Method of producing glazed ceramic building materials

Details Method of producing glazed ceramic building materials Method of producing glazed ceramic building materials

1976-09-07

1981-04-14

Parrish, John

Plastic and nonmetallic article shaping or treating: processes

Pore forming in situ

Of inorganic materials

106 40V, 264 60, 264122, 264221, C04B 3514

Patent

active

042619386

ABSTRACT:
A method of producing decorative cellular ceramic building materials in a single firing process from SiO.sub.2 -containing starting materials is disclosed according to which method at least the bottom of a refractory mold is covered with a first layer of a glass material or a glass forming composition which does not expand when heated and which has a melting point of 800.degree.-1200.degree. C., whereafter the SiO.sub.2 -containing starting material used for producing the cellular ceramic is applied in the form of a second layer on the first layer in the mold, whereafter the mold and its contents are heated to 800.degree.-1000.degree. C. for a period of time of such duration that the ceramic starting material and the glass material sinter together and the ceramic starting material obtains a porous structure.

REFERENCES:
patent: 2310432 (1943-02-01), Haux
patent: 3903343 (1975-09-01), Pfaff

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