公开(公告)号：US20220281136A1

公开(公告)日：2022-09-08

申请号：US17645470

申请日：2021-12-22

申请人： NGK INSULATORS, LTD.

发明人： Moriaki MATOBA ,  Masahiro TOKUDA ,  Hiroki KITABAYASHI

IPC分类号： B28B3/26 ,  B28B11/24 ,  B01D46/24 ,  C04B38/00

摘要： A method for producing a conductive honeycomb structure includes: a forming step of extruding a forming raw material to obtain a honeycomb formed body; a drying step of drying the honeycomb formed body to obtain a honeycomb dried body; and a firing step of firing the honeycomb dried body to obtain a honeycomb fired body. The forming step includes controlling a volume fraction of a portion that can form pores of the honeycomb formed body so that an absolute value of a difference in the volume fraction of the portion that can form the pores in predetermined regions of the honeycomb formed body relative to a previously set, predetermined porosity of the honeycomb fired body is within 0.5%. The predetermined porosity is a porosity preset for each of the predetermined regions of the honeycomb fired body.