Method For Coating Honeycomb Bodies
OwnerTonia Havewala Fletcher, Karen Knapp +4inventors
InventorsTonia Havewala Fletcher, Karen Knapp, Gabrielle Lange, William Paul Ryszytiwskyj, Rebecca Lynn Schulz, Gary Graham Squier
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Abstract
A ceramic coating is provided on the outer surface of a honeycomb body by applying a first layer of coating material comprising a ceramic or ceramic-forming component to the outer surface, subjecting at least part of the first layer to at least partial curing, and then adding one or more additional layers of coating material comprising a ceramic or ceramic-forming component over the previously applied and cured layer(s).
Claims20
A method for applying a ceramic coating to an outer surface of a honeycomb body comprising
- applying a first layer of coating material comprising a ceramic or ceramic-forming component to the outer surface of the body and
- applying at least one additional layer of coating material comprising a ceramic or ceramic-forming component on top of the first layer;
- wherein at least part of the first layer is subjected to at least partial curing prior to applying the additional layer.
A method of applying a multi-layer coating to a honeycomb body comprising opposing first and second end faces and an outer side surface extending between the first and second end faces, the body being disposed about a longitudinal axis extending through the first and second end faces, the method comprising:
- spraying a coating material onto the outer side surface while rotating the body about the longitudinal axis to form a first wet layer of the coating material, and
- at least partially drying the first wet layer prior to forming a succeeding wet layer.
A method of applying a multi-layer coating to a honeycomb body comprising opposing first and second end faces and an outer side surface extending between the first and second end faces, the body being disposed about a longitudinal axis extending through the first and second end faces, the method comprising:
- rotating the body about the longitudinal axis and applying one part of a first layer of coating material to a first part of the outer surface corresponding to a first arc of rotation;
- heating the first layer on the first part of the outer surface while simultaneously applying another part of the first layer of coating material to a second part of the outer surface corresponding to a second arc of rotation.
The method of claim 19 wherein the first arc is 180°.
Dependencies are inferred from the claim text.