CN109545465A - A kind of cable-flame retardant formable layer technique and flame retardant cable - Google Patents
A kind of cable-flame retardant formable layer technique and flame retardant cable Download PDFInfo
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- CN109545465A CN109545465A CN201811408759.8A CN201811408759A CN109545465A CN 109545465 A CN109545465 A CN 109545465A CN 201811408759 A CN201811408759 A CN 201811408759A CN 109545465 A CN109545465 A CN 109545465A
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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
- H01B7/295—Protection against damage caused by extremes of temperature or by flame using material resistant to flame
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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
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
- H01B13/22—Sheathing; Armouring; Screening; Applying other protective layers
- H01B13/26—Sheathing; Armouring; Screening; Applying other protective layers by winding, braiding or longitudinal lapping
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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
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
- H01B7/1805—Protections not provided for in groups H01B7/182 - H01B7/26
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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
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
- H01B7/184—Sheaths comprising grooves, ribs or other projections
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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
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
- H01B7/1875—Multi-layer sheaths
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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
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
- H01B7/22—Metal wires or tapes, e.g. made of steel
- H01B7/226—Helicoidally wound metal wires or tapes
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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
- H01B7/18—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
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- Manufacturing & Machinery (AREA)
- Insulated Conductors (AREA)
Abstract
The present invention relates to technical field of electric wires and cables, it discloses a kind of cable-flame retardant formable layer technique and flame retardant cables, including Conductive Core and the insulation sleeve being coated on Conductive Core, external shielding layer, inner sheath, separation sleeve and oversheath are disposed on insulation sleeve, flame-retardant layer is provided between inner sheath and separation sleeve, flame-retardant layer includes fire-retardant set and the fire retardant that is arranged on fire-retardant set, fire-retardant set upper surface is provided with recess, fire retardant is filled in recess, and fire retardant carries out attachment molding by the technique sprayed, and fire-retardant put on is arranged protective layer.Conductive Core for realizing electric signal or electric energy transmission; the setting of flame-retardant layer; it is allowed to have the effect of fire-retardant; pass through the filler and fire-retardant inside fire-retardant set and protective layer; it is fire-retardant to allow it to have the effect of, the adhesive force and adhesion amount of its fire retardant are improved by way of injection, then pass through recess; fire retardant can be stored in recess, flame retardant property improves.
Description
Technical field
The present invention relates to technical field of electric wires and cables, more specifically, it relates to a kind of cable-flame retardant formable layer technique with
And flame retardant cable.
Background technique
Cable is generally used for the delivery guidewire of transmission electric energy, electric signal etc., and cable has become in present life
Indispensable a part of information transmitting.Currently, in cable in use, its there are many rugged environments, and severe
Cable is easy to appear the case where damage under environment, therefore the cable needs under adverse circumstances are often safeguarded that cost is high, special
It is not that under high temperature environment, the insulating properties of cable and fire resisting, high temperature resistance are the most basic conditions that cable has, and
Fire is also a kind of common disaster at present, and in Hazard processes, it is by electricity that very big degree, which is arranged, all in electric power protection
Cable transmitting signal and electric energy work by it, and therefore, fireproofing of cable performance is all extremely important for present production and living.
Summary of the invention
In view of the deficienciess of the prior art, passing through resistance one of the objects of the present invention is to provide a kind of flame retardant cable
The setting of combustion layer allows cable to have the performance of fire-retardant fireproof, and then allows it that can reach fireproof purpose.
To achieve the above object, the present invention provides the following technical scheme that
A kind of flame retardant cable is successively set on the insulation sleeve including Conductive Core and the insulation sleeve being coated on Conductive Core
It is equipped with external shielding layer, inner sheath, separation sleeve and oversheath, flame-retardant layer is provided between the inner sheath and separation sleeve, it is described
Flame-retardant layer includes fire-retardant set and the fire retardant that is arranged on fire-retardant set, and the fire-retardant set upper surface is provided with recess, the resistance
Combustion agent is filled in recess, and fire-retardant put on is arranged protective layer.
Through the above technical solutions, transmission of the Conductive Core for realizing electric signal or electric energy, reaches the basic of cable
Effect, is insulated, then by the setting of flame-retardant layer, allow it to have the effect of fire-retardant by insulation sleeve, and flame-retardant layer passes through fire-retardant
Set and protective layer are formed with the space for filler and fire-retardant, then filler and fire-retardant inside it, to allow it with fire-retardant
Effect, and fire retardant is attached directly to surface, it is easy to remove it when the setting of subsequent protective layer, causes fire-retardant effect
Therefore the problem of fruit difference is arranged recess on fire-retardant set, fire retardant is allowed to enter in recess, by recess, allow fire retardant can
It is stored in recess, by the setting of multiple recesses, the fire retardant of storage increases, so that its flame retardant property be allowed to improve.
The present invention is further arranged to: the fire retardant uses magnesia or single or two kinds of mixing shapes in calcium chloride
At.
Through the above technical solutions, magnesia and calcium chloride are powdered fire retardant, flame retarding efficiency is high, and
With extremely strong moisture-proof and insulating properties, and then make cable humidity resistance and fire protecting performance during conveying all stronger.
The present invention is further arranged to: bending resistance armor is provided between the separation sleeve and oversheath.
Through the above technical solutions, the setting of bending resistance armor can allow inside cable and will not be worn easily on separation layer
Thorn, bending resistance armor can allow the anti-bending strength of cable to improve.
The present invention is further arranged to: the bending resistance armor includes several bending resistance items for surrounding separation sleeve setting, covers
Metal wrapping layer on separation sleeve and the braiding layer being set on metal wrapping layer, the bending resistance item as metal wrapping layer with
And between separation sleeve.
Through the above technical solutions, the setting of bending resistance item can allow cable to have stronger anti-bending strength, braiding layer and gold
Category, which is rolled into, can allow bending resistance armor to form an entirety.
The present invention is further arranged to: the bending resistance section is filled at V-type setting, and between bending resistance item and separation sleeve
Insulating materials.
Through the above technical solutions, the anti-bending strength of the bending resistance item of V-structure is high, to allow cable to be not in easily
The case where bending, finally allows cable not to be bent easily, and internal Conductive Core will not be affected easily, insulating materials
Filling can allow bending resistance item more firm, and can be improved its insulation performance.
The present invention is further arranged to: the bending resistance armor includes the interior buffer layer being looped around on separation sleeve, as interior
The bending resistance layer of buffer-layer surface, the outer buffer layer being attached on bending resistance layer and the braiding layer being coated on outer buffer layer.
Through the above technical solutions, the setting of inside and outside buffer layer can carry out bending resistance layer to be wrapped to form an entirety, compile
Tissue layer and separation sleeve cooperate, and protect to the structure of bending resistance layer and inside, prevent from penetrating.
The present invention is further arranged to: several fins is provided on the bending resistance layer, the fin is rolled over by the bending resistance layer
Bending at.
Through the above technical solutions, the setting of fin improves the anti-bending strength of bending resistance layer.
It is another object of the present invention to flame-retardant layer can be allowed to facilitate molding by the technique to provide a kind of technique.
A kind of cable-flame retardant formable layer technique, includes the following steps,
S1, injection form fire-retardant set in cable surface；
S2, impression carry out impression on fire-retardant set, form recess on fire-retardant set surface layer；
S3, injection spray fire retardant on fire-retardant set surface, by fire retardant injection cause recess and fire-retardant set surface；
S4, biphasic injection are injected again on surface and are formed protective layer.
Through the above technical solutions, injecting for the first time, fire-retardant set is formed, and then can be used as the carrier of fire retardant, passed through
Impression, forms recess, then by injection, allow fire retardant can be ejected into it is fire-retardant put on, while notch position can be with concentrating portions
Fire retardant, and then flame retardant agent content is allowed to increase, flame retardant effect is improved, is closed finally by biphasic injection, Jin Errang
Fire retardant is not fallen out.
The present invention is further arranged to: in injection, fire retardant temperature is greater than 80 DEG C.
Through the above technical solutions, can allow fire retardant that there is certain temperature, in turn using certain temperature when injection
Can be adhered to it is fire-retardant put on, improve the adhesive force of fire retardant.
The present invention is further arranged to: before SI injection, winding one layer of metal layer in cable surface.
Through the above technical solutions, allowing it to form protective layer, and then allow spray in SI injection advance row metal layer winding
When penetrating, flame-retardant layer will not be penetrated easily.
In conclusion the invention has the following advantages:
(1) by the setting of flame-retardant layer, it is allowed to have the effect of fire-retardant, flame-retardant layer is formed with by fire-retardant set and protective layer and is used for
The space of filler and fire-retardant, then filler and fire-retardant inside it, so that it is fire-retardant to allow it to have the effect of；
(2) attachment of fire retardant is carried out by way of injection, to make its attachment more convenient, and the temperature that rainbow is certain
It is sprayed, improves the adhesive strength of fire retardant and cable, achieved the purpose that improve fire retardant adhesion amount, improve flame retardant effect.
Detailed description of the invention
Fig. 1 is the program chart of the embodiment of the present invention 1；
Fig. 2 is roller structure sectional view；
Fig. 3 is the sectional view of embodiment 2；
Fig. 4 is the enlarged drawing in Fig. 3 at A；
Fig. 5 is the sectional view of embodiment 3；
Fig. 6 is the enlarged drawing in Fig. 5 at B.
Appended drawing reference: 1, Conductive Core；11, conductor；12, internal shield；2, insulation sleeve；3, external shielding layer；4, inner sheath；
5, flame-retardant layer；51, fire-retardant set；511, recess；52, fire retardant；53, protective layer；54, metal layer；6, separation sleeve；7, bending resistance armouring
Layer；71, bending resistance item；72, metal wrapping layer；73, braiding layer；74, groove；741, fire proofing；75, silica gel；76, interior buffering
Layer；77, bending resistance layer；771, fin；78, outer buffer layer；79, recessed groove；8, oversheath；9, idler wheel；91, concave ring；92, salient point.
Specific embodiment
Present invention will now be described in detail with reference to the accompanying drawings..
Embodiment 1
A kind of cable-flame retardant formable layer technique, as shown in Figure 1, include the following steps,
S1, injection form fire-retardant set 51 in cable surface；Cable in the step is generally semi-finished product cable, inside have
Conductive Core 1, shielded layer and insulating layer etc.；Directly inject to form fire-retardant set 51 by way of squeezing injection on its surface,
Rubber composition can be directly used in the material of fire-retardant set 51, can also be constituted using fire-retardant material, fire-retardant material can be adopted
With three kinds of specifications: 1, halogen fire proofing, such as polyvinyl chloride, neoprene, chlorosulfonated polyethylene, EP rubbers material；2,
Bittern-free flame-proof material, i.e., be added in polyolefine material inorganic fire retardants and phosphorus fire-retardant dosage form at material.
S2, impression carry out impression on fire-retardant set 51, form recess 511 on fire-retardant 51 surface layer of set；In the formation of fire-retardant set 51
Afterwards, in order to improve the adhesion amount of fire retardant 52, recess 511 is formed in fire-retardant 51 surface indentation of set；During impression, pass through
Idler wheel 9 carries out, and 9 structure of idler wheel is as shown in Fig. 2, it has the concave ring 91 cooperated with cable, and on the surface of concave ring 91, there are several
Salient point 92 allows it when squeezing, and is squeezed by salient point 92 and fire-retardant set 51, forms recess 511；
S3, injection, fire-retardant 51 surface of set spray fire retardant 52, by fire retardant 52 spray cause recess 511 in and fire-retardant set 51
Surface；By high-pressure injection rifle, multi-angle sprays fire-retardant set 51, so that fire retardant 52 be allowed to be adhered to fire-retardant 51 table of set
Face, meanwhile, in order to improve the adhesion strength during its injection, high-temperature injection is used in injection, so that is ejected is fire-retardant
Agent 52 can directly allow fire-retardant 51 surface of set is micro- to melt, and improve the dynamics of its adherency, meanwhile, when the dynamics of injection is larger, Ke Yirang
Fire retardant 52 penetrates into fire-retardant set 51；
S4, biphasic injection are injected again on surface and are formed protective layer 53, and after the completion of injection, surface forms one layer of high temperature resistant
The layer that fireproof fire retardant 52 is formed, then biphasic injection is carried out, allow it to protect fire retardant 52, and then it is fire-retardant to reach protection
The purpose of agent 52.
Wherein, in injection 52 temperature of fire retardant be greater than 80 DEG C, by this temperature, can with protective layer 53 into
Row contact when it is heated, achieve the purpose that it is micro- melt, fire retardant 52 can be effectively attached on fire-retardant set 51.It is infused in SI
Before penetrating, one layer of metal layer 54 is wound in cable surface, in this way, can protect to cable in injection, prevent fire retardant 52
Cable is penetrated after injection.In addition, in the present embodiment, fire retardant 52 is arranged to powdery flame retardent, such as magnesia, chlorine
Change calcium, aluminium oxide etc..
Embodiment 2
A kind of flame retardant cable, as shown in Figure 3 and Figure 4, including Conductive Core 1 and the insulation sleeve being coated on Conductive Core 12,
There are more conductors 11 for Conductive Core 1, finally wrap up more conductors 11 by internal shield 12, then in internal shield 12
Insulation sleeve 2 is set on surface, and internal shield 12 can be constituted using copper foil or other conductive metals.On insulation sleeve 2 successively
It is provided with external shielding layer 3, inner sheath 4, separation sleeve 6 and oversheath 8.The material of external shielding layer 3 uses and 12 phase of internal shield
Together, the mode of form or cladding that coating metal layer 54 can be directly used is formed.And inner sheath 4, separation sleeve 6 with
And oversheath 8 can protect Conductive Core 1, inner sheath 4 and oversheath 8 can be constituted using insulating materials such as rubber,
Separation sleeve 6 can be knitted to form using metal material, can also be knitted to form using insulating materials.It is fire-retardant in order to allow cable to have
Function, flame-retardant layer 5 is provided between inner sheath 4 and separation sleeve 6.
Wherein, as shown in Figure 3 and Figure 4, flame-retardant layer 5 includes fire-retardant set 51 and the fire retardant being arranged on fire-retardant set 51
52, fire-retardant set 51 is directly sleeved on inner sheath 4, and one layer of metal layer 54 is wrapped up on inner sheath 4, and metal layer 54 can use
Metal tape winding is wrapped to form.Fire retardant 52 can be constituted using inorganic material, at powder or graininess, as magnesia,
Aluminium oxide, calcium chloride etc., fire retardant 52 in this embodiment use magnesia or single or two kinds of mixing shapes in calcium chloride
At mixed proportion is that the ratio between magnesia and calcium chloride are 3:1 or 1:1, and wherein magnesia can also change aluminium oxide into, and ratio can
With identical, can be constituted using magnesia and aluminium oxide, ratio 1:1.In order to improve the attachment of the fire retardant 52 on fire-retardant set 51
Amount, is provided with recess 511 in fire-retardant 51 upper surface of set, fire retardant 52 is filled in recess 511, then has been filled in fire retardant 52
Afterwards, it is arranged protective layer 53 on fire-retardant set 51, allows it to carry out reinforcing fixation to the fire retardant 52 of filling, makes its more stable.Together
When, in this embodiment, flame-retardant layer 5 is formed by technique described in embodiment 1.
As shown in Figure 3 and Figure 4, it is provided with bending resistance armor 7 between separation sleeve 6 and oversheath 8, passes through bending resistance armor
7 improve the anti-bending strength and fire protecting performance of cable.Bending resistance armor 7 includes several bending resistance items 71 for surrounding the setting of separation sleeve 6, set
In the metal wrapping layer 72 on separation sleeve 6 and the braiding layer 73 being set on metal wrapping layer 72, bending resistance item 71 is as metal
Between wrapping layer 72 and separation sleeve 6.Separation sleeve 6 is all made of metal wire knitted with organization level and is formed, and anti-wears with stronger
Permeability damages to will not be penetrated into inside when bending resistance item 71 being allowed to receive extruding after placement.By 71 section of bending resistance item at V
Type setting, and the opening of V-type is arranged outwardly, and bending resistance item 71 is directly bent to form by steel bar.In order to allow bending resistance item 71 to compare
Stablize, insulating materials is filled between bending resistance item 71 and separation sleeve 6, can be constituted for electro-insulating rubber or plastics, and resist
Curved strip 71 is directly squeezed with braiding layer 73.Meanwhile it if can be filled to improve fire protecting performance in the position of fill insulant
Fire proofing 741, fire proofing 741 can using can discharge not so property gas fire retardant 52 constitute, as ammonium chloride particle,
Ammonium phosphate and ammonium carbonate particle are constituted, and by opening up groove 74 in insulating materials, fire proofing 741 is put into groove 74
It is interior, one layer of silica gel 75 is laid on its surface again, so that the placement to fire proofing 741 is completed, and when actual practical, V
There is fire-retardant effect in the bending resistance item 71 of type, in conjunction with silica gel 75, progress is fire-retardant in itself, meanwhile, there is hole in itself in silica gel 75, because
This, the fire retardant 52 of internal gasification can discharge other, further achieve the effect that fire-retardant.
Embodiment 3
A kind of flame retardant cable is substantially the same with embodiment 2, and difference is the setting of bending resistance armor 7.Such as Fig. 5 and Fig. 6
Shown, in embodiment 3, bending resistance armor 7 includes the interior buffer layer 76 being looped around on separation sleeve 6, as interior 76 table of buffer layer
The bending resistance layer 77 in face, the outer buffer layer 78 being attached on bending resistance layer 77 and the braiding layer 73 being coated on outer buffer layer 78, it is interior
Buffer layer 76 and outer buffer layer 78 are all made of insulating materials, such as rubber.In order to improve anti-bending strength, it is provided on bending resistance layer 77
Several fins 771, fin 771 are formed by 77 bending of bending resistance layer.Wherein, braiding layer 73 is identical as the braiding layer 73 in embodiment 2.
In order to improve flame retardant property, as shown in Figure 5 and Figure 6, recessed groove 79 is set on outer buffer layer 78, in recessed groove 79
Groove 74 is inside opened up, by fire proofing 741 as in groove 74, then silica gel 75 is laid in recessed groove 79, reaches fire-retardant mesh
's.Wherein fire proofing 741 can be constituted using the fire retardant 52 that can discharge not so property gas, such as ammonium chloride particle, phosphoric acid
Ammonium and ammonium carbonate particle are constituted.When in use, the first further progress protection of silica gel 75, and after the material melts of surrounding, it leaks out
Fire proofing 741 in groove 74, allows it to release fire-retardant gas, by the cooperation of itself and silica gel 75, it is allowed to carry out multi-angle
Carry out fire-retardant, raising flame retarding efficiency.
The above is only a preferred embodiment of the present invention, protection scope of the present invention is not limited merely to above-mentioned implementation
Example, all technical solutions belonged under thinking of the present invention all belong to the scope of protection of the present invention.It should be pointed out that for the art
Those of ordinary skill for, several improvements and modifications without departing from the principles of the present invention, these improvements and modifications
It should be regarded as protection scope of the present invention.
Claims (10)
1. a kind of flame retardant cable, including Conductive Core (1) and the insulation sleeve (2) being coated on Conductive Core (1), feature exists
In, external shielding layer (3), inner sheath (4), separation sleeve (6) and oversheath (8) are disposed on the insulation sleeve (2), it is described
It is provided between inner sheath (4) and separation sleeve (6) flame-retardant layer (5), the flame-retardant layer (5) includes that fire-retardant set (51) and setting exist
Fire retardant (52) on fire-retardant set (51), fire-retardant set (51) upper surface are provided with recess (511), and the fire retardant (52) is filled out
It fills in recess (511), and is arranged protective layer (53) on fire-retardant set (51).
2. flame retardant cable according to claim 1, which is characterized in that the fire retardant (52) uses magnesia or calcium chloride
In single or two kinds be mixed to form.
3. flame retardant cable according to claim 1, which is characterized in that be arranged between the separation sleeve (6) and oversheath (8)
There are bending resistance armor (7).
4. flame retardant cable according to claim 3, which is characterized in that the bending resistance armor (7) includes around separation sleeve
(6) be arranged several bending resistance items (71), cover the metal wrapping layer (72) on separation sleeve (6) and be set in metal wrapping layer
(72) braiding layer (73) on, the bending resistance item (71) is as between metal wrapping layer (72) and separation sleeve (6).
5. flame retardant cable according to claim 4, which is characterized in that bending resistance item (71) section resists at V-type setting
Insulating materials is filled between curved strip (71) and separation sleeve (6).
6. flame retardant cable according to claim 3, which is characterized in that the bending resistance armor (7) includes being looped around isolation
Interior buffer layer (76) on set (6), as interior buffer layer (76) surface bending resistance layer (77), be attached to it is outer on bending resistance layer (77)
Buffer layer (78) and the braiding layer (73) being coated on outer buffer layer (78).
7. flame retardant cable according to claim 6, which is characterized in that be provided with several fins on the bending resistance layer (77)
(771), the fin (771) is formed by bending resistance layer (77) bending.
8. a kind of cable-flame retardant formable layer technique, it is characterised in that include the following steps,
S1, injection form fire-retardant set (51) in cable surface；
S2, impression carry out impression on fire-retardant set (51), form recess (511) on fire-retardant set (51) surface layer；
S3, injection, fire-retardant set (51) surface spray fire retardant (52), by fire retardant (52) spray cause recess (511) in and
Fire-retardant set (51) surface；
S4, biphasic injection are injected again on surface and are formed protective layer (53).
9. cable-flame retardant formable layer technique according to claim 8, which is characterized in that fire retardant (52) temperature in injection
For greater than 80 DEG C.
10. cable-flame retardant formable layer technique according to claim 8, which is characterized in that before SI injection, in cable surface
Wind one layer of metal layer (54).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811408759.8A CN109545465B (en) | 2018-11-23 | 2018-11-23 | Cable flame-retardant layer forming process and flame-retardant cable |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811408759.8A CN109545465B (en) | 2018-11-23 | 2018-11-23 | Cable flame-retardant layer forming process and flame-retardant cable |
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| CN109545465A true CN109545465A (en) | 2019-03-29 |
| CN109545465B CN109545465B (en) | 2020-03-27 |
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| CN201811408759.8A Active CN109545465B (en) | 2018-11-23 | 2018-11-23 | Cable flame-retardant layer forming process and flame-retardant cable |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110444331A (en) * | 2019-08-19 | 2019-11-12 | 宋兴彬 | Composite fireproof cable |
| CN111883301A (en) * | 2020-08-04 | 2020-11-03 | 安徽环宇电缆集团有限公司 | Wear-resistant wind power cable |
| CN112735658A (en) * | 2020-12-28 | 2021-04-30 | 王永法 | Flame-retardant special-shaped cable and forming equipment for flame-retardant layer thereof |
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| CN112768132A (en) * | 2020-12-31 | 2021-05-07 | 铭品电缆集团股份有限公司 | Fireproof pressure-resistant rubber special-shaped cable and preparation process thereof |
| CN114937524A (en) * | 2022-06-27 | 2022-08-23 | 宁波新天用电线电缆实业有限公司 | High-flame-retardancy cable and preparation method thereof |
| CN114937524B (en) * | 2022-06-27 | 2024-01-23 | 宁波新天用电线电缆实业有限公司 | High-flame-retardance cable and preparation method thereof |
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Effective date of registration: 20220719 Address after: 314200 no.599 Jinsha Road, Xincang Town, Pinghu City, Jiaxing City, Zhejiang Province Patentee after: ZHEJIANG CARDIFF CABLE Co.,Ltd. Patentee after: SHANGHAI CARDIFF CABLE Co.,Ltd. Address before: 201600 room 1903, building 34, No. 258, Xinzhuan Road, Songjiang high tech park, Caohejing Development Zone, Songjiang District, Shanghai Patentee before: SHANGHAI CARDIFF CABLE Co.,Ltd. |