Plastic and nonmetallic article shaping or treating: processes – Pore forming in situ – By mechanically introducing gas into material
Patent
1976-12-23
1980-01-15
White, R. F.
Plastic and nonmetallic article shaping or treating: processes
Pore forming in situ
By mechanically introducing gas into material
106 45, 264 62, 264 64, 264 66, C04B 3324
Patent
active
041838858
ABSTRACT:
A process for the production of tiles made of ceramic material and having substantially planar front and back faces, comprising the steps of advancing a raw tile based on "clay material", with the term having the meaning as set forth in the description, dried and covered on one face with the glaze, which is also dried, in a heat treatment chamber with both faces at least substantially exposed to direct transmission of heat by convection, the tile in the heat treatment chamber going through a first fast heating phase until it reaches a temperature slightly lower than maximum firing temperature, and through a successive firing phase during which it is kept at a range of temperatures between the final heating temperature and the maximum firing temperature, the tile finally being cooled.
REFERENCES:
patent: 2910760 (1959-11-01), Jackson
patent: 3651184 (1972-03-01), Everhart
Daner et al., "A Gas Fired Hearth Kiln for Fast Firing High Alumina Substrate".
Parrish John A.
White R. F.
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