Thermal treatment of glass

Details Thermal treatment of glass Thermal treatment of glass

1981-07-21

1983-02-08

Kellogg, Arthur D.

Glass manufacturing

Processes

Glass preform treating

65104, 65111, 65116, 16510416, C03B 2700

Patent

active

043727743

ABSTRACT:
The thermal treatment of glass is effected by contacting the glass, when it is hot, with a gas-fluidized mixture of particulate materials, at least one of which is selected to have gas-generating properties when heated by the hot glass. The materials are mixed in selected pre-determined proportions which impart to the mixture a thermal capacity and flowability which are such that a required thermal treatment is achieved.
The method is particularly suitable for the thermal toughening of glass sheets for vehicle windscreens.

REFERENCES:
patent: 3075580 (1963-01-01), Davis, Jr.
patent: 4113458 (1978-09-01), Cross
patent: 4120681 (1978-10-01), Cross et al.
patent: 4300936 (1981-11-01), Quillevere et al.
"Annealing and Fluidized-Bed Quenching of Nimonic-Alloy Sheets", I. Astley et al., Sheet Metal Industries, Sep. 62, pp. 601-608.

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