CN109003713A - A kind of fireproofing photoelectric comprehensive cable and its implementation - Google Patents
A kind of fireproofing photoelectric comprehensive cable and its implementation Download PDFInfo
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- CN109003713A CN109003713A CN201810802140.9A CN201810802140A CN109003713A CN 109003713 A CN109003713 A CN 109003713A CN 201810802140 A CN201810802140 A CN 201810802140A CN 109003713 A CN109003713 A CN 109003713A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B11/00—Communication cables or conductors
- H01B11/22—Cables including at least one electrical conductor together with optical fibres
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B11/00—Communication cables or conductors
- H01B11/02—Cables with twisted pairs or quads
- H01B11/06—Cables with twisted pairs or quads with means for reducing effects of electromagnetic or electrostatic disturbances, e.g. screens
- H01B11/08—Screens specially adapted for reducing cross-talk
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
- H01B13/06—Insulating conductors or cables
- H01B13/14—Insulating conductors or cables by extrusion
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
- H01B13/22—Sheathing; Armouring; Screening; Applying other protective layers
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
- H01B13/22—Sheathing; Armouring; Screening; Applying other protective layers
- H01B13/24—Sheathing; Armouring; Screening; Applying other protective layers by extrusion
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/04—Flexible cables, conductors, or cords, e.g. trailing cables
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
- H01B7/22—Metal wires or tapes, e.g. made of steel
- H01B7/228—Metal braid
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/29—Protection against damage caused by extremes of temperature or by flame
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/29—Protection against damage caused by extremes of temperature or by flame
- H01B7/295—Protection against damage caused by extremes of temperature or by flame using material resistant to flame
Abstract
The invention discloses a kind of fireproofing photoelectric comprehensive cables, including the cable core set gradually from inside to outside, enhancement layer, oversheath and fireprotection layer, the cable core is that more power supply lines and Duo Gen fill out core and be stranded in manufactured lay configuration around a light unit, the light unit be more tight tube fibers and fill out core be stranded in around a center part and meanwhile be twisted one layer of sheath of one layer of enhancement layer and extrusion molding, fireprotection layer is followed successively by band wrapping layer from inside to outside, Transposed wind layer, layers of braided fibers, five layers of composite construction of Transposed wind layer and wire sheathing, and disclose the method for preparing the fireproofing photoelectric comprehensive cable.The present invention greatly reduces the outer diameter and weight of optoelectrical cable; improve comprehensive cable softness bending property; meet the particular/special requirement of rapid and convenient folding and unfolding repeatedly; and by rationally designing composite fire-proof layer; reach the effect of optoelectrical cable flameproof protection, guarantees that optoelectrical cable is of short duration under 900 DEG C~1000 DEG C hot conditions and use particular/special requirement.
Description
Technical field
The invention belongs to optical cable technology field more particularly to a kind of fireproofing photoelectric comprehensive cables suitable for folding and unfolding repeatedly.
Background technique
Conventional photo comprehensive cable is unable to satisfy light-duty photoelectricity due to the disadvantages of size is larger, heavier-weight currently on the market
The particular/special requirement of comprehensive cable, cannot folding and unfolding uses rapid and convenient repeatedly in field, vehicle-mounted, carrier-borne and airborne etc. application environments,
Fire prevention requirement can not be met simultaneously, and some users are small to size, light-weight and may be adapted to quick folding and unfolding repeatedly
Light-duty optoelectrical cable clearly propose application demand, therefore invention light fire-proof optoelectrical cable is very necessary.
Conventional photo comprehensive cable currently used in the market, as shown in Figure 1, by power supply line 8, center part 9, fiber unit
10, polyester film band 11, aramid fiber 12 and polyurethane oversheath 13 form, and power supply line and fiber unit are stranded in center element
Around part, it is coated with polyester film band in the outside of power supply line and fiber unit, is successively coated outside polyester film band
There are aramid fiber and polyurethane oversheath.Although the optoelectrical cable of this kind of structure has the characteristics that soft bending, due to
Outer diameter and weight are larger, can not achieve quick folding and unfolding repeatedly, are unable to satisfy mobility and convenience requirement, and conventional photo is comprehensive
Close cable will appear distorting event in the long-term use, reduce comprehensive cable service life and reliability.Conventional photo comprehensive cable
Do not have fire-proof function, not can guarantee optoelectrical cable and generate in 900~1000 DEG C of hot environments in of short duration flame normally makes yet
With.
Size is small, demand light-weight and that may be adapted to the quickly light-duty optoelectrical cable of folding and unfolding repeatedly in order to meet, simultaneously
Meet and generate Special use requirement in 900~1000 DEG C of hot environments in of short duration flame, there is an urgent need to from material, structure and electricity
Set about in terms of cable production method, a kind of novel fireproofing photoelectric comprehensive cable is provided.
Summary of the invention
Problem to be solved by this invention is to overcome that size of the existing technology is big, weight is high, is unable to high temperature resistant etc. to ask
Topic, provides a kind of novel optoelectrical cable and preparation method thereof, in the machinery and environment for guaranteeing to have conventional photo comprehensive cable
Etc. on the basis of comprehensive performances, designed by photoelectric comprehensive cable structure, reduce the size and weight of optoelectrical cable, be convenient for photoelectricity
Connector installation is suitable for quick folding and unfolding repeatedly, solves to use distortion problem, and meet fire prevention requirement simultaneously, effectively realize
Photoelectricity transmission uses mobility and convenience.
It is achieved in order to solve the above technical problems, the technical solution of the invention is as follows:
A kind of fireproofing photoelectric comprehensive cable, including cable core, enhancement layer 5, oversheath 6 and the fireprotection layer set gradually from inside to outside
7, it is characterised in that: the cable core is that more power supply lines 1 and Duo Gen fill out core 3 and be stranded in around a light unit 2, and outer cladding is special
Solidification glue and wrapped one layer of band 4 made of symmetrical lay configuration, the light unit 2 is that more tight tube fibers and Duo Gen fill out core
It is stranded in around a center part while twisted one layer of restrictive coating of one layer of enhancement layer and extrusion molding, the tight tube fiber includes setting
There are the optical fiber and tight sleeve layer of coat, the fireprotection layer 7 is followed successively by band wrapping layer, Transposed wind layer, braiding fibre from inside to outside
Tie up five layers of composite construction of layer, Transposed wind layer and wire sheathing.
Further, the band wrapping layer is mica tape or fire resistant belt, and the Transposed wind layer is Kapton
Or fluorine plastic film, the layers of braided fibers are glass fibre or resurrection glass fibre, the wire sheathing is tin-coated copper
Silk or stainless steel wire or bare copper wire.
Further, the optical fiber in the light unit 2 in tight tube fiber is the optical fiber for being provided with coat, the light unit
The material of tight tube fiber is nylon or thermoplastic polyester's copolymer Hytrel or flame retardant polyurethane or low-smoke non-halogen flame-retardant polyene in 2
Hydrocarbon, the 2 center part material of light unit be glass bar FRP or aramid fiber stick KFRP or wire, the light unit 2 fill out core be
The outer extrusion plastic of packing material is constituted, and the packing material is aramid fiber or glass fibre or carbon fiber or PBO, the plastics
For flame retardant polyurethane or flame-proof elastomer or polyethylene, the enhancement layer in the light unit 2 be aramid fiber or glass fibre or
Carbon fiber or PBO, the restrictive coating in the light unit 2 are flame retardant polyurethane or flame-proof elastomer.
Further, the material for filling out core 3 is that extrusion plastic is constituted outside packing material, and the packing material is aramid fiber
Fiber or glass fibre or carbon fiber or PBO, the plastics are flame retardant polyurethane or flame-proof elastomer or polyethylene.
It further, include conductor and insulator in the power supply line 1, the conductor material is copper wire or copper stranded conductor or band
Plated layer copper line or belt coating copper stranded conductor；The insulating material is polyethylene or fluoroplastics or polyvinyl chloride or rubber.
Further, the material of the enhancement layer 5 is aramid fiber or glass fibre or carbon fiber or PBO.
Further, the material of the oversheath 6 is flame retardant polyurethane or flame-proof elastomer.
A method of preparing fireproofing photoelectric comprehensive cable, comprising the following steps:
Step 1: tight tube fiber is prepared
Optical fiber secondary cocoon extruding machine is selected, under conditions of folding and unfolding line tension is 0.5~1.0N, setting extrusion temperature is
130~250 DEG C, one layer of tight sleeve layer is coated uniformly with the linear velocity of 60~100m/min in outer fiber, it is cooling through sink, pass through
Tubular molding tool squeezes out, and tight tube fiber is made；
Step 2: preparation light unit
By the tight tube fiber for preparing completion in step 1 and fills out core a piece center is stranded in symmetrical alternate twisted mode
Light unit cable core is made in component ambient, then the uniform armouring enhancement layer outside the light unit cable core, and synchronous one layer of extrusion molding
Oversheath, the extrusion die that using half squeezes tubular type cooling through sink, above-mentioned twisted equipment, armored equipment and extrusion equipment series connection
At one-shot forming apparatus；
Step 3: power supply line is prepared
Select high temperature extrusion machine, folding and unfolding line tension be 2.0~10.0N under conditions of, setting extrusion temperature be 130~
380 DEG C, uniform one layer insulating of extrusion molding of linear velocity outside conductor with 40~100m/min is cooling through sink, passes through extruding
Formula mold squeezes out；
Step 4: cable core is prepared
Cable-former is selected, under conditions of folding and unfolding line tension is 2.0~10.0N, under with the linear velocity of 2~10m/min
More power supply lines for preparing completion in step 3 are filled out into core with more and are stranded in what preparation in step 2 was completed in a manner of twisted
Cable core is made around light unit, while coating special solidification glue and wrapped one layer of band；
Step 5: enhancement layer is prepared
Braider is selected, by one layer of enhancement layer of uniform weave outside the cable core for preparing completion in step 4；
Step 6: oversheath is prepared
Extruding machine is selected, external uniformly one layer of oversheath of extrusion molding of enhancement layer braiding for completion being prepared in step 5, through water
Slot is cooling, and the extrusion die for squeezing tubular type using half, above-mentioned armored equipment and extrusion equipment are connected into one-shot forming apparatus；
Step 7: composite fire-proof layer is prepared
High-speed wrapping machine is selected, by wrapped band uniform outside the oversheath for preparing completion in step 6；Select high speed around
Chartered plane, the uniform wrapped film outside band；Select high-speed knitter, the uniform weave fiber outside film；Select high speed around
Chartered plane, the uniform wrapped film outside band；Select high-speed knitter, the uniform weave metal outside film.
Further, the twisting pitch of the photoelectric comprehensive cable core is 40~150mm, the twisting pitch of enhancement layer is 80~
300mm, under conditions of folding and unfolding line tension is 5.0~20.0N, setting extrusion temperature is 120~180 DEG C, with 5 outside cable core
The linear velocity of~15m/min one layer of oversheath of uniform extrusion molding is further added by 5 layers of composite fire-proof layer protection.
The present invention compare the prior art have it is following the utility model has the advantages that
1, the present invention by by multifiber design in a light unit, due to the lower easily broken problem of simple optical fiber intensity,
Solve the problems, such as that optical fiber twisting fibers together with power supply line are easily broken, and by optical fiber hard-pressed bale, twisted aramid fiber and extrusion molding sheath
The methods of, optical fiber is further protected, guarantees light unit optical property reliability and stabilization in folding and unfolding use process repeatedly
Property；It is individually twisted together by separating more power supply lines with optical fiber, avoids interfering with each other between optical fiber and power supply line, pass through
Fine pith stranding method guarantees comprehensive cable softness bendability, by preventing power supply line from using in the special solidification glue of cladding
Occur play problem in journey, and make cable core structure also more consolidation, electrical property is more reliable and more stable in folding and unfolding use process repeatedly；
Using 5 layers of composite fire-proof structure, according to optoelectrical cable folding and unfolding requirement repeatedly, in conjunction with layer material different characteristics every in fireprotection layer,
Synthetic mica tape, Kapton are designed, resurrection glass fibre, five layer material of Kapton and tinned copper wire are woven
Composite structure, and suitable technological parameter is used, guarantee fireprotection layer use reliability and stability.
2, the present invention weaves armouring method using enhancement layer, has both guaranteed the mechanical performances such as comprehensive cable tensile property, further through
Cable core is locked in comprehensive cable by aramid fiber weaving manner, avoids cable core play in use, comprehensive cable is caused to distort
Situations such as, it improves comprehensive cable and reliability and stability is used for a long time.
Detailed description of the invention
A kind of Fig. 1 fireproofing photoelectric comprehensive cable structure chart provided by the invention
Fig. 2 is the conventional photo comprehensive cable structure chart of the prior art
Fig. 3 is fireproofing photoelectric comprehensive cable fabrication processing figure
It is as shown in the figure:
1: power supply line 2: light unit 3: filling out core 4: band 5: enhancement layer 6: oversheath 7: fireprotection layer 8: light unit
9: center part 10: power supply line 11: band 12: enhancement layer 13: oversheath
Specific embodiment
Invention is further described in detail with reference to the accompanying drawings and examples.
A kind of optoelectrical cable provided by the invention includes the cable core, enhancement layer and oversheath set gradually from inside to outside,
Cable core is that four cores made of identical two tight tube fibers of outer diameter and two power supply lines are stranded in around a center part are symmetrical
Alternate lay configuration, tight tube fiber include the optical fiber and tight sleeve layer for being provided with coat.
Embodiment one
Optical fiber secondary cocoon extruding machine is selected, in folding and unfolding line tension be 0.5N and extrusion temperature is 180~240 DEG C,
Outer fiber uniformly coats one layer of tight sleeve layer with the linear velocity of 60m/min.The material of tight sleeve layer preferentially chooses nylon, then through water
Slot is cooling, and sink cooling temperature is between 30~40 DEG C, and the tight tube fiber that outer diameter is 0.4mm is made using tubular type is squeezed in mold；It will
It prepares two tight tube fibers completed and two is filled out core and are stranded in around a center part in symmetrical alternate twisted mode and make
At light unit cable core, the then uniform armouring enhancement layer outside the light unit cable core, and synchronous one layer of oversheath of extrusion molding, through water
Slot is cooling, the extrusion die for squeezing tubular type using half, and it is 2.0mm, above-mentioned twisted equipment, armored equipment and extrusion equipment that outer diameter, which is made,
It is connected into one-shot forming apparatus.
High temperature extrusion machine is selected again, under conditions of folding and unfolding line tension is 8.0N, extrusion temperature is 160~200 DEG C, is being led
Uniform one layer insulating of extrusion molding of linear velocity outside body with 40m/min, cooling through sink, sink cooling temperature is 40~60 DEG C,
By plsitive mold, the power supply line that outer diameter is 1.2mm is made；It include conductor and insulator in power supply line, conductor material is copper
Twisted wire, conductor diameter 0.6mm；Insulating material is polyethylene.
Six roots of sensation power supply line that above-mentioned preparation is completed and two are filled out into core, a piece light is stranded in symmetrical alternate twisted mode
Photoelectric comprehensive cable core, the twisting pitch 60mm of photoelectric comprehensive cable core are made around unit, the outer diameter of cable core is 4.4mm；It selects and compiles
Loom, under the conditions of folding and unfolding line tension 10N, linear velocity 0.8m/min, one layer of enhancement layer of uniform weave, enhancement layer around cable core
Material is aramid fiber, and the twisting pitch of enhancement layer is 100mm, and it is 4.9mm that outer diameter, which is made,；Extruding machine is selected, in enhancement layer week
Enclose one layer of flame retardant polyurethane oversheath of extrusion molding, the wall thickness of oversheath is 1.05mm, cooling through sink, sink cooling temperature 30~
Between 50 DEG C, the extrusion die for squeezing tubular type using half, it is 7.0mm that outer diameter, which is made,.
Increase fireprotection layer protection around oversheath, passes through wrapped mica tape, wrapped Kapton, braiding glass fibers
Dimension, wrapped fluorine plastic film and braiding tinned copper wire method, it is 9.5mm fireproofing photoelectric comprehensive cable that outer diameter, which is made,.
Embodiment two
Optical fiber secondary cocoon extruding machine is selected, in folding and unfolding line tension be 0.5N and extrusion temperature is 140~180 DEG C,
Outer fiber uniformly coats one layer of tight sleeve layer with the linear velocity of 60m/min, and the material of tight sleeve layer preferentially chooses low-smoke non-halogen flame-retardant
Polyolefin, then cooling through sink, sink cooling temperature is between 30~40 DEG C, and mold uses squash type, and outer diameter, which is made, is
The tight tube fiber of 0.6mm；Two tight tube fibers of preparation completion and two are filled out core to be stranded in symmetrical alternate twisted mode
Light unit cable core is made around a piece center part, then the uniform armouring enhancement layer outside the light unit cable core, and synchronous
One layer of oversheath of extrusion molding, the extrusion die that using half squeezes tubular type cooling through sink, it is 2.5mm that outer diameter, which is made, and above-mentioned be twisted sets
Standby, armored equipment and extrusion equipment are connected into one-shot forming apparatus.
High temperature extrusion machine is selected again, under conditions of folding and unfolding line tension is 9.0N, extrusion temperature is 160~200 DEG C, is being led
Uniform one layer insulating of extrusion molding of linear velocity outside body with 18m/min, cooling through sink, sink cooling temperature is 40~60 DEG C,
By plsitive mold, the power supply line that outer diameter is 1.5mm is made；It include conductor and insulator in power supply line, conductor material is copper
Twisted wire, conductor diameter 0.8mm；Insulating material is polyethylene.
Six roots of sensation power supply line that above-mentioned preparation is completed and two are filled out into core, a piece light is stranded in symmetrical alternate twisted mode
Photoelectric comprehensive cable core, the twisting pitch 80mm of photoelectric comprehensive cable core are made around unit, the outer diameter of cable core is 5.5mm；It selects and compiles
Loom, under the conditions of folding and unfolding line tension 10N, linear velocity 0.8m/min, one layer of enhancement layer of uniform weave, enhancement layer around cable core
Material is aramid fiber, and the twisting pitch of enhancement layer is 150mm, and it is 6.0m that outer diameter, which is made,；Extruding machine is selected, around enhancement layer
One layer of flame retardant polyurethane oversheath of extrusion molding, the wall thickness of oversheath are 1.25mm, and cooling through sink, sink cooling temperature is 30~50
Between DEG C, the extrusion die for squeezing tubular type using half, it is 8.5mm that outer diameter, which is made,.
Increase fireprotection layer protection around oversheath, passes through wrapped mica tape, wrapped Kapton, braiding glass fibers
Dimension, wrapped fluorine plastic film and braiding tinned copper wire method, it is 11mm fireproofing photoelectric comprehensive cable that outer diameter, which is made,.
Embodiment three
Optical fiber secondary cocoon extruding machine is selected, in folding and unfolding line tension be 0.7N and extrusion temperature is 190~260 DEG C,
Outer fiber uniformly coats one layer of tight sleeve layer with the linear velocity of 60m/min, and the material of tight sleeve layer preferentially chooses thermoplastic polyester's copolymerization
Object Hytrel, then cooling through sink, sink cooling temperature is between 30~40 DEG C, and mold uses squash type, and outer diameter, which is made, is
The tight tube fiber of 0.6mm；Two tight tube fibers of preparation completion and two are filled out core to be stranded in symmetrical alternate twisted mode
Light unit cable core is made around a piece center part, then the uniform armouring enhancement layer outside the light unit cable core, and synchronous
One layer of oversheath of extrusion molding, the extrusion die that using half squeezes tubular type cooling through sink, it is 2.8mm that outer diameter, which is made, and above-mentioned be twisted sets
Standby, armored equipment and extrusion equipment are connected into one-shot forming apparatus.
High temperature extrusion machine is selected again, under conditions of folding and unfolding line tension is 9.0N, extrusion temperature is 160~200 DEG C, is being led
Uniform one layer insulating of extrusion molding of linear velocity outside body with 18m/min, cooling through sink, sink cooling temperature is 40~60 DEG C,
By plsitive mold, the power supply line that outer diameter is 1.7mm is made；It include conductor and insulator in power supply line, conductor material is copper
Twisted wire, conductor diameter 1.0mm；Insulating material is fluoroplastics；
Six roots of sensation power supply line that above-mentioned preparation is completed and two are filled out into core, a piece light is stranded in symmetrical alternate twisted mode
Photoelectric comprehensive cable core, the twisting pitch 120mm of photoelectric comprehensive cable core are made around unit, the outer diameter of cable core is 6.2mm；It selects and compiles
Loom, under the conditions of folding and unfolding line tension 10N, linear velocity 0.6m/min, one layer of enhancement layer of uniform weave, enhancement layer around cable core
Material is aramid fiber, and the twisting pitch of enhancement layer is 150mm, and it is 6.7mm that outer diameter, which is made,；Extruding machine is selected, in enhancement layer week
Enclose one layer of flame retardant polyurethane oversheath of extrusion molding, the wall thickness of oversheath is 1.4mm, cooling through sink, sink cooling temperature 30~
Between 50 DEG C, the extrusion die for squeezing tubular type using half, it is 9.5mm that outer diameter, which is made,.
The present invention increases fireprotection layer protection around oversheath, passes through wrapped mica tape, wrapped Kapton, braiding
Glass fibre, wrapped fluorine plastic film and braiding tinned copper wire method, it is 12.5mm fireproofing photoelectric comprehensive cable that outer diameter, which is made,.According to
The light fire-proof optoelectrical cable of above-mentioned technical proposal development is compared with existing conventional photo comprehensive cable, the small, weight with size
The advantages that light and bending property is excellent, can really meet the particular/special requirement of rapid and convenient folding and unfolding repeatedly, and have fire prevention with it is antitorque
Function, effectively realization photoelectricity transmission use mobility and convenience.
This hair can be understood and applied the above description of the embodiments is intended to facilitate those skilled in the art
It is bright.Person skilled in the art obviously easily can make various modifications to these embodiments, and described herein
General Principle is applied in other embodiments without having to go through creative labor.Therefore, the present invention is not limited to implementations here
Example, those skilled in the art's announcement according to the present invention, improvement and modification made without departing from the scope of the present invention all should be
Within protection scope of the present invention.
Claims (9)
1. a kind of fireproofing photoelectric comprehensive cable, including cable core, enhancement layer (5), oversheath (6) and the fire prevention set gradually from inside to outside
Layer (7), it is characterised in that: the cable core is that more power supply lines (1) and more fill out core (3) and are stranded in around a light unit (2),
Symmetrical lay configuration made of the special solidification glue of outer cladding and wrapped one layer of band (4), the light unit (2) are more fixed
Optical fiber and Duo Gen fill out core and are stranded in around a center part while being twisted one layer of restrictive coating of one layer of enhancement layer and extrusion molding, described tight
Unjacketed optical fiber includes the optical fiber and tight sleeve layer for being provided with coat, and the fireprotection layer (7) is followed successively by band wrapping layer, thin from inside to outside
Film wrapping layer, layers of braided fibers, Transposed wind layer and wire sheathing five layers of composite construction.
2. a kind of fireproofing photoelectric comprehensive cable described in accordance with the claim 1, it is characterised in that: the band wrapping layer is mica tape
Or fire resistant belt, the Transposed wind layer be Kapton or fluorine plastic film, the layers of braided fibers be glass fibre or
Resurrection glass fibre, the wire sheathing are tinned copper wire or stainless steel wire or bare copper wire.
3. a kind of fireproofing photoelectric comprehensive cable according to claim 1 or 2, it is characterised in that: fixed in the light unit (2)
Optical fiber in optical fiber is the optical fiber for being provided with coat, and the material of tight tube fiber is that nylon or thermoplastic are poly- in the light unit (2)
Ester copolymer Hytrel or flame retardant polyurethane or low smoke halogen-free flame-retardant polyolefin, light unit (2) the center part material are glass
Glass stick (FRP) or aramid fiber stick (KFRP) or wire, it is that extrusion plastic is constituted outside packing material that the light unit (2), which fills out core,
The packing material is aramid fiber or glass fibre or carbon fiber or PBO, and the plastics are flame retardant polyurethane or fire retardant elastic
Body or polyethylene, the enhancement layer in the light unit (2) are aramid fiber or glass fibre or carbon fiber or PBO, the light list
Restrictive coating in first (2) is flame retardant polyurethane or flame-proof elastomer.
4. a kind of fireproofing photoelectric comprehensive cable according to claim 1 or 2, it is characterised in that: the material for filling out core (3) is
Extrusion plastic is constituted outside packing material, and the packing material is aramid fiber or glass fibre or carbon fiber or PBO, the modeling
Material is flame retardant polyurethane or flame-proof elastomer or polyethylene.
5. a kind of fireproofing photoelectric comprehensive cable according to claim 1 or 2, it is characterised in that: include in the power supply line (1)
Conductor and insulator, the conductor material is for copper wire or copper stranded conductor or with plated layer copper line or belt coating copper stranded conductor；The insulator
Material is polyethylene or fluoroplastics or polyvinyl chloride or rubber.
6. a kind of fireproofing photoelectric comprehensive cable according to claim 1 or 2, it is characterised in that: the material of the enhancement layer (5)
For aramid fiber or glass fibre or carbon fiber or PBO.
7. a kind of fireproofing photoelectric comprehensive cable according to claim 1 or 2, it is characterised in that: the material of the oversheath (6)
For flame retardant polyurethane or flame-proof elastomer.
8. a kind of method for preparing fireproofing photoelectric comprehensive cable, comprising the following steps:
Step 1: tight tube fiber is prepared
Optical fiber secondary cocoon extruding machine is selected, under conditions of folding and unfolding line tension is 0.5~1.0N, setting extrusion temperature is 130
~250 DEG C, one layer of tight sleeve layer is coated uniformly with the linear velocity of 60~100m/min in outer fiber, it is cooling through sink, by squeezing
Tubing die squeezes out, and tight tube fiber is made；
Step 2: preparation light unit
By the tight tube fiber for preparing completion in step 1 and fills out core a piece center part is stranded in symmetrical alternate twisted mode
Light unit cable core is made in surrounding, then the uniform armouring enhancement layer outside the light unit cable core, and protects outside synchronous one layer of extrusion molding
Set, cooling through sink, the extrusion die for squeezing tubular type using half, above-mentioned twisted equipment, armored equipment and extrusion equipment are connected into one
Secondary molding machine；
Step 3: power supply line is prepared
High temperature extrusion machine is selected, under conditions of folding and unfolding line tension is 2.0~10.0N, setting extrusion temperature is 130~380 DEG C,
Uniform one layer insulating of extrusion molding of linear velocity outside conductor with 40~100m/min, it is cooling through sink, pass through plsitive mold
It squeezes out；
Step 4: cable core is prepared
Cable-former is selected, it, will step under with the linear velocity of 2~10m/min under conditions of folding and unfolding line tension is 2.0~10.0N
More power supply lines of completion are prepared in rapid three and more are filled out core and are stranded in the light list for preparing completion in step 2 in a manner of twisted
Cable core is made around first, while coating special solidification glue and wrapped one layer of band；
Step 5: enhancement layer is prepared
Braider is selected, by one layer of enhancement layer of uniform weave outside the cable core for preparing completion in step 4；
Step 6: oversheath is prepared
Extruding machine is selected, the external uniformly one layer of oversheath of extrusion molding of enhancement layer braiding for completion being prepared in step 5 is cold through sink
But, the extrusion die for squeezing tubular type using half, above-mentioned armored equipment and extrusion equipment are connected into one-shot forming apparatus；
Step 7: composite fire-proof layer is prepared
High-speed wrapping machine is selected, by wrapped band uniform outside the oversheath for preparing completion in step 6；High-speed wrapping machine is selected,
The uniform wrapped film outside band；Select high-speed knitter, the uniform weave fiber outside film；High-speed wrapping machine is selected,
The uniform wrapped film outside band；Select high-speed knitter, the uniform weave metal outside film.
9. a kind of method for preparing fireproofing photoelectric comprehensive cable as claimed in claim 7, it is characterised in that:
The twisting pitch of the photoelectric comprehensive cable core is 40~150mm, and the twisting pitch of enhancement layer is 80~300mm, in folding and unfolding
Under conditions of line tension is 5.0~20.0N, setting extrusion temperature is 120~180 DEG C, with 5~15m/min's outside cable core
Linear velocity one layer of oversheath of uniform extrusion molding is further added by 5 layers of composite fire-proof layer protection.
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| CN201810802140.9A CN109003713A (en) | 2018-07-20 | 2018-07-20 | A kind of fireproofing photoelectric comprehensive cable and its implementation |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810802140.9A CN109003713A (en) | 2018-07-20 | 2018-07-20 | A kind of fireproofing photoelectric comprehensive cable and its implementation |
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| CN109003713A true CN109003713A (en) | 2018-12-14 |
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| CN109979667A (en) * | 2019-04-24 | 2019-07-05 | 中复碳芯电缆科技有限公司 | Light electric communicates fireproof cable and preparation method thereof |
| CN110718319A (en) * | 2019-10-08 | 2020-01-21 | 淮南新光神光纤线缆有限公司 | Ignition cable for transmitter |
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