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US 2020/0276745 A1Published application
Screw elements for extrusion apparatus and methods of manufacturing a honeycomb body
AssigneeCorning Incorporated
InventorsDavid Robertson Treacy, Jr., Conor James Walsh, Stephanie Stoughton Wu
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Abstract
Screw elements, extrusion apparatus, and methods of manufacturing honeycomb bodies are described herein. A segment for a ceramic batch screw extruder machine has at least one pump and mix screw element. The pump and mix screw element has a pitch, a diameter, and a pitch to diameter ratio of 0.8 to 2.6.
Claims22
A segment for a ceramic batch screw extruder machine, the segment comprising:
- at least one pump and mix screw element, wherein the pump and mix screw element comprises a pitch, a diameter, and a pitch to diameter ratio of 0.8 to 2.6.
A ceramic batch screw extruder machine, the machine comprising:
- at least one barrel;
- a shaft disposed at least partially within the at least one barrel;
- a segment disposed along the shaft and the segment comprising at least one pump and mix screw element, wherein the pump and mix screw element comprises a pitch, a diameter, and a pitch to diameter ratio of 0.8 to 2.6.
(canceled)
(canceled)
A method of making a honeycomb body, the method comprising:
- pumping and mixing ceramic batch in a screw extruder machine;
- and
- extruding the batch through a die to form the honeycomb body,
- wherein the extruder comprises mix screw element comprising a pitch, a diameter, and a pitch to diameter ratio of 0.9 to 2.2.
1 more element
Dependencies are inferred from the claim text.