METHOD FOR MANUFACTURING HEAT RESISTANT MAT

摘要

PROBLEM TO BE SOLVED: To provide an improved method for manufacturing a heat resistant mat in which an organic binder substantially uniformly exists and thickness is substantially uniform in a method for manufacturing the heat resistant mat constituted by including the organic binder disappearing due to pyrolysis in an alumina fiber mat compressed in a thickness direction. SOLUTION: The method for manufacturing the heat resistant mat contains a first process in which the alumina fiber mat is impregnated with an organic binder liquid, a second process in which the alumina fiber mat impregnated with the organic binder liquid is compressed in the thickness direction and a third process in which a medium liquid of the organic binder liquid is removed while maintaining thickness of the compressed alumina fiber mat. Further alumina fiber having 30 to 60 deg. dynamic lead angle of contact with water is used as the alumina fiber and dispersed liquid of organic binder in water is used as the organic binder liquid.