Method for adjusting warp of chemically prestressed glass sheet and glass sheet produced according to the method

The object of the invention is to provide a method for adjusting a warp of a chemically prestressed glass sheet and the glass sheet produced according to the method. The glass sheet is a glass sheet easy to manufacture in the form of thin glass which has a very low warp. For this purpose a float gla...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: JOCHEN ALKEMPER, ULRICH FOTHERINGHAM, ARMIN VOGL, RUEDIGER DIETRICH, CLEMENS KUNISCH, OLIVER HOCHREIN, GERHARD LAUTENSCHLAEGER
Format: Patent
Sprache:chi ; eng
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Beschreibung
Zusammenfassung:The object of the invention is to provide a method for adjusting a warp of a chemically prestressed glass sheet and the glass sheet produced according to the method. The glass sheet is a glass sheet easy to manufacture in the form of thin glass which has a very low warp. For this purpose a float glass sheet (1) prepared by a chemically prestressed glass (2) is provided, wherein the glass sheet (1) has a sheet thickness of 0.25 mm to 1.5 mm, wherein the difference in fictive temperature of two planes (10, 11) in the glass (2) on the opposite side faces (4, 5) of the float glass sheet is less than 7 K, preferably less than 5 K, wherein the layers are each formed either by a side surface (4, 5) of the float glass sheet (1), or extending within a depth of 50 [mu] m below the surface of the side surface (4, 5) and parallel to the side surface (4, 5).