Schott Ag

Martin Kurz

Andreas Ortner

Olaf Claussen

Klaus-Peter Kurek

Thorsten Grahl

Martin Angermann

Brian MacKintosh

A method for producing ultra-thin glass sheets is provided that results in glass sheets with high edge strength. The method includes: hot forming a continuous glass ribbon with a glass thickness from molten glass; annealing the glass ribbon with an annealing rate chosen based on the glass thickness; producing a laser beam focus area that is longer than the glass thickness; introducing filamentary defects into the glass ribbon using the laser beam so that the filamentary defects extend from one face to the opposite face and are spaced apart from one another along the breaking lines to produce transverse breaking lines and longitudinal breaking lines with margins each comprising a thickened bead; separating the beads along the longitudinal breaking lines and separating glass sheets by severing along the transverse breaking lines.

Method for producing glass sheets and glass sheets produced by such method and use thereof

The invention relates to a holding device (), especially for fixing a glass substrate during a cutting process. The holding device comprises a housing () and a plunger () which can be axially displaced in relation to the housing (). The plunger has a first and a second end section (), the first end section () projecting from the housing () and having a suction element (). The aim of the invention is inter alia to improve a known holding device in such a manner that the substrate can be approached and fixed almost without the application of force. The holding device () according to the invention is characterized in that the plunger () is received in the housing () by a pneumatic spring. A holding system () comprising a plurality of holding devices () is protected in a support plate (), the support plate () having a vacuum channel collector () which is connected to vacuum channels () and which is connected to a common vacuum pump ().

Holding device for fixing a substrate

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Kronberg, Germany

Martin Kurz