Patent ID: 6375450
Filing Date: 2002-04-23
Classification: B28B,B29C,B29K,B29L

Abstract:
An apparatus for extruding a ceramic honeycomb article comprising:a first co-rotating, intermeshing twin screw extruder for mixing and screening a batch of ceramic material, said first twin screw extrusion apparatus comprising a first feed inlet at one end, a first discharge outlet at the other end, and a filtering screen detachably mounted adjacent said first discharge outlet; a second co-rotating, intermeshing twin screw extruder downstream from said first twin screw extruder for extruding said batch through a die assembly, said second twin screw extruder comprising a second feed inlet at one end corresponding to said first discharge outlet of said first twin screw extruder and a second discharge outlet at the other end; means for linking said first co-rotating, intermeshing twin screw extruder to said second co-rotating, intermeshing twin screw extruder; a die assembly attached to said second discharge outlet of said second twin screw extruder for producing a honeycomb article.