JPH0324421B2 - - Google Patents
Info
- Publication number
- JPH0324421B2 JPH0324421B2 JP27784985A JP27784985A JPH0324421B2 JP H0324421 B2 JPH0324421 B2 JP H0324421B2 JP 27784985 A JP27784985 A JP 27784985A JP 27784985 A JP27784985 A JP 27784985A JP H0324421 B2 JPH0324421 B2 JP H0324421B2
- Authority
- JP
- Japan
- Prior art keywords
- optical fiber
- base material
- fiber base
- cross
- inert gas
- 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.)
- Expired - Lifetime
Links
- 239000013307 optical fiber Substances 0.000 claims description 82
- 239000000463 material Substances 0.000 claims description 37
- 238000010438 heat treatment Methods 0.000 claims description 21
- 238000012681 fiber drawing Methods 0.000 claims description 15
- 238000002844 melting Methods 0.000 claims description 4
- 230000008018 melting Effects 0.000 claims description 4
- 239000011261 inert gas Substances 0.000 description 20
- 230000005855 radiation Effects 0.000 description 11
- 239000007789 gas Substances 0.000 description 9
- 230000005540 biological transmission Effects 0.000 description 5
- 239000011800 void material Substances 0.000 description 4
- 230000006698 induction Effects 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- 238000009987 spinning Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000002265 prevention Effects 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
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B2205/00—Fibre drawing or extruding details
- C03B2205/60—Optical fibre draw furnaces
- C03B2205/90—Manipulating the gas flow through the furnace other than by use of upper or lower seals, e.g. by modification of the core tube shape or by using baffles
- C03B2205/92—Manipulating the gas flow through the furnace other than by use of upper or lower seals, e.g. by modification of the core tube shape or by using baffles using means for gradually reducing the cross-section towards the outlet or around the preform draw end, e.g. tapered
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B2205/00—Fibre drawing or extruding details
- C03B2205/60—Optical fibre draw furnaces
- C03B2205/90—Manipulating the gas flow through the furnace other than by use of upper or lower seals, e.g. by modification of the core tube shape or by using baffles
- C03B2205/98—Manipulating the gas flow through the furnace other than by use of upper or lower seals, e.g. by modification of the core tube shape or by using baffles using annular gas inlet distributors
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)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27784985A JPS62138340A (ja) | 1985-12-12 | 1985-12-12 | 光フアイバ線引装置 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27784985A JPS62138340A (ja) | 1985-12-12 | 1985-12-12 | 光フアイバ線引装置 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62138340A JPS62138340A (ja) | 1987-06-22 |
| JPH0324421B2 true JPH0324421B2 (en]) | 1991-04-03 |
Family
ID=17589127
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP27784985A Granted JPS62138340A (ja) | 1985-12-12 | 1985-12-12 | 光フアイバ線引装置 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62138340A (en]) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE69421594T2 (de) * | 1993-07-13 | 2000-05-04 | Sumitomo Electric Industries, Ltd. | Ziehofen für optische fasern und ziehverfahren |
| JP6691881B2 (ja) * | 2017-03-01 | 2020-05-13 | 信越化学工業株式会社 | 線引き用光ファイバ母材の製造方法および製造装置 |
| CN110272202B (zh) | 2018-03-15 | 2023-03-07 | 康宁股份有限公司 | 收窄的马弗炉 |
-
1985
- 1985-12-12 JP JP27784985A patent/JPS62138340A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62138340A (ja) | 1987-06-22 |
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