JPS5659635A - Manufacturing apparatus for anhydrous quartz optical fiber base material - Google Patents
Manufacturing apparatus for anhydrous quartz optical fiber base materialInfo
- Publication number
- JPS5659635A JPS5659635A JP13404679A JP13404679A JPS5659635A JP S5659635 A JPS5659635 A JP S5659635A JP 13404679 A JP13404679 A JP 13404679A JP 13404679 A JP13404679 A JP 13404679A JP S5659635 A JPS5659635 A JP S5659635A
- Authority
- JP
- Japan
- Prior art keywords
- furnace
- temp
- base material
- optical fiber
- moisture
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B37/00—Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags
- C03B37/01—Manufacture of glass fibres or filaments
- C03B37/012—Manufacture of preforms for drawing fibres or filaments
- C03B37/014—Manufacture of preforms for drawing fibres or filaments made entirely or partially by chemical means, e.g. vapour phase deposition of bulk porous glass either by outside vapour deposition [OVD], or by outside vapour phase oxidation [OVPO] or by vapour axial deposition [VAD]
- C03B37/0148—Means for heating preforms during or immediately prior to deposition
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B37/00—Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags
- C03B37/01—Manufacture of glass fibres or filaments
- C03B37/012—Manufacture of preforms for drawing fibres or filaments
- C03B37/014—Manufacture of preforms for drawing fibres or filaments made entirely or partially by chemical means, e.g. vapour phase deposition of bulk porous glass either by outside vapour deposition [OVD], or by outside vapour phase oxidation [OVPO] or by vapour axial deposition [VAD]
- C03B37/01446—Thermal after-treatment of preforms, e.g. dehydrating, consolidating, sintering
- C03B37/0146—Furnaces therefor, e.g. muffle tubes, furnace linings
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Manufacture, Treatment Of Glass Fibers (AREA)
Abstract
PURPOSE:To provide an apparatus capable of easily manufacturing the titled base material while preventing the adsorption of moisture on a porous glass preform by installing a preheating furnace, between a dehydrating furnace and a transparently vitrifying furnace, set to a temp. between the temps. of the furnaces and placing the furnaces in a closed system. CONSTITUTION:In apparatus 1 for continuously manufacturing an anhydrous quartz optical fiber base material by a VAD method, preheating furnace 6 set to a temp. above the temp. of dehydrating furnace 5 and below the temp. of transparently vitrifying furnace 7 is installed between furnaces 5, 7, and apparatus 1 is placed in a closed system provided with no opening except gas inflow holes 15, 17, 21 and exhaust parts 16, 22. Because of the closed system moisture in the open air is not adsorbed on porous glass preform 3. Even if the atmospheric gas contains moisture, since the temp. of apparatus 1 is gradually raised from dehydrating furnace 5 to vitrifying furnace 7 through preheating furnace 6, the moisture is not adsorbed on preform 3. Thus, an anhydrous quartz optical fiber base material can be formed easily and surely.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13404679A JPS5915093B2 (en) | 1979-10-17 | 1979-10-17 | Manufacturing equipment for anhydrous silica optical fiber base material |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13404679A JPS5915093B2 (en) | 1979-10-17 | 1979-10-17 | Manufacturing equipment for anhydrous silica optical fiber base material |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5659635A true JPS5659635A (en) | 1981-05-23 |
JPS5915093B2 JPS5915093B2 (en) | 1984-04-07 |
Family
ID=15119091
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13404679A Expired JPS5915093B2 (en) | 1979-10-17 | 1979-10-17 | Manufacturing equipment for anhydrous silica optical fiber base material |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5915093B2 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5973443A (en) * | 1982-10-18 | 1984-04-25 | Sumitomo Electric Ind Ltd | Manufacture of glass proform for optical fiber |
JPS6046940A (en) * | 1983-08-22 | 1985-03-14 | Furukawa Electric Co Ltd:The | Preparation of parent material for optical glass and its device |
KR101261095B1 (en) * | 2004-03-29 | 2013-05-03 | 신에쓰 가가꾸 고교 가부시끼가이샤 | Fabrication Apparatus for Porous Glass Preform |
WO2020180466A1 (en) * | 2019-03-05 | 2020-09-10 | Corning Incorporated | System and methods for processing an optical fiber preform |
-
1979
- 1979-10-17 JP JP13404679A patent/JPS5915093B2/en not_active Expired
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5973443A (en) * | 1982-10-18 | 1984-04-25 | Sumitomo Electric Ind Ltd | Manufacture of glass proform for optical fiber |
JPS6219367B2 (en) * | 1982-10-18 | 1987-04-28 | Sumitomo Denki Kogyo Kk | |
JPS6046940A (en) * | 1983-08-22 | 1985-03-14 | Furukawa Electric Co Ltd:The | Preparation of parent material for optical glass and its device |
JPS6328855B2 (en) * | 1983-08-22 | 1988-06-10 | Furukawa Denki Kogyo Kk | |
KR101261095B1 (en) * | 2004-03-29 | 2013-05-03 | 신에쓰 가가꾸 고교 가부시끼가이샤 | Fabrication Apparatus for Porous Glass Preform |
WO2020180466A1 (en) * | 2019-03-05 | 2020-09-10 | Corning Incorporated | System and methods for processing an optical fiber preform |
US11713272B2 (en) | 2019-03-05 | 2023-08-01 | Corning Incorporated | System and methods for processing an optical fiber preform |
Also Published As
Publication number | Publication date |
---|---|
JPS5915093B2 (en) | 1984-04-07 |
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