Method for producing air-quench-toughened glass plate

Details Method for producing air-quench-toughened glass plate Method for producing air-quench-toughened glass plate

2007-05-08

2007-05-08

Lopez, Carlos (Department: 1731)

Glass manufacturing

Processes

With measuring, sensing, inspecting, indicating, or testing

C065S104000, C065S114000, C065S117000

Reexamination Certificate

active

10461754

ABSTRACT:
In a process for producing an air-quench-toughened glass plate, defective glass plates containing nickel sulfide (NiS) are removed by compulsory breaking the glass plates. Such compulsory breakage is carried out in the course of a batch-manner soaking process carried out after a toughening step; in the course of a toughening step carried out after generation of cracks in an annealing step; in the course of a toughening step carried out after generation of cracks in a pretreatment step; or in the course of a continuous annealing step carried out after a toughening step. Through the method, NiS-free toughened glass plates of high-quality can be produced.

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