CN107577017A

CN107577017A - A kind of anti-unfirmly closing optical cable and preparation method thereof

Info

Publication number: CN107577017A
Application number: CN201710937214.5A
Authority: CN
Inventors: 沈群华
Original assignee: Changshu Guleite Machinery Product Design Co Ltd
Current assignee: Changshu Guleite Machinery Product Design Co Ltd
Priority date: 2015-03-10
Filing date: 2015-03-10
Publication date: 2018-01-12
Also published as: CN104614829A; CN104614829B

Abstract

The invention belongs to technical field of cables, more particularly, to a kind of anti-unfirmly closing optical cable, it includes more Loose tubes, the overcoat outside Loose tube, the sheath outside overcoat being distributed in outside reinforcer, oversheath outside sheath, an optical fiber is comprised at least in every Loose tube, it is characterized in that have one to prevent pecking layer between sheath and oversheath, it is described to prevent that peck layer is made up of following raw material：Medium density polyethylene or low density polyethylene (LDPE) or high density polyethylene (HDPE), epoxy resin, ultra-fine steel fibre and glass fibre and silica optical fiber, EVA hot-melt adhesive, antioxidant, aluminium hydroxide, paraffin, carbon black master batch.Present invention further teaches its preparation method.The present invention has following main beneficial effect：Easily make, anti-peck that effect is good, speed of production is fast, product qualified rate is high, more resistant to pressure and more resistant to impact.

Description

A kind of anti-unfirmly closing optical cable and preparation method thereof

The application is entitled：A kind of anti-unfirmly closing optical cable and preparation method thereof, the applying date are on March 10th, 2015, application Number it is：201510104164.3 application for a patent for invention divisional application.

Technical field

The invention belongs to technical field of cables, more particularly, to a kind of anti-unfirmly closing optical cable and preparation method thereof.

Background technology

To adapt to the existence of environment, be grown in birds near forest zone mostly with sharp puff, they can peck bad cable, Communications optical cable cable sheath and insulating barrier.In cable and communications optical cable, for the ease of identification, usual insulating barrier and Loose tube have more Kind color, after pipping sheath, the insulating barrier and Loose tube of a variety of colors look like pattern insect, and birds are eaten by mistake and often pecked bad Insulated wire cores, optical fiber, or even peck disconnected copper conductor, cause electric power/communication obstructed.Sleet is entered in cable by broken sheath Portion, in the course of time, cause the communication failure of unknown cause.More forest land areas at home, such as Hunan, Yunnan, Zhejiang, Guilin Ground, the failure that cable is repeatedly broken by unfirmly closing is had occurred and that, causes immeasurable loss.

Therefore, the country has carried out substantial amounts of research.It is entitled：Anti- pecking 8-shaped photoelectrical composite cable, Authorization Notice No.： CN202041686U patent, filled by sheath, copper cash bed course, copper conductor, pine set filled composite, optical fiber, Loose tube, cable core Compound, reinforcer bed course, reinforcer, auxiliary reinforcing element, moisture-proof layer composition, in Loose tube, Loose tube is centered around optical fiber Around reinforcer, wrapped up by band, cable core filled composite is moisture-proof layer outside band, they form cable core, with bag in band There is the copper conductor bed course sheath of copper conductor, they form 8-shaped sheath by sheath, and its sheath is red.Cable can effectively be protected When outdoor is aerial not by unfirmly closing；It is entitled：Anti- unfirmly closing indoor and outdoor integration photoelectricity composite cable, Authorization Notice No.： CN203165550U patent, it includes flame-retardant sheath material, optical fiber, reinforcer, wire, painting plastic composite strip, insulating barrier and red PE sheaths, for optical fiber 7 at the center of flame-retardant sheath material 6, both sides are reinforcers 5, wire 4 by after the vertical bag of painting plastic composite strip 3 with it is fire-retardant 1 carries out outer shield with red PE sheaths after protective cover material 6 is twisted together.This product is mainly used in connecting between mobile base station and launching tower Connect, connected in computer room, can reach and avoid local power failure or batteries failure and cause the effect of power-off of base station；Network is reduced to build If expense, secondary wiring is avoided, can also anti-unfirmly closing；It is entitled：Outdoor nonmetal bird pecking prevention aerial optical cable, Authorization Notice No.： CN202067003U patent, it includes optical fiber, Loose tube, fine cream, center reinforcemen, sheath, contains optical fiber（6）Loose tube （8）It is centered around center reinforcemen（2）Around, Loose tube（8）Inside there is fine cream（7）, Loose tube（8）By band（5）Wrapping, overcoat shield Set（9）, it is characterised in that：Band（5）Inside there is material water-proof material（4）, sheath（9）It is red pe sheath；It is entitled：Self-bearing type Anti- unfirmly closing overhead aluminum core composite cable, Authorization Notice No.：CN202258545U patent, it includes sheath, aluminum conductor, cable core and filled out Fill compound, reinforcer, optical fiber, pine set filled composite, Loose tube, band, moisture-proof layer and steel strand wires, optical fiber（7）Covered in pine Pipe（9）It is interior, Loose tube（9）Inside there is pine set filled composite（8）, Loose tube（9）And aluminum conductor（3）Around reinforcer（6）It is twisted Together by band（11）Wrapping, it is characterised in that：Band（11）There is moisture-proof layer outside（12）With 8 font red sheaths（1）, it is small straight There are steel strand wires in the red sheath of footpath（13）；It is entitled：Anti- unfirmly closing self-bearing type butterfly leading in cable, Authorization Notice No.： CN202649559U patent, it includes optical fiber, reinforcer and oversheath, and reinforcer is in optical fiber both sides, together by oversheath bag Wrap up in into butterfly, it is characterised in that：Oversheath（4）Side is also connected with equipped with wire reinforcement（1）Red sheath（5）；Title For：, Authorization Notice No.：CN202523458U patent, it is characterised in that：Loose tube and copper conductor are centered around around reinforcer, Optical fiber and pine set filled composite are in Loose tube, and they are all wrapped up by band, and outside is moisture-proof layer, it is characterised in that：Gear tide Layer（11）Outer sheath is red sheath；It is entitled：A kind of anti-unfirmly closing optical cable, Authorization Notice No.：CN203133348U's is special Profit, including cable core and oversheath, cable core is interior to have the fiber unit collectively formed by optical fiber, fine cream, ferrule and center Reinforcer, gasket for packing, it is characterised in that bundle yarn layer is sequentially provided between cable core and oversheath and wrinkle steel belt layer, oversheath are Red sheath and yellow sheath are symmetrical arranged longitudinally twisted structure.Oversheath is symmetrical arranged using red sheath and yellow sheath Longitudinally twisted structure, outer likeness in form are wrapped in the snake on optical cable, are afraid of bird pest, dare not fly to gnaw in cable surface again and peck optical cable, Optical cable is hardly damaged, is increased the service life；It is entitled：New anti-unfirmly closing colour code optical cable, Authorization Notice No.：CN203133349U Patent, including cable core and oversheath, have in cable core the fiber unit that is collectively formed by optical fiber, fine cream, ferrule and Center reinforcemen, gasket for packing, it is characterised in that be sequentially provided between cable core and oversheath and prick yarn layer, inner sheath and wrinkle steel band Layer, the structure of oversheath are equidistantly provided with the red sheath of several yellow colour codes for longitudinal direction；It is entitled：With anti-unfirmly closing function Aerial cable, Authorization Notice No.：CN203325538U patent, including the steel wire as self-supporting line（1）, eight pieces be coated with it is poly- Pvdf layer（21）Copper conductor（2）With red oversheath body（3）；Eight copper conductors（2）It is twisted two-by-two and forms four pairs of conducts The twisted wire pair of information communication（4）, the first twisted wire pair of the four twisted pair wires centering（41）, the second twisted wire pair（42）, the 3rd twisted wire pair （43）With the 4th twisted wire pair（44）It is arranged in order and is twisted counterclockwise and forms conductive cable core（5）；One polyester belt（6）It is described around being wrapped in Conductive cable core（5）Outer surface, an inner restrictive coating（7）Extrude in the polyester belt（6）Outer surface；The red oversheath body（3） Including the first sub- sheath（31）With the second sub- sheath（32）, the first sub- sheath（31）With the second sub- sheath（32）Between pass through One connects muscle portion（33）Connection, the first sub- sheath（31）It is coated on the inner restrictive coating（7）Outer surface, the second sub- sheath （32）It is coated on the steel wire（1）Outer surface；It is entitled：The anti-unfirmly closing photoelectricity composite cable of Self-bearing-type overhead, Authorization Notice No.： CN203260336U patent, it includes aluminum conductor, red PE pe sheaths layer, PBT Loose tubes, metal reinforcement, steel and twisted Line, PE sheaths, metal compound belt, red PE protective cover materials, it is characterised in that：Optical fiber carries out pine set protection and makes PBT Loose tubes （3）, PBT Loose tubes（3）Inside it is filled with filler；By twisted by PBT Loose tubes（3）It is centered around metal reinforcement（4）Outside, into It is the metal compound belt of vertical bag armouring outside cable core after cable（7）, metal compound belt（7）Outside is equipped with red PE sheaths after armouring Material（2）, aluminum conductor（1）, steel strand wires（5）, PE sheaths（6）Red PE pe sheaths layer（2）, they are mounted side by side on red Color PE pe sheath layers（2）It is interior；It is entitled：Self-bearing type bird-pecking-proof overhead integrated leading-in optical cable, Authorization Notice No.： CN202217541U patent, it include center reinforcemen, feed line, material water-proof material in cable, band, communication metal wire to, Moisture-proof layer, the Loose tube containing optical fiber, sheath, steel strand wires, the Loose tube containing optical fiber（10）Or other light units are strengthened around center Part（2）Twisted, outside is band（6）And moisture-proof layer（8）, it is characterised in that：Feed line（4）With communication metal wire pair（7）Enclose Around center reinforcemen（2）It is twisted, band（6）Inside there is material water-proof material in cable（5）, moisture-proof layer（8）It is the red poly- second sheath of 8 fonts outside （11）, 8 font red pe sheaths（11）Minor diameter set in be cased with steel strand wires（12）；Above-mentioned patent, makes bar none Cable outermost layer is all or part of red or other colors, and birds are taken the photograph for prestige, it is applicant's understanding that only the color of sheath is red Color turns into distinguishing feature, should not turn into utility model patent first, because it is not the shape and knot of patent protection Structure；Secondly, red or other colors nor for all forest zone birds can prestige take the photograph, conversely, because cable is having wind When can swing or shake, most of birds be mistaken for pink bollworm son, therefore, eye-catching cable is more easy to be attacked by birds Hit, therefore the fault rate for causing cable to occur by unfirmly closing is higher；It is entitled：A kind of anti-unfirmly closing All Dielectric self-support, authorize Notification number：CN203054288U patent, it includes optical fiber, Loose tube, fine cream, center reinforcemen, sheath, aramid layers, outside Sheath, contain optical fiber（1）Loose tube（3）It is centered around center reinforcemen（4）Around, Loose tube（3）Inside there is fine cream（2）, pine set Pipe（3）By bundle yarn（6）Wrapping, sheath（7）With Loose tube（3）Between, there is cable core filler（5）, it is characterised in that：Aramid layers （8）It is evenly distributed in sheath（7）Around, last outer jacket（9）Using nylon sheath wire material；The cost of nylon sheath wire material in itself It is 15-20 times of polyethylene sheath material, moreover, process velocity is extremely slow, product qualified rate is only 50% or so, and one-shot forming adds Work thickness can only can be only achieved the anti-requirement for pecking needs in below 0.8mm, it is necessary to repeatedly process；It is entitled：The anti-bird of termite-resistant rodent-resistant Peck communication cable, Authorization Notice No.：CN201094125Y patent, including cable core (1), cable core (1) is by some to band (21) line is formed to (2), and line is twisted to (2) by the insulating barrier (23) of two conductors (22) and conductor (22) outside, and it is special Sign is：The cable core (1) is sequentially provided with band (3), aluminium strip (4) and high molecular weight high density polyolefin jacket from the inside to the outside outside (5)；It is entitled：Anti- unfirmly closing communication cable, Authorization Notice No.：CN201017714Y patent, including core, polyethylene insulation Layer, polyester lapping layer, plastic-aluminum shielding band, polyethylene sheath, it is characterised in that：Be surrounded by successively outside core polyethylene layer, Polyester lapping layer, plastic-aluminum shielding band, polyethylene sheath, armor, polyethylene outer sheath.More one layers of the outside of this patent scribbles The steel band of preserver, the small high-molecular polythene of the moisture vapor transmission coefficient that more one layer thicker of outermost, so that cable life prolongs More than one times is grown；And when electric-field intensity is higher, shielding character improves by about one time than original cable；In above-mentioned patent, outside Layer employs high density or macromolecule polyolefin jacket, is in the prior art conventional material, fact proved, it is extremely difficult to plays and effectively support The effect of anti-birds invasion and attack.Therefore, user expects that there is the anti-of more preferable effect to peck cable, prevent pecking optical cable appearance.

The content of the invention

In order to solve the above problems, an object of the present invention is to disclose a kind of anti-unfirmly closing optical cable；The purpose of the present invention it Second, the preparation method of this kind of anti-unfirmly closing optical cable；They are realized using following technical scheme.

In the embodiment 1 of the present invention, anti-unfirmly closing optical cable, it include be distributed in more Loose tubes 2 outside reinforcer 3, Overcoat 4 outside Loose tube, the sheath 5 outside overcoat, the oversheath 7 outside sheath, every An optical fiber 1 is comprised at least in Loose tube, it is characterised in that have one to prevent pecking layer 6 between sheath and oversheath, it is described It is anti-to peck layer by weight, it is made up of following raw material：Medium density polyethylene or low density polyethylene (LDPE) or high density polyethylene (HDPE)：50 ~80 parts；The epoxy resin that the trade mark is 617 or the trade mark is 677：10~20 parts；A diameter of 10~80 μm, length/diameter ratio 5 ~10 ultra-fine steel fibre and length is 0.05~0.2mm, a diameter of 0.03~0.3mm glass fibre and a diameter of 6.5~ 260 μm, the silica optical fiber that length is 0.03~0.3mm：40~60 parts；EVA hot-melt adhesive：5~10 parts；Model 1010 Cable jacket antioxidant：3~5 parts；Aluminium hydroxide：15~25 parts；Paraffin：3~9 parts；Carbon black master batch：5~10 parts；It is described Ultra-fine steel fibre, glass fibre, the ratio of weight and number of silica optical fiber are（1~2）：（1~2）：（4~8）, the titanium dioxide Silicon optical fiber be by only include fibre core either containing fibre core and covering or containing fibre core, covering and coat or containing fibre core, The slim composition of Communication ray of covering, coat and dyed layer, the Communication ray it is slim for G.652, G.653, G.654, G.655, G.656, G.657 at least one of type single-mode fiber, multimode fibre are formed.

In the embodiment 2 of the present invention, anti-unfirmly closing optical cable, it includes at least one pine set being distributed in outside reinforcer 3 Pipe 2 and at least one big gasket for packing 21, the overcoat 4 outside Loose tube and big gasket for packing, outside overcoat in Sheath 5, the oversheath 7 outside sheath, every Loose tube is interior to comprise at least an optical fiber 1, it is characterised in that interior Have one to prevent pecking layer 6 between sheath and oversheath.

In the embodiment 3 of the present invention, anti-unfirmly closing optical cable, it include be distributed in more Loose tubes 2 outside reinforcer 3, Small gasket for packing 22 in the external series gap of adjacent Loose tube, the overcoat 4 outside Loose tube and small gasket for packing, it is located at Sheath 5 outside overcoat, the oversheath 7 outside sheath, every Loose tube is interior to comprise at least an optical fiber 1, the optical fiber is located among fibre ribbon, and fibre ribbon is located in Loose tube, it is characterised in that between sheath and oversheath Prevent pecking layer 6 with one.

Anti- unfirmly closing optical cable, it includes at least Loose tube 2 being distributed in outside reinforcer 3 and at least one big filling Rope, in the external series gap of adjacent Loose tube or in the external series gap of adjacent big gasket for packing or adjacent Loose tube and big filling Small gasket for packing in the external series gap of rope, the overcoat 4 outside Loose tube and big gasket for packing and small gasket for packing, positioned at overcoat Outside sheath 5, the oversheath 7 outside sheath, comprises at least an optical fiber 1 in every Loose tube, it is described Optical fiber is located among fibre ribbon, and fibre ribbon is located in Loose tube, it is characterised in that has one between sheath and oversheath It is anti-to peck layer 6.

The present invention embodiment 4 in, anti-unfirmly closing optical cable, it include Loose tube 2, the water blocking layer 8 outside Loose tube, Overcoat 4 outside water blocking layer, the reinforcer 3 outside overcoat, the outer shield outside reinforcer and overcoat Set 7, comprises at least an optical fiber 1 in Loose tube, optical fiber be with the formal distribution of bulk in Loose tube or In the fibre ribbon being placed in Loose tube, it is characterised in that have one to prevent pecking layer 6 between overcoat and oversheath.

In the embodiment 5 of the present invention, anti-unfirmly closing optical cable, it includes Loose tube 2, outside Loose tube and by Loose tube Integral coating live multi reinforcements 3, by the securing wrapping layer 9 of multi reinforcements, the sheath 5 outside wrapping layer, Oversheath 7 outside sheath, Loose tube is interior to comprise at least an optical fiber 1, and optical fiber is in the form of bulk It is distributed in Loose tube or in the fibre ribbon being placed in Loose tube, it is characterised in that the sheath and outer shield Have one to prevent pecking layer 6 between set.

Anti- unfirmly closing optical cable described above, it is characterised in that the material of the wrapping layer is that polyester pricks yarn or other has one Determine the yarn class material of intensity, it is to be coated on by way of spiral winding outside multi reinforcements, makes multi reinforcements position It is relatively fixed.

Anti- unfirmly closing optical cable described above, it is characterised in that the material of the reinforcer is that steel wire or glass fiber reinforcement are moulded Expect bar.

Anti- unfirmly closing optical cable described above, it is characterised in that the material of the Loose tube is polybutylene terephthalate (PBT) Or modified polypropene.

Anti- unfirmly closing optical cable described above, it is characterised in that the material of the sheath is low density polyethylene (LDPE) or Midst density Polyethylene or high density polyethylene (HDPE).

Anti- unfirmly closing optical cable described above, it is characterised in that the material of the oversheath is low density polyethylene (LDPE) or Midst density Polyethylene or high density polyethylene (HDPE) or nylon.

Anti- unfirmly closing optical cable described above, it is characterised in that described optical fiber is single mode or multimode fibre, and enters one Walk its model of ground G.652 type or G.655 type or G.657 type or A1a types or A1b types.

Anti- unfirmly closing optical cable described above, it is characterised in that the material of the water blocking layer is waterstop or water blocking yarn.

Anti- unfirmly closing optical cable described above, it is characterised in that the material of the big gasket for packing is polypropylene or polyethylene or gathered The mixture of propylene and polyethylene.

Anti- unfirmly closing optical cable described above, it is characterised in that the material of the small gasket for packing is polypropylene or polyethylene or gathered The mixture of propylene and polyethylene.

Anti- unfirmly closing optical cable described above, it is characterised in that there is the interior filler that blocks water in the Loose tube, inside block water Filler is ointment or water-proofing powder or water blocking yarn.

Anti- unfirmly closing optical cable described above, it is characterised in that filled with the outer filling that blocks water in the outer gap of the Loose tube Material, the filler that blocks water outside are ointment or water-proofing powder or water blocking yarn.

The preparation method of anti-unfirmly closing optical cable in embodiment 1 of the present invention, it is characterised in that it is comprised the steps of：

The first step：The step of making colored optical fiber：Colored optical fiber by naked colouring optical fibres into different colours；

Second step：The step of making Loose tube：By secondary coated extruding machine formed Loose tube, and by different colours coloured light Fibre is placed into Loose tube, is wound to form Loose tube finished product, length of the colored optical fiber in Loose tube is grown for Loose tube 1.002~1.015 times of degree, the material of Loose tube is polybutylene terephthalate (PBT) or modified polypropene, makes Loose tube When in the material of Loose tube add Loose tube extrusion molding special color master batch；It is repeated multiple times, form the Loose tube of more different colours；

3rd step：The step of making optical cable core：More Loose tubes that second step is made to obtain, the reinforcer purchased are in SZ Stranding is carried out in stranding machine, makes reinforcer centrally located, more Loose tubes are located at outside reinforcer, what Loose tube SZ was twisted Pitch is 9~18 times of reinforcer and Loose tube diameter sum；

4th step：The step of making sheath：Steel band or aluminium strip material are first longitudinally coated on to the optical cable core of the 3rd step formation Outer formation overcoat, then extrusion molding low density polyethylene (LDPE) or medium density polyethylene or high-density polyethylene material are formed outside overcoat Sheath, the thickness of sheath is 0.8~2.0mm；

5th step：The step of making anti-peck layer：By sheath extruding machine, extrusion molding thickness is 1.0 outside the sheath that the 4th step is formed The anti-of~3.0mm thickness pecks layer, it is described it is anti-peck layer by weight, anti-peck layer by what following raw material were formed：The poly- second of Midst density Alkene or low density polyethylene (LDPE) or high density polyethylene (HDPE)：50~80 parts；The epoxy resin that the trade mark is 617 or the trade mark is 677：10~20 Part；A diameter of 10~80 μm, length/diameter ratio be 5~10 ultra-fine steel fibre and length be 0.05~0.2mm, it is a diameter of 0.03~0.3mm glass fibre and the silica optical fiber that a diameter of 6.5~260 μm, length is 0.03~0.3mm：40~ 60 parts；EVA hot-melt adhesive：5~10 parts；The cable jacket antioxidant of model 1010：3~5 parts；Aluminium hydroxide：15~25 Part；Paraffin：3~9 parts；Carbon black master batch：5~10 parts；；The ultra-fine steel fibre, glass fibre, the parts by weight of silica optical fiber Counting ratio is（1~2）：（1~2）：（4~8）, the silica optical fiber be by only include fibre core or containing fibre core and covering or Person contains fibre core, covering and coat or the slim composition of Communication ray containing fibre core, covering, coat and dyed layer, institute State Communication ray it is slim for G.652, G.653, G.654, G.655, G.656, G.657 in type single-mode fiber, multimode fibre at least A kind of composition；

6th step：The step of making oversheath：Protected by sheath extruding machine in anti-peck that the 5th step is formed outside layer outside extrusion molding cladding Cover material, oversheath thickness are 1.4~3.0mm；The material of oversheath is low density polyethylene (LDPE) or medium density polyethylene or highly dense Spend polyethylene.

The preparation method of anti-unfirmly closing optical cable in embodiment 2 of the present invention, it is characterised in that it is comprised the steps of：

3rd step：The step of making big gasket for packing：By polypropylene or polyethylene or the polypropylene and 15% weight of 85% percentage by weight The mixture for measuring the polyethylene of percentage is put into φ 45 or the extruding machines of φ 60, and extrusion molding stretches to form diameter and gained in second step The equally big big gasket for packing of Loose tube；

4th step：The step of making optical cable core：More Loose tubes that second step is made to obtain, the reinforcer purchased, Obtained big gasket for packing carries out stranding in SZ stranding machines in three steps, makes reinforcer centrally located, more Loose tubes and big Gasket for packing is located at outside reinforcer, and pitch twisted SZ is 9~18 times of reinforcer and Loose tube diameter sum；

5th step：The step of making sheath：Steel band or aluminium strip material are first longitudinally coated on to the optical cable core of the 4th step formation Outer formation overcoat, then extrusion molding low density polyethylene (LDPE) or medium density polyethylene or high-density polyethylene material are formed outside overcoat Sheath, the thickness of sheath is 0.8~2.0mm；

6th step：The step of making anti-peck layer：By sheath extruding machine, extrusion molding thickness is 1.0 outside the sheath that the 5th step is formed The anti-of~3.0mm thickness pecks layer, it is described it is anti-peck layer by weight, anti-peck layer by what following raw material were formed：The poly- second of Midst density Alkene or low density polyethylene (LDPE) or high density polyethylene (HDPE)：50~80 parts；The epoxy resin that the trade mark is 617 or the trade mark is 677：10~20 Part；A diameter of 10~80 μm, length/diameter ratio be 5~10 ultra-fine steel fibre and length be 0.05~0.2mm, it is a diameter of 0.03~0.3mm glass fibre and the silica optical fiber that a diameter of 6.5~260 μm, length is 0.03~0.3mm：40~ 60 parts；EVA hot-melt adhesive：5~10 parts；The cable jacket antioxidant of model 1010：3~5 parts；Aluminium hydroxide：15~25 Part；Paraffin：3~9 parts；Carbon black master batch：5~10 parts；The ultra-fine steel fibre, glass fibre, the parts by weight of silica optical fiber Counting ratio is（1~2）：（1~2）：（4~8）, the silica optical fiber be by only include fibre core or containing fibre core and covering or Person contains fibre core, covering and coat or the slim composition of Communication ray containing fibre core, covering, coat and dyed layer, institute State Communication ray it is slim for G.652, G.653, G.654, G.655, G.656, G.657 in type single-mode fiber, multimode fibre at least A kind of composition；

7th step：The step of making oversheath：Protected by sheath extruding machine in anti-peck that the 6th step is formed outside layer outside extrusion molding cladding Cover material, oversheath thickness are 1.4~3.0mm；The material of oversheath is low density polyethylene (LDPE) or medium density polyethylene or highly dense Spend polyethylene.

The preparation method of anti-unfirmly closing optical cable in embodiment 4 of the present invention, it is characterised in that it is comprised the steps of：

Second step：The step of making Loose tube：By secondary coated extruding machine formed Loose tube, and by different colours coloured light Fibre is placed into Loose tube, is wound to form Loose tube finished product, length of the colored optical fiber in Loose tube is grown for Loose tube 1.002~1.015 times of degree, the material of Loose tube is polybutylene terephthalate (PBT) or modified polypropene, makes Loose tube When in the material of Loose tube add Loose tube extrusion molding special color master batch；

3rd step：The step of making anti-peck layer：First take waterstop or the yarn material that blocks water be coated on second step formation Loose tube it Outer formation water blocking layer；Steel band or aluminium strip is taken longitudinally to be coated on outside water blocking layer and form overcoat again；Two are taken to strengthen placing again Outside overcoat；Then by sheath extruding machine, extrusion molding thickness is the anti-of 1.0~3.0mm thickness outside overcoat and reinforcer Peck layer, it is described it is anti-peck layer by weight, anti-peck layer by what following raw material were formed：Medium density polyethylene or low density polyethylene (LDPE) Or high density polyethylene (HDPE)：50~80 parts；The epoxy resin that the trade mark is 617 or the trade mark is 677：10~20 parts；A diameter of 10~80 μ M, the ultra-fine steel fibre and length that length/diameter ratio is 5~10 are 0.05~0.2mm, a diameter of 0.03~0.3mm glass fibers The silica optical fiber that peacekeeping is a diameter of 6.5~260 μm, length is 0.03~0.3mm：40~60 parts；EVA hot-melt adhesive：5~10 Part；The cable jacket antioxidant of model 1010：3~5 parts；Aluminium hydroxide：15~25 parts；Paraffin：3~9 parts；Carbon black is female Grain：5~10 parts；；The ultra-fine steel fibre, glass fibre, the ratio of weight and number of silica optical fiber are（1~2）：（1~2）：（4~8）, the silica optical fiber is by only including fibre core either containing fibre core and covering or containing fibre core, covering and painting Coating or the slim composition of Communication ray containing fibre core, covering, coat and dyed layer, the Communication ray it is slim for G.652, G.653, G.654, G.655, G.656, G.657 at least one of type single-mode fiber, multimode fibre are formed；Wherein, two Reinforcer is to be placed in overcoat external symmetry and minimum range between reinforcer and overcoat be 0.2mm, and reinforcer is away from preventing The minimum range for pecking layer outer rim is 0.4mm；

4th step：The step of making oversheath：Protected by sheath extruding machine in anti-peck that the 3rd step is formed outside layer outside extrusion molding cladding Cover material；The material of oversheath is low density polyethylene (LDPE) or medium density polyethylene or high density polyethylene (HDPE) or nylon 12；When outer shield When the material of set is low density polyethylene (LDPE) or medium density polyethylene or high density polyethylene (HDPE), oversheath thickness is 1.0~3.0mm； When the material of oversheath is nylon 12, oversheath thickness is 0.4~0.8mm.

In the present invention, due to pecking layer with anti-, anti-layer of pecking has special formula, and on the one hand it can be entered by extruding machine Row extrusion molding, easy to process, speed of production is fast, and a diameter of below 25mm cable and optical cable, speed are produced on the extruding machines of φ 90 Reach more than 60 ms/min, and product qualified rate is high, because anti-peck has ultra-fine steel fibre and glass fibre and titanium dioxide in layer Silicon optical fiber, it has extremely strong performance of stabbing, birds peck hit first time after, its puff will be injured, therefore do not peck again The desire hit so that cable is effectively protected, and by the use in nearly 3 years forest zones, does not have generation again because birds peck bad optical cable And the accident for interrupting letter occurs；Meanwhile anti-layer of pecking of the invention has stronger anti-side pressure and impact resistance；It is anti-to peck layer tool There are excellent extrusion processing performance and environmental performance.

The present invention is easy to the equipment for making, need not adding costliness.

The present invention has following main beneficial effect：Easily make, it is anti-peck effect is good, speed of production is fast, product qualified rate is high, More resistant to pressure and more resistant to impact.

Brief description of the drawings

Fig. 1 is the cross-sectional structure schematic diagram of embodiment 1 of the present invention.

Fig. 2 is the cross-sectional structure schematic diagram of embodiment 2 of the present invention.

Fig. 3 is the cross-sectional structure schematic diagram of embodiment 3 of the present invention.

Fig. 4 is the cross-sectional structure schematic diagram of embodiment 4 of the present invention.

Fig. 5 is the cross-sectional structure schematic diagram of embodiment 5 of the present invention.

Embodiment

Embodiment of the embodiment 1 of the present invention to embodiment 5 for anti-unfirmly closing optical cable and preparation method thereof.

Embodiment 1

See Fig. 1, anti-unfirmly closing optical cable, it, which is included, is distributed in four Loose tubes 2 outside reinforcer 3, outside Loose tube Overcoat 4, the sheath 5 outside overcoat, the oversheath 7 outside sheath, every Loose tube is interior to include the six roots of sensation Optical fiber 1, it is characterised in that have between sheath and oversheath one it is anti-peck layer 6, it is described it is anti-peck layer by weight, by with Lower raw material are formed：Medium density polyethylene or low density polyethylene (LDPE) or high density polyethylene (HDPE)：50~80 parts；The trade mark is 617 or board Number be 677 epoxy resin：10~20 parts；A diameter of 10~80 μm, the ultra-fine steel fibre that length/diameter ratio is 5~10 and length Spend for 0.05~0.2mm, a diameter of 0.03~0.3mm glass fibre and a diameter of 6.5~260 μm, length be 0.03~ 0.3mm silica optical fiber：40~60 parts；EVA hot-melt adhesive：5~10 parts；The cable jacket of model 1010 is with anti-oxidant Agent：3~5 parts；Aluminium hydroxide：15~25 parts；Paraffin：3~9 parts；Carbon black master batch：5~10 parts；The ultra-fine steel fibre, glass Fiber, the ratio of weight and number of silica optical fiber are（1~2）：（1~2）：（4~8）, the silica optical fiber is by only wrapping Containing fibre core either containing fibre core and covering or containing fibre core, covering and coat or containing fibre core, covering, coat and The slim composition of Communication ray of chromatograph, the Communication ray it is slim for G.652, G.653, G.654, G.655, G.656, G.657 type What at least one of single-mode fiber, multimode fibre were formed.

Certainly, the Loose tube described in this embodiment can be more, and a light guide fibre is comprised at least in every Loose tube Dimension.

The preparation method of anti-unfirmly closing optical cable, it is characterised in that it is comprised the steps of：

5th step：The step of making anti-peck layer：By sheath extruding machine, extrusion molding thickness is 1.0 outside the sheath that the 4th step is formed The anti-of~3.0mm thickness pecks layer, it is described it is anti-peck layer by weight, anti-peck layer by what following raw material were formed：The poly- second of Midst density Alkene or low density polyethylene (LDPE) or high density polyethylene (HDPE)：50~80 parts；The epoxy resin that the trade mark is 617 or the trade mark is 677：10~20 Part；A diameter of 10~80 μm, length/diameter ratio be 5~10 ultra-fine steel fibre and length be 0.05~0.2mm, it is a diameter of 0.03~0.3mm glass fibre and the silica optical fiber that a diameter of 6.5~260 μm, length is 0.03~0.3mm：40~ 60 parts；EVA hot-melt adhesive：5~10 parts；The cable jacket antioxidant of model 1010：3~5 parts；Aluminium hydroxide：15~25 Part；Paraffin：3~9 parts；Carbon black master batch：5~10 parts；The ultra-fine steel fibre, glass fibre, the parts by weight of silica optical fiber Counting ratio is（1~2）：（1~2）：（4~8）, the silica optical fiber be by only include fibre core or containing fibre core and covering or Person contains fibre core, covering and coat or the slim composition of Communication ray containing fibre core, covering, coat and dyed layer, institute State Communication ray it is slim for G.652, G.653, G.654, G.655, G.656, G.657 in type single-mode fiber, multimode fibre at least A kind of composition；

Embodiment 2

See Fig. 2, anti-unfirmly closing optical cable, it include be distributed in four Loose tubes 2 outside reinforcer 3 and one big gasket for packing 21, Overcoat 4 outside Loose tube and big gasket for packing, the sheath 5 outside overcoat, it is outer outside sheath Sheath 7, every Loose tube is interior to comprise at least an optical fiber 1, it is characterised in that has one to prevent between sheath and oversheath Peck layer 6, it is described to prevent pecking layer by weight, it is made up of following raw material：Medium density polyethylene or low density polyethylene (LDPE) are highly dense Spend polyethylene：50~80 parts；The epoxy resin that the trade mark is 617 or the trade mark is 677：10~20 parts；A diameter of 10~80 μm, length Degree/diameter than be 0.05~0.2mm for 5~10 ultra-fine steel fibre and length, a diameter of 0.03~0.3mm glass fibre and A diameter of 6.5~260 μm, the silica optical fiber that length is 0.03~0.3mm：40~60 parts；EVA hot-melt adhesive：5~10 parts； The cable jacket antioxidant of model 1010：3~5 parts；Aluminium hydroxide：15~25 parts；Paraffin：3~9 parts；Carbon black master batch： 5~10 parts；The ultra-fine steel fibre, glass fibre, the ratio of weight and number of silica optical fiber are（1~2）：（1~2）：（4~ 8）, the silica optical fiber is by only including fibre core either containing fibre core and covering or containing fibre core, covering and coat Or the slim composition of Communication ray containing fibre core, covering, coat and dyed layer, the Communication ray it is slim for G.652, G.653, G.654, G.655, G.656, G.657 at least one of type single-mode fiber, multimode fibre are formed.

Certainly, the Loose tube described in this embodiment can be more, at least one；One is comprised at least in every Loose tube Root optical fiber；Big gasket for packing at least one.

The preparation method of anti-unfirmly closing optical cable in this embodiment, it is characterised in that it is comprised the steps of：

Embodiment 3

See Fig. 3, anti-unfirmly closing optical cable, it, which is included, is distributed in four Loose tubes 2 outside reinforcer 3, positioned at adjacent Loose tube External series gap in small gasket for packing 22, the overcoat 4 outside Loose tube and small gasket for packing, the interior shield outside overcoat Layer 5, the oversheath 7 outside sheath, every Loose tube is interior to include ten six roots of sensation optical fibers 1, and the optical fiber is located at Among fibre ribbon, fibre ribbon is located in Loose tube, it is characterised in that and have one to prevent pecking layer 6 between sheath and oversheath, it is described It is anti-to peck layer by weight, it is made up of following raw material：Medium density polyethylene or low density polyethylene (LDPE) or high density polyethylene (HDPE)：50 ~80 parts；The epoxy resin that the trade mark is 617 or the trade mark is 677：10~20 parts；A diameter of 10~80 μm, length/diameter ratio 5 ~10 ultra-fine steel fibre and length is 0.05~0.2mm, a diameter of 0.03~0.3mm glass fibre and a diameter of 6.5~ 260 μm, the silica optical fiber that length is 0.03~0.3mm：40~60 parts；EVA hot-melt adhesive：5~10 parts；Model 1010 Cable jacket antioxidant：3~5 parts；Aluminium hydroxide：15~25 parts；Paraffin：3~9 parts；Carbon black master batch：5~10 parts；It is described Ultra-fine steel fibre, glass fibre, the ratio of weight and number of silica optical fiber are（1~2）：（1~2）：（4~8）, the titanium dioxide Silicon optical fiber be by only include fibre core either containing fibre core and covering or containing fibre core, covering and coat or containing fibre core, The slim composition of Communication ray of covering, coat and dyed layer, the Communication ray it is slim for G.652, G.653, G.654, G.655, G.656, G.657 at least one of type single-mode fiber, multimode fibre are formed.

Certainly, the Loose tube described in this embodiment can be more, at least one；One is comprised at least in every Loose tube Root optical fiber.

Certainly, the optical cable in this embodiment, can also be as embodiment 2, anti-unfirmly closing optical cable, and it includes and is distributed in An at least Loose tube 2 and at least one big gasket for packing outside reinforcer 3, in the external series gap of adjacent Loose tube or phase In the external series gap of adjacent big gasket for packing or adjacent Loose tube with the small gasket for packing in the external series gap of big gasket for packing, positioned at Loose tube And the overcoat 4 outside big gasket for packing and small gasket for packing, the sheath 5 outside overcoat, it is outer outside sheath Sheath 7, every Loose tube is interior to comprise at least an optical fiber 1, and the optical fiber is located among fibre ribbon, and fibre ribbon is located at In Loose tube, it is characterised in that have between sheath and oversheath one it is anti-peck layer 6, it is described it is anti-peck layer by weight, by with Lower raw material are formed：Medium density polyethylene or low density polyethylene (LDPE) or high density polyethylene (HDPE)：50~80 parts；The trade mark is 617 or board Number be 677 epoxy resin：10~20 parts；A diameter of 10~80 μm, the ultra-fine steel fibre that length/diameter ratio is 5~10 and length Spend for 0.05~0.2mm, a diameter of 0.03~0.3mm glass fibre and a diameter of 6.5~260 μm, length be 0.03~ 0.3mm silica optical fiber：40~60 parts；EVA hot-melt adhesive：5~10 parts；The cable jacket of model 1010 is with anti-oxidant Agent：3~5 parts；Aluminium hydroxide：15~25 parts；Paraffin：3~9 parts；Carbon black master batch：5~10 parts；The ultra-fine steel fibre, glass Fiber, the ratio of weight and number of silica optical fiber are（1~2）：（1~2）：（4~8）, the silica optical fiber is by only wrapping Containing fibre core either containing fibre core and covering or containing fibre core, covering and coat or containing fibre core, covering, coat and The slim composition of Communication ray of chromatograph, the Communication ray it is slim for G.652, G.653, G.654, G.655, G.656, G.657 type What at least one of single-mode fiber, multimode fibre were formed.

Anti- unfirmly closing optical cable in this embodiment, its preparation method are referred to embodiment 1 and put example 2 with real, only not More one of fibre ribbon making step after the completion of coloring are crossed, by colored optical fiber and with fibre ribbon is formed, then in the shape of Loose tube During, fibre ribbon is inserted in Loose tube.

During anti-unfirmly closing fiber optic cable production in this embodiment, when having small gasket for packing, in SZ strandings, small gasket for packing is placed on In the external series gap of adjacent Loose tube or in the external series gap of adjacent big gasket for packing or adjacent Loose tube and big gasket for packing it is outer In gap.

Embodiment 4

See Fig. 4, anti-unfirmly closing optical cable, it includes Loose tube 2, the water blocking layer 8 outside Loose tube, outside water blocking layer Overcoat 4, the reinforcer 3 outside overcoat, the oversheath 7 outside reinforcer and overcoat, include in Loose tube 12 optical fibers 1, optical fiber be with the formal distribution of bulk in Loose tube or positioned at being placed in Loose tube Fibre ribbon in, it is characterised in that have between overcoat and oversheath one it is anti-peck layer 6, reinforcer is pecked in layer positioned at anti-, institute State and prevent pecking layer by weight, be made up of following raw material：Medium density polyethylene or low density polyethylene (LDPE) or high density polyethylene (HDPE)： 50~80 parts；The epoxy resin that the trade mark is 617 or the trade mark is 677：10~20 parts；A diameter of 10~80 μm, length/diameter ratio be 5~10 ultra-fine steel fibre and length is 0.05~0.2mm, a diameter of 0.03~0.3mm glass fibre and a diameter of 6.5~ 260 μm, the silica optical fiber that length is 0.03~0.3mm：40~60 parts；EVA hot-melt adhesive：5~10 parts；Model 1010 Cable jacket antioxidant：3~5 parts；Aluminium hydroxide：15~25 parts；Paraffin：3~9 parts；Carbon black master batch：5~10 parts；It is described Ultra-fine steel fibre, glass fibre, the ratio of weight and number of silica optical fiber are（1~2）：（1~2）：（4~8）, the titanium dioxide Silicon optical fiber be by only include fibre core either containing fibre core and covering or containing fibre core, covering and coat or containing fibre core, The slim composition of Communication ray of covering, coat and dyed layer, the Communication ray it is slim for G.652, G.653, G.654, G.655, G.656, G.657 at least one of type single-mode fiber, multimode fibre are formed.

Certainly, an optical fiber is comprised at least in the Loose tube described in this embodiment.

3rd step：The step of making anti-peck layer：First take waterstop or the yarn material that blocks water be coated on second step formation Loose tube it Outer formation water blocking layer；Steel band or aluminium strip is taken longitudinally to be coated on outside water blocking layer and form overcoat again；Two are taken to strengthen placing again Outside overcoat；Then by sheath extruding machine, extrusion molding thickness is the anti-of 1.0~3.0mm thickness outside overcoat and reinforcer Peck layer, it is described it is anti-peck layer by weight, anti-peck layer by what following raw material were formed：Medium density polyethylene or low density polyethylene (LDPE) Or high density polyethylene (HDPE)：50~80 parts；The epoxy resin that the trade mark is 617 or the trade mark is 677：10~20 parts；A diameter of 10~80 μ M, the ultra-fine steel fibre and length that length/diameter ratio is 5~10 are 0.05~0.2mm, a diameter of 0.03~0.3mm glass fibers The silica optical fiber that peacekeeping is a diameter of 6.5~260 μm, length is 0.03~0.3mm：40~60 parts；EVA hot-melt adhesive：5~10 Part；The cable jacket antioxidant of model 1010：3~5 parts；Aluminium hydroxide：15~25 parts；Paraffin：3~9 parts；Carbon black is female Grain：5~10 parts；The ultra-fine steel fibre, glass fibre, the ratio of weight and number of silica optical fiber are（1~2）：（1~2）：（4 ~8）, the silica optical fiber is by only including fibre core either containing fibre core and covering or containing fibre core, covering and coating Layer or the slim composition of Communication ray containing fibre core, covering, coat and dyed layer, the Communication ray it is slim for G.652, G.653, G.654, G.655, G.656, G.657 at least one of type single-mode fiber, multimode fibre are formed；Wherein, two Reinforcer is to be placed in overcoat external symmetry and minimum range between reinforcer and overcoat be 0.2mm, and reinforcer is away from preventing The minimum range for pecking layer outer rim is 0.4mm；

Embodiment 5

See Fig. 5, anti-unfirmly closing optical cable, it include Loose tube 2, outside Loose tube and by Loose tube integral coating live more Reinforcer 3, by the securing wrapping layer 9 of multi reinforcements, the sheath 5 outside wrapping layer, outside sheath Oversheath 7, includes 12 optical fibers 1 in Loose tube, optical fiber be with the formal distribution of bulk in Loose tube or Person, which is located at, to be placed in the fibre ribbon in Loose tube, it is characterised in that has one to prevent pecking layer between the sheath and oversheath 6, it is described to prevent pecking layer by weight, it is made up of following raw material：Medium density polyethylene or low density polyethylene (LDPE) or high density are gathered Ethene：50~80 parts；The epoxy resin that the trade mark is 617 or the trade mark is 677：10~20 parts；A diameter of 10~80 μm, length/straight Footpath than be 0.05~0.2mm for 5~10 ultra-fine steel fibre and length, a diameter of 0.03~0.3mm glass fibre and diameter The silica optical fiber for being 0.03~0.3mm for 6.5~260 μm, length：40~60 parts；EVA hot-melt adhesive：5~10 parts；Model For 1010 cable jacket antioxidant：3~5 parts；Aluminium hydroxide：15~25 parts；Paraffin：3~9 parts；Carbon black master batch：5~ 10 parts；The ultra-fine steel fibre, glass fibre, the ratio of weight and number of silica optical fiber are（1~2）：（1~2）：（4~8）, The silica optical fiber be by only include fibre core either containing fibre core and covering or containing fibre core, covering and coat or The slim composition of Communication ray containing fibre core, covering, coat and dyed layer, the Communication ray it is slim for G.652, G.653, G.654, G.655, G.656, G.657 at least one of type single-mode fiber, multimode fibre are formed.

3rd step：The step of making wrapping layer：The pine that first the multi reinforcements integral coating that buying obtains is formed in second step Outside sleeve pipe, multi reinforcements coat in a manner of spiral is twisted, and the twisted pitch of spiral is 100~300 times of reinforcer diameters, is added Strong part is steel wire or fiberglass reinforced plastics；Then obtained polyester bundle yarn or other yarn classes with some strength will be purchased Material is coated on outside reinforcer with 20~50mm pitch spiral windings and forms wrapping layer；

4th step：The step of making sheath：Low density polyethylene (LDPE) or medium density polyethylene or high-density polyethylene material are squeezed Modeling is coated on outside the wrapping layer of the 3rd step formation and forms sheath, and the thickness of sheath is 0.8~2.0mm；

6th step：The step of making oversheath：Protected by sheath extruding machine in anti-peck that the 5th step is formed outside layer outside extrusion molding cladding Cover material；The material of oversheath is low density polyethylene (LDPE) or medium density polyethylene or high density polyethylene (HDPE) or nylon 12；When outer shield When the material of set is low density polyethylene (LDPE) or medium density polyethylene or high density polyethylene (HDPE), oversheath thickness is 1.0~3.0mm； When the material of oversheath is nylon 12, oversheath thickness is 0.4~0.8mm.

Anti- unfirmly closing optical cable described in any of the above-described embodiment, it is characterised in that the anti-optimal embodiment for pecking layer For：By weight, anti-layer is pecked by what following raw material were formed：Medium density polyethylene or low density polyethylene (LDPE) or high-density polyethylene Alkene：50 parts；The epoxy resin that the trade mark is 617 or the trade mark is 677：10 parts；A diameter of 10~80 μm, length/diameter ratio be 5~10 Ultra-fine steel fibre and length be 0.05~0.2mm, a diameter of 0.03~0.3mm glass fibre and a diameter of 6.5~260 μ M, length is 0.03~0.3mm silica optical fiber：40 parts；EVA hot-melt adhesive：5 parts；The cable jacket of model 1010 is used anti- Oxidant：3 parts；Aluminium hydroxide：15 parts；Paraffin：3 parts；Carbon black master batch：5 parts；The ultra-fine steel fibre, glass fibre, titanium dioxide The ratio of weight and number of silicon optical fiber is（1~2）：（1~2）：（4~8）, the silica optical fiber is by only including fibre core or containing There is the Communication ray of fibre core and covering either containing fibre core, covering and coat or containing fibre core, covering, coat and dyed layer Slim composition, the Communication ray it is slim for G.652, G.653, G.654, G.655, G.656, G.657 type single-mode fiber, multimode What at least one of optical fiber was formed.

Anti- unfirmly closing optical cable described in any of the above-described embodiment, it is characterised in that the anti-suboptimum embodiment for pecking layer For：By weight, anti-layer is pecked by what following raw material were formed：Medium density polyethylene or low density polyethylene (LDPE) or high-density polyethylene Alkene：80 parts；The epoxy resin that the trade mark is 617 or the trade mark is 677：20 parts；A diameter of 10~80 μm, length/diameter ratio be 5~ 10 ultra-fine steel fibre and length is 0.05~0.2mm, a diameter of 0.03~0.3mm glass fibre and a diameter of 6.5~260 μm, length be 0.03~0.3mm silica optical fiber：60 parts；EVA hot-melt adhesive：10 parts；The cable jacket of model 1010 is used Antioxidant：5 parts；Aluminium hydroxide：25 parts；Paraffin：9 parts；Carbon black master batch：10 parts；The ultra-fine steel fibre, glass fibre, two The ratio of weight and number of silica optical fibre is（1~2）：（1~2）：（4~8）, the silica optical fiber be by only include fibre core or It is either logical containing fibre core, covering and coat or containing fibre core, covering, coat and dyed layer that person contains fibre core and covering Believe optical fiber body composition, the Communication ray it is slim for G.652, G.653, G.654, G.655, G.656, G.657 type single-mode fiber, What at least one of multimode fibre was formed.

Anti- unfirmly closing optical cable described in any of the above-described embodiment, it is characterised in that the anti-more excellent embodiment for pecking layer For：By weight, anti-layer is pecked by what following raw material were formed：Medium density polyethylene or low density polyethylene (LDPE) or high-density polyethylene Alkene：65 parts；The epoxy resin that the trade mark is 617 or the trade mark is 677：15 parts；A diameter of 10~80 μm, length/diameter ratio be 5~10 Ultra-fine steel fibre and length be 0.05~0.2mm, a diameter of 0.03~0.3mm glass fibre and a diameter of 6.5~260 μ M, length is 0.03~0.3mm silica optical fiber：50 parts；EVA hot-melt adhesive：8 parts；The cable jacket of model 1010 is used anti- Oxidant：4 parts；Aluminium hydroxide：20 parts；Paraffin：6 parts；Carbon black master batch：7.5 part；The ultra-fine steel fibre, glass fibre, dioxy The ratio of weight and number of SiClx optical fiber is（1~2）：（1~2）：（4~8）, the silica optical fiber be by only include fibre core or Communication containing fibre core and covering either containing fibre core, covering and coat or containing fibre core, covering, coat and dyed layer Optical fiber body composition, the Communication ray it is slim for G.652, G.653, G.654, G.655, G.656, G.657 type single-mode fiber, more What at least one of mode fiber was formed.

Anti- unfirmly closing optical cable described above, it is characterised in that the anti-medium density polyethylene or low density polyethylene pecked in layer Alkene or high density polyethylene (HDPE), can be pure medium density polyethylene or low density polyethylene (LDPE) or high density polyethylene (HDPE) or Cable medium density polyethylene or low density polyethylene (LDPE) or high density polyethylene (HDPE) finished product material.

Anti- unfirmly closing optical cable described above, it is characterised in that the material of the overcoat is steel band or aluminium strip.

In the present invention, due to pecking layer with anti-, anti-layer of pecking has special formula, and on the one hand it can be entered by extruding machine Row extrusion molding, easy to process, speed of production is fast, and a diameter of below 25mm cable and optical cable, speed are produced on the extruding machines of φ 90 Reach more than 60 ms/min, and product qualified rate is high, because anti-peck has ultra-fine steel fibre and glass fibre and titanium dioxide in layer Silicon optical fiber, it has extremely strong performance of stabbing, birds peck hit first time after, its puff will be injured, therefore do not peck again The desire hit so that cable is effectively protected, and by the use in nearly 3 years forest zones, does not have generation again because birds peck bad optical cable And the accident for interrupting communication occurs；Meanwhile anti-layer of pecking of the invention has stronger anti-side pressure and impact resistance.Extra-fine steel is fine Commercially can is bought for dimension or glass fibre, and for the anti-silica optical fiber pecked in layer, light guide fibre can be purchased Dimension is rolled, crushed, filtering acquisition, can not only use light guide fibrous finished product, can also be used no covering or not coated Layer or without covering and the optical fiber fibre core or silica optical fiber core body of coat and dyed layer, it might even be possible to use light guide Fiber waste product is rolled, crushed, filtering acquisition, is reached the useless purpose utilized, is reduced the pollution of optical fiber producer；In addition, this hair Material and product in bright are not related to problem of environmental pollution.

In the present invention, when having overcoat, overcoat with it is anti-peck layer and resist pecking for birds jointly hit, when there is no overcoat, add Strong part with it is anti-peck layer and resist pecking for birds jointly hit, make optical cable resist peck hit, impact, the performance of pressure-resistant aspect greatly increases.

In the present invention, oversheath can try one's best without using expensive nylon, can so cost is declined to a great extent, make The buying of user, safeguard that integrated cost is lower.

Certainly, the oversheath in the present invention can also use coloured sheath, such as red, yellow etc., preferably still Conventional black.

Applicant has made using contrast, light for the anti-unfirmly closing optical cable in the application with the optical cable produced by prior art Cable is all aerial laying, and the structure for all using embodiment 1 of the invention, oversheath is black and red, and 1#-4# represents different It is anti-peck layer formula, 1# is maximum magnitude, wherein the ratio of weight and number of ultra-fine steel fibre, glass fibre, silica optical fiber For（1~2）：（1~2）：（4~8）；2# is optimal implementation formula, wherein ultra-fine steel fibre, glass fibre, silica optical fiber Ratio of weight and number be 1：1：8；3# is that suboptimum implements formula, wherein the weight of ultra-fine steel fibre, glass fibre, silica optical fiber It is 1 to measure portion rate：1：3；4# is more excellent implementation formula, wherein the parts by weight of ultra-fine steel fibre, glass fibre, silica optical fiber Number is than being 1：1：1；Control group is 5#, using the structure of embodiment 1, only its it is not anti-peck layer, but oversheath Thickness adds for the oversheath thickness of embodiment 1 of the present invention to be prevented pecking thickness degree, and oversheath is red, and each sequence number is same in Hunan Forest zone respectively uses 100 kilometers, obtains following data.

From upper table, it is apparent that using the present invention, due to the anti-effect for pecking layer, really obtain electric power, communications Ensure, meanwhile, anti-peck in layer pecks best performance using more anti-of silica optical fiber content；Moreover, oversheath is coloured When, pecking for birds is more subject on the contrary to be hit.

Applicant has also carried out same contrast test to other embodiments, and result of the test is basically identical；In the present invention Prevent that pecking layer tied test, its performance is all higher than the minimum performance requirement of optical cable, the industry of cable jacket material and national standard, adds Work function admirable.

The present invention is not limited to above-mentioned preferred forms, it will be appreciated that design of the invention can be by other a variety of shapes Formula is implemented to use, and they are also fallen within protection scope of the present invention.

Claims

1. a kind of anti-unfirmly closing optical cable, it includes and is distributed in more Loose tubes outside reinforcer, the protection outside Loose tube Layer, the sheath outside overcoat, the oversheath outside sheath, every Loose tube is interior to comprise at least a light guide Fiber, it is characterised in that have one to prevent pecking layer between sheath and oversheath；It is described to prevent pecking layer by weight, by following former material Material is formed：Medium density polyethylene or low density polyethylene (LDPE) or high density polyethylene (HDPE)：50 parts；The ring that the trade mark is 617 or the trade mark is 677 Oxygen tree fat：10 parts；A diameter of 10~80 μm, length/diameter ratio be 5~10 ultra-fine steel fibre and length be 0.05~0.2mm, A diameter of 0.03~0.3mm glass fibre and the silica light that a diameter of 6.5~260 μm, length is 0.03~0.3mm It is fine：40 parts；EVA hot-melt adhesive：5 parts；The cable jacket antioxidant of model 1010：3 parts；Aluminium hydroxide：15 parts；Paraffin：3 Part；Carbon black master batch：5 parts；The ultra-fine steel fibre, glass fibre, the ratio of weight and number of silica optical fiber are（1~2）：（1~ 2）：（4~8）, the silica optical fiber be by only include fibre core either containing fibre core and covering or containing fibre core, covering and Coat or the slim composition of Communication ray containing fibre core, covering, coat and dyed layer, the Communication ray is slim to be G.652, G.653, G.654, G.655, G.656, G.657 at least one of type single-mode fiber, multimode fibre are formed.

2. a kind of method for making anti-unfirmly closing optical cable, the anti-unfirmly closing optical cable includes more pine sets being distributed in outside reinforcer Pipe, the overcoat outside Loose tube, the sheath outside overcoat, the oversheath outside sheath, every An optical fiber is comprised at least in Loose tube, has one to prevent pecking layer between sheath and oversheath；It is characterized in that making side Method comprises the steps of：

5th step：The step of making anti-peck layer：By sheath extruding machine, extrusion molding thickness is 1.0 outside the sheath that the 4th step is formed The anti-of~3.0mm thickness pecks layer, it is described it is anti-peck layer by weight, anti-peck layer by what following raw material were formed：The poly- second of Midst density Alkene or low density polyethylene (LDPE) or high density polyethylene (HDPE)：50 parts；The epoxy resin that the trade mark is 617 or the trade mark is 677：10 parts；Diameter The ultra-fine steel fibre and length for being 5~10 for 10~80 μm, length/diameter ratio be 0.05~0.2mm, it is a diameter of 0.03~ 0.3mm glass fibre and the silica optical fiber that a diameter of 6.5~260 μm, length is 0.03~0.3mm：40 parts；EVA heat Melten gel：5 parts；The cable jacket antioxidant of model 1010：3 parts；Aluminium hydroxide：15 parts；Paraffin：3 parts；Carbon black master batch：5 Part；The ultra-fine steel fibre, glass fibre, the ratio of weight and number of silica optical fiber are（1~2）：（1~2）：（4~8）, institute It is by only including fibre core either containing fibre core and covering or containing fibre core, covering and coat or containing to state silica optical fiber Formed by the Communication ray of fibre core, covering, coat and dyed layer is slim, the Communication ray it is slim for G.652, G.653, G.654, G.655, G.656, G.657 at least one of type single-mode fiber, multimode fibre are formed；

3. a kind of anti-unfirmly closing optical cable, it includes at least Loose tube being distributed in outside reinforcer and at least one big filling Rope, the overcoat outside Loose tube and big gasket for packing, the sheath outside overcoat, it is outer outside sheath Sheath, every Loose tube is interior to comprise at least an optical fiber, it is characterised in that has one to prevent pecking between sheath and oversheath Layer；It is described to prevent pecking layer by weight, it is made up of following raw material：Medium density polyethylene or low density polyethylene (LDPE) or high density are gathered Ethene：50~80 parts；The epoxy resin that the trade mark is 617 or the trade mark is 677：10~20 parts；A diameter of 10~80 μm, length/straight Footpath than be 0.05~0.2mm for 5~10 ultra-fine steel fibre and length, a diameter of 0.03~0.3mm glass fibre and diameter The silica optical fiber for being 0.03~0.3mm for 6.5~260 μm, length：40~60 parts；EVA hot-melt adhesive：5~10 parts；Model For 1010 cable jacket antioxidant：3~5 parts；Aluminium hydroxide：15~25 parts；Paraffin：3~9 parts；Carbon black master batch：5~ 10 parts；The ultra-fine steel fibre, glass fibre, the ratio of weight and number of silica optical fiber are（1~2）：（1~2）：（4~8）, The silica optical fiber be by only include fibre core either containing fibre core and covering or containing fibre core, covering and coat or The slim composition of Communication ray containing fibre core, covering, coat and dyed layer, the Communication ray it is slim for G.652, G.653, G.654, G.655, G.656, G.657 at least one of type single-mode fiber, multimode fibre are formed；Or it is described it is anti-peck layer by Parts by weight meter, anti-peck layer by what following raw material were formed：Medium density polyethylene or low density polyethylene (LDPE) or high density polyethylene (HDPE)：50 Part；The epoxy resin that the trade mark is 617 or the trade mark is 677：10 parts；A diameter of 10~80 μm, length/diameter ratio be 5~10 it is super Thin steel fibre and length are 0.05~0.2mm, a diameter of 0.03~0.3mm glass fibre and a diameter of 6.5~260 μm, long Spend the silica optical fiber for 0.03~0.3mm：40 parts；EVA hot-melt adhesive：5 parts；The cable jacket of model 1010 is with anti-oxidant Agent：3 parts；Aluminium hydroxide：15 parts；Paraffin：3 parts；Carbon black master batch：5 parts；The ultra-fine steel fibre, glass fibre, silica light Fine ratio of weight and number is（1~2）：（1~2）：（4~8）, the silica optical fiber is by only including fibre core or containing fibre The Communication ray of core and covering either containing fibre core, covering and coat or containing fibre core, covering, coat and dyed layer is slim Composition, the Communication ray it is slim for G.652, G.653, G.654, G.655, G.656, G.657 type single-mode fiber, multimode fibre At least one of form.

A kind of 4. method for making a kind of anti-unfirmly closing optical cable described in claim 3, it is characterised in that it is comprised the steps of：