Glass melting tanks and refractory material therefor

Details Glass melting tanks and refractory material therefor Glass melting tanks and refractory material therefor

1987-10-29

1988-08-16

Lindsay, Robert L.

Glass manufacturing

Gathering or drawing pool type furnace

Separate and distinct means defining pool

65346, 6537413, 501107, C03B 5225

Patent

active

047641983

ABSTRACT:
The glass melting tank for supplying a flat glass forming process has a melting zone for melting solid batch material and a refining zone with reduced return flow of glass. The base of the refining zone comprises a fusion cast refractory material comprising alumina, silica and between 31% and 43% by weight of zirconia. The refractory is conditioned by oxidation at at least 1450.degree. C. for 24 hours.

REFERENCES:
patent: 2068925 (1937-01-01), Muholland
patent: 2675323 (1954-04-01), Busby et al.
patent: 2928212 (1960-03-01), Long
patent: 3245830 (1966-04-01), Flexon et al.
patent: 3249449 (1966-05-01), Kiehl et al.
patent: 3437499 (1969-04-01), Horak et al.
patent: 4494974 (1985-01-01), Vilk et al.

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