Vacuum refining of glassy materials with selected foaming rate

Details Vacuum refining of glassy materials with selected foaming rate Vacuum refining of glassy materials with selected foaming rate

1989-01-03

1990-04-24

Woodard, Joye L.

Glass manufacturing

Processes

Fining or homogenizing molten glass

65135, 65136, C03B 5225

Patent

active

049196979

ABSTRACT:
In a method of vacuum refining molten glass or the like, sufficient concentrations of volatilizable substances are provided in the molten material. prior to entering the vacuum refiner so as to cause at least an eight-fold volume increase during foaming and thereby increase removal of gases from the molten material.

REFERENCES:
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patent: 4195982 (1980-04-01), Coucoulas et al.
patent: 4381934 (1983-05-01), Kunkle et al.
patent: 4738938 (1988-04-01), Kunkle et al.

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