Method for producing ceramic long body

Details Method for producing ceramic long body Method for producing ceramic long body

1995-01-12

1996-05-07

Fiorilla, Christopher A.

Plastic and nonmetallic article shaping or treating: processes

Pore forming in situ

By mechanically introducing gas into material

264 66, C04B 3500

Patent

active

055143130

ABSTRACT:
A method for producing a ceramic long body has the steps of: hanging a ceramic non-sintered body having a long shape inside a sheath so that said ceramic non-sintered body does not touch the sheath; firing the ceramic body at a temperature at which the ceramic body sinters until the sintering is completed to obtain a sintered ceramic body; hanging the sintered ceramic body upside down; and firing the sintered ceramic body again at a temperature at which the ceramic body sinters. The method gives a ceramic long body having little deformation, and the present invention can be suitably employed as a method for producing, for example, a heat transmitting tube a heat exchanger of a shell-and-tube type.

REFERENCES:
patent: 1513617 (1924-10-01), Litt
patent: 2912741 (1959-11-01), Bennett
patent: 2914834 (1959-12-01), Daniel
patent: 2948949 (1960-08-01), Schuffler et al.
patent: 3351690 (1967-11-01), Stover
patent: 4330496 (1982-05-01), Desplanches et al.
patent: 4731207 (1988-03-01), Matsumoto et al.
patent: 5064588 (1991-11-01), Misawa

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