JPS6414135U - - Google Patents
Info
- Publication number
- JPS6414135U JPS6414135U JP10601387U JP10601387U JPS6414135U JP S6414135 U JPS6414135 U JP S6414135U JP 10601387 U JP10601387 U JP 10601387U JP 10601387 U JP10601387 U JP 10601387U JP S6414135 U JPS6414135 U JP S6414135U
- Authority
- JP
- Japan
- Prior art keywords
- optical fiber
- heating
- heating furnace
- preform
- melting
- 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 10
- 239000013307 optical fiber Substances 0.000 claims description 8
- 230000008018 melting Effects 0.000 claims description 4
- 238000002844 melting Methods 0.000 claims description 4
- 238000012681 fiber drawing Methods 0.000 claims description 3
- 230000003287 optical effect Effects 0.000 claims 1
- 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
-
- 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
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
図面は本考案の一実施例を示す概略説明図であ
る。 １…光フアイバ線引加熱炉、２…加熱炉体、３
…炉心管、３ａ…テーパ縮径部、４…光フアイバ
プリフオーム、４ａ…加熱溶融部、５…光フアイ
バ、６…ガス供給口、７…配管、８…ヒータ、θ
…テーパ縮径部のテーパ角度。
る。 １…光フアイバ線引加熱炉、２…加熱炉体、３
…炉心管、３ａ…テーパ縮径部、４…光フアイバ
プリフオーム、４ａ…加熱溶融部、５…光フアイ
バ、６…ガス供給口、７…配管、８…ヒータ、θ
…テーパ縮径部のテーパ角度。
Claims (1)
- 加熱炉体と、加熱炉体に設けられ、光フアイバ
プリフオームを挿入案内すると共に、挿入された
光フアイバプリフオームを加熱溶融して光フアイ
バとして引き出せるように加熱される炉心管とを
備えた光フアイバ線引加熱炉において、前記炉心
管の、光フアイバプリフオームの加熱溶融部に対
応した部分に、前記プリフオームの加熱溶融部の
テーパ先細り形状に見合つた先細り形状のテーパ
縮径部を設けたことを特徴とする光フアイバ線引
加熱炉。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10601387U JPS6414135U (ja) | 1987-07-10 | 1987-07-10 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10601387U JPS6414135U (ja) | 1987-07-10 | 1987-07-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6414135U true JPS6414135U (ja) | 1989-01-25 |
Family
ID=31339146
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10601387U Pending JPS6414135U (ja) | 1987-07-10 | 1987-07-10 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6414135U (ja) |
-
1987
- 1987-07-10 JP JP10601387U patent/JPS6414135U/ja active Pending