Verfahren und Vorrichtung zum Herstellen eines Wabenkörpers aus wärmebehandelten zwei- oder mehrschichtigen Metallfolien

摘要

The present invention concerns methods and devices for producing a honeycombed body from at least one metal foil (1) composed of at least two different layers, in particular steel roll-bonded with aluminum. The metal foil (1) is provided at least partially by shaping with a structure and is then layered or wound to form the honeycombed body, the metal foil (1), before shaping, being heat-treated by the ohmic heat generated therein. Heating is preferably brought about by induction coils (6). Cold formability is thereby increased and, if necessary, an oxide layer can be provided in a specific atmosphere (10). The invention reduces expenditure in terms of energy and apparatus and enables high-grade honeycombed bodies to be produced economically, in particular with efficiency-increasing microstructures.