Method for improving the quality of flat glass formed on a bath

Details Method for improving the quality of flat glass formed on a bath Method for improving the quality of flat glass formed on a bath

1974-10-15

1976-05-04

Kellogg, Arthur D.

Glass manufacturing

Processes

Repairing or cleaning of apparatus; or batch dust prevention...

65 65A, 65 99A, C03B 1802

Patent

active

039544320

ABSTRACT:
A method for forming flat glass of high optical quality on a bath of molten tin, in which the glass has a relatively short residence time, is disclosed. The method involves adding an oxidizing agent to the hotter regions of the molten tin bath which is believed to modify the bottom or tin-contacting surface of the glass while the glass is on the bath of molten tin so as to be able to produce glass substantially free of top surface distortion, a problem which is particularly severe for glass having relatively short residence times on molten tin.

REFERENCES:
patent: 3330635 (1967-07-01), Loukes et al.
patent: 3607179 (1971-09-01), Loukes et al.

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