CN106409396A - Flexible fireproof cable and preparation method thereof - Google Patents
Flexible fireproof cable and preparation method thereof Download PDFInfo
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- CN106409396A CN106409396A CN201610904889.5A CN201610904889A CN106409396A CN 106409396 A CN106409396 A CN 106409396A CN 201610904889 A CN201610904889 A CN 201610904889A CN 106409396 A CN106409396 A CN 106409396A
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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
- H01B7/02—Disposition of insulation
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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
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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
- H01B13/2613—Sheathing; Armouring; Screening; Applying other protective layers by winding, braiding or longitudinal lapping by 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
- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
- H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
- H01B3/30—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes
- H01B3/44—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes vinyl resins; acrylic resins
- H01B3/441—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes vinyl resins; acrylic resins from alkenes
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
- H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
- H01B3/30—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes
- H01B3/46—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes silicones
- H01B3/465—Silicone oils
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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
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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
- H01B7/28—Protection against damage caused by moisture, corrosion, chemical attack or weather
- H01B7/2806—Protection against damage caused by corrosion
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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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- 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
- H01B7/292—Protection against damage caused by extremes of temperature or by flame using material resistant to heat
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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
- H01B7/36—Insulated conductors or cables characterised by their form with distinguishing or length marks
- H01B7/361—Insulated conductors or cables characterised by their form with distinguishing or length marks being the colour of the insulation or conductor
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables
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Abstract
The invention discloses a flexible fireproof cable and a preparation method thereof. The cable having a four-equal-core cable core comprises three conductor wire cores, ground wires, a cladding layer, an inner sheath, and a ceramic polyolefin outer sheath. A filling layer encircles the conductor wire cores and the ground wires; the cladding layer coats the periphery of the filling layer; the inner sheath coats the outside of the cladding layer; and the outer sheath coats the outside of the inner sheath. Conductors, insulating layers, high-temperature color-separation belts, and wrapping layers are arranged inside the conductor wire cores and the ground wires successively from inside to outside. In addition, the preparation method includes: a ceramic polyolefin outer sheath material is prepared; and then copper belt releasing, tension adjusting, belt feeding positioning, precise wasted edge cutting, longitudinal cladding and forming, longitudinal seaming and welding, eddy current type crack detection, cooling and lubrication, stretching and sizing, embossing, washing and drying, outer sheath extrusion, laser cable printing, and winding displacement are carried out, thereby obtaining a flexible fireproof cable. The cable has advantages of high flexibility and good high-temperature-resistant and explosion-proof performances; the cable can work for long time at a temperature of 250 DEG C and the hot temperature can reach up to 1600 DEG C.
Description
Technical field
The present invention relates to power equipment and its manufacture field, more particularly, to a kind of flexible fire-proof cable and preparation method thereof.
Background technology
In prior art, cable, the insulating materials of electric wire are all high-molecular organic materials, easily charcoal under flame condition
Change, lose insulating effect.Fireproof cable is the key equipment such as whole electric power foundation engineering, fire-fighting system, if not good fire prevention
Conducting system, will result in power transmission and transformation system paralysis.How to play normal function of transmitting electricity under flame condition is fireproof cable
A difficult problem.
At present, magnesium oxide fireproof cable is at home and abroad extensively applied, but it is subject to the many-side such as factory length, insulating properties
Impact, its range is less, and is unable to long length and produces it is impossible to bending；Copper core embossing copper sheath fireproof cable is then not only
Solve the problems, such as that magnesium oxide fireproof cable bending property is little, but affect to prevent for peripheral sheath is then oxidized easily with copper merely
Fiery performance.
Content of the invention
The purpose of the present invention is to overcome above-mentioned fireproof cable defect of the prior art and provides a kind of flexible fire-proof cable,
Achieve cable for a long time under flame environment normal work requirement, there is corrosion-resistant, high temperature resistant, explosion-proof characteristic.The present invention
Another mesh be that a kind of preparation method of flexible fire-proof cable is provided.
The purpose of the present invention is achieved through the following technical solutions：
A kind of preparation method of flexible fire-proof cable, it comprises the steps：
（1）Prepare ceramic polyolefin oversheath material,
Ethene -30 70 parts of zinc alkene copolymer
20 80 parts of ethylene-vinyl acetate copolymer
18 parts of compatilizer EVA
10 50 parts of magnesium hydroxide
10 50 parts of aluminium hydroxide
1010 0.1 0.5 parts of antioxidant
15 parts of Tissuemat E
12 parts of coupling agent A-172
200 400 parts of potter's clay
12 parts of methyl-silicone oil
20 120 parts of ceramic powder
5 15 parts of color masterbatch
By the ethene of above-mentioned weight portion-zinc alkene copolymer, ethylene-vinyl acetate copolymer, compatilizer EVA, magnesium hydroxide, hydrogen
Aluminum oxide, 1010 antioxidant, Tissuemat E and coupling agent A-172, add in banbury banburying 10-15 minute to 100-120
DEG C, obtain mixture A；
Add 200 400 parts of potter's clay and methyl-silicone oil 1-2 part in said mixture A, banburying 6-20 minute to 135-155 DEG C,
Obtain mixture B；
Add ceramic powder 20-120 part, color masterbatch 5-15 part in said mixture B, banburying 15-40 minute, to 145-165 DEG C, is stopped
Only banburying, obtains ceramic polyolefin oversheath material, is cooled to room temperature, standby；
（2）Prepare flexible fire-proof cable,
Put band, copper strips tension adjustment, copper strips positioning fine cut, winding copper strips through core unwrapping wire, core tension adjustment, copper strips simultaneously
Send into the cable that longitudinal tubing machine obtains longitudinal tubing, the cable of longitudinal tubing is carried out docking longitudinal joint under inert gas shielding
Welding, eddy current inspection, cooling and lubricating, stretching sizing, embossing and cleaning dry up and obtain preliminary molding cable；By above-mentioned steps（1）
In the ceramic polyolefin oversheath material that obtains dry up with cleaning after cable together with extrude oversheath, warp through double screw extruder
Coding, tune tension force and winding displacement, finally give flexible fire-proof cable.
Preferably, described inert gas is argon gas, and the pressure of described argon gas is 5-15Mpa；The electric current of described longitudinal seam welding
For 40-190A.
Preferably, the pressure of described argon gas is 10Mpa；The electric current of described longitudinal seam welding is 90A.
Preferably, described ethylene-vinyl acetate copolymer is EVA260, and described compatilizer EVA is grafted for maleic anhydride
EVA blend, described coupling agent A-172 be super high molecular weight polysiloxanes, described 1010 antioxidant be tetrapentaerythritol
Ester, described methyl-silicone oil is dimethicone 201, and described color masterbatch is that EVA primary colours are female.
The present invention described in any of the above-described method preparation flexible fire-proof cable, including three conductor thread cores,
Line, belting layer and inner sheath, also include oversheath, and described oversheath is ceramic polyolefin oversheath, described ceramic polyene
Hydrocarbon oversheath thickness is 3.0-5.0mm；Described conductor thread core and ground wire periphery are provided with packed layer；Described packed layer periphery cladding bag
Belt；Cladding inner sheath outside described belting layer；Described oversheath is coated outside described inner sheath；Described three conductor thread cores and
Ground wire is equipped with conductor, insulating barrier, high temperature color separation band and lapping layer from the inside to the outside.
Preferably, described high temperature color separation band prolongs conductor thread core or ground wire length direction is spaced apart.
Preferably, described flexible fire-proof cable is fourth class core cable；Described belting layer is synthetic mica belt, described interior shield
Cover for argon arc welding embossing copper sheath, described packed layer is inorfil filling silk；Described conductor is bare copper wire or coating copper wire,
Described insulating barrier is silicon rubber composite band insulating barrier, and described lapping layer is gold mica tape lapping layer.
Preferably, described thickness of insulating layer is 0.4-2.0mm；Overlapping wrapped 3 layers of described lapping layer, thickness is 0.4-
0.6mm, Duplication is 40%-55%；Described belting layer Duplication is 40%-55%；Described inner sheath thickness is 0.4-1.2mm.
Preferably, described thickness of insulating layer is 1.2mm；Described lapping layer thickness is 0.5mm, and Duplication is 50%；Described bag
Belt Duplication is 50%；Described inner sheath thickness is 0.8mm.
Preferably, described ceramic polyolefin oversheath thickness is 4.0mm.
Beneficial effects of the present invention are specific as follows：
（1）Coat one layer of ceramic polyolefin fire prevention oversheath again in copper sheath periphery, not only overcome copper in prior art long
Phase is using the defect being oxidized easily, and disclosure satisfy that cable allows 250 DEG C of requirements of operating temperature for a long time；Thermal insulation heat-proof quality
Excellent, the fusing point of copper sheath is 1083 DEG C, ceramic polyolefin prevent fires oversheath chance fire temperature may be up to 1600 DEG C, the time gets over
Ceramic armour body after long burning is harder；And non-aging, have a safety feature so that cable can continue normal confession in flame
Electricity；
（2）High temperature color separation band prolongs conductor thread core or ground wire length direction is spaced apart, overcomes in traditional handicraft and prolongs color separation band
Radially cladding causes the shortcoming wasting in a large number to cable core, greatly reduces production cost；And high temperature color separation band is arranged on lapping layer
Inside, reduces impact high temperature color separation band being caused because of factors such as long term high temperature work, so that high temperature color separation band is more effectively sent out
Wave the mark action to cable core；
（3）It is used silicon rubber composite band as insulating barrier, overcome with high-molecular organic material as insulating barrier in prior art,
The shortcoming easily carbonizing, losing insulating effect under flame condition, has the advantages that high temperature resistant, good insulation preformance；
（4）By silicon rubber composite band insulating barrier, gold mica tape lapping layer, synthetic mica belt, argon arc welding embossing copper sheath and
Ceramic polyolefin fire prevention oversheath be coated togather, constitute flexible fire-proof cable, have current-carrying capacity big, flexible, corrosion-resistant,
The good characteristic of explosion-proof performance；
（5）The preparation method of the flexible fire-proof cable of the present invention, has process is simple, low production cost, can continuously long length give birth to
Product, safe and environment-friendly advantage.
Brief description
Fig. 1 is the schematic cross-section of the flexible fire-proof cable of the present invention；
Fig. 2 is the schematic cross-section of conductor thread core and ground wire；
Fig. 3 is conductor thread core side schematic view；
Fig. 4 is the process units schematic flow sheet of the flexible fire-proof cable of the present invention.
In figure：1- conductor thread core, 2- packed layer, 3- ground wire, 4- oversheath, 5- belting layer, 6- inner sheath, 7- insulating barrier,
8- conductor, 9- high temperature color separation band, 10- lapping layer, 11- cable paying out machine, 12- core tension controller, 13- puts band automatically
Machine, 14- copper strips tension controller, 15- forward (FWD) locator, 16- smoothing mill, 17- fine cut slitter edge winder, 18- is accurate wheeled vertical
Wrap molding machine, 19- longitudinal seam welding machine, 20- eddy current flaw detec, 21- cooling and lubricating device, 22- stretching sizing instrument, 23- embossing calender,
24- cleans blow-dry device, 25- extruder, 26- cable laser code spraying device, 27- cable takeup tension controller, and 28- cable is automatic
Drawing and rolling machine.
Specific embodiment
With reference to specific embodiments and the drawings, the present invention is described in detail.The scope of the present invention is not limited to implement
Example, those skilled in the art any modification made or change in the range of claims of the present invention limits are accordingly to be regarded as this
The scope of bright protection.
The process units of the flexible fire-proof cable of the present invention is as shown in figure 4, include：Cable paying out machine 11, cable core line tension
Controller 12, puts band machine 13, copper strips tension controller 14, forward (FWD) locator 15, smoothing mill 16, fine cut slitter edge winder automatically
17, accurate wheeled longitudinal tubing machine 18, longitudinal seam welding machine 19, eddy current flaw detec 20, cooling and lubricating device 21, stretch sizing instrument
22, embossing calender 23, cleans blow-dry device 24, extruder 25, cable laser code spraying device 26, cable takeup tension controller 27, electricity
The automatic drawing and rolling machine of cable 28.It is sequentially connected in series between each process units.
Embodiment 1
The preparation method of the flexible fire-proof cable of embodiments of the invention 1, comprises the steps：
（1）Prepare ceramic polyolefin oversheath material,
By 50 parts of EVA260, ethene -50 parts of zinc alkene copolymer, maleic anhydride grafting 3 parts of EVA blend, 20 parts of aluminium hydroxide,
30 parts, 0.2 part tetrapentaerythritol ester of magnesium hydroxide, 3 parts and 2 parts super high molecular weight polysiloxanes of Tissuemat E add in banbury
Banburying 15 minutes to 110 DEG C, obtains mixture A；
Add the dimethicone 201 of 300 parts and 2 parts of potter's clay in said mixture A, banburying is mixed for 8 minutes to 145 DEG C
Compound B；
Add female 8.5 parts of 60 parts of ceramic powder, EVA primary colours, banburying 30 minutes to 165 DEG C in said mixture B, stop banburying,
Ceramic polyolefin oversheath material, is cooled to room temperature, standby；
（2）Prepare flexible fire-proof cable,
Three conductor thread cores 1 and ground wire 3, through cable paying out machine 11 unwrapping wire, adjust tension force with core tension controller 12；Copper strips
Put band through automatically putting band machine 13, adjust copper strips tension force with copper strips tension controller 14；Copper strips is through forward (FWD) locator 15 to copper strips essence
Cut machine 16 fine cut, wind through copper strips fine cut slitter edge winder 17；Copper strips after winding is sent into accurate wheeled longitudinal tubing machine 18 and is become
Type, the cable of longitudinal tubing docks longitudinal seam welding, longitudinal seam welding electric current through longitudinal seam welding machine 19 is continuous under the protection of 10Mpa argon gas
In for 90A；, through eddy current flaw detec 20 to cooling and lubricating device 21, drawn sizing instrument 22 is to embossing calender for cable after butt weld
23 embossing, clean in cleaning blow-dry device 24 and dry up；By above-mentioned steps（1）In the ceramic polyolefin oversheath material that obtains with
Cable after cleaning dries up extrudes oversheath 4 through double screw extruder 25 together；Through cable laser code spraying device 26 coding, through cable
Tension controller 27 adjusts tension force, through the automatic drawing and rolling machine of cable 28 winding displacement, finally gives flexible fire-proof cable.
The flexible fire-proof cable of the embodiment of the present invention 1, as shown in figure 1, be fourth class core cable, including three conductor thread cores 1,
Ground wire 3, belting layer 5 and inner sheath 6, also include the ceramic polyolefin oversheath 4 that thickness is 3.0mm, described conductor thread core 1 with
Ground wire 3 periphery is provided with packed layer 2；Described packed layer 2 fills silk and periphery cladding belting layer 5 for inorfil；Described belting layer 5
For synthetic mica belt, Duplication is 40% and the outside cladding inner sheath 6 of belting layer 5；Described inner sheath 6 is 0.4mm's for thickness
Argon arc welding embossing copper sheath and outside coating ceramic polyolefin oversheath 4, not only overcoming copper in prior art makes for a long time
With the defect being oxidized easily, and disclosure satisfy that cable allows 250 DEG C of requirements of operating temperature for a long time, thermal insulation heat-proof quality is excellent
Different, meet fiery temperature may be up to 1600 DEG C, the ceramic armour body after time longer burning harder；And non-aging, security performance
Well so that cable can continue normal power supply in flame；
As shown in Fig. 2 the three of the flexible fire-proof cable of the embodiment of the present invention 1 conductor thread cores 1 and ground wire 3 are from the inside to the outside all successively
It is provided with conductor 8, insulating barrier 7, high temperature color separation band 9 and lapping layer 10；Described conductor 8 is coating copper wire；Described insulating barrier 7 is silicon rubber
Glue composite band insulating barrier, thickness is 0.4mm；Described lapping layer 10 is gold mica tape lapping layer, overlapping wrapped 3 layers, and thickness is
0.4mm, Duplication is 40%；High temperature color separation band 9 is arranged on inside lapping layer 10, reduces because of factors such as long term high temperature work
The impact that high temperature color separation band 9 is caused, makes high temperature color separation band 9 more effectively play the mark action to cable core；
As shown in figure 3, high temperature color separation band 9 prolongs conductor thread core 1 or ground wire 3 length direction is spaced apart；Overcome in traditional handicraft
Color separation band is prolonged cable core, and radially cladding causes the shortcoming wasting in a large number, greatly reduces production cost.
Embodiment 2
The preparation method of the flexible fire-proof cable of the embodiment of the present invention 2, comprises the steps：
（1）Prepare ceramic polyolefin oversheath material,
By 30 parts of EVA260, ethene -20 parts of zinc alkene copolymer, 1 part of the EVA blend of maleic anhydride grafting, aluminium hydroxide 10
Part, 10 parts, 0.1 part tetrapentaerythritol ester of magnesium hydroxide, 1 part and 1 part super high molecular weight polysiloxanes of Tissuemat E add banburying
In machine, banburying 10 minutes to 100 DEG C, obtain mixture A；
Add the dimethicone 201 of 200 parts and 1 part of potter's clay in said mixture A, banburying is mixed for 6 minutes to 135 DEG C
Compound B；
Add female 5 parts of 20 parts of ceramic powder, EVA primary colours, banburying 15 minutes to 145 DEG C in said mixture B, stop banburying, pottery
Porcelain polyolefin oversheath material, is cooled to room temperature, standby；
（2）Prepare flexible fire-proof cable,
Three conductor thread cores 1 and ground wire 3, through cable paying out machine 11 unwrapping wire, adjust tension force with core tension controller 12；Copper strips
Put band through automatically putting band machine 13, adjust copper strips tension force with copper strips tension controller 14；Copper strips is through forward (FWD) locator 15 to copper strips essence
Cut machine 16 fine cut, wind through copper strips fine cut slitter edge winder 17；Copper strips after winding is sent into accurate wheeled longitudinal tubing machine 18 and is become
Type, the cable of longitudinal tubing docks longitudinal seam welding, longitudinal seam welding electric current through longitudinal seam welding machine 19 is continuous under the protection of 5Mpa argon gas
In for 40A；, through eddy current flaw detec 20 to cooling and lubricating device 21, drawn sizing instrument 22 is to embossing calender for cable after butt weld
23 embossing, clean in cleaning blow-dry device 24 and dry up；By above-mentioned steps（1）In the ceramic polyolefin oversheath material that obtains with
Cable after cleaning dries up extrudes oversheath 4 through double screw extruder 25 together；Through cable laser code spraying device 26 coding, through cable
Tension controller 27 adjusts tension force, through the automatic drawing and rolling machine of cable 28 winding displacement, finally gives flexible fire-proof cable.
The flexible fire-proof cable of the embodiment of the present invention 2, as shown in figure 1, be fourth class core cable, including three conductor thread cores 1,
Ground wire 3, belting layer 5 and inner sheath 6, also include the ceramic polyolefin oversheath 4 that thickness is 5.0mm, described conductor thread core 1 with
Ground wire 3 periphery is provided with packed layer 2；Described packed layer 2 fills silk and periphery cladding belting layer 5 for inorfil；Described belting layer 5
For synthetic mica belt, Duplication is 55% and the outside cladding inner sheath 6 of belting layer 5；Described inner sheath 6 is 1.2mm's for thickness
Argon arc welding embossing copper sheath and outside coating ceramic polyolefin oversheath 4, not only overcoming copper in prior art makes for a long time
With the defect being oxidized easily, and disclosure satisfy that cable allows 250 DEG C of requirements of operating temperature for a long time, thermal insulation heat-proof quality is excellent
Different, meet fiery temperature may be up to 1600 DEG C, the ceramic armour body after time longer burning harder；And non-aging, security performance
Well so that cable can continue normal power supply in flame；
As shown in Fig. 2 the three of the flexible fire-proof cable of the embodiment of the present invention 2 conductor thread cores 1 and ground wire 3 are from the inside to the outside all successively
It is provided with conductor 8, insulating barrier 7, high temperature color separation band 9 and lapping layer 10；Described conductor 8 is coating copper wire；Described insulating barrier 7 is silicon rubber
Glue composite band insulating barrier, thickness is 2.0mm；Described lapping layer 10 is gold mica tape lapping layer, overlapping wrapped 3 layers, and thickness is
0.6mm, Duplication is 55%；High temperature color separation band 9 is arranged on inside lapping layer 10, reduces because of factors such as long term high temperature work
The impact that high temperature color separation band 9 is caused, makes high temperature color separation band 9 more effectively play the mark action to cable core；
As shown in figure 3, high temperature color separation band 9 prolongs conductor thread core 1 or ground wire 3 length direction is spaced apart；Overcome in traditional handicraft
Color separation band is prolonged cable core, and radially cladding causes the shortcoming wasting in a large number, greatly reduces production cost.
Embodiment 3
The preparation method of the flexible fire-proof cable of the embodiment of the present invention 3, comprises the steps：
（1）Prepare ceramic polyolefin oversheath material,
By 70 parts of EVA260, ethene -80 parts of zinc alkene copolymer, 8 parts of the EVA blend of maleic anhydride grafting, aluminium hydroxide 50
Part, 50 parts, 0.1 part tetrapentaerythritol ester of magnesium hydroxide, 5 parts and 2 parts super high molecular weight polysiloxanes of Tissuemat E add banburying
In machine, banburying 15 minutes to 120 DEG C, obtain mixture A；
Add the dimethicone 201 of 400 parts and 2 parts of potter's clay in said mixture A, banburying is mixed for 20 minutes to 155 DEG C
Compound B；
Add female 15 parts of 120 parts of ceramic powder, EVA primary colours, banburying 40 minutes to 165 DEG C in said mixture B, stop banburying,
Ceramic polyolefin oversheath material, is cooled to room temperature, standby；
（2）Prepare flexible fire-proof cable,
Three conductor thread cores 1 and ground wire 3, through cable paying out machine 11 unwrapping wire, adjust tension force with core tension controller 12；Copper strips
Put band through automatically putting band machine 13, adjust copper strips tension force with copper strips tension controller 14；Copper strips is through forward (FWD) locator 15 to copper strips essence
Cut machine 16 fine cut, wind through copper strips fine cut slitter edge winder 17；Copper strips after winding is sent into accurate wheeled longitudinal tubing machine 18 and is become
Type, the cable of longitudinal tubing docks longitudinal seam welding, longitudinal seam welding electric current through longitudinal seam welding machine 19 is continuous under the protection of 15Mpa argon gas
In for 190A；, through eddy current flaw detec 20 to cooling and lubricating device 21, drawn sizing instrument 22 is to embossing for cable after butt weld
Machine 23 embossing, cleans in cleaning blow-dry device 24 and dries up；By above-mentioned steps（1）In after the mixture C that obtains dried up with cleaning
Cable together through double screw extruder 25 extrude oversheath 4；Through cable laser code spraying device 26 coding, through cable stretch controller
27 tune tension force, through the automatic drawing and rolling machine of cable 28 winding displacement, finally give flexible fire-proof cable.
The flexible fire-proof cable of the embodiment of the present invention 3, as shown in figure 1, be fourth class core cable, including three conductor thread cores 1,
Ground wire 3, belting layer 5 and inner sheath 6, also include the ceramic polyolefin oversheath 4 that thickness is 4.0mm, described conductor thread core 1 with
Ground wire 3 periphery is provided with packed layer 2；Described packed layer 2 fills silk and periphery cladding belting layer 5 for inorfil；Described belting layer 5
For synthetic mica belt, Duplication is 50% and the outside cladding inner sheath 6 of belting layer 5；Described inner sheath 6 is 0.8mm's for thickness
Argon arc welding embossing copper sheath and outside coating ceramic polyolefin oversheath 4；
As shown in Fig. 2 the three of the flexible fire-proof cable of the embodiment of the present invention 3 conductor thread cores 1 and ground wire 3 are from the inside to the outside all successively
It is provided with conductor 8, insulating barrier 7, high temperature color separation band 9 and lapping layer 10；Described conductor 8 is coating copper wire；Described insulating barrier 7 is silicon rubber
Glue composite band insulating barrier, thickness is 1.2mm；Described lapping layer 10 is gold mica tape lapping layer, overlapping wrapped 3 layers, and thickness is
0.5mm, Duplication is 50%；High temperature color separation band 9 is arranged on inside lapping layer 10；
As shown in figure 3, high temperature color separation band 9 prolongs conductor thread core 1 or ground wire 3 length direction is spaced apart.
Embodiment 4
The preparation method of the flexible fire-proof cable of the embodiment of the present invention 4, comprises the steps：
（1）Prepare ceramic polyolefin oversheath material,
By 60 parts of EVA260, ethene -60 parts of zinc alkene copolymer, 5 parts of the EVA blend of maleic anhydride grafting, aluminium hydroxide 30
Part, 40 parts, 0.2 part tetrapentaerythritol ester of magnesium hydroxide, 4 parts and 2 parts super high molecular weight polysiloxanes of Tissuemat E add banburying
In machine, banburying 15 minutes to 120 DEG C, obtain mixture A；
Add the dimethicone 201 of 350 parts and 2 parts of potter's clay in said mixture A, banburying is mixed for 15 minutes to 150 DEG C
Compound B；
Add female 10 parts of 80 parts of ceramic powder, EVA primary colours, banburying 25 minutes to 150 DEG C in said mixture B, stop banburying, pottery
Porcelain polyolefin oversheath material, is cooled to room temperature, standby；
（2）Prepare flexible fire-proof cable,
Three conductor thread cores 1 and ground wire 3, through cable paying out machine 11 unwrapping wire, adjust tension force with core tension controller 12；Copper strips
Put band through automatically putting band machine 13, adjust copper strips tension force with copper strips tension controller 14；Copper strips is through forward (FWD) locator 15 to copper strips essence
Cut machine 16 fine cut, wind through copper strips fine cut slitter edge winder 17；Copper strips after winding is sent into accurate wheeled longitudinal tubing machine 18 and is become
Type, the cable of longitudinal tubing docks longitudinal seam welding, longitudinal seam welding electric current through longitudinal seam welding machine 19 is continuous under the protection of 15Mpa argon gas
In for 190A；, through eddy current flaw detec 20 to cooling and lubricating device 21, drawn sizing instrument 22 is to embossing for cable after butt weld
Machine 23 embossing, cleans in cleaning blow-dry device 24 and dries up；By above-mentioned steps（1）In after the mixture C that obtains dried up with cleaning
Cable together through double screw extruder 25 extrude oversheath 4；Through cable laser code spraying device 26 coding, through cable stretch controller
27 tune tension force, through the automatic drawing and rolling machine of cable 28 winding displacement, finally give flexible fire-proof cable.
The flexible fire-proof cable of the embodiment of the present invention 3, as shown in figure 1, be fourth class core cable, including three conductor thread cores 1,
Ground wire 3, belting layer 5 and inner sheath 6, also include the ceramic polyolefin oversheath 4 that thickness is 4.0mm, described conductor thread core 1 with
Ground wire 3 periphery is provided with packed layer 2；Described packed layer 2 fills silk and periphery cladding belting layer 5 for inorfil；Described belting layer 5
For synthetic mica belt, Duplication is 50% and the outside cladding inner sheath 6 of belting layer 5；Described inner sheath 6 is 0.8mm's for thickness
Argon arc welding embossing copper sheath and outside coating ceramic polyolefin oversheath 4；
As shown in Fig. 2 the three of the flexible fire-proof cable of the embodiment of the present invention 3 conductor thread cores 1 and ground wire 3 are from the inside to the outside all successively
It is provided with conductor 8, insulating barrier 7, high temperature color separation band 9 and lapping layer 10；Described conductor 8 is coating copper wire；Described insulating barrier 7 is silicon rubber
Glue composite band insulating barrier, thickness is 1.2mm；Described lapping layer 10 is gold mica tape lapping layer, overlapping wrapped 3 layers, and thickness is
0.5mm, Duplication is 50%；High temperature color separation band 9 is arranged on inside lapping layer 10；
As shown in figure 3, high temperature color separation band 9 prolongs conductor thread core 1 or ground wire 3 length direction is spaced apart.
Embodiment 5
The preparation method of the flexible fire-proof cable of embodiments of the invention 5, comprises the steps：
（1）Prepare ceramic polyolefin oversheath material,
By 40 parts of EVA260, ethene -40 parts of zinc alkene copolymer, maleic anhydride grafting 6 parts of EVA blend, 40 parts of aluminium hydroxide,
20 parts, 0.2 part tetrapentaerythritol ester of magnesium hydroxide, 2 parts and 2 parts super high molecular weight polysiloxanes of Tissuemat E add in banbury
Banburying 13 minutes to 110 DEG C, obtains mixture A；
Add the dimethicone 201 of 250 parts and 2 parts of potter's clay in said mixture A, banburying is mixed for 10 minutes to 140 DEG C
Compound B；
Add female 8 parts of 40 parts of ceramic powder, EVA primary colours, banburying 25 minutes to 160 DEG C in said mixture B, stop banburying, pottery
Porcelain polyolefin oversheath material, is cooled to room temperature, standby；
（2）Prepare flexible fire-proof cable,
Three conductor thread cores 1 and ground wire 3, through cable paying out machine 11 unwrapping wire, adjust tension force with core tension controller 12；Copper strips
Put band through automatically putting band machine 13, adjust copper strips tension force with copper strips tension controller 14；Copper strips is through forward (FWD) locator 15 to copper strips essence
Cut machine 16 fine cut, wind through copper strips fine cut slitter edge winder 17；Copper strips after winding is sent into accurate wheeled longitudinal tubing machine 18 and is become
Type, the cable of longitudinal tubing docks longitudinal seam welding, longitudinal seam welding electric current through longitudinal seam welding machine 19 is continuous under the protection of 10Mpa argon gas
In for 90A；, through eddy current flaw detec 20 to cooling and lubricating device 21, drawn sizing instrument 22 is to embossing calender for cable after butt weld
23 embossing, clean in cleaning blow-dry device 24 and dry up；By above-mentioned steps（1）In the ceramic polyolefin oversheath material that obtains with
Cable after cleaning dries up extrudes oversheath 4 through double screw extruder 25 together；Through cable laser code spraying device 26 coding, through cable
Tension controller 27 adjusts tension force, through the automatic drawing and rolling machine of cable 28 winding displacement, finally gives flexible fire-proof cable.
The flexible fire-proof cable of the embodiment of the present invention 1, as shown in figure 1, be fourth class core cable, including three conductor thread cores 1,
Ground wire 3, belting layer 5 and inner sheath 6, also include the ceramic polyolefin oversheath 4 that thickness is 3.0mm, described conductor thread core 1 with
Ground wire 3 periphery is provided with packed layer 2；Described packed layer 2 fills silk and periphery cladding belting layer 5 for inorfil；Described belting layer 5
For synthetic mica belt, Duplication is 40% and the outside cladding inner sheath 6 of belting layer 5；Described inner sheath 6 is 0.4mm's for thickness
Argon arc welding embossing copper sheath and outside coating ceramic polyolefin oversheath 4, not only overcoming copper in prior art makes for a long time
With the defect being oxidized easily, and disclosure satisfy that cable allows 250 DEG C of requirements of operating temperature for a long time, thermal insulation heat-proof quality is excellent
Different, meet fiery temperature may be up to 1600 DEG C, the ceramic armour body after time longer burning harder；And non-aging, security performance
Well so that cable can continue normal power supply in flame；
As shown in Fig. 2 the three of the flexible fire-proof cable of the embodiment of the present invention 1 conductor thread cores 1 and ground wire 3 are from the inside to the outside all successively
It is provided with conductor 8, insulating barrier 7, high temperature color separation band 9 and lapping layer 10；Described conductor 8 is coating copper wire；Described insulating barrier 7 is silicon rubber
Glue composite band insulating barrier, thickness is 0.4mm；Described lapping layer 10 is gold mica tape lapping layer, overlapping wrapped 3 layers, and thickness is
0.4mm, Duplication is 40%；High temperature color separation band 9 is arranged on inside lapping layer 10, reduces because of factors such as long term high temperature work
The impact that high temperature color separation band 9 is caused, makes high temperature color separation band 9 more effectively play the mark action to cable core；
As shown in figure 3, high temperature color separation band 9 prolongs conductor thread core 1 or ground wire 3 length direction is spaced apart；Overcome in traditional handicraft
Color separation band is prolonged cable core, and radially cladding causes the shortcoming wasting in a large number, greatly reduces production cost.
The flexible fire-proof cable of method of the present invention preparation, has high strength flexible performance, in bend test and flattening
Copper sheath flawless and crack after test, under the voltage of 1250V, 15min, cable does not puncture；Fireproof jointing sheath of the present invention is by copper
Inner sheath and high-strength ceramic polyolefin oversheath composition, the fusing point of copper is 1083 DEG C, and ceramic polyolefin oversheath meets fire
Temperature may be up to 1600 DEG C, the time longer burning after ceramic armour body harder, therefore temperature be less than 1600 DEG C when, cable knot
Structure is not in problem；In fire resistance test, the cable in the present invention is subject to 950 DEG C of fire, 90min, and after cooling 15min, cable is tied
Structure is complete；The cable of the present invention can not only meet the requirement of GB/T19216 and IEC60331, also can meet Britain's BS6387 standard
The requirement of the A level, B level and C level of regulation, and also can tolerate water spray and mechanical impact in burning；Additionally, the cable of the present invention
The requirement of 250 DEG C of Long-term service temperature in the case of an overload, can also be met.
Claims (10)
1. a kind of preparation method of flexible fire-proof cable is it is characterised in that it comprises the steps：
（1）Prepare ceramic polyolefin oversheath material,
Ethene -30 70 parts of zinc alkene copolymer
20 80 parts of ethylene-vinyl acetate copolymer
18 parts of compatilizer EVA
10 50 parts of magnesium hydroxide
10 50 parts of aluminium hydroxide
1010 0.1 0.5 parts of antioxidant
15 parts of Tissuemat E
12 parts of coupling agent A-172
200 400 parts of potter's clay
12 parts of methyl-silicone oil
20 120 parts of ceramic powder
5 15 parts of color masterbatch
By the ethene of above-mentioned weight portion-zinc alkene copolymer, ethylene-vinyl acetate copolymer, compatilizer EVA, magnesium hydroxide, hydrogen
Aluminum oxide, 1010 antioxidant, Tissuemat E and coupling agent A-172, add in banbury banburying 10-15 minute to 100-120
DEG C, obtain mixture A；
Add 200 400 parts of potter's clay and methyl-silicone oil 1-2 part in said mixture A, banburying 6-20 minute to 135-155 DEG C,
Obtain mixture B；
Add ceramic powder 20-120 part, color masterbatch 5-15 part in said mixture B, banburying 15-40 minute, to 145-165 DEG C, is stopped
Only banburying, obtains ceramic polyolefin oversheath material, is cooled to room temperature, standby；
（2）Prepare flexible fire-proof cable,
Put band, copper strips tension adjustment, copper strips positioning fine cut, winding copper strips through core unwrapping wire, core tension adjustment, copper strips simultaneously
Send into the cable that longitudinal tubing machine obtains longitudinal tubing, the cable of longitudinal tubing is carried out docking longitudinal joint under inert gas shielding
Welding, eddy current inspection, cooling and lubricating, stretching sizing, embossing and cleaning dry up and obtain preliminary molding cable；By above-mentioned steps（1）
In the ceramic polyolefin oversheath material that obtains dry up with cleaning after cable together with through double screw extruder（25）Extrusion is outer to protect
Set（4）, through coding, adjust tension force and winding displacement, finally give flexible fire-proof cable.
2. flexible fire-proof cable according to claim 1 preparation method it is characterised in that：Described inert gas is argon
Gas, the pressure of described argon gas is 5-15Mpa；The electric current of described longitudinal seam welding is 40-190A.
3. flexible fire-proof cable according to claim 1 preparation method it is characterised in that：The pressure of described argon gas is
10Mpa；The electric current of described longitudinal seam welding is 90A.
4. flexible fire-proof cable according to claim 1 preparation method it is characterised in that：Described ethene-vinyl acetate
Ester copolymer is EVA260, the EVA blend that described compatilizer EVA is grafted for maleic anhydride, and described coupling agent A-172 is superelevation
Molecular weight silicone, described 1010 antioxidant are tetrapentaerythritol ester, and described methyl-silicone oil is dimethicone 201, described
Color masterbatch is that EVA primary colours are female.
5. the flexible fire-proof cable of the method preparation described in a kind of any one by claim 1-4, including three conductor thread cores
（1）, ground wire（3）, belting layer（5）And inner sheath（6）It is characterised in that：Also include oversheath（4）, described oversheath（4）For pottery
Porcelain polyolefin oversheath, described ceramic polyolefin oversheath thickness is 3.0-5.0mm；Described conductor thread core（1）With ground wire
（3）Periphery is provided with packed layer（2）；Described packed layer（2）Periphery cladding belting layer（5）；Described belting layer（5）Shield in outside cladding
Set（6）；Described inner sheath（6）The described oversheath of outside cladding（4）；Described three conductor thread cores（1）And ground wire（3）From the inside to the outside
It is equipped with conductor（8）, insulating barrier（7）, high temperature color separation band（9）And lapping layer（10）.
6. a kind of flexible fire-proof cable according to claim 5 it is characterised in that：Described high temperature color separation band（9）Prolong conductor
Core（1）Or ground wire（3）Length direction is spaced apart.
7. a kind of flexible fire-proof cable according to claim 5 it is characterised in that：Described flexible fire-proof cable is fourth class core
Cable；Described belting layer（5）For synthetic mica belt, described inner sheath（6）For argon arc welding embossing copper sheath, described packed layer
（2）Fill silk for inorfil；Described conductor（8）For bare copper wire or coating copper wire, described insulating barrier（7）For silicon rubber composite band
Insulating barrier, described lapping layer（10）For gold mica tape lapping layer.
8. a kind of flexible fire-proof cable according to claim 5 it is characterised in that：Described insulating barrier（7）Thickness is 0.4-
2.0mm；Described lapping layer（10）Overlapping wrapped 3 layers, thickness is 0.4-0.6mm, and Duplication is 40%-55%；Described belting layer（5）
Duplication is 40%-55%；Described inner sheath（6）Thickness is 0.4-1.2mm.
9. a kind of flexible fire-proof cable according to claim 5 it is characterised in that：Described insulating barrier（7）Thickness is
1.2mm；Described lapping layer（10）Thickness is 0.5mm, and Duplication is 50%；Described belting layer（5）Duplication is 50%；Described interior shield
Set（6）Thickness is 0.8mm.
10. a kind of flexible fire-proof cable according to claim 5 it is characterised in that：Described ceramic polyolefin oversheath
Thickness is 4.0mm.
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| CN108682517A (en) * | 2018-04-26 | 2018-10-19 | 沈阳伊思特机器人自动化科技有限公司 | A kind of fireproof cable process units |
| CN110767366A (en) * | 2019-11-18 | 2020-02-07 | 安徽省飞翔特种电缆有限公司 | Special cable for coke oven |
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| US20050014875A1 (en) * | 2003-07-14 | 2005-01-20 | Clariant Gmbh | Flame retardant formulation |
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| CN110767366A (en) * | 2019-11-18 | 2020-02-07 | 安徽省飞翔特种电缆有限公司 | Special cable for coke oven |
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| CN106409396B (en) | 2017-10-31 |
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