Eurokera

Saint-gobain Glass France

Saint Gobain Isover

Rémi Jacques

Laurent Joubaud

Pierre Jeanvoine

Gilles Querel

Biagio Palmieri

Stéphane Maugendre

Catherine Goulas

The invention relates to a process for manufacturing a flat ribbon of precursor glass for a glass-ceramic, comprising the continuous floating of the molten glass on a bath of molten metal in a float chamber, said glass being poured in the molten state at a temperature above its devitrification onset temperature onto the molten metal upstream of the chamber, said glass progressively forming a ribbon that runs along said metal bath, the cooling rate of the glass being at least 18&#xb0; C./min between, on the one hand, the moment when the glass is at the theoretical temperature for which the devitrification rate is a maximum and, on the other hand, the later moment when the glass is at the theoretical temperature at which the devitrification crystal growth rate becomes less than 1 micron per minute. The glass thus floated does not undergo any devitrification.

Float process for a glass-ceramic

Growing community of inventors

Estrees Saint Denis, France

Rémi Jacques