CN105353483A - Full-dry nonmetal optical cable - Google Patents
Full-dry nonmetal optical cable Download PDFInfo
- Publication number
- CN105353483A CN105353483A CN201510937222.0A CN201510937222A CN105353483A CN 105353483 A CN105353483 A CN 105353483A CN 201510937222 A CN201510937222 A CN 201510937222A CN 105353483 A CN105353483 A CN 105353483A
- Authority
- CN
- China
- Prior art keywords
- optical fiber
- dry type
- type non
- optical cable
- waterproof
- 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
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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
- G02B6/4401—Optical cables
- G02B6/4429—Means specially adapted for strengthening or protecting the cables
- G02B6/44384—Means specially adapted for strengthening or protecting the cables the means comprising water blocking or hydrophobic materials
-
- 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
- G02B6/4401—Optical cables
- G02B6/4429—Means specially adapted for strengthening or protecting the cables
- G02B6/443—Protective covering
- G02B6/4432—Protective covering with fibre reinforcements
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Ropes Or Cables (AREA)
Abstract
The invention discloses a full-dry nonmetal optical cable in which waterproof substances are not filled. Particularly, a waterproof optical fiber is formed by coating the periphery of the optical fiber inside the optical cable with a waterproof layer, wherein the thickness of the waterproof layer is 10-50 micrometers. According to the optical cable, the environment cannot be polluted during the production and use of the optical cable, an environment-friendly effect is achieved, and meanwhile, the waterproof performance of the optical cable can be guaranteed.
Description
Technical field
The present invention is specifically related to a kind of dry type non-metallic optical fiber cables.
Background technology
Full-dry optical cable is a kind of optical cable free from environmental pollution, and people to environmental protection consciousness more and more stronger today, Full-dry optical cable has good prospect.General optical cable puts into fine cream, cable cream in order to the needs that block water, but fine cream, cable cream can to environments when continuing.Therefore the Full-dry optical cable after improving, is putting into water blocking yarn with during optical fiber contact, put into waterstop when making sheath, but is also chemical substance inside water blocking yarn and waterstop, also can have certain pollution to environment.
Summary of the invention
The object of the invention is, in order to solve the defect existed in prior art, to provide a kind of dry type non-metallic optical fiber cables of environmentally safe.
In order to achieve the above object, the invention provides a kind of Full-dry optical cable not adding fine cream, cable cream, water blocking yarn, waterstop, especially by by the optical fiber periphery coating water barrier in optical cable, form waterproof optical fiber; Wherein the thickness of water barrier is 10 ~ 50 μm.
Above-mentioned water barrier adopts liquid nylon; The relative viscosity of liquid nylon 25 DEG C time is 3100 ~ 3900cps, and density when refractive index when 23 DEG C is 1.50 ~ 1.52,23 DEG C is 1.11kg/L.
The diameter of waterproof optical fiber is 220 ~ 400 μm.
Wherein, water barrier is prepared by coating processes, is coated in optical fiber surface especially by tinting machine; Tinting machine is 0.4bar ~ 1.0bar for the pressure of waterproof layer material, and speed of production is 500 ~ 800m/min.
Dry type non-metallic optical fiber cables of the present invention is by Loose tube, FRP central reinforce member, sheath, aramid yarn, outer jacket and above-mentioned waterproof optical fiber; FRP central reinforce member and multiple Loose tube is provided with in sheath; Many waterproof optical fibers are provided with in each Loose tube; Multiple Loose tube is centered around central reinforce member periphery; Aramid yarn and outer jacket are located at sheath periphery from the inside to the outside successively.
Optical cable of the present invention, in cabling process, is blown into inert gas from extruder head fiber entrance, and the pressure of inert gas is 2.0bar ~ 4.0bar.Inert gas adopts carbon dioxide or nitrogen.
The present invention has the following advantages compared to existing technology: by applying water barrier to optical fiber surface, substitute the water proofing property filling material (as fine cream, cable cream, water blocking yarn, waterstop) of optical cable inside, ensure that the water resistance of optical cable, not polluting the environment when producing and use simultaneously, environmental protection more.Water barrier adopts liquid nylon material, and due to Loose tube and the outer jacket employing LSZH material of optical cable, differ about 50 DEG C with the processing temperature of liquid nylon, adding man-hour can not adhesion.The fine cream that optical cable of the present invention is removed in Loose tube adds, and optical fiber is in the state of unclasping in Loose tube, has certain remaining length, can ensure the mechanical property of optical cable like this, the maximum pull value that realistic construction can bear; And inert gas is blown in cabling process, ensured the roundness of Loose tube by inert gas pressure, thus ensure the optical cable physical dimension after stranding, to reach the performance requirement of optical cable.
Accompanying drawing explanation
Fig. 1 is the structural representation of dry type non-metallic optical fiber cables of the present invention.
In figure, 1-waterproof optical fiber, 2-Loose tube, 3-FRP central reinforce member, 4-sheath, 5-aramid yarn, 6-outer jacket.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in detail.
As shown in Figure 1, dry type non-metallic optical fiber cables of the present invention comprises waterproof optical fiber 1, Loose tube 2, FRP central reinforce member 3, sheath 4, aramid yarn 5 and outer jacket 6.Waterproof optical fiber 1 is coated with the liquid nylon of one deck by tinting machine outward to existing 230 μm of optical fiber, the modification PA11 that liquid nylon adopts the U.S. plastics Science and Technology Ltd. of Poly to produce, tinting machine is 0.4bar ~ 1.0bar for the pressure of waterproof layer material, speed of production is 500 ~ 800m/min, finally carries out infrared heating solidification (utilizing the heat solidification waterproof material lighting rear generation in UV lamp).FRP central reinforce member 3 and multiple Loose tube 2 is provided with in sheath 4.Many waterproof optical fibers 1 are provided with in each Loose tube 2; Multiple pine cover 2 circumferences of cannon bone are around central reinforce member 3 periphery; Aramid yarn 5 and outer jacket 6 are located at sheath periphery from the inside to the outside successively.
Full-dry optical cable of the present invention, for ensureing the physical dimension of optical cable, reality can be blown as CO from head fiber entrance in cabling process
2or N
2, make in Loose tube, there is certain pressure, ensure the roundness of loosely sleeve pipe, also can ensure that optical fiber no longer can not adhere to Loose tube wall in extrusion process simultaneously, ensure optical property and the mechanical property of optical fiber.
Full-dry optical cable of the present invention, mainly uses waterproof optical fiber, therefore design does not increase any filling material in optical cable inside, even if optical cable is intake because of carelessness, does not also affect use.Adopt the production method of improvement simultaneously, ensure that the performance of optical cable meets environmental performance and mechanical property.
Claims (7)
1. a dry type non-metallic optical fiber cables, is characterized in that: described optical cable inner fiber periphery is coated with water barrier, forms waterproof optical fiber; The thickness of described water barrier is 10 ~ 50 μm.
2. dry type non-metallic optical fiber cables according to claim 1, is characterized in that: described water barrier adopts liquid nylon; The relative viscosity of described liquid nylon 25 DEG C time is 3100 ~ 3900cps, and density when refractive index when 23 DEG C is 1.50 ~ 1.52,23 DEG C is 1.11kg/L.
3. dry type non-metallic optical fiber cables according to claim 1, is characterized in that: the diameter of described waterproof optical fiber is 220 ~ 400 μm.
4. the arbitrary described dry type non-metallic optical fiber cables of claims 1 to 3, is characterized in that: described water barrier is prepared by coating processes.
5. dry type non-metallic optical fiber cables according to claim 4, is characterized in that: described water barrier is coated in optical fiber surface by tinting machine; Described tinting machine is 0.4 ~ 1.0bar for the pressure of waterproof layer material, and speed of production is 500 ~ 800m/min.
6. dry type non-metallic optical fiber cables according to claim 1 and 2, is characterized in that: described optical cable is made up of Loose tube, FRP central reinforce member, sheath, aramid yarn, outer jacket and described waterproof optical fiber; Described FRP central reinforce member and multiple Loose tube is provided with in described sheath; Many described waterproof optical fibers are provided with in each Loose tube; Described multiple Loose tube is centered around described central reinforce member periphery; Described aramid yarn and outer jacket are located at described sheath periphery from the inside to the outside successively.
7. dry type non-metallic optical fiber cables according to claim 6, is characterized in that: optical cable, in cabling process, is blown into inert gas from extruder head fiber entrance, and the pressure of inert gas is 2.0bar ~ 4.0bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510937222.0A CN105353483A (en) | 2015-12-16 | 2015-12-16 | Full-dry nonmetal optical cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510937222.0A CN105353483A (en) | 2015-12-16 | 2015-12-16 | Full-dry nonmetal optical cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105353483A true CN105353483A (en) | 2016-02-24 |
Family
ID=55329478
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510937222.0A Pending CN105353483A (en) | 2015-12-16 | 2015-12-16 | Full-dry nonmetal optical cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105353483A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110727070A (en) * | 2019-10-24 | 2020-01-24 | 江苏华脉光电科技有限公司 | Full-dry type nonmetal fire-resistant optical cable |
| CN113820806A (en) * | 2021-09-10 | 2021-12-21 | 南京华信藤仓光通信有限公司 | Miniature disc-shaped optical cable and manufacturing method thereof |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4936651A (en) * | 1986-11-17 | 1990-06-26 | Ems -Inventa Ag | Extrudable composition and products made therewith |
| JP2002236238A (en) * | 2001-02-08 | 2002-08-23 | Furukawa Electric Co Ltd:The | Coated optical fiber |
| CN1826546A (en) * | 2003-07-18 | 2006-08-30 | 康宁股份有限公司 | Optical fiber coating system and coated optical fiber |
| US20100080521A1 (en) * | 2008-09-26 | 2010-04-01 | Ofs Fitel, Llc | Optical fiber with water-blocking |
| CN202771072U (en) * | 2012-08-23 | 2013-03-06 | 广东亨通光电科技有限公司 | Butterfly-shaped indoor leading-in optical cable |
| CN103487906A (en) * | 2013-09-27 | 2014-01-01 | 江苏亨通光电股份有限公司 | Manufacturing method of small-sized multi-core full-dry-type introduced optical cable |
| CN104238005A (en) * | 2014-10-05 | 2014-12-24 | 夏建明 | Waterproof optical fiber and optical cable utilizing same |
-
2015
- 2015-12-16 CN CN201510937222.0A patent/CN105353483A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4936651A (en) * | 1986-11-17 | 1990-06-26 | Ems -Inventa Ag | Extrudable composition and products made therewith |
| JP2002236238A (en) * | 2001-02-08 | 2002-08-23 | Furukawa Electric Co Ltd:The | Coated optical fiber |
| CN1826546A (en) * | 2003-07-18 | 2006-08-30 | 康宁股份有限公司 | Optical fiber coating system and coated optical fiber |
| US20100080521A1 (en) * | 2008-09-26 | 2010-04-01 | Ofs Fitel, Llc | Optical fiber with water-blocking |
| CN202771072U (en) * | 2012-08-23 | 2013-03-06 | 广东亨通光电科技有限公司 | Butterfly-shaped indoor leading-in optical cable |
| CN103487906A (en) * | 2013-09-27 | 2014-01-01 | 江苏亨通光电股份有限公司 | Manufacturing method of small-sized multi-core full-dry-type introduced optical cable |
| CN104238005A (en) * | 2014-10-05 | 2014-12-24 | 夏建明 | Waterproof optical fiber and optical cable utilizing same |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110727070A (en) * | 2019-10-24 | 2020-01-24 | 江苏华脉光电科技有限公司 | Full-dry type nonmetal fire-resistant optical cable |
| CN113820806A (en) * | 2021-09-10 | 2021-12-21 | 南京华信藤仓光通信有限公司 | Miniature disc-shaped optical cable and manufacturing method thereof |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160224 |
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| RJ01 | Rejection of invention patent application after publication |