Method of firing ceramic honeycomb structural bodies

Details Method of firing ceramic honeycomb structural bodies Method of firing ceramic honeycomb structural bodies

1998-08-20

1999-12-21

Fiorilla, Christopher A.

Plastic and nonmetallic article shaping or treating: processes

Outside of mold sintering or vitrifying of shaped inorganic...

Producing article having plural hollow channels

264630, B28B 2152

Patent

active

060045027

ABSTRACT:
A method of firing ceramic honeycomb structural bodies, in which cordierite raw materials including at least raw kaolin is extruded to obtain a honeycomb structural formed body and the thus obtained honeycomb structural formed body is fired. The method includes the step of firing a honeycomb structural body having a rib thickness of not more than 4.6 mil under such a condition that a temperature ascending rate during 400-600.degree. C. is maintained under 70.degree. C./hr. As a preferred embodiment, a temperature ascending rate during 400-600.degree. C. is defined as under 70.degree. C./hr in the case of manufacturing a honeycomb structural body having a rib thickness of 4.6-4.0 mil, or, a temperature ascending rate during 400-600.degree. C. is defined as under 40.degree. C./hr in the case of manufacturing a honeycomb structural body having a rib thickness of 3.9-2.0 mil.

REFERENCES:
patent: 3790654 (1974-02-01), Bagley
patent: 4959338 (1990-09-01), Miura et al.
patent: 5046946 (1991-09-01), Yasuda et al.
patent: 5262102 (1993-11-01), Wada
patent: 5725829 (1998-03-01), Miyahara et al.

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