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1. (WO2018011148) METHOD AND DEVICE FOR MOLDING A GLASS WORKPIECE WITH MINIMAL LUBRICATION

Pub. No.:    WO/2018/011148    International Application No.:    PCT/EP2017/067288
Publication Date: Fri Jan 19 00:59:59 CET 2018 International Filing Date: Tue Jul 11 01:59:59 CEST 2017
IPC: C03B 40/027
C03B 23/09
Applicants: SCHOTT AG
Inventors: GLACKI, Alexander
KRUSE, Robert
MOSELER, Doris
WASCHBÜSCH, Michael
WITTE, Jörg
FROST, Robert
Title: METHOD AND DEVICE FOR MOLDING A GLASS WORKPIECE WITH MINIMAL LUBRICATION
Abstract:
The invention relates to a device for molding a workpiece made of glass, wherein minimal lubrication is used. For this purpose, the device has at least one device for heating the workpiece, a molding station with at least one molding tool for molding the workpiece, and at least one spray nozzle for applying an oil as a lubricant onto the surface of the molding tool. The molding tool has a heat dissipation such that the temperature on the contact surface of the molding tool during the molding process is kept below 300 °C. For each molding step and task, the oil quantity dispensed by the spray nozzle is less than 0.1 g.