VERFAHREN ZUM BELEIMEN UND BELOTEN EINES METALLISCHEN KATALYSATOR-TRAEGERKOERPERS UND ZUGEHOERIGE VORRICHTUNG

摘要

Process and device for gluing and soldering a rolled or coated honeycomb body (8) composed of layers of structured metal sheets (1, 2) and having a plurality of channels for the passage of a fluid. To obtain high-strength solder joints, the metal sheets are coated, prior to rolling or coating, in the regions to be soldered (3; 4; 5; 6; 7), with an adhesive or binder, preferably a bonding emulsion. The metal sheets are then rolled or layered to form a honeycomb body (8) and only then is the body (8) sprinkled with solder powder. The process accelerates the manufacturing process, because separate drying times for a drying emulsion are not required, and results in high-quality solder joints, because no solder particles can settle between the points of contact of the metal sheets. Despite this, selective solder joints can be produced inside the honeycomb body. High-quality solder joints such as those required in starting catalysts incorporated in motor vehicles in the region of the engine can thereby be produced.