Patent ID: 6410887
Filing Date: 2002-06-25
Classification: C03B

Abstract:
A method for heating LowE glass panels in a tempering furnace (1) provided with rollers, said method comprising a transfer of LowE glass panels on a conveyor constituted by rollers (2) into the tempering furnace and then setting the discussed glass panels in an oscillating motion within the tempering furnace for the duration of a heating cycle, followed by delivering the discussed glass panels into a tempering station (3), and the glass panels being heated in the tempering furnace by means of top and bottom radiation heating elements (4, 5), as well as by top and bottom convection heating elements (6, 7), characterized in that in the early stage of a heating cycle the top glass surface is subjected to more powerful convection heating than the bottom surface, and in the final stage of a heating cycle the bottom glass surface is subjected to more powerful convection heating than the top surface.