Title:
【発明の名称】多孔質セラミックハニカム構造体の製法
Document Type and Number:
Japanese Patent JP2562186
Kind Code:
B2
Abstract:
A method of producing ceramic honeycomb structural bodies by firing extruded green bodies of ceramic raw material mixed with a pore forming agent is disclosed. As the pore forming agent, use is made of flammable carbon powder having a degree of loss in weight of 50% or more after a heat treatment at 650 DEG C for one hour in air. By using such a flammable carbon powder as the pore forming agent, a retention time at about 1000 DEG C for burning the pore forming agent in the firing process is shortened and as a result a firing time is shortened without deterioration of quality characteristics of resulting porous ceramic honeycomb structural bodies.
Inventors:
Kunikazu Hamaguchi
Harada Setsu
Toshiyuki Hamanaka
Kazuhiro Miyahara
Harada Setsu
Toshiyuki Hamanaka
Kazuhiro Miyahara
Application Number:
JP23508288A
Publication Date:
December 11, 1996
Filing Date:
September 21, 1988
Export Citation:
Assignee:
Nippon Insulator Co., Ltd.
International Classes:
C04B38/02; B01D39/20; B01D46/00; B01J37/00; C04B38/06; F01N3/022; F02B3/06; (IPC1-7): C04B38/06; C04B38/02
Attorney, Agent or Firm:
Akihide Sugimura (1 outside)