Glass melting tank with temperature control and method of meltin

Glass manufacturing – Processes – Fining or homogenizing molten glass

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Details

65 99A, 65182R, 65339, 65346, 65347, C03B 522

Patent

active

040825280

ABSTRACT:
In the refining zone of a glass melting tank the molten glass is supported on a heat conducting base, such as molten tin, heat is removed from the glass through the base and the depth of glass, length of refining zone and temperature difference between the inlet and outlet of the zone are controlled so that the ratio of return flow to forward flow through the zone is between 1/6th and 1/2.

REFERENCES:
patent: 3231351 (1966-01-01), Brichard
patent: 3836349 (1974-09-01), Knavish
patent: 3884665 (1975-05-01), Edge et al.
patent: 3930826 (1976-01-01), Schornhorst

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