公开(公告)号：US20190299487A1

公开(公告)日：2019-10-03

申请号：US16354759

申请日：2019-03-15

Applicant: NGK INSULATORS, LTD.

Inventor： Nobuhiro FUJIE ,  Yuji WATANABE ,  Ken ITADU ,  Yoshihiro SATO

IPC: B28B11/00 ,  F01N3/022

Abstract: A bottom face processing method of a pillar-shaped honeycomb structure including steps of: preparing a pillar-shaped honeycomb structure including a plurality of first cells which extend in parallel with each other from a first bottom face to a second bottom face, and each of which is opened in the first bottom face and has a protruding plugged portion in the second bottom face, and a plurality of second cells each of which is adjacent to at least one of the first cells with a partition wall interposed therebetween, which extend in parallel with each other from the first bottom face to the second bottom face, and each of which has a protruding plugged portion in the first bottom face, and is opened in the second bottom face; and removing the protruding portion from the plugged portion of each of the first cells and the second cells of the pillar-shaped honeycomb structure.

公开(公告)号：US20200255347A1

公开(公告)日：2020-08-13

申请号：US16774350

申请日：2020-01-28

Applicant: NGK INSULATORS, LTD.

Inventor： Ken ITADU ,  Nobuhiro FUJIE ,  Yuji WATANABE

IPC: C04B40/00 ,  B28B11/24 ,  B28B11/14

Abstract: A method for producing a honeycomb structure, the method including: a step of drying a pillar-shaped honeycomb formed body including partition walls that define a plurality of cells each forming a flow path penetrating from a first end face to a second end face; and after the step of drying, a step of cooling the honeycomb formed body by applying a suction force to the first end face of the honeycomb formed body to allow a coolant to flow in the honeycomb formed body from the second end face, pass through the cells, and flow out from the first end face.