CN104656216A

CN104656216A - Bird pecking prevented optical cable and manufacturing method thereof

Info

Publication number: CN104656216A
Application number: CN201510103904.1A
Authority: CN
Inventors: 沈群华
Original assignee: Individual
Current assignee: Zhengzhou Tianhe Communication Technology Co Ltd
Priority date: 2015-03-10
Filing date: 2015-03-10
Publication date: 2015-05-27
Anticipated expiration: 2035-03-10
Also published as: CN104656216B

Abstract

The invention belongs to the technical field of cables and particularly relates to a bird pecking prevented optical cable. The bird pecking prevented optical cable comprises a plurality of loose sleeves, a protective layer, an inner protecting layer and an outer sheath, wherein the loose sleeves are distributed outside a reinforcing member, the protective layer is located outside the loose sleeves, the inner protecting layer is located outside the protective layer, and the outer sheath is located outside the inner protecting layer; each loose sleeve at least contains one optical fiber. The bird pecking prevented optical cable is characterized in that a bird pecking preventing layer is arranged between the inner protecting layer and the outer sheath and is prepared from the following raw materials: medium-density polyethylene or low-density polyethylene or high-density polyethylene, epoxy resin, superfine steel fibers or glass fibers or silica optical fibers, an EVA (Ethylene Vinyl acetate Copolymer) hot-melt adhesive, an antioxidant, aluminum hydroxide, paraffin and carbon black master batches. The invention further discloses a manufacturing method of the bird pecking prevented optical cable. The bird pecking prevented optical cable and the manufacturing method thereof have the following main beneficial effects that the manufacturing is easy, the bird pecking preventing effect is good, the production speed is high, and finished products are high in qualified rate and are more pressure-resistant and more impact-resistant.

Description

Anti-unfirmly closing optical cable and manufacture method thereof

Technical field

The invention belongs to technical field of cables, especially relate to the method for making of anti-unfirmly closing optical cable, anti-unfirmly closing cable and their correspondences.

Background technology

For the existence conformed, grow birds near forest zone mostly length have sharp puff, they can peck bad cable, communications optical cable cable sheath and insulation course.In cable and communications optical cable, for the ease of identifying, usual insulation course and Loose tube have multiple color, after pipping sheath, the insulation course of shades of colour and Loose tube look like pattern insect, birds are eaten by mistake and often peck bad insulated wire cores, optical fiber, even peck disconnected copper conductor, cause electric power/communicate obstructed.Sleet enters cable inner by broken sheath, in the course of time, causes the communication failure of unknown cause., as Hunan, Yunnan, Zhejiang, Guilin etc., there is the fault of repeatedly being broken cable by unfirmly closing, caused immeasurable loss in many forest lands district at home.

For this reason, domesticly large quantifier elimination has been carried out.Name is called: anti-pecking 8-shaped photoelectrical composite cable, the patent of Authorization Notice No.: CN202041686U, by sheath, copper cash bed course, copper conductor, pine cover filled composite, optical fiber, Loose tube, cable core filled composite, reinforcement bed course, reinforcement, auxiliary reinforcing element, moisture-proof layer forms, optical fiber is in Loose tube, Loose tube is centered around around reinforcement, wrapped up by band, cable core filled composite is in band, it is moisture-proof layer outside band, they form cable core, with the copper conductor bed course sheath being surrounded by copper conductor, they are formed 8-shaped sheath by sheath, its sheath is red.Can available protecting cable when outdoor is maked somebody a mere figurehead not by unfirmly closing.

Name is called: the patent of anti-unfirmly closing indoor and outdoor integration photoelectricity composite cable, Authorization Notice No.: CN203165550U, it comprises flame-retardant sheath material, optical fiber, reinforcement, wire, painting plastic composite strip, insulation course and red PE sheath, optical fiber 7 is at the center of flame-retardant sheath material 6, both sides are reinforcements 5, and after wire 4 is stranded together with flame-retardant sheath material 6 after being indulged bag by painting plastic composite strip 3,1 carries out outer protecting with red PE sheath.This product is mainly used in being connected between mobile base station with launching tower, connect in machine room, can reach and avoid local power failure or battery pack fault and cause the effect of power-off of base station; Reduce networking expense, avoid secondary to connect up, can also anti-unfirmly closing.

Name is called: the patent of outdoor nonmetal bird pecking prevention aerial optical cable, Authorization Notice No.: CN202067003U, it comprises optical fiber, Loose tube, fine cream, central reinforce member, sheath, Loose tube (8) containing optical fiber (6) is centered around central reinforce member (2) around, fine cream (7) is had in Loose tube (8), Loose tube (8) is wrapped up by band (5), overcoat sheath (9), is characterized in that: have material water-proof material (4) in band (5), and sheath (9) is red pe sheath.

Name is called: self-bearing anti-bird pecking overhead aluminum core composite optical cable, the patent of Authorization Notice No.: CN202258545U, it comprises sheath, aluminum conductor, cable core filled composite, reinforcement, optical fiber, pine cover filled composite, Loose tube, band, moisture-proof layer and steel strand wires, optical fiber (7) is in Loose tube (9), pine cover filled composite (8) is had in Loose tube (9), Loose tube (9) and aluminum conductor (3) twist together around reinforcement (6) and are wrapped up by band (11), it is characterized in that: outside band (11), have moisture-proof layer (12) and the red sheath (1) of 8 fonts, steel strand wires (13) are had in the red sheath of minor diameter.

Name is called: the patent of anti-unfirmly closing self-bearing type butterfly leading in cable, Authorization Notice No.: CN202649559U, it comprises optical fiber, reinforcement and oversheath, reinforcement is in optical fiber both sides, be rolled into butterfly by oversheath together, it is characterized in that: oversheath (4) side is also connected with the red sheath (5) that wire reinforcement (1) is housed.

Name is called:, the patent of Authorization Notice No.: CN202523458U, it is characterized in that: Loose tube and copper conductor are centered around around reinforcement, optical fiber and pine cover filled composite are in Loose tube, they are all wrapped up by band, outside is moisture-proof layer, it is characterized in that: moisture-proof layer (11) sheath is outward red sheath.

Name is called: the patent of a kind of anti-unfirmly closing optical cable, Authorization Notice No.: CN203133348U, comprise cable core and oversheath, there is in cable core the fiber unit and central reinforce member, gasket for packing that are jointly made up of optical fiber, fine cream, ferrule, it is characterized in that being provided with successively between cable core and oversheath and prick layer and wrinkle steel belt layer, oversheath is that red sheath and yellow sheath are symmetrical arranged the structure longitudinally reversed.Oversheath adopts red sheath and yellow sheath to be symmetrical arranged the structure longitudinally reversed, and outer likeness in form is wrapped in the snake on optical cable, and bird pest is afraid of, dare not fly to gnaw on optical cable surface to peck optical cable again, makes optical cable not fragile, increases the service life.

Name is called: the patent of novel anti-unfirmly closing colour code optical cable, Authorization Notice No.: CN203133349U, comprise cable core and oversheath, there is in cable core the fiber unit and central reinforce member, gasket for packing that are jointly made up of optical fiber, fine cream, ferrule, it is characterized in that being provided with successively between cable core and oversheath and prick layer, inner sheath and wrinkle steel belt layer, the structure of oversheath is the red sheath being longitudinally equidistantly provided with several yellow colour codes.

Name is called: overground cable, the Authorization Notice No. with anti-unfirmly closing function: the patent of CN203325538U, comprises as the steel wire (1) of self-supporting line, eight copper conductor (2) and red oversheath bodies (3) being coated with polyethylene layer (21); The stranded formation four between two of described eight copper conductors (2) is to the twisted wire as information communication to (4), and described four twisted pair wire centering first twisted wires are arranged in order and stranded formation conductive cable core (5) (44) (43) and the 4th twisted wire (42), the 3rd twisted wire counterclockwise to (41), the second twisted wire; One polyester belt (6) is wrapped in described conductive cable core (5) outside surface, and an inner restrictive coating (7) extrudes in described polyester belt (6) outside surface; Described red oversheath body (3) comprises the first sub-sheath (31) and the second sub-sheath (32), connect muscle portion (33) by one between described first sub-sheath (31) and the second sub-sheath (32) to connect, described first sub-sheath (31) is coated on described inner restrictive coating (7) outside surface, and described second sub-sheath (32) is coated on described steel wire (1) outside surface.

Name is called: the patent of Self-bearing-type overhead anti-unfirmly closing photoelectricity composite cable, Authorization Notice No.: CN203260336U, it comprises aluminum conductor, red PE pe sheath layer, PBT Loose tube, metal reinforcement, steel strand wires, PE sheath, metal compound belt, red PE protective cover material, it is characterized in that: optical fiber carries out the protection of pine cover and makes PBT Loose tube (3), and PBT Loose tube is filled with filling material in (3); Through stranded, PBT Loose tube (3) is centered around metal reinforcement (4) outward, it is the metal compound belt (7) of vertical bag armouring outside cable core after stranding, after metal compound belt (7) armouring, outside is that red PE protective cover material (2) is housed, the red PE pe sheath layer (2) of aluminum conductor (1), steel strand wires (5), PE sheath (6), they are arranged in red PE pe sheath layer (2) side by side.

Name is called: Self-bearing type bird-pecking-proof overhead integrated leading-in optical cable, the patent of Authorization Notice No.: CN202217541U, it comprises central reinforce member, feed line, material water-proof material in cable, band, communication metal wire pair, moisture-proof layer, containing the Loose tube of optical fiber, sheath, steel strand wires, containing the Loose tube (10) of optical fiber or other light unit stranded around central reinforce member (2), outside is band (6) and moisture-proof layer (8), it is characterized in that: feed line (4) with communicate stranded around central reinforce member (2) to (7) with metal wire, material water-proof material in cable (5) is had in band (6), it is the poly-second sheath (11) of 8 font redness outside moisture-proof layer (8), the minor diameter cover inner sleeve of the red pe sheath (11) of 8 fonts has steel strand wires (12).

Above-mentioned patent, makes cable outermost layer be all or part of redness or other color bar none, takes the photograph birds for prestige, applicant thinks, only the color of sheath is that redness becomes difference technical characteristic, first should not become utility model patent, because it is not shape and the structure of patent protection; Secondly, red or other color can prestige neither be taken the photograph for all forest zone birds, on the contrary, because cable can swing or shake when there being wind, it is flower pink bollworm that major part birds take for, therefore, eye-catching cable is more subject to the attack of birds, therefore the failure rate causing cable to occur because of unfirmly closing is higher.

Name is called: a kind of anti-unfirmly closing All Dielectric self-support, the patent of Authorization Notice No.: CN203054288U, it comprises optical fiber, Loose tube, fine cream, central reinforce member, sheath, aramid layers, outer jacket, Loose tube (3) containing optical fiber (1) is centered around central reinforce member (4) around, fine cream (2) is had in Loose tube (3), Loose tube (3) is by bundle yarn (6) wrapping, between sheath (7) and Loose tube (3), there is cable core filling material (5), it is characterized in that: aramid layers (8) is evenly distributed in sheath (7) around, last outer jacket (9) adopts nylon sheath wire material.

The cost of nylon sheath wire material itself is 15-20 times of polyethylene sheath material, and process velocity is extremely slow, product qualified rate only about 50%, and simultaneous manufacturing thickness can only at below 0.8mm, need repeatedly to process just to reach anti-requirement of pecking needs.

Name is called: the patent of communication cable preventing damages from rats, ants and birds, Authorization Notice No.: CN201094125Y, comprise cable core (1), cable core (1) is made up of (2) some lines to having band (21), line, is characterized in that: described cable core (1) is provided with band (3), aluminium strip (4) and high molecular weight high density polyolefin jacket (5) outward from the inside to the outside successively by two conductors (22) and conductor (22) insulation course outward (23) is stranded forms (2).

Name is called: the patent of anti-unfirmly closing telecommunication cable, Authorization Notice No.: CN201017714Y, comprise core, polyethylene layer, polyester lapping layer, plastic-aluminum mask tape, polyethylene sheath, it is characterized in that: outside core, be surrounded by polyethylene layer, polyester lapping layer, plastic-aluminum mask tape, polyethylene sheath, armor, outer protective polyethylene cover successively.The outside of this patent is many, and one deck scribbles the steel band of preserver, the high-molecular polythene that the moisture vapor transmission coefficient that outermost is many one deck is thicker is little, thus make cable life extend more than one times; And when electric field intensity is higher, shielding character improves nearly one times than original cable.

In above-mentioned patent, skin have employed high density or macromolecule polyolefin jacket, is conventional material, fact proved in prior art, the extremely difficult effect playing effectively opposing birds invasion and attack.

For this reason, what user expected to have a better effect anti-ly peck cable, anti-optical cable of pecking occurs.

Summary of the invention

In order to solve the problem, an object of the present invention discloses anti-unfirmly closing optical cable; Two of object of the present invention discloses anti-unfirmly closing cable; Three of object of the present invention discloses the method for making of anti-unfirmly closing optical cable; Four of object of the present invention discloses the method for making of anti-unfirmly closing cable; They realize by the following technical solutions.

In embodiment 1 of the present invention, anti-unfirmly closing optical cable, it comprises and is distributed in many Loose tube 2 outside reinforcement 3, is positioned at protective layer 4 outside Loose tube, is positioned at sheath 5 outside protective layer, be positioned at the oversheath 7 outside sheath, a light transmitting fiber 1 is at least comprised in every root Loose tube, it is characterized in that having one between sheath and oversheath prevents pecking layer 6, describedly anti-peck layer by weight, be made up of following starting material: medium density polyethylene or Low Density Polyethylene or high density polyethylene: 50 ~ 80 parts; The trade mark be 617 or the trade mark be the epoxy resin of 677: 10 ~ 20 parts; Diameter is 10 ~ 80 μm, length/diameter than be 5 ~ 20 extra-fine steel fiber or length be 0.1 ~ 1mm, diameter is that the glass fibre of 0.03 ~ 1mm or diameter are 6.5 ~ 260 μm, length is the silica optical fiber of 0.03 ~ 1mm: 40 ~ 60 parts; EVA hot-melt adhesive: 5 ~ 10 parts; Model is the cable jacket antioxidant of 1010: 3 ~ 5 parts; Aluminium hydroxide: 15 ~ 25 parts; Paraffin: 3 ~ 9 parts; Carbon black master batch: 5 ~ 10 parts.

In embodiment 2 of the present invention, anti-unfirmly closing optical cable, it comprises and is distributed at least one Loose tube 2 outside reinforcement 3 and at least one large gasket for packing 21, be positioned at the protective layer 4 outside Loose tube and large gasket for packing, be positioned at the sheath 5 outside protective layer, be positioned at the oversheath 7 outside sheath, a light transmitting fiber 1 is at least comprised in every root Loose tube, it is characterized in that having one between sheath and oversheath prevents pecking layer 6, describedly anti-peck layer by weight, be made up of following starting material: medium density polyethylene or Low Density Polyethylene or high density polyethylene: 50 ~ 80 parts, the trade mark be 617 or the trade mark be the epoxy resin of 677: 10 ~ 20 parts, diameter is 10 ~ 80 μm, length/diameter than be 5 ~ 20 extra-fine steel fiber or length be 0.1 ~ 1mm, diameter is that the glass fibre of 0.03 ~ 1mm or diameter are 6.5 ~ 260 μm, length is the silica optical fiber of 0.03 ~ 1mm: 40 ~ 60 parts, EVA hot-melt adhesive: 5 ~ 10 parts, model is the cable jacket antioxidant of 1010: 3 ~ 5 parts, aluminium hydroxide: 15 ~ 25 parts, paraffin: 3 ~ 9 parts, carbon black master batch: 5 ~ 10 parts.

In embodiment 3 of the present invention, anti-unfirmly closing optical cable, it comprises the many Loose tube 2 be distributed in outside reinforcement 3, be arranged in the little gasket for packing 22 of the external series gap of adjacent Loose tube, be positioned at the protective layer 4 outside Loose tube and little gasket for packing, be positioned at the sheath 5 outside protective layer, be positioned at the oversheath 7 outside sheath, a light transmitting fiber 1 is at least comprised in every root Loose tube, described light transmitting fiber is positioned among fibre ribbon, fibre ribbon is positioned at Loose tube, it is characterized in that having one between sheath and oversheath prevents pecking layer 6, describedly anti-peck layer by weight, be made up of following starting material: medium density polyethylene or Low Density Polyethylene or high density polyethylene: 50 ~ 80 parts, the trade mark be 617 or the trade mark be the epoxy resin of 677: 10 ~ 20 parts, diameter is 10 ~ 80 μm, length/diameter than be 5 ~ 20 extra-fine steel fiber or length be 0.1 ~ 1mm, diameter is that the glass fibre of 0.03 ~ 1mm or diameter are 6.5 ~ 260 μm, length is the silica optical fiber of 0.03 ~ 1mm: 40 ~ 60 parts, EVA hot-melt adhesive: 5 ~ 10 parts, model is the cable jacket antioxidant of 1010: 3 ~ 5 parts, aluminium hydroxide: 15 ~ 25 parts, paraffin: 3 ~ 9 parts, carbon black master batch: 5 ~ 10 parts.

Anti-unfirmly closing optical cable, it comprises and is distributed at least one Loose tube 2 outside reinforcement 3 and at least one large gasket for packing, be arranged in the external series gap of adjacent Loose tube or the little gasket for packing of the external series gap of adjacent large gasket for packing or the external series gap of adjacent Loose tube and large gasket for packing, be positioned at the protective layer 4 outside Loose tube and large gasket for packing and little gasket for packing, be positioned at the sheath 5 outside protective layer, be positioned at the oversheath 7 outside sheath, a light transmitting fiber 1 is at least comprised in every root Loose tube, described light transmitting fiber is positioned among fibre ribbon, fibre ribbon is positioned at Loose tube, it is characterized in that having one between sheath and oversheath prevents pecking layer 6, describedly anti-peck layer by weight, be made up of following starting material: medium density polyethylene or Low Density Polyethylene or high density polyethylene: 50 ~ 80 parts, the trade mark be 617 or the trade mark be the epoxy resin of 677: 10 ~ 20 parts, diameter is 10 ~ 80 μm, length/diameter than be 5 ~ 20 extra-fine steel fiber or length be 0.1 ~ 1mm, diameter is that the glass fibre of 0.03 ~ 1mm or diameter are 6.5 ~ 260 μm, length is the silica optical fiber of 0.03 ~ 1mm: 40 ~ 60 parts, EVA hot-melt adhesive: 5 ~ 10 parts, model is the cable jacket antioxidant of 1010: 3 ~ 5 parts, aluminium hydroxide: 15 ~ 25 parts, paraffin: 3 ~ 9 parts, carbon black master batch: 5 ~ 10 parts.

In embodiment 4 of the present invention, anti-unfirmly closing optical cable, it comprises Loose tube 2, be positioned at the water blocking layer 8 outside Loose tube, be positioned at the protective layer 4 outside water blocking layer, be positioned at the reinforcement 3 outside protective layer, be positioned at the oversheath 7 outside reinforcement and protective layer, a light transmitting fiber 1 is at least comprised in Loose tube, light transmitting fiber be with the formal distribution of loose shape in Loose tube or be arranged in the fibre ribbon that is placed on Loose tube, it is characterized in that having one between protective layer and oversheath prevents pecking layer 6, reinforcement is arranged in be prevented pecking layer, describedly anti-peck layer by weight, be made up of following starting material: medium density polyethylene or Low Density Polyethylene or high density polyethylene: 50 ~ 80 parts, the trade mark be 617 or the trade mark be the epoxy resin of 677: 10 ~ 20 parts, diameter is 10 ~ 80 μm, length/diameter than be 5 ~ 20 extra-fine steel fiber or length be 0.1 ~ 1mm, diameter is that the glass fibre of 0.03 ~ 1mm or diameter are 6.5 ~ 260 μm, length is the silica optical fiber of 0.03 ~ 1mm: 40 ~ 60 parts, EVA hot-melt adhesive: 5 ~ 10 parts, model is the cable jacket antioxidant of 1010: 3 ~ 5 parts, aluminium hydroxide: 15 ~ 25 parts, paraffin: 3 ~ 9 parts, carbon black master batch: 5 ~ 10 parts.

In embodiment 5 of the present invention, anti-unfirmly closing optical cable, it comprises Loose tube 2, be positioned at the multi reinforcements 3 of living outside Loose tube and by Loose tube integral coating, by securing for multi reinforcements wrapping layer 9, be positioned at the sheath 5 outside wrapping layer, be positioned at the oversheath 7 outside sheath, a light transmitting fiber 1 is at least comprised in Loose tube, light transmitting fiber be with the formal distribution of loose shape in Loose tube or be arranged in the fibre ribbon that is placed on Loose tube, it is characterized in that having one between described sheath and oversheath prevents pecking layer 6, describedly anti-peck layer by weight, be made up of following starting material: medium density polyethylene or Low Density Polyethylene or high density polyethylene: 50 ~ 80 parts, the trade mark be 617 or the trade mark be the epoxy resin of 677: 10 ~ 20 parts, diameter is 10 ~ 80 μm, length/diameter than be 5 ~ 20 extra-fine steel fiber or length be 0.1 ~ 1mm, diameter is that the glass fibre of 0.03 ~ 1mm or diameter are 6.5 ~ 260 μm, length is the silica optical fiber of 0.03 ~ 1mm: 40 ~ 60 parts, EVA hot-melt adhesive: 5 ~ 10 parts, model is the cable jacket antioxidant of 1010: 3 ~ 5 parts, aluminium hydroxide: 15 ~ 25 parts, paraffin: 3 ~ 9 parts, carbon black master batch: 5 ~ 10 parts.

Anti-unfirmly closing optical cable described above, it is characterized in that the material of described wrapping layer is that yarn pricked by polyester or other has the yarn class material of some strength, it is coated on outside multi reinforcements by the mode of spiral winding, makes multi reinforcements position relatively fixing.

In embodiment 6 of the present invention, anti-unfirmly closing cable, includes cable conductor and is positioned at outermost oversheath, and the inside that it is characterized in that being close to oversheath has one and prevents pecking layer, or the inside being close to oversheath has one and anti-pecks layer, there is a protective layer being close to anti-inside of pecking layer; Describedly anti-peck layer by weight, be made up of following starting material: medium density polyethylene or Low Density Polyethylene or high density polyethylene: 50 ~ 80 parts; The trade mark be 617 or the trade mark be the epoxy resin of 677: 10 ~ 20 parts; Diameter is 10 ~ 80 μm, length/diameter than be 5 ~ 20 extra-fine steel fiber or length be 0.1 ~ 1mm, diameter is that the glass fibre of 0.03 ~ 1mm or diameter are 6.5 ~ 260 μm, length is the silica optical fiber of 0.03 ~ 1mm: 40 ~ 60 parts; EVA hot-melt adhesive: 5 ~ 10 parts; Model is the cable jacket antioxidant of 1010: 3 ~ 5 parts; Aluminium hydroxide: 15 ~ 25 parts; Paraffin: 3 ~ 9 parts; Carbon black master batch: 5 ~ 10 parts.

Anti-unfirmly closing optical cable described above, is characterized in that the material of described reinforcement is steel wire or fiberglass-reinforced plastic lever.

Anti-unfirmly closing optical cable described above, is characterized in that the material of described Loose tube is polybutylene terephthalate or modified polypropene.

Anti-unfirmly closing optical cable described above or anti-unfirmly closing cable, is characterized in that the material of described protective layer is steel band or aluminium strip.

Anti-unfirmly closing optical cable described above, is characterized in that the material of described sheath is Low Density Polyethylene or medium density polyethylene or high density polyethylene.

Anti-unfirmly closing optical cable described above, is characterized in that the material of described oversheath is Low Density Polyethylene or medium density polyethylene or high density polyethylene or nylon.

Anti-unfirmly closing optical cable described above, is characterized in that described light transmitting fiber is single mode or multimode optical fiber, and its model is G.652 type or G.655 type or G.657 type or A1a type or A1b type further.

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

Anti-unfirmly closing optical cable described above, is characterized in that the material of described large gasket for packing is polypropylene or tygon or polypropylene and poly potpourri.

Anti-unfirmly closing optical cable described above, is characterized in that the material of described little gasket for packing is polypropylene or tygon or polypropylene and poly potpourri.

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

Anti-unfirmly closing optical cable described above, is characterized in that being filled with in the outer gap of described Loose tube the outer filler that blocks water, and the filler that blocks water outward is ointment or water-proofing powder or water blocking yarn.

The method for making of the anti-unfirmly closing optical cable in the invention process example 1, is characterized in that it comprises following steps:

The first step: the step making colored optical fiber: the colored optical fiber naked colouring optical fibres being become different colours;

Second step: the step making Loose tube: form Loose tube by secondary coated extruding machine, and the colored optical fiber of different colours is placed in Loose tube, carry out being wound Loose tube finished product, the length of colored optical fiber in Loose tube is made to be 1.002 ~ 1.015 times of Loose tube length, the material of Loose tube is polybutylene terephthalate or modified polypropene, adds Loose tube extrusion molding special color master batch when making Loose tube in the material of Loose tube; Repeated multiple times, form the Loose tube of many different colours;

3rd step: the step making optical cable core: second step is made the many Loose tube obtained, the reinforcement purchased carries out stranding in SZ stranding machine, reinforcement is made to be positioned at central authorities, many Loose tube are positioned at outside reinforcement, and the stranded pitch of Loose tube SZ is 9 ~ 18 times of reinforcement and Loose tube diameter sum;

4th step: the step making sheath: the optical cable core first steel band or aluminium strip material being longitudinally coated on the 3rd step formation forms protective layer outward, form sheath at the outer extrusion molding Low Density Polyethylene of protective layer or medium density polyethylene or high-density polyethylene material again, the thickness of sheath is 0.8 ~ 2.0mm;

5th step: make anti-step of pecking layer: the outer extrusion molding thickness of sheath formed in the 4th step by sheath extruding machine is that the anti-of 1.0 ~ 3.0mm thickness pecks layer, describedly anti-peck layer by weight, what be made up of following starting material anti-ly pecks layer: medium density polyethylene or Low Density Polyethylene or high density polyethylene: 50 ~ 80 parts; The trade mark be 617 or the trade mark be the epoxy resin of 677: 10 ~ 20 parts; Diameter is 10 ~ 80 μm, length/diameter than be 5 ~ 20 extra-fine steel fiber or length be 0.1 ~ 1mm, diameter is that the glass fibre of 0.03 ~ 1mm or diameter are 6.5 ~ 260 μm, length is the silica optical fiber of 0.03 ~ 1mm: 40 ~ 60 parts; EVA hot-melt adhesive: 5 ~ 10 parts; Model is the cable jacket antioxidant of 1010: 3 ~ 5 parts; Aluminium hydroxide: 15 ~ 25 parts; Paraffin: 3 ~ 9 parts; Carbon black master batch: 5 ~ 10 parts;

6th step: make the step of oversheath: what is formed in the 5th step by sheath extruding machine anti-ly pecks the layer coated jacket material of extrusion molding outward, and oversheath thickness is 1.4 ~ 3.0mm; The material of oversheath is Low Density Polyethylene or medium density polyethylene or high density polyethylene.

The method for making of the anti-unfirmly closing optical cable in the invention process example 2, is characterized in that it comprises following steps:

3rd step: the step making large gasket for packing: polypropylene or the polypropylene of tygon or 85% percentage by weight and the poly potpourri of 15% percentage by weight are put into φ 45 or φ 60 extruding machine, extrusion molding stretches and forms the equally large large gasket for packing of diameter and gained Loose tube in second step;

4th step: the step making optical cable core: second step is made large gasket for packing obtained in the many Loose tube obtained, the reinforcement purchased, the 3rd step and carry out stranding in SZ stranding machine, reinforcement is made to be positioned at central authorities, many Loose tube and large gasket for packing are positioned at outside reinforcement, and the stranded pitch of SZ is 9 ~ 18 times of reinforcement and Loose tube diameter sum;

5th step: the step making sheath: the optical cable core first steel band or aluminium strip material being longitudinally coated on the 4th step formation forms protective layer outward, form sheath at the outer extrusion molding Low Density Polyethylene of protective layer or medium density polyethylene or high-density polyethylene material again, the thickness of sheath is 0.8 ~ 2.0mm;

6th step: make anti-step of pecking layer: the outer extrusion molding thickness of sheath formed in the 5th step by sheath extruding machine is that the anti-of 1.0 ~ 3.0mm thickness pecks layer, describedly anti-peck layer by weight, what be made up of following starting material anti-ly pecks layer: medium density polyethylene or Low Density Polyethylene or high density polyethylene: 50 ~ 80 parts; The trade mark be 617 or the trade mark be the epoxy resin of 677: 10 ~ 20 parts; Diameter is 10 ~ 80 μm, length/diameter than be 5 ~ 20 extra-fine steel fiber or length be 0.1 ~ 1mm, diameter is that the glass fibre of 0.03 ~ 1mm or diameter are 6.5 ~ 260 μm, length is the silica optical fiber of 0.03 ~ 1mm: 40 ~ 60 parts; EVA hot-melt adhesive: 5 ~ 10 parts; Model is the cable jacket antioxidant of 1010: 3 ~ 5 parts; Aluminium hydroxide: 15 ~ 25 parts; Paraffin: 3 ~ 9 parts; Carbon black master batch: 5 ~ 10 parts;

7th step: make the step of oversheath: what is formed in the 6th step by sheath extruding machine anti-ly pecks the layer coated jacket material of extrusion molding outward, and oversheath thickness is 1.4 ~ 3.0mm; The material of oversheath is Low Density Polyethylene or medium density polyethylene or high density polyethylene.

The method for making of the anti-unfirmly closing optical cable in the invention process example 4, is characterized in that it comprises following steps:

Second step: the step making Loose tube: form Loose tube by secondary coated extruding machine, and the colored optical fiber of different colours is placed in Loose tube, carry out being wound Loose tube finished product, the length of colored optical fiber in Loose tube is made to be 1.002 ~ 1.015 times of Loose tube length, the material of Loose tube is polybutylene terephthalate or modified polypropene, adds Loose tube extrusion molding special color master batch when making Loose tube in the material of Loose tube;

3rd step: make anti-step of pecking layer: first get waterstop or water blocking yarn material and be coated on outside Loose tube that second step formed and form water blocking layer; Get steel band or aluminium strip to be more longitudinally coated on outside water blocking layer and to form protective layer; Getting two reinforcements is again placed on outside protective layer; Then be that the anti-of 1.0 ~ 3.0mm thickness pecks layer by sheath extruding machine at the outer extrusion molding thickness of protective layer and reinforcement, describedly anti-peck layer by weight, what be made up of following starting material anti-ly pecks layer: medium density polyethylene or Low Density Polyethylene or high density polyethylene: 50 ~ 80 parts; The trade mark be 617 or the trade mark be the epoxy resin of 677: 10 ~ 20 parts; Diameter is 10 ~ 80 μm, length/diameter than be 5 ~ 20 extra-fine steel fiber or length be 0.1 ~ 1mm, diameter is that the glass fibre of 0.03 ~ 1mm or diameter are 6.5 ~ 260 μm, length is the silica optical fiber of 0.03 ~ 1mm: 40 ~ 60 parts; EVA hot-melt adhesive: 5 ~ 10 parts; Model is the cable jacket antioxidant of 1010: 3 ~ 5 parts; Aluminium hydroxide: 15 ~ 25 parts; Paraffin: 3 ~ 9 parts; Carbon black master batch: 5 ~ 10 parts; Wherein, two reinforcements to place and minor increment between reinforcement and protective layer is 0.2mm in protective layer external symmetry, and reinforcement is 0.4mm apart from anti-minor increment of pecking layer outer rim;

4th step: make the step of oversheath: what is formed in the 3rd step by sheath extruding machine anti-ly pecks the layer coated jacket material of extrusion molding outward; The material of oversheath is Low Density Polyethylene or medium density polyethylene or high density polyethylene or nylon 12; When the material of oversheath be Low Density Polyethylene or medium density polyethylene or high density polyethylene time, 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, prevent pecking layer owing to having, prevent that pecking layer has special formula, it can carry out extrusion molding by extruding machine on the one hand, easy to process, speed of production is fast, φ 90 extruding machine produces the cable that diameter is below 25mm and optical cable, speed reaches more than 60 ms/min, and product qualified rate is high, because anti-pecking in layer has extra-fine steel fiber or glass fibre or silica optical fiber, it has extremely strong stabs performance, birds carry out pecking hit first time after, its puff will be injured, so there is no again peck the desire of hitting, cable is effectively protected, through the use in nearly 3 years forest zones, do not have again and occur because birds peck bad cable or optical cable and interrupt electric power, the accident of communication occurs, meanwhile, of the present inventionly anti-peck layer there is stronger anti-side pressure and impact resistance.

The present invention is easy to make, do not need to add expensive equipment.

The present invention has following main beneficial effect: easily make, anti-peck effective, speed of production is fast, product qualified rate is high, more withstand voltage and more shock-resistant.

Accompanying drawing explanation

Fig. 1 is the cross-sectional structure schematic diagram of the invention process example 1.

Fig. 2 is the cross-sectional structure schematic diagram of the invention process example 2.

Fig. 3 is the cross-sectional structure schematic diagram of the invention process example 3.

Fig. 4 is the cross-sectional structure schematic diagram of the invention process example 4.

Fig. 5 is the cross-sectional structure schematic diagram of the invention process example 5.

Embodiment

The invention process example 1 to embodiment 5 is the embodiment of anti-unfirmly closing optical cable and preparation method thereof; The invention process example 6 is the embodiment of anti-unfirmly closing cable and preparation method thereof.

embodiment 1

Ask for an interview Fig. 1, anti-unfirmly closing optical cable, it comprises and is distributed in four Loose tube 2 outside reinforcement 3, is positioned at protective layer 4 outside Loose tube, is positioned at sheath 5 outside protective layer, be positioned at the oversheath 7 outside sheath, six roots of sensation light transmitting fiber 1 is comprised in every root Loose tube, it is characterized in that having between sheath and oversheath one and anti-ly peck layer 6, describedly anti-ly peck layer by weight, be made up of following starting material: medium density polyethylene or Low Density Polyethylene or high density polyethylene: 50 ~ 80 parts; The trade mark be 617 or the trade mark be the epoxy resin of 677: 10 ~ 20 parts; Diameter is 10 ~ 80 μm, length/diameter than be 5 ~ 20 extra-fine steel fiber or length be 0.1 ~ 1mm, diameter is that the glass fibre of 0.03 ~ 1mm or diameter are 6.5 ~ 260 μm, length is the silica optical fiber of 0.03 ~ 1mm: 40 ~ 60 parts; EVA hot-melt adhesive: 5 ~ 10 parts; Model is the cable jacket antioxidant of 1010: 3 ~ 5 parts; Aluminium hydroxide: 15 ~ 25 parts; Paraffin: 3 ~ 9 parts; Carbon black master batch: 5 ~ 10 parts.

Certainly, the Loose tube described in this embodiment can be many, at least comprises a light transmitting fiber in every root Loose tube.

The method for making of anti-unfirmly closing optical cable, is characterized in that it comprises following steps:

embodiment 2

Ask for an interview Fig. 2, anti-unfirmly closing optical cable, it comprises and is distributed in four Loose tube 2 outside reinforcement 3 and large gasket for packing 21, is positioned at protective layer 4 outside Loose tube and large gasket for packing, is positioned at sheath 5 outside protective layer, be positioned at the oversheath 7 outside sheath, a light transmitting fiber 1 is at least comprised in every root Loose tube, it is characterized in that having one between sheath and oversheath prevents pecking layer 6, describedly anti-peck layer by weight, be made up of following starting material: medium density polyethylene or Low Density Polyethylene or high density polyethylene: 50 ~ 80 parts; The trade mark be 617 or the trade mark be the epoxy resin of 677: 10 ~ 20 parts; Diameter is 10 ~ 80 μm, length/diameter than be 5 ~ 20 extra-fine steel fiber or length be 0.1 ~ 1mm, diameter is that the glass fibre of 0.03 ~ 1mm or diameter are 6.5 ~ 260 μm, length is the silica optical fiber of 0.03 ~ 1mm: 40 ~ 60 parts; EVA hot-melt adhesive: 5 ~ 10 parts; Model is the cable jacket antioxidant of 1010: 3 ~ 5 parts; Aluminium hydroxide: 15 ~ 25 parts; Paraffin: 3 ~ 9 parts; Carbon black master batch: 5 ~ 10 parts.

Certainly, the Loose tube described in this embodiment can be many, at least one; A light transmitting fiber is at least comprised in every root Loose tube; Large gasket for packing at least one.

The method for making of the anti-unfirmly closing optical cable in this embodiment, is characterized in that it comprises following steps:

embodiment 3

Ask for an interview Fig. 3, anti-unfirmly closing optical cable, it comprises four Loose tube 2 be distributed in outside reinforcement 3, be arranged in the little gasket for packing 22 of the external series gap of adjacent Loose tube, be positioned at the protective layer 4 outside Loose tube and little gasket for packing, be positioned at the sheath 5 outside protective layer, be positioned at the oversheath 7 outside sheath, ten six roots of sensation light transmitting fibers 1 are comprised in every root Loose tube, described light transmitting fiber is positioned among fibre ribbon, fibre ribbon is positioned at Loose tube, it is characterized in that having one between sheath and oversheath prevents pecking layer 6, describedly anti-peck layer by weight, be made up of following starting material: medium density polyethylene or Low Density Polyethylene or high density polyethylene: 50 ~ 80 parts, the trade mark be 617 or the trade mark be the epoxy resin of 677: 10 ~ 20 parts, diameter is 10 ~ 80 μm, length/diameter than be 5 ~ 20 extra-fine steel fiber or length be 0.1 ~ 1mm, diameter is that the glass fibre of 0.03 ~ 1mm or diameter are 6.5 ~ 260 μm, length is the silica optical fiber of 0.03 ~ 1mm: 40 ~ 60 parts, EVA hot-melt adhesive: 5 ~ 10 parts, model is the cable jacket antioxidant of 1010: 3 ~ 5 parts, aluminium hydroxide: 15 ~ 25 parts, paraffin: 3 ~ 9 parts, carbon black master batch: 5 ~ 10 parts.

Certainly, the Loose tube described in this embodiment can be many, at least one; A light transmitting fiber is at least comprised in every root Loose tube.

Certainly, optical cable in this embodiment, can also as embodiment 2, anti-unfirmly closing optical cable, it comprises and is distributed at least one Loose tube 2 outside reinforcement 3 and at least one large gasket for packing, be arranged in the external series gap of adjacent Loose tube or the little gasket for packing of the external series gap of adjacent large gasket for packing or the external series gap of adjacent Loose tube and large gasket for packing, be positioned at the protective layer 4 outside Loose tube and large gasket for packing and little gasket for packing, be positioned at the sheath 5 outside protective layer, be positioned at the oversheath 7 outside sheath, a light transmitting fiber 1 is at least comprised in every root Loose tube, described light transmitting fiber is positioned among fibre ribbon, fibre ribbon is positioned at Loose tube, it is characterized in that having one between sheath and oversheath prevents pecking layer 6, describedly anti-peck layer by weight, be made up of following starting material: medium density polyethylene or Low Density Polyethylene or high density polyethylene: 50 ~ 80 parts, the trade mark be 617 or the trade mark be the epoxy resin of 677: 10 ~ 20 parts, diameter is 10 ~ 80 μm, length/diameter than be 5 ~ 20 extra-fine steel fiber or length be 0.1 ~ 1mm, diameter is that the glass fibre of 0.03 ~ 1mm or diameter are 6.5 ~ 260 μm, length is the silica optical fiber of 0.03 ~ 1mm: 40 ~ 60 parts, EVA hot-melt adhesive: 5 ~ 10 parts, model is the cable jacket antioxidant of 1010: 3 ~ 5 parts, aluminium hydroxide: 15 ~ 25 parts, paraffin: 3 ~ 9 parts, carbon black master batch: 5 ~ 10 parts.

Anti-unfirmly closing optical cable in this embodiment, its method for making can put example 2 with reference to embodiment 1 with real, only painted complete after how one fibre ribbon making step, by colored optical fiber and band forms fibre ribbon, then, in the forming process of Loose tube, fibre ribbon is inserted in Loose tube.

During anti-unfirmly closing fiber optic cable production in this embodiment, when having little gasket for packing, when SZ stranding, little gasket for packing is placed in the external series gap of large gasket for packing in the external series gap of adjacent Loose tube or adjacent or in the external series gap of adjacent Loose tube and large gasket for packing.

embodiment 4

Ask for an interview Fig. 4, anti-unfirmly closing optical cable, it comprises Loose tube 2, be positioned at the water blocking layer 8 outside Loose tube, be positioned at the protective layer 4 outside water blocking layer, be positioned at the reinforcement 3 outside protective layer, be positioned at the oversheath 7 outside reinforcement and protective layer, 12 light transmitting fibers 1 are comprised in Loose tube, light transmitting fiber be with the formal distribution of loose shape in Loose tube or be arranged in the fibre ribbon that is placed on Loose tube, it is characterized in that having one between protective layer and oversheath prevents pecking layer 6, reinforcement is arranged in be prevented pecking layer, describedly anti-peck layer by weight, be made up of following starting material: medium density polyethylene or Low Density Polyethylene or high density polyethylene: 50 ~ 80 parts, the trade mark be 617 or the trade mark be the epoxy resin of 677: 10 ~ 20 parts, diameter is 10 ~ 80 μm, length/diameter than be 5 ~ 20 extra-fine steel fiber or length be 0.1 ~ 1mm, diameter is that the glass fibre of 0.03 ~ 1mm or diameter are 6.5 ~ 260 μm, length is the silica optical fiber of 0.03 ~ 1mm: 40 ~ 60 parts, EVA hot-melt adhesive: 5 ~ 10 parts, model is the cable jacket antioxidant of 1010: 3 ~ 5 parts, aluminium hydroxide: 15 ~ 25 parts, paraffin: 3 ~ 9 parts, carbon black master batch: 5 ~ 10 parts.

Certainly, a light transmitting fiber is at least comprised in the Loose tube described in this embodiment.

embodiment 5

Ask for an interview Fig. 5, anti-unfirmly closing optical cable, it comprises Loose tube 2, be positioned at the multi reinforcements 3 of living outside Loose tube and by Loose tube integral coating, by securing for multi reinforcements wrapping layer 9, be positioned at the sheath 5 outside wrapping layer, be positioned at the oversheath 7 outside sheath, 12 light transmitting fibers 1 are comprised in Loose tube, light transmitting fiber be with the formal distribution of loose shape in Loose tube or be arranged in the fibre ribbon that is placed on Loose tube, it is characterized in that having one between described sheath and oversheath prevents pecking layer 6, describedly anti-peck layer by weight, be made up of following starting material: medium density polyethylene or Low Density Polyethylene or high density polyethylene: 50 ~ 80 parts, the trade mark be 617 or the trade mark be the epoxy resin of 677: 10 ~ 20 parts, diameter is 10 ~ 80 μm, length/diameter than be 5 ~ 20 extra-fine steel fiber or length be 0.1 ~ 1mm, diameter is that the glass fibre of 0.03 ~ 1mm or diameter are 6.5 ~ 260 μm, length is the silica optical fiber of 0.03 ~ 1mm: 40 ~ 60 parts, EVA hot-melt adhesive: 5 ~ 10 parts, model is the cable jacket antioxidant of 1010: 3 ~ 5 parts, aluminium hydroxide: 15 ~ 25 parts, paraffin: 3 ~ 9 parts, carbon black master batch: 5 ~ 10 parts.

3rd step: the step making wrapping layer: first will purchase outside Loose tube that the multi reinforcements integral coating that obtains formed at second step, multi reinforcements is coated in the mode that spiral is stranded, the stranded pitch of spiral is 100 ~ 300 times of reinforcement diameters, and reinforcement is steel wire or glass fiber reinforced plastics; Then polyester bundle yarn buying obtained or other yarn class material with some strength are coated on reinforcement with 20 ~ 50mm pitch spiral winding and form wrapping layer outward;

4th step: make the step of sheath: Low Density Polyethylene or medium density polyethylene or high-density polyethylene material extrusion molding are coated on the wrapping layer that the 3rd step formed and form sheath outward, the thickness of sheath is 0.8 ~ 2.0mm;

6th step: make the step of oversheath: what is formed in the 5th step by sheath extruding machine anti-ly pecks the layer coated jacket material of extrusion molding outward; The material of oversheath is Low Density Polyethylene or medium density polyethylene or high density polyethylene or nylon 12; When the material of oversheath be Low Density Polyethylene or medium density polyethylene or high density polyethylene time, oversheath thickness is 1.0 ~ 3.0mm; When the material of oversheath is nylon 12, oversheath thickness is 0.4 ~ 0.8mm.

embodiment 6

Ask for an interview referring to figs. 1 to Fig. 5, anti-unfirmly closing cable, includes cable conductor and is positioned at outermost oversheath, and the inside that it is characterized in that being close to oversheath has one and prevents pecking layer, or the inside being close to oversheath has one and anti-pecks layer, there is a protective layer being close to anti-inside of pecking layer; Describedly anti-peck layer by weight, be made up of following starting material: medium density polyethylene or Low Density Polyethylene or high density polyethylene: 50 ~ 80 parts; The trade mark be 617 or the trade mark be the epoxy resin of 677: 10 ~ 20 parts; Diameter is 10 ~ 80 μm, length/diameter than be 5 ~ 20 extra-fine steel fiber or length be 0.1 ~ 1mm, diameter is that the glass fibre of 0.03 ~ 1mm or diameter are 6.5 ~ 260 μm, length is the silica optical fiber of 0.03 ~ 1mm: 40 ~ 60 parts; EVA hot-melt adhesive: 5 ~ 10 parts; Model is the cable jacket antioxidant of 1010: 3 ~ 5 parts; Aluminium hydroxide: 15 ~ 25 parts; Paraffin: 3 ~ 9 parts; Carbon black master batch: 5 ~ 10 parts; Described cable conductor is cable core of the prior art or cable.

Anti-unfirmly closing cable described above, is characterized in that it is obtained by following steps:

The first step: adopt prior art to make cable conductor, described cable conductor is cable core or cable;

Second step: make anti-step of pecking layer: the outer extrusion molding thickness of cable core formed in the first step by sheath extruding machine is that the anti-of 1.0 ~ 3.0mm thickness pecks layer; Or get steel band or aluminium strip material to be longitudinally coated on the cable core cable core that the first step formed and to form protective layer outward, then sheath extruding machine is that the anti-of 1.0 ~ 3.0mm thickness pecks layer at the outer extrusion molding thickness of protective layer; Describedly anti-peck layer by weight, what be made up of following starting material anti-ly pecks layer: medium density polyethylene or Low Density Polyethylene or high density polyethylene: 50 ~ 80 parts; The trade mark be 617 or the trade mark be the epoxy resin of 677: 10 ~ 20 parts; Diameter is 10 ~ 80 μm, length/diameter than be 5 ~ 20 extra-fine steel fiber or length be 0.1 ~ 1mm, diameter is that the glass fibre of 0.03 ~ 1mm or diameter are 6.5 ~ 260 μm, length is the silica optical fiber of 0.03 ~ 1mm: 40 ~ 60 parts; EVA hot-melt adhesive: 5 ~ 10 parts; Model is the cable jacket antioxidant of 1010: 3 ~ 5 parts; Aluminium hydroxide: 15 ~ 25 parts; Paraffin: 3 ~ 9 parts; Carbon black master batch: 5 ~ 10 parts;

3rd step: make the step of oversheath: what is formed at second step by sheath extruding machine anti-ly pecks the layer coated jacket material of extrusion molding outward; The material of oversheath is Low Density Polyethylene or medium density polyethylene or high density polyethylene or nylon 12; When the material of oversheath be Low Density Polyethylene or medium density polyethylene or high density polyethylene time, 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 above-mentioned arbitrary embodiment or anti-unfirmly closing cable, it is characterized in that the described anti-optimum embodiment pecking layer is: by weight, what be made up of following starting material anti-ly pecks layer: medium density polyethylene or Low Density Polyethylene or high density polyethylene: 50 parts; The trade mark be 617 or the trade mark be the epoxy resin of 677: 10 parts; Diameter is 10 ~ 80 μm, length/diameter than be 5 ~ 20 extra-fine steel fiber or length be 0.1 ~ 1mm, diameter is that the glass fibre of 0.03 ~ 1mm or diameter are 6.5 ~ 260 μm, length is the silica optical fiber of 0.03 ~ 1mm: 40 parts; EVA hot-melt adhesive: 5 parts; Model is the cable jacket antioxidant of 1010: 3 parts; Aluminium hydroxide: 15 parts; Paraffin: 3 parts; Carbon black master batch: 5 parts.

Anti-unfirmly closing optical cable described in above-mentioned arbitrary embodiment or anti-unfirmly closing cable, it is characterized in that the described anti-suboptimum embodiment pecking layer is: by weight, what be made up of following starting material anti-ly pecks layer: medium density polyethylene or Low Density Polyethylene or high density polyethylene: 80 parts; The trade mark be 617 or the trade mark be the epoxy resin of 677: 20 parts; Diameter is 10 ~ 80 μm, length/diameter than be 5 ~ 20 extra-fine steel fiber or length be 0.1 ~ 1mm, diameter is that the glass fibre of 0.03 ~ 1mm or diameter are 6.5 ~ 260 μm, length is the silica optical fiber of 0.03 ~ 1mm: 60 parts; EVA hot-melt adhesive: 10 parts; Model is the cable jacket antioxidant of 1010: 5 parts; Aluminium hydroxide: 25 parts; Paraffin: 9 parts; Carbon black master batch: 10 parts.

Anti-unfirmly closing optical cable described in above-mentioned arbitrary embodiment or anti-unfirmly closing cable, it is characterized in that the described anti-more excellent embodiment pecking layer is: by weight, what be made up of following starting material anti-ly pecks layer: medium density polyethylene or Low Density Polyethylene or high density polyethylene: 65 parts; The trade mark be 617 or the trade mark be the epoxy resin of 677: 15 parts; Diameter is 10 ~ 80 μm, length/diameter than be 5 ~ 20 extra-fine steel fiber or length be 0.1 ~ 1mm, diameter is that the glass fibre of 0.03 ~ 1mm or diameter are 6.5 ~ 260 μm, length is the silica optical fiber of 0.03 ~ 1mm: 50 parts; EVA hot-melt adhesive: 8 parts; Model is the cable jacket antioxidant of 1010: 4 parts; Aluminium hydroxide: 20 parts; Paraffin: 6 parts; Carbon black master batch: 7.5 parts.

Anti-unfirmly closing optical cable described above or anti-unfirmly closing cable, it is characterized in that the described anti-medium density polyethylene pecked in layer or Low Density Polyethylene or high density polyethylene, can be pure medium density polyethylene or Low Density Polyethylene or high density polyethylene, also can be cable medium density polyethylene or Low Density Polyethylene or high density polyethylene finished product material.

In the present invention, prevent pecking layer owing to having, prevent that pecking layer has special formula, it can carry out extrusion molding by extruding machine on the one hand, easy to process, speed of production is fast, φ 90 extruding machine produces the cable that diameter is below 25mm and optical cable, speed reaches more than 60 ms/min, and product qualified rate is high, because anti-pecking in layer has extra-fine steel fiber or glass fibre or silica optical fiber, it has extremely strong stabs performance, birds carry out pecking hit first time after, its puff will be injured, so there is no again peck the desire of hitting, cable is effectively protected, through the use in nearly 3 years forest zones, do not have again and occur because birds peck bad cable or optical cable and interrupt electric power, the accident of communication occurs, meanwhile, of the present inventionly anti-peck layer there is stronger anti-side pressure and impact resistance.Extra-fine steel fiber or glass fibre commercially just can buy, and for the anti-silica optical fiber pecked in layer, light transmitting fiber can be purchased carry out rolling, pulverize, filter acquisition, not only can use photoconduction fibrous finished product, can also use and there is no covering or there is no coat or there is no the light transmitting fiber fibre core of covering and coat, light transmitting fiber waste product even can be used to carry out rolling, pulverize, filter acquisition, reach the useless object utilized, reduce the pollution of optical fiber producer; In addition, the material in the present invention and product do not relate to problem of environmental pollution.

The present invention is easy to make, do not need to add expensive equipment.In the present invention, when having protective layer, protective layer jointly resists pecking of birds hit with anti-layer of pecking, and when not having protective layer, reinforcement jointly resists pecking of birds hit with anti-layer of pecking, and optical cable or cable is resisted peck to hit, impacts, the performance of withstand voltage aspect increases greatly.In the present invention, oversheath can be tried one's best and do not used expensive nylon, cost can be made like this to decline to a great extent, make the buying of user, safeguard that integrated cost is lower.Certainly, the oversheath in the present invention also can adopt coloured sheath, such as red, yellow etc., preferred or conventional black.

Applicant has done to use to contrast for the anti-unfirmly closing optical cable in the application and the optical cable produced by prior art, optical cable is all built on stilts laying, the structure all adopting embodiment 1 of the present invention, oversheath is black and redness, 1#-4# represents different and anti-ly pecks layer formula, 1# is maximum magnitude, 2# is that optimum enforcement is filled a prescription, 3# is that suboptimum implements formula, 4# is more excellent enforcement formula, first group adopt be extra-fine steel fiber, second group adopt be glass fibre, second group adopt be silica optical fiber; Control group is 5#, employing be the structure of embodiment 1, only it anti-ly pecks layer, but the oversheath thickness that the thickness of oversheath is the invention process example 1 adds to be prevented pecking layer thickness, oversheath is red, and in Hunan, same forest zone respectively uses 100 kilometers to each sequence number, obtains following data.

Passable as apparent from upper table, adopt the present invention, due to anti-effect of pecking layer, really make electric power, communications obtains guarantee, meanwhile, anti-pecking in layer adopts the anti-of silica optical fiber to peck best performance, adopt the suboptimum of glass fibre, adopt the more excellent of extra-fine steel fiber; And, when oversheath is coloured, subjects to pecking of birds all the better and hit.

The present invention is not limited to above-mentioned preferred forms, and should be appreciated that design of the present invention can be implemented to use by other various forms, they drop in protection scope of the present invention equally.

Claims

1. anti-unfirmly closing optical cable, it comprises Loose tube, be positioned at the multi reinforcements of living outside Loose tube and by Loose tube integral coating, by securing for multi reinforcements wrapping layer, be positioned at the sheath outside wrapping layer, be positioned at the oversheath outside sheath, a light transmitting fiber is at least comprised in Loose tube, light transmitting fiber be with the formal distribution of loose shape in Loose tube or be arranged in the fibre ribbon that is placed on Loose tube, it is characterized in that having one between described sheath and oversheath prevents pecking layer, describedly anti-peck layer by weight, be made up of following starting material: medium density polyethylene or Low Density Polyethylene or high density polyethylene: 50 ~ 80 parts, the trade mark be 617 or the trade mark be the epoxy resin of 677: 10 ~ 20 parts, diameter is 10 ~ 80 μm, length/diameter than be 5 ~ 20 extra-fine steel fiber or length be 0.1 ~ 1mm, diameter is that the glass fibre of 0.03 ~ 1mm or diameter are 6.5 ~ 260 μm, length is the silica optical fiber of 0.03 ~ 1mm: 40 ~ 60 parts, EVA hot-melt adhesive: 5 ~ 10 parts, model is the cable jacket antioxidant of 1010: 3 ~ 5 parts, aluminium hydroxide: 15 ~ 25 parts, paraffin: 3 ~ 9 parts, carbon black master batch: 5 ~ 10 parts.

2. a method for the anti-unfirmly closing optical cable described in manufacturing claims 1, is characterized in that it comprises following steps: