Patent ID: 9174880
Filing Date: 2015-11-03
Classification: B01D,C04B,Y10T

Abstract:
1. A manufacturing method of a honeycomb structure comprising: a kneaded clay preparing step of mixing and kneading forming raw materials containing a ceramic raw material to obtain a kneaded clay; a forming step of extruding the obtained kneaded clay through an extrusion die comprising slits having a slit width, to form a honeycomb shape to obtain a honeycomb formed article; and a firing step of drying and firing the obtained honeycomb formed article to obtain the honeycomb structure including porous partition walls by which a plurality of cells that become through channels of a fluid are partitioned, wherein in the kneaded clay preparing step, a pore former having an average particle diameter larger than the slit width is added to the ceramic raw material to prepare the kneaded clay.