Wärmedämmelement für den Endkonusteil einer Abgasumwandlungsvorrichtung

摘要

A heat insulating member for an end cone portion of an exhaust gas conversion apparatus is formed by laminating sheets each made of alumina-silica based ceramic fibers to form a matte and subjecting the matte to needling in a lamination direction of the sheets, in which a composition of the ceramic fiber used in the matte is alumina:silica = 60-80:40-20.