METAL CARRIER HAVING THERMAL FATIGUE RESISTANCE FOR AUTOMOBILE EXHAUST GAS CLEANING CATALYSTS

摘要

According to the present invention, a metal carrier consists of an end wall member formed at least one axial end portion of a honeycomb body and an outer cylinder reinforcing layer formed by bonding at an axially intermediate portion up to 1/4 of a total number of windings starting at the outermost periphery, whereby the honeycomb body is furnished with suitable expansibility and contractibility. Since the combining of the honeycomb body with an outer cylinder is done mainly at the outermost periphery of the outer cylinder reinforcing layer of the honeycomb body, the thermal stress occurring between the honeycomb body and outer cylinder can be minimized with the strength at a high temperature of the metal carrier maintained at a predetermined level. This prevents the metal carrier from being broken.