Patent ID: 6843073
Filing Date: 2005-01-18
Classification: C03B,C03C

Abstract:
1. A method for ceramizing starting glass of glass-ceramics into glass-ceramics, comprising at least the following steps: heating the starting glass from an initial temperature T holding the glass at temperature T further heating the glass to a temperature T holding the glass for a period t controlling a temperature curve relating to the glass temperature with the help of a control loop comprising at least one temperature sensor for sensing the temperature and a heating unit as an actuator, wherein the heating unit comprises short-wave IR radiators that heat the glass to be relaxed with a thermal dead time of less than 10 secs. and the heating unit IR radiators are of a high color temperature >1,500° C., wherein the IR radiators of the heating unit comprise an IR radiation cavity defining a bordered space having at least one of reflective and backscattering boundary surfaces.