JPS57208507A - Manufacture of pipe unit with high strength - Google Patents
Manufacture of pipe unit with high strengthInfo
- Publication number
- JPS57208507A JPS57208507A JP56092990A JP9299081A JPS57208507A JP S57208507 A JPS57208507 A JP S57208507A JP 56092990 A JP56092990 A JP 56092990A JP 9299081 A JP9299081 A JP 9299081A JP S57208507 A JPS57208507 A JP S57208507A
- Authority
- JP
- Japan
- Prior art keywords
- pipe
- fiber wires
- pipe unit
- wires
- bundle
- 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
- 238000004519 manufacturing process Methods 0.000 title 1
- 230000003247 decreasing effect Effects 0.000 abstract 2
- 238000010438 heat treatment Methods 0.000 abstract 2
- 239000013307 optical fiber Substances 0.000 abstract 2
- 238000001816 cooling Methods 0.000 abstract 1
- 239000000835 fiber Substances 0.000 abstract 1
- 238000004804 winding Methods 0.000 abstract 1
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4479—Manufacturing methods of optical cables
- G02B6/4486—Protective covering
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
Abstract
PURPOSE:To obtain reduced weight, a decreased diameter, and stabilized characteristics with regard to a pipe unit, by covering a bundle of fiber wires with a plastic pipe which has an increased Young's modulus and a decreased coefficient of linear expansion by being crystallized over orientation by dielectric heating and elongation. CONSTITUTION:Optical fiber wires 10 are uncoiled from feeding machines 11 and put together, and the bundle of wires is sheathed with a plastic pipe formed by an extruder 12 and a cross head 14. This pipe, after being cooled in a cooling vessel 15, is heated by a dielectric heating machine 21 and drawn at the same time by varying the speed ratio of a drawing roller 17 to obtain a pipe which has a high Young's modulus and a low coefficient of linear expansion, and the assembly of the optical fiber wires is covered with the pipe. This pipe unit is annealed and then wound around a winding machine 20 through a pulling machine 19.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56092990A JPS57208507A (en) | 1981-06-18 | 1981-06-18 | Manufacture of pipe unit with high strength |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56092990A JPS57208507A (en) | 1981-06-18 | 1981-06-18 | Manufacture of pipe unit with high strength |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS57208507A true JPS57208507A (en) | 1982-12-21 |
Family
ID=14069801
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56092990A Pending JPS57208507A (en) | 1981-06-18 | 1981-06-18 | Manufacture of pipe unit with high strength |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57208507A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109727728A (en) * | 2017-10-30 | 2019-05-07 | 罗森达尔耐科特洛姆有限公司 | Apparatus for cladding at least one conductor |
-
1981
- 1981-06-18 JP JP56092990A patent/JPS57208507A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109727728A (en) * | 2017-10-30 | 2019-05-07 | 罗森达尔耐科特洛姆有限公司 | Apparatus for cladding at least one conductor |
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