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US 2014/0197566 A1Published application
Twin screw extruder
AssigneeKing Abdulaziz City for Science and Technology
InventorFares D. ALSEWAILEM
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Abstract
An extruder is disclosed, and more particularly, a twin screw extruder for mixing, compounding, kneading and/or extruding of materials. The twin screw extruder includes a barrel assembly having a housing. The twin screw extruder further includes a first screw provided within the housing and comprising threads. The twin screw extruder further includes a second screw provided within the housing and comprising a threaded portion and a shaft portion devoid of threads. A drive system which drives the first screw and the second screw.
Claims8
A method of mixing material, comprising:
- placing material within a hopper assembly for feeding into a first compartment;
- transporting the material from the first compartment to a second compartment using a single threaded screw configuration;
- kneading the material in the second compartment with a twin screw configuration;
- and
- metering the material to a die with a single threaded screw configuration, different than the single threaded screw configuration used for transporting.
2 more elements
Dependencies are inferred from the claim text.