Method of making halide fibers including casting under a reduced

Details Method of making halide fibers including casting under a reduced Method of making halide fibers including casting under a reduced

1994-03-07

1995-03-28

Jones, W. Gary

Glass manufacturing

Processes of manufacturing fibers, filaments, or preforms

With measuring, controlling, sensing, programming, timing,...

65389, 65388, 65404, 651342, 65 325, 65 71, 65137, 65DIG16, C03B 1902, C03B 3707, C03B 37012

Patent

active

054012899

ABSTRACT:
Halide glass articles, e.g. rods, tubes and preforms for making fluoride glass fibres, are prepared by melting and/or casting the articles under a low pressure, e.g. 0.01 to 500 mbars and, during the low pressure regime, a gas flow rate of between 0.01 to 100 liters/min (measured at NTP) is maintained. It has been found that subjecting the melts to a low pressure reduces the attenuation of the fibre which eventually results from the melts.

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