Skinning of ceramic honeycomb bodies
AssigneeCorning Incorporated
InventorsNatarajan Gunasekaran, Mallanagouda Dyamanagouda Patil
Life of this patent
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Abstract
A ceramic honeycomb body having a skin that does not block partial cells extending from an inlet face to an outlet face at an outer periphery portion of the body. A method of making the ceramic honeycomb body having the skin includes disposing a sheet on an outer peripheral wall of a honeycomb core having an outer surface spaced apart from interiors of the partial cells and skinning the body having the sheet disposed thereon. Subsequent curing in the method bonds the skin to cell walls of the body spaced apart from interiors of the partial cells.
Claims14
A method of forming a honeycomb body from a honeycomb core that comprises intersecting walls that form cell channels extending from a first end face to a second end face of the honeycomb core, the method comprising:
- disposing a filling material on an outer peripheral surface of the honeycomb core to fill peripheral partial cell channels at the outer peripheral surface while outer most portions of the intersecting walls of the peripheral partial cell channels are exposed,
- disposing skin batch on the filling material and on the outer most portions of the intersecting walls, wherein the filling material prevents the skin batch from filling the peripheral partial cell channels;
- and
- curing the skin batch to form a cured skin and to bond the cured skin to the outer most portions of the intersecting walls of the honeycomb core to form the honeycomb body, such that the cured skin forms an outer wall of each of the peripheral partial cell channels,
- wherein curing the skin batch comprises sacrificing at least a portion of the filling material to open each peripheral partial cell channel from the first end face to the second end face.
Dependencies are inferred from the claim text.