摘要:
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.
摘要:
A filter layer includes at least partially gas-permeable material having a plurality of segments joined to one another in such a way that the filter layer has non-parallel edges. Inexpensive manufacturing methods for such a filter layer, conical honeycomb bodies having the filter layer and particle-filtering exhaust gas purification apparatuses for motor vehicles, are also provided.
摘要:
A honeycomb body includes an inlet end side and an outlet end side. Metal sheets are wound, intertwined and/or layered into a multiplicity of sheet metal layers being at least partially structured to form channels leading from the inlet end side to the outlet end side. Edges of at least some of the sheet metal layers have cutouts formed therein at the inlet end side and/or the outlet end side, resulting in a fissured structure of the inlet end side and/or the outlet end side. As a result, only the smooth metal sheets or only the structured metal sheets or both can be provided with the cutouts. Additionally, at least some of the metal sheets can be made of a porous material, in particular compressed metal fibers. Deposition of soot particles on the end sides of the honeycomb body is, to a large extent, prevented due to the cutouts.
摘要:
A housing for an exhaust gas treatment component includes a casing having a first thickness and a first length and at least one sleeve having a second thickness and a second length. The at least one sleeve is at least partially in contact with the outside of the casing and is connected thereto. The second length of the at least one sleeve is shorter than the first length of the casing. An exhaust gas treatment component, an exhaust gas system and a motor vehicle are also provided.