IMPROVEMENTS IN OR RELATING TO GLASS MELTING TANKS AND TO REFRACTORY MATERIALS FOR USE THEREIN

IMPROVEMENTS IN OR RELATING TO GLASS MELTING TANKS AND TO REFRACTORY MATERIALS FOR USE THEREIN

The glass melting tank for supplying a flat glass forming process has a melting zone (12) for melting solid batch material (20) and a refining zone (13) with reduced return flow of glass. The base of the refining zone (13) comprises a fusion cast refractory material (30) comprising alumina, silica a...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser: LYTHGOE, STANLEY
Format: Patent
Sprache:eng
Schlagworte:
ARTIFICIAL STONE
CEMENTS
CERAMICS
CHEMISTRY
COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS
CONCRETE
GLASS
LIME, MAGNESIA
MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
METALLURGY
MINERAL OR SLAG WOOL
REFRACTORIES
SLAG
TREATMENT OF NATURAL STONE
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Beschreibung
Zusammenfassung:The glass melting tank for supplying a flat glass forming process has a melting zone (12) for melting solid batch material (20) and a refining zone (13) with reduced return flow of glass. The base of the refining zone (13) comprises a fusion cast refractory material (30) comprising alumina, silica and between 31 % and 43% by weight of zirconia. The refractory is conditioned by oxidation at at least 1450° C for 24 hours.