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A drawing tower produces a fine glass filament by drawing a glass preform. The tip of the preform is heated to melting temperature and then a strand of molten material is pulled downward.^[1] Industrial drawing towers range in height from 30 to 45 meters. A drawing tower is used in the production of optical fiber, for example for fiber-optic communication cables. The preform is a multi-layered cylinder typically 20 cm in diameter, and 2 m long.^[2]

References

↑ Harvey, Clarissa M.; Mühlberger, Korbinian; Oriekhov, Taras; Maniewski, Pawel; Fokine, Michael (2021). "Specialty optical fiber fabrication: fiber draw tower based on a CO laser furnace". Journal of the Optical Society of America B. 38 (12): F122. Bibcode:2021JOSAB..38F.122H. doi:10.1364/JOSAB.437667. S2CID 240084874.
↑ "The optical fiber draw tower". Retrieved March 2, 2023.

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