Process for quenching glass sheets with a cryogenic liquid and p

Details Process for quenching glass sheets with a cryogenic liquid and p Process for quenching glass sheets with a cryogenic liquid and p

1998-07-31

1999-08-03

Griffin, Steven P.

Glass manufacturing

Processes

Glass preform treating

65115, 65119, 65348, 65351, C03B 2702, C03B 2704

Patent

active

059319810

ABSTRACT:
A process for quenching heated glass sheets is performed by locating a glass sheet between a pair of spaced quench units (28) and directing from first and second arrays of nozzles (34, 64) cryogenic flows (36) interspersed with pressurized air flows (66) so as to cooperate with each other in providing the quenching. In one practice the interspersed cryogenic flows (36) and the pressurized air flows (66) are provided at the same time as each other. In another practice, the interspersed cryogenic flows (36) and pressurized air flows (66) are provided at different times.

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Introduction to Ceramics by Kingery et al., pp. 830-831, 1976.

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