Method for the forming of glass or glass ceramics

Details Method for the forming of glass or glass ceramics Method for the forming of glass or glass ceramics

2007-05-15

2007-05-15

Hug, Eric (Department: 1731)

Glass manufacturing

Processes

Reshaping or surface deformation of glass preform

C065S106000, C065S273000

Reexamination Certificate

active

10636717

ABSTRACT:
A process for forming glass or glass ceramics is disclosed, wherein a glass ceramics form (12) is made from a starting glass by molding, which is transformed by a heat treatment into a keatite glass ceramic comprising predominantly keatite mixed crystals. With such a keatite glass ceramics form (12) formed bodies can be prepared from blank parts by sagging under gravity force at a temperature above the glass transition temperature of the blank part (14) (FIG.1).

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