Method for draw forming glass fibers

Details Method for draw forming glass fibers Method for draw forming glass fibers

1977-08-16

1980-04-08

Lindsay, Jr., Robert L.

Glass manufacturing

Processes

Forming product or preform from molten glass

65 5, 65 12, C03B 3702

Patent

active

041971035

ABSTRACT:
An apparatus for draw forming glass filaments includes a melt furnace 1 having a bottom plate 12 with a plurality of flow holes therein, each terminating in a conical nozzle tip 2. Cooling fins 10 extend outwardly from a water pipe 11 and are disposed between the rows of tips, and additional cooling is provided at least during the initial start-up period by air blown across the nozzle tips from a manifold 13 disposed opposite the water pipe. With such an arrangement the flow hole diameters may be increased, which results in an exponential increase in the molten glass flow rate and filament production rate, while still achieving smooth initial and stable continuous filament forming conditions.

REFERENCES:
patent: 2908036 (1959-10-01), Russell
patent: 3404163 (1967-02-01), Holschlag
patent: 3695858 (1972-10-01), Russell
patent: 3905790 (1975-09-01), Strickland
patent: 3969099 (1976-07-01), Reese

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