Large sized quartz glass tube, large scale quartz glass preform,

Details Large sized quartz glass tube, large scale quartz glass preform, Large sized quartz glass tube, large scale quartz glass preform,

1996-09-17

1998-11-17

Dye, Rena

Stock material or miscellaneous articles

Hollow or container type article

Glass, ceramic, or sintered, fused, fired, or calcined metal...

428212, 428332, 428426, 4285428, 65385, 65412, 65429, 65433, C03B 37012

Patent

active

058373349

ABSTRACT:
A quartz glass tube, produced by mechanically processing a natural/synthetic quartz glass mother material, having 50-300 mm.phi. in outer diameter, from. 1 to 7 in outer to inner diameter ratio, 10 mm or more in thickness and 2% or less in thickness error; a large-scale quartz glass preform integrally combining the large-sized quartz glass tube with a core glass rod for an optical fiber using a rod-in-tube technique; and a method for manufacturing a large-scale quartz glass preform performing the mechanical processing with a high precision machine, i.e., integrating a core rod for an optical fiber under a rod in process with a quartz glass tube, a tube diameter of which is controlled by heating, hot drawing or hot drawing with pressure by using a tool-free drawing method.

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patent: 5106402 (1992-04-01), Geittner et al.
Application Technology of High-Purity Silica, CMC Co., Ltd., Mar. 1, 1991 pp. 103-106.
High Precision Machining, Kogyo Chosakai Publishing Co., Ltd., Aug. 30, 1984, p. 421.
Vapor-Phase Verneuil Method, General National Conference of Electronic Communication Society, 1977, pp. 4-96.

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