METHOD FOR BREAKING A GLASS SHEET

A glass breaking system is provided for breaking large sheets of glass (10) into small sheets. A protective coating (12) is applied to the glass sheet (10). A portion of the protective coating (12) is then selectively removed, preferably by a laser beam (17), so that a portion of the surface (11) of...

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Bibliographische Detailangaben
1. Verfasser:	STEVENS, HARRIE, JAMES
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUSENAMELS CHEMISTRY CLADDING OR PLATING BY SOLDERING OR WELDING CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING GLASS JOINING GLASS TO GLASS OR OTHER MATERIALS MACHINE TOOLS MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES METAL-WORKING NOT OTHERWISE PROVIDED FOR METALLURGY MINERAL OR SLAG WOOL PERFORMING OPERATIONS SOLDERING OR UNSOLDERING SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS,MINERALS OR SLAGS SURFACE TREATMENT OF GLASS TRANSPORTING WELDING WORKING BY LASER BEAM
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Beschreibung
Zusammenfassung:	A glass breaking system is provided for breaking large sheets of glass (10) into small sheets. A protective coating (12) is applied to the glass sheet (10). A portion of the protective coating (12) is then selectively removed, preferably by a laser beam (17), so that a portion of the surface (11) of the coated side (12) of the sheet (10) is exposed. The glass sheet (10) is then broken using laser separation techniques to break the glass sheet (10) in the exposed area (14). Un procédé de découpage du verre permet de découper de grandes plaques de verre (10) en petites plaques. Un revêtement protecteur (12) est appliqué sur la plaque de verre (10). Une partie de ce revêtement protecteur (12) est ensuite retirée sélectivement, de préférence par faisceau laser (17), de façon à exposer une partie de la surface (11) du côté recouvert (12) de la plaque (10). La plaque de verre (10) est ensuite découpée à l'aide de techniques de séparation au laser dans la zone exposée (14).