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公开(公告)号：US10384369B2
公开(公告)日：2019-08-20
申请号：US13690642
申请日：2012-11-30
申请人： CORNING INCORPORATED
摘要： Extrusion systems and methods with temperature control are disclosed. The ceramic batch material is flowed through a front section wherein the temperature of the batch material is locally adjusted through its perimeter at multiple locations. The temperature-adjusted ceramic batch material is then extruded through the extrusion die to form the extrudate. Temperatures of the extrudate at multiple outer surface locations having different azimuthal positions are measured. The temperature adjustment of the ceramic batch material is then controlled in a first feedback loop to control the shape of the extrudate based on the measured outer surface temperatures. The front section can also be cooled using a second control loop.
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公开(公告)号：US20210316242A1
公开(公告)日：2021-10-14
申请号：US17264219
申请日：2019-07-15
申请人： CORNING INCORPORATED
摘要： A method for plugging a subset of cells of a honeycomb structure that includes: covering a first end face of the honeycomb structure with a mask that comprises a body and a plurality of openings, wherein the plurality of openings of the mask is coincident with a plurality of cells of the honeycomb structure; providing a plug of material upon a film material; applying a force to the film material with a piston to push the plug of material through the plurality of openings of the mask and into the plurality of cells of the honeycomb structure; and measuring a plurality of pressures within the plurality of cells of the honeycomb structure during the applying step.
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公开(公告)号：US20210299909A1
公开(公告)日：2021-09-30
申请号：US17264230
申请日：2019-07-16
申请人： CORNING INCORPORATED
摘要： A method for plugging a subset of cells of a honeycomb structure that includes: covering a first end face of the honeycomb structure with a mask that comprises a body and a plurality of openings, wherein the plurality of openings of the mask is coincident with a plurality of cells of the honeycomb structure; providing a plenum, a movable plunger and a flow plate; positioning a cylinder between the honeycomb structure and the plenum; dispensing a plugging material into the plenum; moving the plunger toward the flow plate with a force to push the plugging material through the flow plate into the cylinder, the moving generating a pressure in the plenum and the cylinder that forces the plugging material through the mask into the plurality of cells of the honeycomb structure to a predetermined depth; and determining the pressure within the cylinder during the moving of the plunger.
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