METHOD OF MANUFACTURE OF METAL BLOCK FOR EXHAUST GAS CATALYTIC CONVERTER OF INTERNAL COMBUSTION ENGINE Russian patent published in 1997 - IPC

FIELD: mechanical engineering; internal combustion engine catalytic converters. SUBSTANCE: method includes corrugating of steel heat resistant tape, provision of contact between plain and corrugated tapes, fastening of so-made honeycomb structure in required points, application of ceramic material and catalyst. Prior to application of ceramic material and catalyst, block is held additionally for 0.5 - 5 h in active gas medium at temperature of 950-1250 C. Gas mixture contains aluminium halides. Used as aluminium halides are aluminium fluorides $$$ at summary partial pressure of 10-160 mm Hg. EFFECT: improved quality of metal block. 2 cl, 2 dwg