Plastic and nonmetallic article shaping or treating: processes – Carbonizing to form article – Agglomeration or accretion
Patent
1983-04-13
1985-01-22
Parrish, John A.
Plastic and nonmetallic article shaping or treating: processes
Carbonizing to form article
Agglomeration or accretion
264 56, 264148, C04B 3324
Patent
active
044951183
ABSTRACT:
Large and thin ceramic plates of, particularly at least 30.times.30 cm in size and not greater than 20 mm especially not greater than 8 mm in thickness and having oriented crystals are produced by a method comprising drawing a green body from an extruder in a curved shape, cutting and spreading the green body in a plate form, rolling the plates in the same direction as that of drawing, subjecting the rolled plates to the treatment with far infrared rays or high-frequency heating before the plates contain a moisture reduced to less than 15% while the plates are transferred in the same direction as that of drawing, drying the plates thus treated while the plates are further transferred in the same direction, and then firing the plates in a kiln. The ceramic plates are large and thin but nevertheless easy to handle.
REFERENCES:
patent: 2143003 (1939-01-01), Gould
patent: 2454708 (1948-11-01), Middleton
patent: 3442994 (1969-05-01), Herbert
patent: 3487135 (1969-12-01), Harsler
patent: 3904352 (1975-09-01), Thurnauer
patent: 4183885 (1980-01-01), Marazzi
Nippon Chemiphar Co., Ltd.
Parrish John A.
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