Method for the unilateral or bilateral sealing or filling of flow channels in an annular zone of a cylindrical honeycomb body
AssigneeDegussa AG
InventorsRainer Domesle, Bernd Engler, Wolfgang Kuhl, Egbert Lox, Oliver Fehnle, Walter Leibold
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Abstract
A method for the sealing of flow channels in an annular zone of a cylindrical honeycomb body. The sealing of the flow channels takes place by introduction of a ceramic compound into the flow channels by means of a nozzle, wherein nozzle and honeycomb body are moved relative to one another with simultaneous guiding of the nozzle past the lateral surface and/or past the end face contour of the honeycomb body.
Claims11
A method for the unilateral or bilateral sealing or filling of flow channels in an annular zone of a cylindrical honeycomb body which is bounded by two end faces having a contour, which form the inlet and outlet face of said honeycomb body, and by an enveloping lateral surface, comprising introducing a ceramic compound into said flow channels in said annular zone of at least one of said end faces by means of at least one nozzle having a nozzle opening, wherein the width of said nozzle opening is at least equal to the greatest diagonal of a flow channel and wherein the sealing or filling of said flow channels is performed by locating the nozzle over said end face and moving said nozzle and said end faces laterally relative to one another during sealing or filling of said flow channels with simultaneous guiding of said nozzle over said end face in said annular zone during said sealing or filling along said lateral surface or along said contour of said end face.
Dependencies are inferred from the claim text.