Extruder screw with conveying portions and barrier portions and extrusion methods using the extruder screw and a plurality of barrel blocks
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United States of America Patent
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Aug 2, 2022
Grant Date -
Aug 10, 2017
app pub date -
Apr 26, 2017
filing date -
Oct 27, 2014
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An extruder includes a screw for extruder provided with a screw element for kneading a raw material, and a barrel including a cylinder portion in which the screw is inserted so as to be rotatable. A plurality of screw elements identical with the screw element are provided in a longitudinal direction of the screw under a certain rule. The barrel is integrated by combining a plurality of barrel blocks blocked. Each of the plurality of barrel blocks is configured in accordance with a length of the screw element provided in the longitudinal direction of the screw.
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