Method of, and apparatus for drying shaped ceramic bodies

Details Method of, and apparatus for drying shaped ceramic bodies Method of, and apparatus for drying shaped ceramic bodies

1998-03-26

1999-09-07

Bennett, Henry

Drying and gas or vapor contact with solids

Material treated by electromagnetic energy

Infrared energy

34269, F26B 1500

Patent

active

059468173

ABSTRACT:
Method and apparatus for quickly drying shaped ceramic bodies (3) having a complex surface (3a, 4a) with enriched unevenness, and a simple surface (3b, 4b) which is less uneven as compared to the complex surface (3a, 4a), without causing drying cracks and within a shortened time. The shaped ceramic body (3) within a drying chamber (1) is primarily heated from the simple surface (3b, 4b) by a main infrared heater (6), which is arranged on the simple surface side. Preferably, the ceramic body (3) is also heated by an auxiliary infrared heater (7) of a relatively low temperature, which is arranged on the side of the complex surface (3a, 4a), or dried while admitting a hot air into the drying chamber (1) with a low speed.

REFERENCES:
patent: 4439929 (1984-04-01), Kitagawa et al.
patent: 4665626 (1987-05-01), Berkamann et al.
patent: 4857245 (1989-08-01), Oshima et al.
patent: 5319861 (1994-06-01), Tate
patent: 5472720 (1995-12-01), Rakhimov et al.
Wu, Changji, et al., Drying Method for Ceramic Green Bodies, vol. 108, No. 14, Apr. 1988, p. 334.

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