing components is connected to the core for subjecting the material to a plurality of forces. Each of the force producing components extend beyond the core along an axis associated with the component which intersects the core and which is spaced from the surface of revolution.

297765

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