JPH0287037U - - Google Patents
Info
- Publication number
- JPH0287037U JPH0287037U JP16676388U JP16676388U JPH0287037U JP H0287037 U JPH0287037 U JP H0287037U JP 16676388 U JP16676388 U JP 16676388U JP 16676388 U JP16676388 U JP 16676388U JP H0287037 U JPH0287037 U JP H0287037U
- Authority
- JP
- Japan
- Prior art keywords
- furnace
- core tube
- tube
- optical fiber
- preform
- 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
- 238000010438 heat treatment Methods 0.000 claims description 5
- 238000012681 fiber drawing Methods 0.000 claims description 3
- 239000013307 optical fiber Substances 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 1
- 239000000428 dust Substances 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)
- Glass Melting And Manufacturing (AREA)
- Manufacture, Treatment Of Glass Fibers (AREA)
Description
第１図は本考案の光フアイバ線引加熱炉の一例
を示す説明図、第２図は従来の加熱炉のダスト堆
積状態の説明図、第３図、第４図は従来の線引炉
の説明図である。
１は炉心管、２はプリフオーム、３は光フアイ
バ線引加熱炉、４は加熱部、５は内壁面、６はス
リーブ。
Fig. 1 is an explanatory diagram showing an example of an optical fiber drawing furnace of the present invention, Fig. 2 is an explanatory diagram of the state of dust accumulation in a conventional heating furnace, and Figs. 3 and 4 are illustrations of a conventional drawing furnace. It is an explanatory diagram. 1 is a furnace core tube, 2 is a preform, 3 is an optical fiber drawing and heating furnace, 4 is a heating section, 5 is an inner wall surface, and 6 is a sleeve.
Claims (1)
リフオーム２を加熱して線引きする光フアイバ線
引加熱炉３において、前記炉心管１のうち少なく
とも加熱部４より上の内壁面５に密着するスリー
ブ６を、炉心管１の上から着脱可能としたことを
特徴とする光フアイバ線引加熱炉。 In an optical fiber drawing heating furnace 3 in which a preform 2 is heated and drawn in a core tube 1 in which gas flows from the bottom to the top, a sleeve that is in close contact with an inner wall surface 5 above at least a heating section 4 of the core tube 1 is used. 6 is detachable from above the furnace tube 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988166763U JPH0748656Y2 (en) | 1988-12-26 | 1988-12-26 | Optical fiber drawing furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988166763U JPH0748656Y2 (en) | 1988-12-26 | 1988-12-26 | Optical fiber drawing furnace |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0287037U true JPH0287037U (en) | 1990-07-10 |
| JPH0748656Y2 JPH0748656Y2 (en) | 1995-11-08 |
Family
ID=31454437
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988166763U Expired - Lifetime JPH0748656Y2 (en) | 1988-12-26 | 1988-12-26 | Optical fiber drawing furnace |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0748656Y2 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61172335A (en) * | 1985-01-28 | 1986-08-04 | Mitsubishi Electric Corp | Plasma processor |
| JPS632738U (en) * | 1986-06-25 | 1988-01-09 |
-
1988
- 1988-12-26 JP JP1988166763U patent/JPH0748656Y2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61172335A (en) * | 1985-01-28 | 1986-08-04 | Mitsubishi Electric Corp | Plasma processor |
| JPS632738U (en) * | 1986-06-25 | 1988-01-09 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0748656Y2 (en) | 1995-11-08 |