Process and device for ceramising the base glass of glass ceramics

US6710306B2 · kind B2 · utility

Assignee

• Schott Glas · DE

Inventors

• Gerhard Hahn · Allenfeld, DE
• Andreas Langsdorf · Ingelheim am Rhein, DE
• Ulrich Fotheringham · Wiesbaden, DE
• Hauke Esemann · Wörrstadt, DE
• Bernd Hoppe · Ingelheim am Rhein, DE
• Sybill Nüttgens · Frankfurt, DE

Key dates

• Filing date: Dec 13, 2001
• Grant date: Mar 23, 2004
• Expiry date: Jan 28, 2022

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02P40/57
• WIPO field: Other special machines
• WIPO sector: Mechanical engineering

Abstract

The present invention relates to a process for ceramising glass ceramics (so-called green glass).The process according to the present invention comprises the following procedural steps:green glass (3) is manufactured;the green glass is placed in a suspended state on a levitation substrate by supply of levitation gas;the green glass is heated in the suspended state by IR radiation until such time as the desired ceramising has set in.