Precision glass roll forming process and apparatus

A process and apparatus for precision glass roll forming a supply of molten glass at a glass temperature of 1000° C. or higher. A pair of hot forming rolls having a surface temperature of about 500° C. or higher, vertically below the glass feed, that thin the supplied stream of molten glass to produ...

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Main Authors LAKOTA, ALEXANDER, LOCK, WILLIAM EDWARD, SCHULTES, JOEL ANDREW, THOMAS, JOHN CHRISTOPHER
Format Patent
LanguageChinese
English
Published 11.07.2017
Subjects
CHEMISTRY
GLASS
MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
METALLURGY
MINERAL OR SLAG WOOL
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Summary:A process and apparatus for precision glass roll forming a supply of molten glass at a glass temperature of 1000° C. or higher. A pair of hot forming rolls having a surface temperature of about 500° C. or higher, vertically below the glass feed, that thin the supplied stream of molten glass to produce a formed glass ribbon. A pair of cold sizing rolls maintained at a surface temperature of about 400° C. or lower, vertically below the forming rolls, that thin the formed glass ribbon glass to produce a sized glass ribbon having a desired thickness and a desired thickness uniformity. The sized glass ribbon may have a thickness of 1 mm or less that varies in thickness by no more than +/−0.025 mm.
Bibliography:Application Number: TW20121119579