Thermal toughening of glass

Details Thermal toughening of glass Thermal toughening of glass

1978-12-05

1980-06-03

Kellogg, Arthur D.

Glass manufacturing

Processes

Glass preform treating

65104, 65348, 65351, C03B 2700

Patent

active

042059763

ABSTRACT:
A glass sheet is thermally toughened by heating the sheet to a temperature near to its softening point and then lowering the sheet into a gas-fluidized bed of particulate material. A void region is established beneath the lower edge of the sheet as it is initially immersed in the fluidized bed.

REFERENCES:
patent: 3536464 (1970-10-01), Seymour
patent: 3706544 (1972-12-01), Michalik
patent: 4113458 (1978-09-01), Cross

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