Apparatus for producing glass filaments

Details Apparatus for producing glass filaments Apparatus for producing glass filaments

1991-04-04

1993-09-14

Lindsay, Robert L.

Glass manufacturing

Processes

With shaping of particulate material and subsequent fusing...

6537412, 420463, C03B 3702

Patent

active

052444830

ABSTRACT:
The apparatus includes a bushing, a cooling assembly, a sizing applicator, a glass filament gathering pad and a winder. A tip section of the bushing is provided with rows of tips having orifices from which streams of molten glass are attenuated into filaments. The tip section is recessed within an insulated frame that supports the bushing so that the insulated frame reflects heat back to the outer tip rows. The glass filaments are drawn from the bushing tips by the winder with the gathering pad functioning to gather the filaments together into a strand which is wound on the winder. Finned cooling tubes or a combination of finned cooling tubes and finless cooling tubes are located beneath the bushing in proximity to and between at least some of the rows of tips to maintain a more uniform temperature among the glass globules issuing from the tips in the various rows. The cooling tubes and fins are fabricated of an alloy having a major portion of palladium and a minor portion of ruthenium.

REFERENCES:
patent: 3219426 (1965-11-01), Steer
patent: 3392779 (1968-07-01), Tilbrook
patent: 3488172 (1970-01-01), Aliotta et al.
patent: 3647382 (1972-03-01), Tilbrook
patent: 4397665 (1983-08-01), Harris

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