Method for producing a dimensionally accurate honeycomb body
AssigneeEMITEC Gesellschaft fuer Emissionstechnologie mbH
InventorsLudwig Wieres, Jörg Gutowski, Hans-Günter Faust, Ferdi Kurth, Franz Föhres
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Abstract
A method for producing a honeycomb body having a honeycomb structure disposed in a housing, includes at least forming a honeycomb structure, inserting the honeycomb structure into a housing, carrying out a heat treatment operation on the honeycomb structure having the housing, contacting outer regions with a molding, at least during the inserting step or the heat treatment step, and reproducing a desired outer contour of the housing with contact faces of the molding. A molding and an exhaust gas treatment unit produced with a thin housing in a dimensionally accurate manner, are also provided.
Claims7
A method for producing a honeycomb body having a honeycomb structure disposed in housing, the method comprising the following steps:
- a) forming a honeycomb structure;
- b) inserting the honeycomb structure into a housing;
- c) coating the honeycomb body and/or forming sintered, brazed and/or welded connections within the honeycomb structure by carrying out a heat treatment operation on the honeycomb structure having the housing;
- d) contacting outer regions of the housing with a single molding, at least during steps b) and c);
- and
- e) ensuring dimensional accuracy of the honeycomb body by reproducing a desired outer contour of the housing with contact faces of the molding.
A method for producing a honeycomb body having a honeycomb structure disposed in housing, the method comprising the following steps:
- a) forming a honeycomb structure;
- b) inserting the honeycomb structure into a housing;
- c) coating the honeycomb body and forming sintered, brazed and/or welded connections within the honeycomb structure by carrying out a heat treatment operation on the honeycomb structure having the housing;
- d) contacting outer regions of the housing with a single molding, at least during steps b) and c);
- and
- e) ensuring dimensional accuracy of the honeycomb body by reproducing a desired outer contour of the housing with contact faces of the molding.
Dependencies are inferred from the claim text.