CN105549168A - Military field operation optical cables and manufacture method thereof - Google Patents
Military field operation optical cables and manufacture method thereof Download PDFInfo
- Publication number
- CN105549168A CN105549168A CN201610064609.4A CN201610064609A CN105549168A CN 105549168 A CN105549168 A CN 105549168A CN 201610064609 A CN201610064609 A CN 201610064609A CN 105549168 A CN105549168 A CN 105549168A
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- Prior art keywords
- aramid
- cable
- reinforcing element
- field operation
- optical fiber
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Classifications
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- 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
-
- 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
-
- 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
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The present invention discloses a military field operation optical cables and a manufacture method thereof, and relates to the field of optical communication cables. The optical cable comprises an optical cable sheath, an aramid fiber reinforcement element, a nylon tight buffered layer and a coating optical fiber which are arranged in order from outside to inside. The aramid fiber reinforcement element is composed of multi-strand aramid yarns; and partial aramid yarns of the aramid fiber reinforcement element are embedded into the optical cable sheath to form a mixed reinforcement layer at the junction of the optical cable sheath and the aramid fiber reinforcement element so as to ensure the optical fibers do not generate obvious additional attenuation and are able to get back into shape when the optical cable sheath and the aramid fiber reinforcement element undergo pulling force and pressure at the same time. Through adoption of an extrusion tool and temperature and vacuum-pumping technologies, the nylon tight buffered layer of an optical fiber is easy to peel off a coating optical fiber, therefore the yield connection construction efficiency is improved and the construction cost is reduced.
Description
Technical field
The present invention relates to optical communication cable field, be specifically related to a kind of military optical fiber cable for field operation and preparation method thereof.
Background technology
Optical communication has other communication modes many as impayable superiority such as symmetrical cable, concentric cable, microwaves, its message capacity is large, repeater span length, good confidentiality, antijamming capability is strong, line loss is little, it is wide to be with, volume is little, lightweight, constructability maintenance etc., thus receiving the great attention of the military once coming out, being applied to military communication field.
Military optical fiber cable for field operation needs directly to lay under the rugged surroundings such as field, and optical cable is in not shielded environment, very easily stretches, extrudes and rubs, and therefore military optical fiber cable for field operation should meet the requirement of high-tension, high pressure, the high ratio of strength to weight, high abrasion; Meanwhile, military optical fiber cable for field operation lays for the ease of scene, fast wiring, repeatedly folding and unfolding and logistics transport, should meet small-bend radius, alternating bending, the requirement that lightweight, size is little, soft.General communications optical cable is difficult to meet above-mentioned requirements simultaneously.
Summary of the invention
For the defect existed in prior art, the object of the present invention is to provide a kind of military optical fiber cable for field operation.
For reaching above object, the technical scheme that the present invention takes is: a kind of military optical fiber cable for field operation, it comprises cable jacket, aramid fiber reinforcing element, nylon tight sleeve layer and coated fiber from outside to inside successively, described aramid fiber reinforcing element is made up of multiply aramid yarn, it is characterized in that: at described cable jacket and described aramid fiber reinforcing element intersection, the part aramid yarn of described aramid fiber reinforcing element embeds described cable jacket and forms mixing enhancement Layer.
On the basis of technique scheme, described Cable jacket materials is Low-smoke halogen-free flame retardant thermoplastic polyurethane elastomer.
On the basis of technique scheme, described aramid fiber reinforcing element is high strength aramid yarn.
On the basis of technique scheme, described aramid fiber reinforcing element comprises 5 ~ 8 bundle aramid yarns, and described aramid yarn is evenly distributed between cable jacket and nylon tight sleeve layer.
On the basis of technique scheme, described coated fiber applies one deck resin by bend insensitive fiber and forms.
The present invention also provides a kind of method for making of military optical fiber cable for field operation, comprises the following steps:
S1, form coated fiber at bare fibre surface coating one deck resin;
S2, coated fiber is put in Constant-tension pay-off rack, adjustment laying tension;
S3, to be drawn from pay off rack by coated fiber, by preheating oven, and introduce in the extrusion die of extruding machine, extrusion die is for squeezing tubular type self-core-setting mold;
S4, at coated fiber coating one deck nylon tight sleeve layer outward;
S5, outside the nylon tight sleeve layer evenly wrapped up by aramid fiber reinforcing element, extrude one deck cable jacket by another extruding machine, described aramid fiber reinforcing element surface is crude, part aramid yarn can embed described cable jacket by extrusion process and form mixing enhancement Layer, and each district temperature range of described extruding machine is 145 DEG C ~ 165 DEG C.
On the basis of technique scheme, in described step S2, laying tension is 70 ~ 90g.
On the basis of technique scheme, in described step S4, the operating temperature range of extruding machine is 210 DEG C ~ 230 DEG C, and in described step S4, extruding machine is connected with vacuum extractor.
Compared with prior art, the invention has the advantages that:
(1) the military optical fiber cable for field operation of one of the present invention comprises cable jacket, aramid fiber reinforcing element, nylon tight sleeve layer and coated fiber from outside to inside successively, aramid fiber reinforcing element is made up of multiply aramid yarn, cable jacket and aramid fiber reinforcing element intersection, the part aramid yarn of aramid fiber reinforcing element embeds described cable jacket and forms mixing enhancement Layer, ensure that cable jacket and aramid fiber reinforcing element can bear very large pulling force and pressure simultaneously, optical cable does not produce obvious additional attenuation and can restore to the original state.
(2) nylon tight sleeve layer easily separates coated fiber, and convenient on-the-spot connection fast, applicable field environment rapidly and efficiently connects up.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of military optical fiber cable for field operation in the embodiment of the present invention.
In figure: 1-cable jacket, 2-mixing enhancement Layer, 3-aramid fiber reinforcing element, 4-nylon tight sleeve layer, 5-coated fiber.
Embodiment
Below in conjunction with drawings and Examples, the present invention is described in further detail.
Shown in Figure 1, the embodiment of the present invention provides a kind of military optical fiber cable for field operation and manufacture method thereof.
In the present invention, a kind of military optical fiber cable for field operation comprises cable jacket 1, mixing enhancement Layer 2, aramid fiber reinforcing element 3, nylon tight sleeve layer 4 and coated fiber 5 from outside to inside successively.
Cable jacket 1 material is Low-smoke halogen-free flame retardant thermoplastic polyurethane elastomer, has good fire resistance and mechanical property, as Cable jacket materials, ensure that fiber optic cable flame retardant, tension stress, compressive resistance and high strength ratio, ageing-resistant, wear-resistant.
Aramid fiber reinforcing element 3 is high strength aramid yarn, ensure that optical cable is soft, wiring is convenient, and aramid fiber reinforcing element 3 can carry pulling force, adds the tensile property of optical cable.Aramid fiber reinforcing element 3 comprises 5 ~ 8 bundle aramid yarns, and aramid yarn is evenly distributed between cable jacket 1 and nylon tight sleeve layer 4, makes aramid fiber reinforcing element 3 uniform force.
Subelement in general structure in cable jacket is more open, subelement is easier to extract out with aramid yarn ratio, cable jacket easily produces deformation, cable jacket 1 in this programme, aramid fiber reinforcing element 3, nylon tight sleeve layer 4 be coated closely, be difficult to extract out, cable jacket 1 and aramid fiber reinforcing element 3 intersection, the part aramid yarn of aramid fiber reinforcing element 3 embeds described cable jacket 1 and forms mixing enhancement Layer, this structure makes aramid fiber reinforcing element 3 and cable jacket 1 can bear very large pulling force and mechanical pressure simultaneously, and optical cable does not produce obvious additional attenuation and can restore to the original state.
Coated fiber 5 can be the optical fiber such as G657A1, G657A2, G657B3, and its surface coating one deck resin, this type optical fiber, to little bend-insensitive, adapts to complicated wiring environment more.
The cable core be made up of aramid fiber reinforcing element 3, nylon tight sleeve layer 4 and coated fiber 5 adopts flat mode of dragging to produce, and once extruded, process is simple, and production efficiency is high.Nylon tight sleeve layer 4 easily separates coated fiber 5, and convenient on-the-spot connection fast, applicable field environment rapidly and efficiently connects up.The minimum bending radius of optical cable is 5mm.
A kind of method for making of military optical fiber cable for field operation in the present invention, comprises the following steps:
S1, form coated fiber 5 at bare fibre surface coating one deck resin, object is to ensure that coated fiber 5 has good stripping performance, and this naked fibre can be the optical fiber such as G657A1, G657A2, G657B3;
S2, be put in Constant-tension pay-off rack by coated fiber 5, adjust laying tension, laying tension is 70 ~ 90g;
S3, by coated fiber 5 from pay off rack draw, by preheating oven, introduce extruding machine extrusion die in, extrusion die for squeeze tubular type self-core-setting mold;
The working temperature of S4, setting extruding machine, temperature range is 210 DEG C ~ 230 DEG C, adjust die location, mold center and equipment center point is made to be in same level line, between core rod and die cap, clearance distance is impartial, starts extruding machine, connects vacuum extractor, at the outer coating one deck nylon tight sleeve layer 4 of coated fiber 5, extrusion die, temperature and the technology controlling and process vacuumized make coated fiber 5 easily peel off;
S5, extruded one deck cable jacket 1 by another extruding machine by outside the nylon tight sleeve layer 4 of the even parcel of aramid fiber reinforcing element 3, aramid fiber reinforcing element 3 is high strength aramid yarn, aramid fiber reinforcing element 3 comprises 5 ~ 8 bundle aramid yarns, aramid fiber reinforcing element 3 surface is crude, part aramid yarn can embed described cable jacket 1 by extrusion process and form mixing enhancement Layer 2, and each district temperature range of described extruding machine is 145 DEG C ~ 165 DEG C.
A kind of military optical fiber cable for field operation in the present invention, can use in the wild with under complex environment, this optical cable have lightweight, be convenient for carrying and transport; Tension stress, compressive resistance, the ratio of strength to weight are high; Flexibility is good, flexible; Oil resistant, wear-resisting, fire-retardant; The features such as Applicable temperature scope is wide.Be applicable to military field communication system fast wiring or folding and unfolding repeatedly; Radar, aviation and naval vessel wiring; The occasion of the more severe such as oil field, mine, harbour, TV are relayed live, communication line repairing improves wiring efficiency, increases the service life, reduces construction intensity, and then reduce construction cost.
The present invention is not limited to above-mentioned embodiment, and for those skilled in the art, under the premise without departing from the principles of the invention, can also make some improvements and modifications, these improvements and modifications are also considered as within protection scope of the present invention.The content be not described in detail in this instructions belongs to the known prior art of professional and technical personnel in the field.
Claims (8)
1. a military optical fiber cable for field operation, it comprises cable jacket (1), aramid fiber reinforcing element (3), nylon tight sleeve layer (4) and coated fiber (5) from outside to inside successively, described aramid fiber reinforcing element (3) is made up of multiply aramid yarn, it is characterized in that: at described cable jacket (1) and described aramid fiber reinforcing element (3) intersection, the part aramid yarn of described aramid fiber reinforcing element (3) embeds described cable jacket (1) and forms mixing enhancement Layer (2).
2. a kind of military optical fiber cable for field operation as claimed in claim 1, is characterized in that: described cable jacket (1) material is Low-smoke halogen-free flame retardant thermoplastic polyurethane elastomer.
3. a kind of military optical fiber cable for field operation as claimed in claim 1, is characterized in that: described aramid fiber reinforcing element (3) is high strength aramid yarn.
4. a kind of military optical fiber cable for field operation as claimed in claim 3, it is characterized in that: described aramid fiber reinforcing element (3) comprises 5 ~ 8 bundle aramid yarns, and described aramid yarn is evenly distributed between cable jacket (1) and nylon tight sleeve layer (4).
5. a kind of military optical fiber cable for field operation as claimed in claim 1, is characterized in that: described coated fiber (5) applies one deck resin by bend insensitive fiber and forms.
6. the method for making of a kind of military optical fiber cable for field operation as claimed in claim 1, is characterized in that, comprise the following steps:
S1, form coated fiber (5) at bare fibre surface coating one deck resin;
S2, coated fiber (5) is put in Constant-tension pay-off rack, adjustment laying tension;
S3, by coated fiber (5) from pay off rack draw, by preheating oven, and introduce in the extrusion die of extruding machine, extrusion die for squeeze tubular type self-core-setting mold;
S4, at coated fiber (5) coating one deck nylon tight sleeve layer (4) outward;
S5, extruded one deck cable jacket (1) by another extruding machine by outside the nylon tight sleeve layer (4) of the even parcel of aramid fiber reinforcing element (3), described aramid fiber reinforcing element (3) surface is crude, part aramid yarn can embed described cable jacket (1) by extrusion process and form mixing enhancement Layer (2), and each district temperature range of described extruding machine is 145 DEG C ~ 165 DEG C.
7. the method for making of a kind of military optical fiber cable for field operation as claimed in claim 6, is characterized in that: in described step S2, laying tension is 70 ~ 90g.
8. the method for making of a kind of military optical fiber cable for field operation as claimed in claim 6, is characterized in that: in described step S4, the operating temperature range of extruding machine is 210 DEG C ~ 230 DEG C, and in described step S4, extruding machine is connected with vacuum extractor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610064609.4A CN105549168A (en) | 2016-01-29 | 2016-01-29 | Military field operation optical cables and manufacture method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610064609.4A CN105549168A (en) | 2016-01-29 | 2016-01-29 | Military field operation optical cables and manufacture method thereof |
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| CN105549168A true CN105549168A (en) | 2016-05-04 |
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| CN201610064609.4A Pending CN105549168A (en) | 2016-01-29 | 2016-01-29 | Military field operation optical cables and manufacture method thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106842455A (en) * | 2017-03-23 | 2017-06-13 | 烽火通信科技股份有限公司 | A kind of MPO optical cables comprising optical cable subelement and preparation method thereof |
| CN106873106A (en) * | 2017-02-04 | 2017-06-20 | 烽火通信科技股份有限公司 | It is a kind of can hand tear optical cable unit of stripping and preparation method thereof |
| CN108387982A (en) * | 2018-02-23 | 2018-08-10 | 烽火通信科技股份有限公司 | A kind of Full-dry optical cable and its manufacturing method |
| US11874516B2 (en) | 2018-11-02 | 2024-01-16 | Corning Research & Development Corporation | Flexible, non-preferential bend jackets for optical fiber cables |
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| CN87103827A (en) * | 1986-05-28 | 1988-04-06 | 美国电话电报公司 | Optical cable with non-metallic sheath system |
| US6167180A (en) * | 1997-09-12 | 2000-12-26 | Alcatel | Cable having at least one layer of flexible strength members with adhesive and non-adhesive yarns for coupling an outer protective jacket and a buffer tube containing optical fibers |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106873106A (en) * | 2017-02-04 | 2017-06-20 | 烽火通信科技股份有限公司 | It is a kind of can hand tear optical cable unit of stripping and preparation method thereof |
| CN106842455A (en) * | 2017-03-23 | 2017-06-13 | 烽火通信科技股份有限公司 | A kind of MPO optical cables comprising optical cable subelement and preparation method thereof |
| CN108387982A (en) * | 2018-02-23 | 2018-08-10 | 烽火通信科技股份有限公司 | A kind of Full-dry optical cable and its manufacturing method |
| WO2019161650A1 (en) * | 2018-02-23 | 2019-08-29 | 烽火通信科技股份有限公司 | Fully dry optical cable and manufacturing method therefor |
| CN108387982B (en) * | 2018-02-23 | 2019-12-03 | 烽火通信科技股份有限公司 | A kind of Full-dry optical cable and its manufacturing method |
| US11874516B2 (en) | 2018-11-02 | 2024-01-16 | Corning Research & Development Corporation | Flexible, non-preferential bend jackets for optical fiber cables |
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Application publication date: 20160504 |