CN113376780B - Physical adsorption temperature-resistant high-flame-retardant communication optical cable and manufacturing method thereof - Google Patents

Physical adsorption temperature-resistant high-flame-retardant communication optical cable and manufacturing method thereof Download PDF

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Publication number
CN113376780B
CN113376780B CN202110924687.8A CN202110924687A CN113376780B CN 113376780 B CN113376780 B CN 113376780B CN 202110924687 A CN202110924687 A CN 202110924687A CN 113376780 B CN113376780 B CN 113376780B
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cavity
sleeve
retardant
flame
optical cable
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CN113376780A (en
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陈珠海
张成龙
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Nanjing Wasin Fujikura Optical Communication Ltd
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Nanjing Wasin Fujikura Optical Communication Ltd
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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
    • G02B6/4436—Heat resistant
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
    • G02B6/4401—Optical cables
    • G02B6/4429—Means specially adapted for strengthening or protecting the cables
    • G02B6/443—Protective covering
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
    • G02B6/4401—Optical cables
    • G02B6/4429—Means specially adapted for strengthening or protecting the cables
    • G02B6/443—Protective covering
    • G02B6/4432—Protective covering with fibre reinforcements

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

The invention relates to the technical field of communication optical cables, in particular to a physical adsorption temperature-resistant high-flame-retardant communication optical cable and a manufacturing method thereof, wherein the physical adsorption temperature-resistant high-flame-retardant communication optical cable comprises the following steps: communication unit, active carbon, cavity, sleeve pipe, aramid fiber reinforcement, mica tape, the fire-retardant sheath of LSZH is located the optical cable outwardly, and the mica tape is located the central intermediate layer of the fire-retardant sheath of LSZH, and the aramid fiber reinforcement is located the inboard of the fire-retardant sheath of LSZH, and the sleeve pipe is located the aramid fiber reinforcement inboard just sleeve pipe inboard and central intermediate layer are the cavity, and active carbon is located the central interbedded cavity of sleeve pipe, and communication unit is located the inboard cavity of sleeve pipe, and the cavity is for seal structure and packing has nitrogen gas and active carbon, and active carbon has strong physical adsorption capacity, adsorbable nitrogen gas, when the external world meets high temperature combustion, the nitrogen gas of cavity intussuseption and released by absorbent nitrogen gas and make anaerobic environment, play apparent flame retardant efficiency.

Description

Physical adsorption temperature-resistant high-flame-retardant communication optical cable and manufacturing method thereof
Technical Field
The invention relates to the technical field of communication optical cables, in particular to a physical adsorption temperature-resistant high-flame-retardant communication optical cable and a manufacturing method thereof.
Background
The optical cable is manufactured to meet the performance specification of optics, machinery or environment, one or more optical fibers arranged in a coating sheath are used as a transmission medium and can be used independently or in a group, the fire-resistant and flame-retardant requirements of subways, railways, large buildings and central machine rooms on the optical cable are extremely high, the traditional high-flame-retardant optical cable mostly uses flame-retardant non-metallic materials for chemical flame retardance, the requirements on raw materials are high, the cost is high, and the flame-retardant performance or the tensile performance can not meet the requirements of the optical cable in special scenes.
Disclosure of Invention
The present invention has been made to solve the above-mentioned problems occurring in the background art, and an object of the present invention is to provide a composite solid electrolyte membrane and a method for manufacturing a solid-state battery using the same.
In order to achieve the above object, the present invention provides the following technical solution, a physical adsorption temperature-resistant high flame-retardant communication optical cable, comprising: communication unit, active carbon, cavity, sleeve pipe, aramid fiber reinforcement, mica tape, the fire-retardant sheath of LSZH, wherein the fire-retardant sheath of LSZH is located the optical cable outwardly, the mica tape is located the central intermediate layer of the fire-retardant sheath of LSZH, the aramid fiber reinforcement is located the inboard of the fire-retardant sheath of LSZH, the sleeve pipe is located aramid fiber reinforcement inboard just the sleeve pipe is inboard and central intermediate layer is the cavity, active carbon is located the central interbedded cavity of sleeve pipe, the communication unit is located the inboard cavity of sleeve pipe, wherein the cavity is seal structure and packing has nitrogen gas and active carbon.
Further, the communication unit is: optical fiber bundles or optical fiber ribbons or stranded cable cores or combinations thereof.
Further, the mica tape intermediate layer is LSZH flame retardant sheath and mica tape extrusion production, the communication unit is non-metallic material, the sleeve pipe is the PBT material, the thickness of aramid fiber reinforcement is: 0.2 mm-2 mm.
A manufacturing method of a physical adsorption temperature-resistant high-flame-retardant communication optical cable comprises the following steps:
s1, firstly, threading the communication unit through a central circular hole of a mold core in an extruding machine, injecting PBT material through the extruding machine, inserting the mold core into a mold sleeve in the extruding machine, extruding to form a sleeve structure with a circular cavity at the center and three oval arc cavities in the interlayer, scattering powdered activated carbon through an activated carbon oscillator, blowing the activated carbon and nitrogen into the cavity of the sleeve through the rear part of the mold core by combining a nitrogen filling device, and finally forming a nonmetal tubular structure combining the sleeve and the communication unit, wherein the inner cavity is provided with the nitrogen and the activated carbon;
s2, cooling the structure formed by the plastic extruding machine and the communication unit in the step S1 in a cooling water tank, drying the structure by a drier, and finally receiving the structure into a sleeve take-up machine through a take-up traction device;
s3, paying off by combining a sleeve paying-off machine and an aramid paying-off machine, coating an aramid fiber reinforcing piece on the surface of a sleeve, then sleeving an LSZH flame-retardant sheath on the sleeve, wherein an LSZH flame-retardant sheath interlayer is provided with an extruded mica tape, finally extruding and molding by using an extruding machine, cooling in a cooling water tank, blow-drying by using a blow-drying machine, and finally taking up by using a take-up traction device to finally form the communication optical cable.
Further, wherein the mold core is a long cylinder pointed convex structure and is internally provided with a cavity, the front end of the mold core is provided with a cylindrical cylinder, the outer side of the cylinder is provided with a solid ring with a three elliptical arc solid structure and a center, the rest parts of the cylinder are all in a hollow structure connected with the long cylinder, and the mold core is of a mold injection molding integrated forming structure.
Further, wherein the die sleeve is of a long cylindrical structure, the inner portion of the die sleeve is a trapezoidal cavity, four grooves are formed in the front end of the die sleeve, a through hole is formed in the center of the die sleeve, the radius of the through hole in the front end of the die sleeve is larger than that of the cylindrical body in the front end of the die core by 2-3 mm, and the die sleeve is of a die injection molding integrated forming structure.
Compared with the prior art, the invention has the following beneficial effects:
1. the communication unit is placed in the sleeve, the inner part of the sleeve is a cavity, activated carbon powder and nitrogen are filled in the cavity, the activated carbon has strong physical adsorption capacity and can adsorb the nitrogen, and when the outside is burnt at high temperature, the nitrogen filled in the cavity and the adsorbed nitrogen are released to produce an oxygen-free environment, so that a remarkable flame-retardant effect is achieved;
2. due to the design of the nitrogen-filled cavity of the optical cable internal protection optical unit, the optical cable internal protection optical unit has a very good heat insulation effect because the gas heat conductivity coefficient is very low, and the influence of external temperature change on the performance of the internal communication unit is reduced;
3. the non-metal aramid fiber reinforcement is covered outside the optical cable, and the flame retardant performance and the tensile property of the communication optical cable are further promoted by a mica tape interlayer generated by extrusion in the LSZH flame retardant sheath;
4. the communication optical cable is completely made of non-metal materials, is very light and soft, and is favorable for optical cable construction in special scenes.
Drawings
FIG. 1: a schematic structural diagram of a physical adsorption temperature-resistant high-flame-retardant communication optical cable;
FIG. 2: a front cross-sectional view of a mold core for manufacturing a physical adsorption temperature-resistant high-flame-retardant communication optical cable;
FIG. 3: a side cross-sectional view of a mold core for manufacturing a physical adsorption temperature-resistant high-flame-retardant communication optical cable;
FIG. 4: a front cross-sectional view of a die sleeve for manufacturing a physical adsorption temperature-resistant high-flame-retardant communication optical cable;
FIG. 5: a side cross-sectional view of a die sleeve for manufacturing a physical adsorption temperature-resistant high-flame-retardant communication optical cable.
Description of reference numerals:
1-a communication unit; 2-activated carbon; 3-a cavity; 4-a sleeve; 5-aramid reinforcement; 6-mica tape; 7-LSZH flame retardant sheath; 8, mold core; and 9-die sleeve.
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, rather than all embodiments, and all other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without creative efforts belong to the protection scope of the present invention.
The invention provides the following technical scheme: a physical adsorption temperature-resistant high-flame-retardant communication optical cable is characterized in that: the cable comprises a communication unit 1, active carbon 2, a cavity 3, a sleeve 4, an aramid fiber reinforcement 5, a mica tape 6 and an LSZH flame-retardant sheath 7, wherein the LSZH flame-retardant sheath 7 is positioned on the outermost layer of the cable, the mica tape 6 is positioned in a central interlayer of the LSZH flame-retardant sheath 7, the aramid fiber reinforcement 5 is positioned on the inner side of the LSZH flame-retardant sheath 7, the sleeve 4 is positioned on the inner side of the aramid fiber reinforcement 5, the inner side and the central interlayer of the sleeve 4 are the cavity 3, the active carbon 2 is positioned in the cavity 3 of the central interlayer of the sleeve 4, the communication unit 1 is positioned in the cavity 3 on the inner side of the sleeve 4, the cavity 3 is a sealing structure and is filled with nitrogen and active carbon, the active carbon has strong physical adsorption capacity and can adsorb nitrogen, when the outside is burnt at high temperature, the nitrogen filled in the cavity and the adsorbed nitrogen are released to manufacture an oxygen-free environment, thereby achieving a remarkable flame-retardant effect, and the nitrogen gas of the cable internal protection optical unit fills the cavity design, because the gas coefficient of heat conductivity is extremely low, can play fine thermal-insulated effect, reduces the influence of ambient temperature change to the internal communication unit performance.
Further, the communication unit 1 is: an optical fiber ribbon.
Further, 6 intermediate layers of mica tape are LSZH flame retardant sheath 7 and 6 extrusion productions of mica tape, communication unit 1 is non-metallic material, sleeve pipe 4 is the PBT material, aramid fiber reinforcement 5's thickness is: 0.2 mm. The nonmetal aramid fiber reinforcement part 5 is covered outside the optical cable, the mica tape 6 interlayer generated by extrusion in the LSZH flame-retardant sheath 7 further promotes the flame retardant property and the tensile property of the communication optical cable, and the communication optical cable is completely made of nonmetal materials, is very light and soft, and is favorable for optical cable construction in special scenes.
A manufacturing method of a physical adsorption temperature-resistant high-flame-retardant communication optical cable comprises the following steps:
s1, firstly, threading the communication unit 1 through a central circular hole of a mold core 8 in an extruding machine, injecting PBT material through the extruding machine, inserting the mold core 8 into a mold sleeve 9 in the extruding machine to extrude the sleeve 4 structure with a circular cavity 3 and three elliptic arc-shaped cavities 3 in the interlayer, scattering powdered activated carbon through an activated carbon oscillator, blowing the activated carbon and nitrogen into the cavity 3 of the sleeve through the rear part of the mold core by combining a nitrogen filling device, and finally forming a nonmetal tubular structure combining the sleeve 4 and the communication unit 1, wherein the inner cavity 3 is provided with the nitrogen and the activated carbon;
s2, enabling a structure formed by the plastic extruding machine in the step S1 and combined with the sleeve 4 communication unit 1 to enter a cooling water tank for cooling, drying by a drier, and finally receiving into a sleeve take-up machine through a take-up traction device;
s3, paying off by combining a sleeve paying-off machine and an aramid paying-off machine, coating a layer of aramid reinforcement 5 on the surface of the sleeve, then sleeving a layer of LSZH flame-retardant sheath 7 on the sleeve, wherein an extruded mica tape 6 is arranged in an interlayer of the LSZH flame-retardant sheath 7, extruding and forming by a plastic extruding machine, cooling in a cooling water tank, blow-drying by a blow-drying machine, and finally taking up by a take-up traction device to finally form the communication optical cable.
Further, wherein mold core 8 is the protruding type structure of long section of thick bamboo tip and inside is the cavity, and the front end is equipped with cylindrical cylinder, the cylinder outside is three elliptical arc solid structure and center for solid ring, the hollow structure that all the other parts of cylinder all are connected with a long section of thick bamboo, mold core 8 is the mould integrated into one piece structure of moulding plastics.
Further, wherein the die sleeve 9 is a long cylindrical structure and is internally provided with a trapezoidal cavity, the front end of the die sleeve is provided with four grooves, the center of the front end of the die sleeve is provided with a through hole, the radius of the through hole at the front end of the die sleeve 9 is 2mm larger than that of the cylindrical structure at the front end of the die core 8, and the die sleeve 9 is of a die injection molding integrated forming structure.
DETAILED DESCRIPTION OF EMBODIMENT (S) OF INVENTION
At first with the central round hole threading of optical fiber ribbon through the mold core in the extruding machine, pour into the PBT material into through the extruding machine, insert the die sleeve through the mold core in the extruding machine and extrude into the center for the sleeve pipe structure of circular shape cavity and intermediate layer cavity that has three oval arc, break up powdered activated carbon through the active carbon oscillator, combine nitrogen gas filling device with activated carbon and nitrogen gas in the cavity of sleeve pipe is insufflated through the mold core rear in the lump, form the nonmetal tubular structure and the inside cavity that sleeve pipe and optical fiber ribbon combine at last and have nitrogen gas and activated carbon.
And then, a structure formed by combining the sleeve and the optical fiber ribbon through the plastic extruding machine enters a cooling water tank for cooling, is dried by a blow dryer and is finally received into a sleeve take-up machine through a take-up traction device.
And finally, paying off by combining a sleeve paying-off machine and an aramid fiber paying-off machine, coating an aramid fiber reinforcing member on the surface of the sleeve, then sleeving an LSZH flame-retardant sheath on the sleeve, wherein an LSZH flame-retardant sheath interlayer is provided with an extruded mica tape, and finally extruding and molding by using an extruding machine, cooling the LSZH flame-retardant sheath in a cooling water tank, blow-drying the LSZH flame-retardant sheath interlayer by using a blow dryer, and finally taking up the LSZH flame-retardant sheath by using a take-up traction device to finally form the communication optical cable.
It is to be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
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 (5)

1. A physical adsorption temperature-resistant high-flame-retardant communication optical cable is characterized in that: including communication unit (1), active carbon (2), cavity (3), sleeve pipe (4), aramid fiber reinforcement (5), mica tape (6), the fire-retardant sheath of LSZH (7), wherein the fire-retardant sheath of LSZH (7) are located the optical cable outwardly, mica tape (6) are located the central intermediate layer of the fire-retardant sheath of LSZH (7), mica tape (6) intermediate layer is LSZH fire-retardant sheath (7) and mica tape (6) extrusion production, inboard and the thickness that aramid fiber reinforcement (5) are located the fire-retardant sheath of LSZH (7) do: 0.2mm ~2mm, sleeve pipe (4) are located aramid fiber reinforcement (5) inboard just sleeve pipe (4) inboard and central intermediate layer are cavity (3), sleeve pipe (4) are the PBT material, active carbon (2) are located sleeve pipe (4) central intermediate layer cavity (3), communication unit (1) are located in sleeve pipe (4) inboard cavity (3) and the material is non-metallic material, wherein cavity (3) are seal structure and fill nitrogen gas and active carbon.
2. The physical adsorption temperature-resistant high-flame-retardant communication optical cable according to claim 1, wherein: wherein the communication unit (1) comprises: optical fiber bundles, optical fiber ribbons and stranded cable cores.
3. A method for manufacturing a physical adsorption temperature-resistant high-flame-retardant communication optical cable is characterized in that,
the method comprises the following steps:
s1, firstly, threading the communication unit (1) through a central circular hole of a mold core (8) in an extruding machine, injecting PBT material through the extruding machine, inserting the mold core (8) into a mold sleeve (9) in the extruding machine to extrude the PBT material into a sleeve (4) structure with a circular cavity (3) at the center and three oval arc cavities (3) in the interlayer, scattering powdered activated carbon through an activated carbon oscillator, blowing the activated carbon and nitrogen into the cavity (3) of the sleeve through the rear part of the mold core in combination with a nitrogen filling device, and finally forming a nonmetal tubular structure combining the sleeve (4) and the communication unit (1), wherein the cavity (3) inside the nonmetal tubular structure has the nitrogen and the activated carbon;
s2, a structure formed by the plastic extruding machine and formed by combining the sleeve (4) and the communication unit (1) enters a cooling water tank for cooling in the step S1, is dried by a drier, and is finally taken into a sleeve take-up machine through a take-up traction device;
s3, paying off by combining a sleeve paying-off machine and an aramid paying-off machine, coating a layer of aramid reinforcement (5) on the surface of a sleeve, then sleeving a layer of LSZH flame-retardant sheath (7), wherein an extruded mica tape (6) is arranged in an interlayer of the LSZH flame-retardant sheath (7), finally extruding and molding by an extruding machine, cooling in a cooling water tank, blow-drying by a blow-drying device, and finally taking up by a take-up traction device to finally form the communication optical cable.
4. The method for manufacturing the physical adsorption temperature-resistant high-flame-retardant communication optical cable according to claim 3, wherein the method comprises the following steps: wherein mold core (8) are long section of thick bamboo tip protruding type structure and inside and are the cavity, and the front end is equipped with cylindrical cylinder, the cylinder outside is three elliptical arc solid structure and center and is solid ring, the hollow structure that all the other parts of cylinder all are connected with a long section of thick bamboo, mold core (8) are the mould integrated into one piece structure of moulding plastics.
5. The method for manufacturing the physical adsorption temperature-resistant high-flame-retardant communication optical cable according to claim 4, wherein the method comprises the following steps: the die sleeve (9) is of a long cylinder cylindrical structure, a trapezoidal cavity is formed in the die sleeve (9), four grooves are formed in the front end of the die sleeve, a through hole is formed in the center of the die sleeve, the radius of the through hole in the front end of the die sleeve (9) is larger than that of a cylindrical cylinder in the front end of the die core (8) by 2-3 mm, and the die sleeve (9) is of a die injection molding integrated forming structure.
CN202110924687.8A 2021-08-12 2021-08-12 Physical adsorption temperature-resistant high-flame-retardant communication optical cable and manufacturing method thereof Active CN113376780B (en)

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US6278826B1 (en) * 1999-09-15 2001-08-21 Lucent Technologies Inc. Cables with water-blocking and flame-retarding foam
CN111029006B (en) * 2019-11-21 2021-02-23 杭州富通通信技术股份有限公司 Photoelectric hybrid cable
CN212342334U (en) * 2020-06-04 2021-01-12 河北沈凯线缆有限公司 Cable with cold resistance
CN112485873A (en) * 2020-11-27 2021-03-12 安徽长荣光纤光缆科技有限公司 High-strength flame-retardant optical fiber cable
CN113192680B (en) * 2021-05-14 2022-05-13 安徽金环电气设备有限责任公司 High-flame-retardant high-temperature-resistant heat dissipation cable

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