PROCESS AND APPARATUS FOR FORMING CURVED GLASS VIA DIFFERENTIAL HEATING OF GLASS SHEET

A process and system for forming a curved glass article from a sheet of glass material is provided. The process and system includes supporting a glass sheet on a shaping frame and then heating the sheet of glass material while supported by the shaping frame such that the central region of the sheet...

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Bibliographische Detailangaben
Hauptverfasser:	Jain, Anurag, Zheng, Zheming, Kladias, Nikolaos Pantelis
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMISTRY GLASS MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES METALLURGY MINERAL OR SLAG WOOL
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Beschreibung
Zusammenfassung:	A process and system for forming a curved glass article from a sheet of glass material is provided. The process and system includes supporting a glass sheet on a shaping frame and then heating the sheet of glass material while supported by the shaping frame such that the central region of the sheet of glass material deforms into an open central cavity of the bending frame. The process and/or system are configured such that an aspect of the heating experienced by an outer region of the sheet of glass material is less than an aspect of the heating experienced by the central region of the sheet of glass material. The aspect of heating may be the average temperature, the maximum temperature and/or the heating rate, which Applicant believes may reduce certain defects during the shaping operation.