Method of making a cross-flow honeycomb structure

Details Method of making a cross-flow honeycomb structure Method of making a cross-flow honeycomb structure

1995-06-26

1997-08-26

Czaja, Donald E.

Plastic and nonmetallic article shaping or treating: processes

Outside of mold sintering or vitrifying of shaped inorganic...

Producing article having plural hollow channels

26417717, 26417718, 264204, 26417712, 156 89, 156210, 156290, 15624411, 15624422, B29C 4700

Patent

active

056607784

ABSTRACT:
The present invention is directed to a novel method for extruding a honeycomb structure. The method comprises the use of an extrusion die with primary and secondary feed holes and associated discharge slots, wherein extruded material exits the primary discharge slots at a faster rate than the secondary discharge slots. The faster moving extruded material buckles and forms a corrugated layer in between the two secondary extruded layers. The secondary extruded layers form straight cells. The material to be extruded maybe ceramic, plastic or metal.

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John Benbow and John Bridgwater Paste Flow and Extrusion Oxford University Press, New York, 1993.

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