Glass manufacturing – Processes – Forming product or preform from molten glass
Patent
1976-09-20
1977-11-15
Lindsay, Jr., Robert L.
Glass manufacturing
Processes
Forming product or preform from molten glass
65 14, 264 8, 264 12, 425 7, 425 8, C03B 3704
Patent
active
040583864
ABSTRACT:
By controlling the design and operational parameters in accordance with particular relationships fibers having an average diameter of 7 microns or less can be formed by passing molten material through orifices in a peripheral wall of a rotor without using conventional hot gas blast attenuation externally of the rotor. The primary fibers are broken into finite lengths to produce staple fiber by a plurality of relatively cool and relatively low pressure air streams which are circumferentially spaced about the rotor and which flow in a direction transverse to the direction of travel of the primary fibers as they exit the orifices in the rotor. The rotors utilized in the perferred embodiment of the present invention have a peripheral wall with at least 40,000 orifices having diameters of about 18 mils or less. As one of the design parameters, orifice diameter, changes during the life of the rotor, operational parameters are adjusted to maintain the desired relationships between the various design and operational parameters.
REFERENCES:
patent: 3357807 (1967-12-01), Stalego
patent: 3485611 (1969-12-01), Blaze
patent: 3511306 (1970-05-01), Warkoczewski
patent: 3650716 (1972-03-01), Brossard
Faulkner Duane Harold
Howard Larry Edward
Smith Harvell Morton
Johns-Manville Corporation
Kelly Joseph J.
Krone Robert M.
Lindsay, Jr. Robert L.
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