Glass manufacturing – Processes – Forming product or preform from molten glass
Patent
1997-02-26
1999-09-07
Griffin, Steven P.
Glass manufacturing
Processes
Forming product or preform from molten glass
65 995, 65 996, 651824, C03B 1802, C03B 1804
Patent
active
059481331
ABSTRACT:
A method for holding an edge of a molten glass flow, comprising forming a molten glass flow by continuously feeding molten glass on a bath surface of molten metal contained in a vessel, holding an edge of the molten glass flow in a width direction thereof when advancing the molten glass flow to draw the molten glass flow in a glass ribbon having a target thickness, and controlling a flow of the molten metal so that a bath surface level in height of the molten metal in the vicinity of the edge of the molten glass flow is different from that of the molten metal in the vicinity of a central portion of the molten glass flow in the width direction thereof, whereby a force to spread or narrow the molten glass flow in the width direction is compensated so as to hold the edge of the molten glass flow at a predetermined position.
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Akagi Ryosuke
Iga Motoichi
Inoue Atsushi
Kamihori Toru
Asahi Glass Company Ltd.
Griffin Steven P.
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