Glass manufacturing – Processes – Fining or homogenizing molten glass
Patent
1987-01-02
1988-05-17
Kellogg, Arthur
Glass manufacturing
Processes
Fining or homogenizing molten glass
65 993, 65178, 65179, 651823, 651825, C03B 5187
Patent
active
047448091
ABSTRACT:
Stirring of glass of high optical quality is effected by initiating forming of the glass, such as by the float process, at relatively high temperatures immediately after the glass has been stirred. Preferably, during and/or following the stirring operation contact between the molten glass and ceramic refractories is minimized. This is preferably accomplished by providing a layer of molton metal (e.g., tin) on the bottom of the stirring chamber.
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Gulotta Joseph A.
Pecoraro George A.
Kellogg Arthur
Millman Dennis G.
PPG Industries Inc.
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