CN114236724A - Low-shrinkage high-tensile-strength optical cable - Google Patents
Low-shrinkage high-tensile-strength optical cable Download PDFInfo
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- CN114236724A CN114236724A CN202111607293.6A CN202111607293A CN114236724A CN 114236724 A CN114236724 A CN 114236724A CN 202111607293 A CN202111607293 A CN 202111607293A CN 114236724 A CN114236724 A CN 114236724A
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- optical cable
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- alloy belt
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4401—Optical cables
- G02B6/4429—Means specially adapted for strengthening or protecting the cables
- G02B6/443—Protective covering
Abstract
The invention discloses an optical cable with low shrinkage and high tensile strength, which relates to the technical field of optical cables, and comprises a cable core, an optical cable and a porous reticular alloy belt, wherein the surface of the cable core is provided with five optical cables which are uniformly arranged on the outer wall of the cable core in an annular direction, the porous reticular alloy belt covers the surface of the optical cable, the surface of the porous reticular alloy belt is wrapped with two steel wires, the two steel wires are uniformly wrapped on the surface of the porous reticular alloy belt in the positive and negative directions, the surface of the porous reticular alloy belt is provided with a heat insulation layer, the surface of the heat insulation layer is provided with a protective sleeve, the optical cable is provided with the porous reticular alloy belt which covers the cable core and is additionally provided with two high-strength thin steel wires which are wrapped on the alloy belt in a bidirectional manner so as to enhance the axial tensile resistance of the optical cable, and the two steel wires which are uniformly wrapped in the positive and negative directions can offset the torsion condition of the stress balance optical cable inside the optical cable, can be more laborsaving convenient when the construction open peel and lay, improved the effect of efficiency of construction.
Description
Technical Field
The invention relates to the technical field of optical cables, in particular to a low-shrinkage high-tensile-strength optical cable.
Background
With the formulation and advancement of fourteen-five plans, the communication industry has increasingly strengthened infrastructure attributes. The national higher requirements for network security, internet of things, artificial intelligence and 5G communication promote the maturity of the related industries of 5G communication and the accelerated construction of facilities, and when the optical cable is used in the past in long-distance practical application, the optical cable has higher requirements for tensile resistance and lower shrinkage performance of the optical cable, and except for long-distance use, the optical cable has higher requirements for the shrinkage stability and the low-stress table of the optical cable in the short-distance use process.
The optical cable in the existing market has low tensile strength, is easy to break in the using process, wastes time and labor when being stripped and laid, and reduces the construction efficiency.
Disclosure of Invention
The invention aims to provide a low-shrinkage high-tensile-strength optical cable which is characterized in that a porous reticular alloy belt is used for covering a cable core, two high-strength thin steel wires are added to be wrapped outside the alloy belt in a bidirectional mode to enhance the axial tensile strength of the optical cable, the two steel wires are uniformly wrapped in the positive direction and the negative direction in different directions, the torsion condition of the optical cable can be balanced by the stress inside the optical cable, stripping and laying can be performed more conveniently and more labor-saving during construction, the construction efficiency is improved, and the technical problems in the background technology are solved.
In order to achieve the purpose, the invention provides the following technical scheme: the optical cable with low shrinkage and high tensile strength comprises a cable core, an optical cable and a porous reticular alloy belt, wherein the number of the optical cable on the surface of the cable core is five, the optical cable is uniformly arranged on the outer wall of the cable core in the circumferential direction, the porous reticular alloy belt is coated on the surface of the optical cable, steel wires are wound on the surface of the porous reticular alloy belt, the number of the steel wires is two, the steel wires are uniformly wound on the surface of the porous reticular alloy belt in the positive and negative directions, a heat insulation layer is arranged on the surface of the porous reticular alloy belt, and a protective sleeve is arranged on the surface of the heat insulation layer.
Optionally, the protective sleeve comprises a chromium-plated polyvinyl chloride sheath layer, a fluoroplastic sheath layer and a waterproof layer, and the waterproof layer is an ethylene propylene diene monomer waterproof layer.
Optionally, the inner side wall of the porous reticular alloy belt is provided with a tensile block, and the tensile block is silica gel.
Optionally, the surface of the protective sleeve is provided with a wear-resistant layer, and the surface of the wear-resistant layer is provided with wear-resistant convex particles.
Optionally, a filling rope is arranged in the porous reticular alloy belt, and the filling rope is a glass fiber rope.
Optionally, the wear-resistant layer is a ZS-911 wear-resistant waterproof coating layer.
Optionally, the heat insulation layer is made of a rubber asbestos plate material, and the thickness of the heat insulation layer is millimeters.
Optionally, the cable core is formed by twisting a plurality of low-carbon steel wires, and a metal zinc layer is electroplated on the outer wall of the cable core.
Compared with the prior art, the invention has the following beneficial effects:
according to the invention, the porous reticular alloy belt is used for covering the cable core, two high-strength thin steel wires with the diameter of 0.4mm are added and are wrapped outside the alloy belt in a bidirectional mode to enhance the axial tensile resistance of the optical cable, the torsion condition of the stress balance optical cable in the optical cable can be offset by uniformly wrapping the two steel wires in the front direction and the back direction, stripping and laying can be carried out more conveniently and more laborsavingly during construction, experiments prove that the construction time can be saved by about 24%, and the construction efficiency is obviously improved.
The tensile block is arranged, so that when the cable is subjected to external tension, the tension is uniformly distributed, the internal cable is protected, the cable cannot be broken due to the external tension, the tensile resistance of the optical cable is improved, and the tensile block is silica gel which is soft, good in elasticity, resistant to twisting, non-deforming, not prone to cracking, long in service life, cold and high temperature resistant, high in tear resistance and excellent in electrical performance, and further improves the tensile resistance of the optical cable.
And the wear-resistant layer and the wear-resistant convex particles are arranged on the surface of the protective sleeve, so that the wear-resistant performance of the surface of the optical cable is improved, the wear of the outer skin of the optical cable is greatly reduced, and the service life is prolonged.
Drawings
FIG. 1 is a front view of the structure of the present invention;
FIG. 2 is a cross-sectional view of the structure of the protective sleeve of the present invention;
FIG. 3 is a schematic view of the internal and external mold assembly of the present invention.
In the figure: 1. a cable core; 2. an optical cable; 3. filling a rope; 4. a porous mesh-like alloy ribbon; 5. a steel wire; 6. a thermal insulation layer; 7. a protective sleeve; 8. a wear layer; 9. wear-resistant convex particles; 10. a zinc metal layer; 11. a tensile block; 12. a chrome-plated polyvinyl chloride sheath layer; 13. a fluoroplastic sheath layer; 14. a waterproof layer; 15. an outer mold; 16. an inner mold.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The first embodiment is as follows:
referring to fig. 1 to 3, this embodiment provides a low-shrinkage high-tensile strength optical cable, including a cable core 1 and an optical cable 2, and further including a porous mesh-like alloy tape 4, the number of the optical cable 2 on the surface of the cable core 1 is five, and the optical cable is uniformly arranged on the outer wall of the cable core 1 in an annular direction, the porous mesh-like alloy tape 4 is wrapped on the surface of the optical cable 2, the surface of the porous mesh-like alloy tape 4 is wrapped with two steel wires 5, and the steel wires 5 are uniformly wrapped on the surface of the porous mesh-like alloy tape 4 in forward and reverse directions, the surface of the porous mesh-like alloy tape 4 is provided with a thermal insulation layer 6, the surface of the thermal insulation layer 6 is provided with a protective cover 7, when in use, the cable core is wrapped with the porous mesh-like alloy tape, and 2 high-strength fine steel wires with a diameter of 0.4mm are wrapped in the alloy tape in both directions to enhance the axial tensile strength of the optical cable, and the 2 steel wires are uniformly wrapped in forward and reverse directions to offset the torsion condition of the stress balance optical cable, can drag at will during the construction, conveniently wrench movement can not turn round the atress back, and more laborsaving during the construction unwrapping wire, effectual promotion efficiency of construction, through the experiment demonstration, can practice thrift about 24% of engineering time, the efficiency of construction obviously promotes.
Further, the protective cover 7 comprises a chromium-plated polyvinyl chloride sheath layer 12, a fluoroplastic sheath layer 13 and a waterproof layer 14, the waterproof layer 14 is a butadiene-diene monomer waterproof layer or an ethylene propylene diene monomer waterproof layer, the chromium-plated polyvinyl chloride sheath layer 12 is a material plated with a metal chromium layer on a plastic steel material when in use, the strength is high, the compressive resistance can be achieved, meanwhile, the metal chromium layer also has a corrosion resistance effect, the fluoroplastic sheath layer 13 adopts a polytetrafluoroethylene sheath, the corrosion resistance and aging resistance effects are achieved, the service life of the cable is effectively prolonged, and the ethylene propylene diene monomer has excellent chemical medicine resistance, and is resistant to acid, alkali, detergent, animal and vegetable oil, alcohol, ketone and the like by arranging the waterproof layer 14 as the ethylene propylene diene monomer waterproof layer; excellent water resistance, superheated water resistance and water vapor resistance; excellent insulating property and polar oil resistance, wide applicable temperature range and effectively improved waterproof capability of the cable.
Further, 4 inside walls in porous netted alloy area are provided with tensile piece 11, tensile piece 11 is silica gel, through setting up tensile piece 11, when the cable is receiving outside pulling force, will do all can evenly distributed, thereby protect inside cable, make the cable can not break because of outside pulling force, the stretch-proofing performance of optical cable has been improved, and be silica gel through setting up tensile piece 11, silica gel has the softness, elasticity is good, resistant kink indeformable, difficult fracture, long service life, cold-resistant high temperature resistant, still have very high tear strength and superior electrical property, further improve the tensile property of optical cable.
Further, lag 7 surfaces are provided with wearing layer 8, and 8 surfaces on wearing layer are provided with wear-resisting protruding grain 9, through setting up wearing layer 8 and wear-resisting protruding grain 9, have improved the wear resistance on optical cable surface, and the wearing and tearing of the optical cable crust that significantly reduces have improved life.
Further, a filling rope 3 is arranged in the porous reticular alloy belt 4, the filling rope 3 is a glass fiber rope, the glass fiber rope has excellent heat resistance, and the maximum use temperature is 600 ℃; the thermal conductivity is low. Soft and good heat insulation; the glass fiber rope does not absorb water, is not corroded, does not mildew or moth-eaten, is not easy to scatter and has certain tensile strength; excellent aging resistance; the fabric can be cut and sewn according to the use requirements, and is easy to construct; the glass fiber has good electrical insulation performance; the glass fiber is inorganic fiber and is never burnt; and has high tensile strength and length stability, and effectively improves the stability of the optical cable in use.
Furthermore, the wear-resistant layer 4 is a ZS-911 wear-resistant waterproof coating layer, the ZS-911 wear-resistant waterproof coating has high paint film compactness, can effectively shield gas and corrosive liquid from permeating, can effectively prevent physical reaction and chemical reaction of corrosive media such as acid, alkali, salt and the like, has high coating hardness, impact resistance, smoothness and fullness, has temperature resistance amplitude between minus 45 ℃ and 600 ℃, high thermal shock resistance coefficient and good adhesive force, is suitable for being coated in various acid-base gas-liquid, solvents, intermediates and salt with partial concentration to resist corrosion, and can protect a cable from corrosion for a long time, the coating is formed by combining metal oxide serving as wear-resistant aggregate, wear-resistant ceramic powder serving as filler, oriented and non-oriented reinforced ceramic fiber powder serving as internal force reinforcement, spherical graphite powder and molybdenum powder serving as surface smoothing agent, and the coating is tightly stacked after being cured, has high volume density and no macroscopic defect in the coating, the internal stress force of various materials is greatly improved, the coating is compact and smooth, the hardness is high, the friction coefficient is low, the adhesive force is good, the cable can be protected from being worn and lost by particles, and the service life of the cable is prolonged.
Furthermore, the heat insulation layer 6 is made of rubber asbestos plate materials, the thickness of the heat insulation layer 6 is 6 millimeters, the rubber asbestos plate is made of plates and sheet-shaped sealing products which are pressed by asbestos, rubber and fillers, the heat insulation layer has good heat resistance, alkali resistance and high tensile strength, and the tensile strength of the cable is further improved while heat insulation is achieved.
The second embodiment is different from the first embodiment in that:
in order to improve the tensile property and the service life of the optical cable, the cable core 1 is formed by mutually twisting a plurality of low-carbon steel wires, and the outer wall of the surface cable core 1 is electroplated with a metal zinc layer 10, so that the low-carbon steel wires have good plasticity and small deformation resistance, and the total area reduction rate of one drawing process can be larger during drawing; the strength is high, corrosion resistance and rain resistance are achieved; the use is convenient; the production cost is low, the uneven part of the surface of the low-carbon steel wire is improved by electroplating the metal zinc layer 10 on the surface of the low-carbon steel wire, the surface of the low-carbon steel wire is more flat and smooth, and fine lines and the like on the low-carbon steel wire can be well covered; the galvanized low-carbon steel wire can also well improve the conditions of knots, thorns, corrosion and the like on the steel wire; the galvanized layer on the surface of the galvanized low-carbon steel wire is generally very uniform and has very strong adhesive force, so that the corrosion resistance of the steel wire is improved, and the service life of the steel wire is prolonged.
The working principle is as follows: the invention provides a preparation method of a low-shrinkage high-tensile strength optical cable, which comprises the following steps of;
step S1: after coming out of the pay-off stand, the optical cable core passes through a forming table, and a 16-mesh composite metal belt with the opening diameter of 0.18mm is embossed and longitudinally wrapped
Step S2: the steel wires enter a stranding cage pay-off rack, 2 steel wires are uniformly wrapped outside the alloy belt in the front and back directions at a helix angle of 17 degrees, and then the steel wires enter a plastic extruding machine.
Step S3: after the outer sheath material is melted and softened by the extruder, the material flows to the outer die opening between the inner die and the outer die of the extruder due to pressure, and the material is extruded from the outer die opening to form the same shape as the outer die opening.
Step S4: in order to ensure that the outer sheath is fully cooled and crystallized, the post-shrinkage of the outer sheath is further reduced, 25% of water-based mixed cooling liquid is used, a circulating temperature control system is arranged, the temperature is constant at 75 ℃, blow-drying devices are additionally arranged at the front and the back, hot water tanks and cold water tanks are additionally arranged at the front and the back for supplementary cooling and slow cooling, the temperature is 115 ℃ and 25 ℃ respectively, and finally, a take-up traction device is used for taking up the wire, so that the communication optical cable is finally formed.
According to the optical cable, the porous netted alloy belt is used for covering the cable core, two high-strength thin steel wires with the diameter of 0.4mm are added and are wrapped outside the alloy belt in a bidirectional mode to enhance the axial tensile resistance of the optical cable, the torsion condition of the optical cable can be balanced by uniformly wrapping the two steel wires in the front direction and the back direction, stripping and laying can be performed more conveniently and more labor-saving during construction, the experiment proves that the construction time can be saved by about 24%, the construction efficiency is obviously improved, and the quality and the efficiency of optical cable construction can be greatly improved.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The utility model provides a low high tensile strength optical cable that contracts, includes cable core (1) and optical cable (2), its characterized in that: the optical cable is characterized by further comprising a porous reticular alloy belt (4), the optical cable (2) is five on the surface of the cable core (1), the optical cable is uniformly arranged on the outer wall of the cable core (1) in the circumferential direction, the porous reticular alloy belt (4) is coated on the surface of the optical cable (2), steel wires (5) are wound on the surface of the porous reticular alloy belt (4), the number of the steel wires (5) is two, the steel wires are uniformly wound on the surface of the porous reticular alloy belt (4) in the forward and reverse directions, a heat insulation layer (6) is arranged on the surface of the porous reticular alloy belt (4), and a protective cover (7) is arranged on the surface of the heat insulation layer (6).
2. The low-shrinkage high-tensile-strength optical cable according to claim 1, wherein: the protective sleeve (7) comprises a chromium-plated polyvinyl chloride protective sleeve layer (12), a fluoroplastic protective sleeve layer (13) and a waterproof layer (14), and the waterproof layer (14) is an ethylene propylene diene monomer waterproof layer.
3. The low-shrinkage high-tensile-strength optical cable according to claim 1, wherein: the inner side wall of the porous reticular alloy belt (4) is provided with a tensile block (11), and the tensile block (11) is silica gel.
4. A low-shrinkage high-tensile-strength optical cable according to any one of claims 1 to 3, wherein: the surface of the protective sleeve (7) is provided with a wear-resistant layer (8), and the surface of the wear-resistant layer (8) is provided with wear-resistant convex particles (9).
5. The low-shrinkage high-tensile-strength optical cable according to claim 1, wherein: and a filling rope (3) is arranged in the porous reticular alloy belt (4), and the filling rope (3) is a glass fiber rope.
6. The low-shrinkage high-tensile-strength optical cable according to claim 4, wherein: the wear-resistant layer (4) is a ZS-911 wear-resistant waterproof coating layer.
7. The low-shrinkage high-tensile-strength optical cable according to claim 1, wherein: the heat insulation layer (6) is made of a rubber asbestos plate material, and the thickness of the heat insulation layer (6) is 6 millimeters.
8. The low-shrinkage high-tensile-strength optical cable according to claim 1, wherein: the cable core (1) is formed by twisting a plurality of low-carbon steel wires, and a metal zinc layer (10) is electroplated on the outer wall of the cable core (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111607293.6A CN114236724A (en) | 2021-12-27 | 2021-12-27 | Low-shrinkage high-tensile-strength optical cable |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111607293.6A CN114236724A (en) | 2021-12-27 | 2021-12-27 | Low-shrinkage high-tensile-strength optical cable |
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| CN114236724A true CN114236724A (en) | 2022-03-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111607293.6A Pending CN114236724A (en) | 2021-12-27 | 2021-12-27 | Low-shrinkage high-tensile-strength optical cable |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205787292U (en) * | 2016-06-22 | 2016-12-07 | 宁波搏莱电子有限公司 | A kind of optical cable |
| CN206003527U (en) * | 2016-08-31 | 2017-03-08 | 江苏江扬船用电缆有限公司 | A kind of cable used for oil platform |
| CN209746213U (en) * | 2019-04-15 | 2019-12-06 | 安徽长荣光纤光缆科技有限公司 | Pressure-resistant and corrosion-resistant outdoor optical cable |
| CN210954433U (en) * | 2019-10-18 | 2020-07-07 | 浙江汉维通信器材有限公司 | All-dielectric tensile outdoor cable |
| CN214671890U (en) * | 2021-05-07 | 2021-11-09 | 重庆柒安电线电缆（集团）有限责任公司 | Flexible tensile fireproof cable |
| CN214895923U (en) * | 2020-11-13 | 2021-11-26 | 深圳市兆纤特种光缆技术有限公司 | Tensile abrasion-resistant optical cable |
-
2021
- 2021-12-27 CN CN202111607293.6A patent/CN114236724A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205787292U (en) * | 2016-06-22 | 2016-12-07 | 宁波搏莱电子有限公司 | A kind of optical cable |
| CN206003527U (en) * | 2016-08-31 | 2017-03-08 | 江苏江扬船用电缆有限公司 | A kind of cable used for oil platform |
| CN209746213U (en) * | 2019-04-15 | 2019-12-06 | 安徽长荣光纤光缆科技有限公司 | Pressure-resistant and corrosion-resistant outdoor optical cable |
| CN210954433U (en) * | 2019-10-18 | 2020-07-07 | 浙江汉维通信器材有限公司 | All-dielectric tensile outdoor cable |
| CN214895923U (en) * | 2020-11-13 | 2021-11-26 | 深圳市兆纤特种光缆技术有限公司 | Tensile abrasion-resistant optical cable |
| CN214671890U (en) * | 2021-05-07 | 2021-11-09 | 重庆柒安电线电缆（集团）有限责任公司 | Flexible tensile fireproof cable |
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