Method for rapid preparation of halide glasses

Details Method for rapid preparation of halide glasses Method for rapid preparation of halide glasses

1988-05-26

1989-10-10

Lindsay, Robert L.

Glass manufacturing

Processes

Forming product or preform from molten glass

65 2, 65134, 65DIG16, 501 37, 501 40, 501904, C03B 37018

Patent

active

048728942

ABSTRACT:
An improved method of rapidly forming halide glass wherein the heating and cooling schedule has two phases of heating and cooling. This improved method substantially limits the loss of volatile components because of the significantly shortened interval of time at the elevated melting temperatures. The average time under heating is about 80 minutes. Cooling is as rapid as possible. The homogenization occurs above 800.degree. C. for about 20 minutes.

REFERENCES:
patent: 4141741 (1979-02-01), Lucas et al.
patent: 4346176 (1982-08-01), Kanamori et al.
patent: 4445755 (1984-05-01), Ohsawa et al.
patent: 4539032 (1985-09-01), Tran et al.
patent: 4597786 (1986-07-01), Nakai et al.
patent: 4627865 (1986-12-01), Roba
patent: 4659352 (1987-04-01), Robinson
patent: 4666486 (1987-05-01), Hutta

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