Method for drying ceramic compact

Details Method for drying ceramic compact Method for drying ceramic compact

1995-02-13

1996-05-07

Kwon, John T.

Drying and gas or vapor contact with solids

Process

Gas or vapor contact with treated material

34557, F26B 300

Patent

active

055134475

ABSTRACT:
A method for drying a ceramic compact includes: maintaining a ceramic compact containing a gelable binder in a condition having a humidity of 70% or higher and having a temperature the same as or higher than a gelating temperature of the gelable binder for a predetermined period of time; and vaporizing water in the ceramic compact. According to the drying method, gelable binder gelates before water is vaporized in a compact, and thereby the compact hardly deforms in accordance with drying shrinkage. Further, the drying method gives uniform drying to the compact in comparison with the conventional hot-air drying. Therefore, use of the compact produced by the drying method significantly reduces deformation, which results from nonuniformity of drying, during the firing process, and a fired body having excellent preciseness in configuration is obtained.

REFERENCES:
patent: 3972128 (1976-08-01), Vanicek
patent: 4253243 (1981-03-01), Whelan
patent: 4272894 (1981-06-01), Salviati
patent: 4808365 (1989-02-01), Kellner et al.
patent: 5347727 (1994-09-01), Kim

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