Metallischer Wabenkörper und Verfahren zur Herstellung derselben

摘要

This invention relates to a method of manufacturing a metal support for holding a catalyst for cleaning an automobile exhaust gas, consisting of the steps of forming a cross-sectionally honeycomb type core, inserting a front end portion of the resultant core into an outer cylinder, the inner diameter of which is substantially equal to the outer diameter of the core, with at least one end portion of the outer cylinder expanded, press-fitting the core into the outer cylinder by pressing an end surface of the former, and then contracting the expanded portion of the outer cylinder to the original dimensions by heat-treating the same; or forming a cross-sectionally honeycomb type core, forming a foil solder-wound portion by winding foil solder around a substantially axially intermediate part of the core, drawing the resultant core to an outer diameter smaller than the inner diameter of an outer cylinder by using a stepped portion-carrying metal mold before press-fitting the core into the outer cylinder the inner diameter of which is substantially equal to the outer diameter of the core, and then press-fitting the core into the outer cylinder. Especially, a non-circular metal honeycomb support consists of an outer cylinder in which a core is housed and fixed, this core being obtained by forming a core member using a take-up member composed of two rod type or plate type materials having regularly spaced opposed rifts, and then winding in layers flat plates and wavy plates around the outer circumferential surface of the core member with the end portions of the flat and wavy plates inserted into the rifts in the take-up member.