JPS63199493U - - Google Patents
Info
- Publication number
- JPS63199493U JPS63199493U JP9079387U JP9079387U JPS63199493U JP S63199493 U JPS63199493 U JP S63199493U JP 9079387 U JP9079387 U JP 9079387U JP 9079387 U JP9079387 U JP 9079387U JP S63199493 U JPS63199493 U JP S63199493U
- Authority
- JP
- Japan
- Prior art keywords
- heating resistor
- current
- cylindrical body
- carrying heating
- varies
- 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
- 238000010438 heat treatment Methods 0.000 claims description 5
- WYTGDNHDOZPMIW-RCBQFDQVSA-N alstonine Natural products C1=CC2=C3C=CC=CC3=NC2=C2N1C[C@H]1[C@H](C)OC=C(C(=O)OC)[C@H]1C2 WYTGDNHDOZPMIW-RCBQFDQVSA-N 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012681 fiber drawing Methods 0.000 description 1
- 239000013307 optical fiber 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
-
- 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
- C03B2205/62—Heating means for drawing
- C03B2205/63—Ohmic resistance heaters, e.g. carbon or graphite resistance heaters
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)
- Resistance Heating (AREA)
Description
第１図は通電加熱抵抗体を用いた光フアイバ線
引炉の概略断面図、第２図Ａ，Ｂはそれぞれ第１
図の線引炉の温度分布とプリフオーム先端形状と
の関係を示す説明図、第３図及び第４図は本考案
に係る通電加熱抵抗体の斜視図及び第３図Ａ−Ａ
線断面図である。 １０……通電加熱抵抗体、１８……円筒体、２
０……肉厚、２０ａ，２０ｂ……大きい肉厚部分
及び小さい肉厚部分、２２……蛇行電路、２４…
…スリツト。
引炉の概略断面図、第２図Ａ，Ｂはそれぞれ第１
図の線引炉の温度分布とプリフオーム先端形状と
の関係を示す説明図、第３図及び第４図は本考案
に係る通電加熱抵抗体の斜視図及び第３図Ａ−Ａ
線断面図である。 １０……通電加熱抵抗体、１８……円筒体、２
０……肉厚、２０ａ，２０ｂ……大きい肉厚部分
及び小さい肉厚部分、２２……蛇行電路、２４…
…スリツト。
Claims (1)
- 電気抵抗材料から作られた円筒体から成る通電
加熱抵抗体において、前記円筒体は軸線方向に変
化する肉厚を有し、且つ蛇行電路が形成されるよ
うに軸線に平行な複数のスリツトを有することを
特徴とする通電加熱抵抗体。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9079387U JPS63199493U (ja) | 1987-06-15 | 1987-06-15 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9079387U JPS63199493U (ja) | 1987-06-15 | 1987-06-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63199493U true JPS63199493U (ja) | 1988-12-22 |
Family
ID=30950985
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9079387U Pending JPS63199493U (ja) | 1987-06-15 | 1987-06-15 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63199493U (ja) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03187937A (ja) * | 1989-12-18 | 1991-08-15 | Nippon Telegr & Teleph Corp <Ntt> | 光ファイバ加工用小型電気炉 |
-
1987
- 1987-06-15 JP JP9079387U patent/JPS63199493U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03187937A (ja) * | 1989-12-18 | 1991-08-15 | Nippon Telegr & Teleph Corp <Ntt> | 光ファイバ加工用小型電気炉 |