JPH02142446U - - Google Patents
Info
- Publication number
- JPH02142446U JPH02142446U JP5283789U JP5283789U JPH02142446U JP H02142446 U JPH02142446 U JP H02142446U JP 5283789 U JP5283789 U JP 5283789U JP 5283789 U JP5283789 U JP 5283789U JP H02142446 U JPH02142446 U JP H02142446U
- Authority
- JP
- Japan
- Prior art keywords
- optical fiber
- preform
- core tube
- furnace
- heating body
- 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.)
- Pending
Links
- 239000013307 optical fiber Substances 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 4
- 238000012681 fiber drawing Methods 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 1
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
- C03B37/02—Manufacture of glass fibres or filaments by drawing or extruding, e.g. direct drawing of molten glass from nozzles; Cooling fins therefor
- C03B37/025—Manufacture of glass fibres or filaments by drawing or extruding, e.g. direct drawing of molten glass from nozzles; Cooling fins therefor from reheated softened tubes, rods, fibres or filaments, e.g. drawing fibres from preforms
- C03B37/029—Furnaces therefor
Landscapes
- Engineering & Computer Science (AREA)
- 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)
- Manufacture, Treatment Of Glass Fibers (AREA)
Description
第１図は本考案の光フアイバ線引き炉の一実施
例の断面図、第２図は本考案の構成で得られた炉
芯管内の温度分布と従来の装置で得られる温度分
布の比較図、を示す。
１……炉芯管、２……上部ケーシング、３……
下部ケーシング、４……ガス導入管、５……サポ
ート管、６……第１の加熱体、７……第２の加熱
体、８……プリフオーム、９……Ｏ−リング。
FIG. 1 is a cross-sectional view of an embodiment of the optical fiber drawing furnace of the present invention, and FIG. 2 is a comparison diagram of the temperature distribution in the furnace core tube obtained with the configuration of the present invention and the temperature distribution obtained with a conventional device. shows. 1... Furnace core tube, 2... Upper casing, 3...
Lower casing, 4... Gas introduction pipe, 5... Support pipe, 6... First heating element, 7... Second heating element, 8... Preform, 9... O-ring.
Claims (1)
前記炉芯管外部に加熱体を配設し、前記加熱体で
加熱し、前記光フアイバプリフオームを延伸する
光フアイバ線引き炉において、前記加熱体を各々
独立に温度制御できる複数個の帯状の加熱体とし
プリフオームの中心軸方向に沿つて直列に配設し
たことを特徴とする光フアイバ線引き炉。 An optical fiber preform is installed inside the furnace core tube,
In an optical fiber drawing furnace in which a heating body is disposed outside the furnace core tube, the heating body heats the optical fiber preform, and the optical fiber preform is drawn. An optical fiber drawing furnace characterized in that a preform is arranged in series along the central axis direction of the preform.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5283789U JPH02142446U (en) | 1989-05-08 | 1989-05-08 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5283789U JPH02142446U (en) | 1989-05-08 | 1989-05-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02142446U true JPH02142446U (en) | 1990-12-03 |
Family
ID=31573487
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5283789U Pending JPH02142446U (en) | 1989-05-08 | 1989-05-08 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02142446U (en) |
-
1989
- 1989-05-08 JP JP5283789U patent/JPH02142446U/ja active Pending