APPARATUS FOR CATALYTICALLY DECONTAMINATING EXHAUST GASES AND METHOD FOR PRODUCING THE APPARATUS

摘要

Metal catalysts which are welded by means of laser or electron beams to a surrounding shell are known. A disadvantage of these is that the connection between metal catalyst and surrounding shell is of inadequate strength. It is proposed for a metal support (1) to comprise a plurality of layers of corrugated or corrugated and smooth sheets (3, 4) which are stacked one on top of the other and twisted and which have smooth, mutually overlapping end sections (5, 5'). The end sections (5, 5') form on the circumference of the metal support (1) an outer layer (8) which is connected, preferably welded, to the surround (2). Use for exhaust catalysts of internal-combustion engines.