Electric resistance bushing for melting inorganic materials

Glass manufacturing – Processes – Forming product or preform from molten glass

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13 6, 65 12, C03B 3702

Patent

active

040437787

ABSTRACT:
The present invention involves an electrical resistance heated bushing for melting inorganic materials, particularly glass, and for exuding molten material through a plurality of orifices in the bushing to form fibers suitable for coating with metal in conventional ways. The bushing of the present invention has an output capacity of almost 300% that of typical prior art bushings used for this purpose. Furthermore, the bushing of the present invention has increased operating efficiency substantially. The average running time before a breakout occurs has been extended 5 to 10 fold.

REFERENCES:
patent: 3065613 (1972-11-01), Von Wranaw
patent: 3068669 (1962-12-01), Fiedler
patent: 3573014 (1971-03-01), Strickland et al.
patent: 3607164 (1971-09-01), Thom et al.
The Manufacturing Technology of Continuous Glass Fibres, 1973, K L Loewenstein, Elsevier Scientific Pub. Co. pp. 97-110.

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