METHOD FOR PRODUCING GLASS OR VITROCERAMICS AND ESPECIALLY GLASS OR VITROCERAMIC ARTICLES

摘要

The invention relates to a method for producing glass or vitroceramic materials having increased strength. For this purpose, the method for producing glass or vitroceramic articles comprises the following steps: producing an initial glass body (11), storing the initial glass body (11) on a gas cushion (13) between a levitation support (1) and the initial glass body (11), and at least partially ceramizing the initial glass body (11) on the levitation support (1). The levitation support comprises at least one continuous surface area (3) having at least one gas supply area (151, 152, 153) to which levitation gas destined for the gas cushion (13) is supplied, and at least one gas discharge area (171, 172, 173) where gas originating from the gas cushion (13) is at least partially carried off.