DISCRETE GLASS CUTTING AND EDGE SHAPING

Glass shapes and sheets are cut directly from a heated glass ribbon while maintaining the optical quality of the cut glass. A float glass ribbon is removed from a glass forming chamber and prior to annealing, a line of cut is heated to its softening temperature. A blade arrangement thereafter penetr...

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Bibliographic Details
Main Author MOULY RAYMOND J
Format Patent
LanguageEnglish
Korean
Published 07.12.1991
Edition5
Subjects
CHEMISTRY
GLASS
MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
METALLURGY
MINERAL OR SLAG WOOL
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Summary:Glass shapes and sheets are cut directly from a heated glass ribbon while maintaining the optical quality of the cut glass. A float glass ribbon is removed from a glass forming chamber and prior to annealing, a line of cut is heated to its softening temperature. A blade arrangement thereafter penetrates the glass along the heated line of cut to sever the glass. The cut glass edge is shaped after cutting while the edge is still at the softening temperature. During the line heating and cutting operation, the overall glass temperature is maintained above the strain point of the glass.
Bibliography:Application Number: KR19880017242