Glass manufacturing – Processes – Forming product or preform from molten glass
Patent
1990-03-30
1991-05-21
Lindsay, Robert L.
Glass manufacturing
Processes
Forming product or preform from molten glass
6537412, C03B 37095
Patent
active
050172050
ABSTRACT:
A nozzle plate for spinning glass fiber including a flat plate portion and a multiplicity of nozzles projecting from the flat plate portion. Each of the nozzles comprises a greater diameter portion located at its flat plate portion side and a smaller diameter portion located at its tip side. The smaller diameter portion has an inner diameter of 0.3 mm to 1.0 mm and a length of 0.5 mm to 2.0 mm, and the greater diameter portion has an inner diameter of 1.1 mm to 2.5 mm, and the length of the nozzle projecting from the flat plate portion is in range of 4.0 mm to 6.0 mm. By use of this nozzle plate for spining glass fiber, a fine glass fiber having a diameter smaller than 3 .mu.m can be manufactured in a stable manner.
REFERENCES:
patent: 3514841 (1970-06-01), Woodward et al.
patent: 3526487 (1970-09-01), Bour
patent: 4121918 (1978-10-01), Shono et al.
Shioura Kozo
Taguchi Hideo
Lindsay Robert L.
Nitto Boseki Co. Ltd.
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