CN110580981A - Wear-resistant flame-retardant cable and preparation method thereof - Google Patents
Wear-resistant flame-retardant cable and preparation method thereof Download PDFInfo
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- CN110580981A CN110580981A CN201910875451.2A CN201910875451A CN110580981A CN 110580981 A CN110580981 A CN 110580981A CN 201910875451 A CN201910875451 A CN 201910875451A CN 110580981 A CN110580981 A CN 110580981A
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- cable
- layer
- flame
- wear
- resistant
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- 239000003063 flame retardant Substances 0.000 title claims abstract description 122
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 title claims abstract description 109
- 238000002360 preparation method Methods 0.000 title claims abstract description 30
- 239000000203 mixture Substances 0.000 claims abstract description 68
- 229920001971 elastomer Polymers 0.000 claims abstract description 58
- -1 polyethylene Polymers 0.000 claims abstract description 41
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical group [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 31
- 229910000838 Al alloy Inorganic materials 0.000 claims abstract description 24
- 239000000463 material Substances 0.000 claims abstract description 14
- 239000011248 coating agent Substances 0.000 claims abstract description 12
- 238000000576 coating method Methods 0.000 claims abstract description 12
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims abstract description 12
- 239000004810 polytetrafluoroethylene Substances 0.000 claims abstract description 12
- 239000004698 Polyethylene Substances 0.000 claims abstract description 11
- 229920000573 polyethylene Polymers 0.000 claims abstract description 11
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 35
- 239000004917 carbon fiber Substances 0.000 claims description 35
- 239000011265 semifinished product Substances 0.000 claims description 35
- 239000003795 chemical substances by application Substances 0.000 claims description 31
- KAESVJOAVNADME-UHFFFAOYSA-N Pyrrole Chemical compound C=1C=CNC=1 KAESVJOAVNADME-UHFFFAOYSA-N 0.000 claims description 24
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical class C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 22
- 238000002156 mixing Methods 0.000 claims description 22
- 239000006229 carbon black Substances 0.000 claims description 20
- 239000000047 product Substances 0.000 claims description 20
- 238000001816 cooling Methods 0.000 claims description 15
- 229920002943 EPDM rubber Polymers 0.000 claims description 12
- ADCOVFLJGNWWNZ-UHFFFAOYSA-N antimony trioxide Chemical group O=[Sb]O[Sb]=O ADCOVFLJGNWWNZ-UHFFFAOYSA-N 0.000 claims description 12
- 239000006087 Silane Coupling Agent Substances 0.000 claims description 11
- 229910052802 copper Inorganic materials 0.000 claims description 11
- 239000010949 copper Substances 0.000 claims description 11
- 239000004014 plasticizer Substances 0.000 claims description 11
- 229920000181 Ethylene propylene rubber Polymers 0.000 claims description 10
- 229920000459 Nitrile rubber Polymers 0.000 claims description 10
- 235000021355 Stearic acid Nutrition 0.000 claims description 10
- 238000000137 annealing Methods 0.000 claims description 10
- 230000003712 anti-aging effect Effects 0.000 claims description 10
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 10
- CJZGTCYPCWQAJB-UHFFFAOYSA-L calcium stearate Chemical compound [Ca+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O CJZGTCYPCWQAJB-UHFFFAOYSA-L 0.000 claims description 10
- 239000008116 calcium stearate Substances 0.000 claims description 10
- 235000013539 calcium stearate Nutrition 0.000 claims description 10
- 238000007765 extrusion coating Methods 0.000 claims description 10
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 claims description 10
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 claims description 10
- 239000001301 oxygen Substances 0.000 claims description 10
- 229910052760 oxygen Inorganic materials 0.000 claims description 10
- 239000012188 paraffin wax Substances 0.000 claims description 10
- 239000008117 stearic acid Substances 0.000 claims description 10
- 239000004927 clay Substances 0.000 claims description 8
- 239000002994 raw material Substances 0.000 claims description 7
- 150000001412 amines Chemical class 0.000 claims description 6
- WXZMFSXDPGVJKK-UHFFFAOYSA-N pentaerythritol Chemical compound OCC(CO)(CO)CO WXZMFSXDPGVJKK-UHFFFAOYSA-N 0.000 claims description 6
- 229920000137 polyphosphoric acid Polymers 0.000 claims description 6
- 150000001721 carbon Chemical class 0.000 claims description 5
- 238000004140 cleaning Methods 0.000 claims description 5
- 230000008878 coupling Effects 0.000 claims description 5
- 238000010168 coupling process Methods 0.000 claims description 5
- 238000005859 coupling reaction Methods 0.000 claims description 5
- 239000004205 dimethyl polysiloxane Substances 0.000 claims description 5
- 238000001035 drying Methods 0.000 claims description 5
- 238000001125 extrusion Methods 0.000 claims description 5
- 239000007789 gas Substances 0.000 claims description 5
- 238000003801 milling Methods 0.000 claims description 5
- 238000009832 plasma treatment Methods 0.000 claims description 5
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 claims description 5
- BIKXLKXABVUSMH-UHFFFAOYSA-N trizinc;diborate Chemical compound [Zn+2].[Zn+2].[Zn+2].[O-]B([O-])[O-].[O-]B([O-])[O-] BIKXLKXABVUSMH-UHFFFAOYSA-N 0.000 claims description 5
- 238000005406 washing Methods 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 238000005491 wire drawing Methods 0.000 claims description 5
- 229910021578 Iron(III) chloride Inorganic materials 0.000 claims description 4
- 239000007864 aqueous solution Substances 0.000 claims description 4
- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 4
- 150000001875 compounds Chemical class 0.000 claims description 3
- 238000003825 pressing Methods 0.000 claims description 2
- 238000005299 abrasion Methods 0.000 claims 8
- 239000010410 layer Substances 0.000 abstract description 112
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 238000005457 optimization Methods 0.000 abstract description 6
- 239000002346 layers by function Substances 0.000 abstract description 4
- 230000006872 improvement Effects 0.000 abstract description 3
- 238000009413 insulation Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 230000017105 transposition Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 206010000369 Accident Diseases 0.000 description 1
- YUWBVKYVJWNVLE-UHFFFAOYSA-N [N].[P] Chemical compound [N].[P] YUWBVKYVJWNVLE-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- FBAFATDZDUQKNH-UHFFFAOYSA-M iron chloride Chemical compound [Cl-].[Fe] FBAFATDZDUQKNH-UHFFFAOYSA-M 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
- C08K13/06—Pretreated ingredients and ingredients covered by the main groups C08K3/00 - C08K7/00
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K7/00—Use of ingredients characterised by shape
- C08K7/02—Fibres or whiskers
- C08K7/04—Fibres or whiskers inorganic
- C08K7/06—Elements
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K9/00—Use of pretreated ingredients
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K9/00—Use of pretreated ingredients
- C08K9/08—Ingredients agglomerated by treatment with a binding agent
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L9/00—Compositions of homopolymers or copolymers of conjugated diene hydrocarbons
- C08L9/02—Copolymers with acrylonitrile
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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
- H01B13/0006—Apparatus or processes specially adapted for manufacturing conductors or cables for reducing the size of 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
- H01B13/0016—Apparatus or processes specially adapted for manufacturing conductors or cables for heat treatment
-
- 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
- H01B13/02—Stranding-up
-
- 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
- H01B13/142—Insulating conductors or cables by extrusion of cellular material
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- 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
- H01B13/148—Selection of the insulating material therefor
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- 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
-
- 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
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- 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
- H01B7/0233—Cables with a predominant gas dielectric
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- H—ELECTRICITY
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- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/02—Disposition of insulation
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- 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
- H01B7/187—Sheaths comprising extruded non-metallic layers
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- 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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- 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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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
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- C08K2003/321—Phosphates
- C08K2003/322—Ammonium phosphate
- C08K2003/323—Ammonium polyphosphate
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/38—Boron-containing compounds
- C08K2003/387—Borates
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/02—Flame or fire retardant/resistant
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
Abstract
the invention discloses a wear-resistant flame-retardant cable and a preparation method thereof.A conductive wire core is taken as a center, and a shielding layer, an insulating layer, a flame-retardant layer, an aluminum alloy belt armor layer and a wear-resistant sheath layer are sequentially coated from inside to outside; the cable comprises a conductive wire core, a shielding layer, an insulating layer, a flame-retardant layer, a wear-resistant sheath layer and a coating machine, wherein the conductive wire core is a copper wire core, the shielding layer is a polyethylene shielding layer, the insulating layer is foamed polytetrafluoroethylene, the flame-retardant layer is a flame retardant compounded rubber mixture, the wear-resistant sheath layer is a rubber wear-resistant cable material mixture, and each functional layer is extruded by the coating machine to form a cable finished product finally. The invention realizes the performance improvement of the cable by the combination of the structural optimization, the material optimization and the production process optimization of the arrangement sequence of various functional layers, particularly the obvious enhancement of the flame retardance and the wear resistance of the cable, expands the application range of the cable, has simple and direct preparation process, can be suitable for the mechanized production of a production line, and has ideal use value.
Description
Technical Field
The invention belongs to the technical field of cables, and particularly relates to a wear-resistant flame-retardant cable and a preparation method thereof.
background
A cable is a wire product used for transmitting electric energy, information and electromagnetic energy conversion. The cable is one of products which must be matched when an electric product is used, is used as a main carrier of electric power transmission, plays roles of transmitting electric power, transmitting information and realizing electromagnetic energy conversion in the electric product, is widely applied to aspects of electric equipment, lighting circuits, household appliances and the like, is accelerated in the reconstruction of urban power grids along with the rapid development of Chinese economy, the consumption of cables is increased at a speed of nearly 25% every year, and a huge market stimulates various cable enterprises and the cable production lines built and established are gradually increased. Meanwhile, the urban power consumption is increased sharply, the demand of cable products is increased greatly, and higher technical requirements are provided for cable production enterprises.
In the prior art, along with the continuous improvement of the living standard of people, the electricity consumption of the society is greatly increased, the consumption of various electrical equipment is sharply increased, and the electrical fire accidents are also sharply increased. According to statistics, the number of fires in China is about ten million, and the direct property loss is ten billion yuan. The fire caused by short circuit of wire and cable, overload, failure of electric equipment, lamp and electric reason accounts for 30% of the total number, and the occurrence frequency and loss of electric fire are at the head of all kinds of fire. In an electrical fire, the fire caused by the electric wire and cable is about half. Therefore, the quality of the cable directly affects the engineering quality, the stability of power and information transmission and the life and property safety of consumers, and the existing cable is generally simple in structure and single in performance, is more and more difficult to meet the requirements of various facilities, and needs to be improved urgently.
Disclosure of Invention
the invention aims to make up the defects of the prior art and provides a wear-resistant flame-retardant cable and a preparation method thereof.
in order to achieve the above object, the present invention provides the following technical solutions:
a wear-resistant flame-retardant cable is characterized in that a shielding layer, an insulating layer, a flame-retardant layer, an aluminum alloy belt armor layer and a wear-resistant sheath layer are sequentially coated from inside to outside by taking a conductive wire core as a center;
the cable comprises a conductive wire core, a shielding layer, an insulating layer, a flame retardant layer, a wear-resistant sheath layer and a flame retardant layer, wherein the conductive wire core is a copper wire core, the shielding layer is a polyethylene shielding layer, the insulating layer is foamed polytetrafluoroethylene, the flame retardant layer is a flame retardant compounded rubber mixture, and the wear-resistant sheath layer is a rubber wear-resistant cable material mixture.
Further, the copper wire core is an annealed stranded soft copper wire core, and the preparation method comprises the following steps: carrying out wire drawing and annealing treatment on a copper wire raw material through a drawing machine and a continuous annealing machine to obtain a annealed copper wire with the diameter of 0.1-0.3mm, and then pressing and twisting a plurality of annealed copper wires through a stranding machine according to the wire core requirement to finally obtain a conductive wire core.
further, the flame retardant compound rubber mixture comprises the following components: 40-50 parts of nitrile rubber, 34-36 parts of ethylene propylene rubber, 15-20 parts of mixed flame retardant, 6-8 parts of flame retardant synergist, 10-15 parts of calcined clay, 4-5 parts of paraffin, 0.5-1 part of stearic acid, 1-2 parts of vulcanizing agent, 2-4 parts of carbon black and 1-2 parts of accelerator.
further, the preparation method of the flame retardant compound rubber mixture comprises the following steps:
(1) mixing and plasticizing nitrile rubber, ethylene propylene rubber, mixed flame retardant, flame retardant synergist, calcined clay, paraffin, stearic acid, carbon black and accelerant into a mixture through an internal mixer;
(2) Feeding the mixture into a vulcanizing machine, adding a vulcanizing agent, and vulcanizing to obtain a flame retardant compound rubber mixture;
Further, the mixed flame retardant is prepared from antimony trioxide, polyphosphoric acid amine and pentaerythritol according to the mass ratio of (12-15): (10-14): (3-6), and the flame-retardant synergist is prepared by mixing polydimethylsiloxane and zinc borate according to the mass ratio of (2-3): (3-5) mixing.
further, the rubber wear-resistant cable material mixture comprises the following components: 70-90 parts of ethylene propylene diene monomer, 3-5 parts of surface modified carbon fiber, 0.5-1.5 parts of silane coupling agent, 3-4 parts of calcium stearate, 12-16 parts of plasticizer, 5-8 parts of carbon black, 1-1.5 parts of vulcanizing agent and 0.5-1 part of anti-aging agent.
further, the preparation method of the surface modified carbon fiber comprises the following steps: cleaning and drying carbon fibers, treating the carbon fibers by oxygen plasma generated by capacitive coupling radio frequency glow discharge, immersing the carbon fibers in 2mol/L ferric chloride aqueous solution, dropwise adding pyrrole until the pyrrole is completely polymerized, taking out the carbon fibers, and washing the carbon fibers by using clear water to obtain surface modified carbon fibers for later use, wherein the discharge power in the oxygen plasma treatment is controlled to be 65-75W, and the gas pressure is controlled to be 22-26 Pa.
Further, the preparation method of the rubber wear-resistant cable material mixture comprises the following steps:
(1) Mixing ethylene propylene diene monomer, surface modified carbon fiber, a silane coupling agent, calcium stearate, a plasticizer, carbon black, a vulcanizing agent and an anti-aging agent, and feeding the mixture into an internal mixer for mixing to obtain a mixed material;
(2) And (3) feeding the mixed materials into an open mill for milling and passing through to obtain the rubber wear-resistant cable material mixture.
Further, the preparation method of the wear-resistant flame-retardant cable comprises the following steps:
(1) Extruding and wrapping the polyethylene shielding layer on the conductive wire core through a wrapping machine to form a shielding layer, and cooling to obtain a semi-finished cable A;
(2) extruding foamed polytetrafluoroethylene on the outer surface of the cable semi-finished product A to form an insulating layer, and cooling to obtain a cable semi-finished product B;
(3) Carrying out extrusion coating treatment on the cable semi-finished product B through a coating machine, and carrying out extrusion coating on the flame retardant compounded rubber mixture outside an insulating layer of the cable semi-finished product A to obtain a cable semi-finished product C with a flame retardant layer;
(4) preparing an aluminum alloy strip armor layer on the outer surface of the cable semi-finished product C by wrapping an aluminum alloy strip, wherein the wrapping thickness is controlled to be 0.3-0.5mm, and obtaining a cable semi-finished product D;
(5) and (3) carrying out extrusion processing on the semi-finished cable product D through a coating machine, extruding the rubber wear-resistant cable material mixture outside an aluminum alloy belt armor layer of the semi-finished cable product D to form a wear-resistant sheath layer, and cooling to obtain a wear-resistant flame-retardant cable finished product.
the invention has the advantages that:
according to the invention, through the structural optimization, the material optimization and the production process optimization of the arrangement sequence of various functional layers, the performance of the cable is improved by combining the functional layers, particularly the flame retardance and the wear resistance of the cable are remarkably enhanced, and the application range of the cable is expanded; the foamed polytetrafluoroethylene used in the method is used as a cable insulation layer, and the foamed insulation structure of the cable insulation layer can enable the electric field distribution of the cable insulation layer to tend to be uniform, so that the insulation voltage resistance is greatly improved, the distributed inductance is reduced, and the low impedance of the cable is realized; in the flame retardant aspect, the flame retardant is compounded with the rubber mixture, wherein the effective flame retardant component is the mixed flame retardant of antimony trioxide, polyphosphoric acid amine and pentaerythritol, the flame retardant property can be enhanced through the nitrogen-phosphorus synergistic flame retardant effect, meanwhile, the flame retardant can play a better smoke suppression and non-toxic effect in the flame retardant process, the ideal flame retardant effect is achieved with a lower filling amount, the cost is saved, meanwhile, the flame retardant synergist is added for use, the dosage of the flame retardant raw materials is further controlled, the physical property is optimized, and the flame retardant effect is improved; the aluminum alloy strip armor layer can provide excellent fire blocking performance, and the light weight of the aluminum alloy strip armor layer greatly reduces the total weight of the cable, so that the aluminum alloy strip armor layer is convenient to construct and use; the outermost wear-resistant sheath adopts a rubber wear-resistant cable material mixture which takes ethylene propylene diene monomer as a main raw material, by matching and using the surface modified carbon fiber, the silane coupling agent, the vulcanizing agent, the plasticizer and the like, the excellent properties of the ethylene propylene diene rubber are kept, the performance of the compound material can be further improved, wherein the carbon fiber of the surface modified carbon fiber is etched by plasma, the number of surface carboxyl is increased, and then hydrogen bonds are formed with pyrrole, which is beneficial to the effective transmission of stress on an interface, meanwhile, the surface roughness of the carbon fiber is increased by the deposited pyrrole bulges, the mechanical riveting action between the fiber and the rubber matrix is increased, the interface bonding strength is improved by the combined action of the carbon fiber and the rubber matrix, the carbon fiber is firmly combined in the rubber, and the rubber material has partial excellent performance of the carbon fiber, therefore, the mixture has excellent wear resistance and ideal using effect as the outer sheath of the cable. Meanwhile, the cable preparation process is overall simple and convenient, can be suitable for assembly line mechanized production, and has ideal use value.
Detailed Description
The technical scheme of the invention is further explained by combining the specific examples as follows:
Example 1
a wear-resistant flame-retardant cable is characterized in that a shielding layer, an insulating layer, a flame-retardant layer, an aluminum alloy belt armor layer and a wear-resistant sheath layer are sequentially coated from inside to outside by taking a conductive wire core as a center;
The cable comprises a conductive wire core, a shielding layer, an insulating layer, a flame retardant layer, a wear-resistant sheath layer and a flame retardant layer, wherein the conductive wire core is a copper wire core, the shielding layer is a polyethylene shielding layer, the insulating layer is foamed polytetrafluoroethylene, the flame retardant layer is a flame retardant compounded rubber mixture, and the wear-resistant sheath layer is a rubber wear-resistant cable material mixture.
The copper wire core is an annealed stranded soft copper wire core, and the preparation method comprises the following steps: carry out wire drawing annealing treatment with copper line raw materials through drawbench and continuous annealing machine, obtain the annealed copper line that the diameter is 0.1mm, compress tightly the transposition through the stranding machine with many annealed copper lines according to the sinle silk demand again, obtain conductive core at last.
the flame retardant compound rubber mixture comprises the following components: 40 parts of nitrile rubber, 34 parts of ethylene propylene rubber, 15 parts of mixed flame retardant, 6 parts of flame retardant synergist, 10 parts of calcined argil, 4 parts of paraffin, 0.5 part of stearic acid, 1 part of vulcanizing agent, 2 parts of carbon black and 1 part of accelerator.
the preparation method of the flame retardant compound rubber mixture comprises the following steps:
(1) mixing and plasticizing nitrile rubber, ethylene propylene rubber, mixed flame retardant, flame retardant synergist, calcined clay, paraffin, stearic acid, carbon black and accelerant into a mixture through an internal mixer;
(2) Feeding the mixture into a vulcanizing machine, adding a vulcanizing agent, and vulcanizing to obtain a flame retardant compound rubber mixture;
Wherein the mixed flame retardant is antimony trioxide, polyphosphoric acid amine and pentaerythritol in a mass ratio of 12: 10: 3, and the flame-retardant synergist is polydimethylsiloxane and zinc borate according to the mass ratio of 2: 3, and mixing.
the rubber wear-resistant cable material mixture comprises the following components: 70 parts of ethylene propylene diene monomer, 3 parts of surface modified carbon fiber, 0.5 part of silane coupling agent, 3 parts of calcium stearate, 12 parts of plasticizer, 5 parts of carbon black, 1 part of vulcanizing agent and 0.5 part of anti-aging agent.
The preparation method of the surface modified carbon fiber comprises the following steps: cleaning and drying carbon fibers, treating the carbon fibers by oxygen plasma generated by capacitive coupling radio frequency glow discharge, immersing the carbon fibers in 2mol/L ferric chloride aqueous solution, dropwise adding pyrrole until the pyrrole is completely polymerized, taking out the carbon fibers, and washing the carbon fibers by using clear water to obtain surface modified carbon fibers for later use, wherein the discharge power in the oxygen plasma treatment is controlled to be 65W, and the gas pressure is controlled to be 22 Pa.
the preparation method of the rubber wear-resistant cable material mixture comprises the following steps:
(1) Mixing ethylene propylene diene monomer, surface modified carbon fiber, a silane coupling agent, calcium stearate, a plasticizer, carbon black, a vulcanizing agent and an anti-aging agent, and feeding the mixture into an internal mixer for mixing to obtain a mixed material;
(2) and (3) feeding the mixed materials into an open mill for milling and passing through to obtain the rubber wear-resistant cable material mixture.
The preparation method of the wear-resistant flame-retardant cable comprises the following steps:
(1) extruding and wrapping the polyethylene shielding layer on the conductive wire core through a wrapping machine to form a shielding layer, and cooling to obtain a semi-finished cable A;
(2) extruding foamed polytetrafluoroethylene on the outer surface of the cable semi-finished product A to form an insulating layer, and cooling to obtain a cable semi-finished product B;
(3) carrying out extrusion coating treatment on the cable semi-finished product B through a coating machine, and carrying out extrusion coating on the flame retardant compounded rubber mixture outside an insulating layer of the cable semi-finished product A to obtain a cable semi-finished product C with a flame retardant layer;
(4) preparing an aluminum alloy strip armor layer on the outer surface of the cable semi-finished product C by wrapping an aluminum alloy strip, wherein the wrapping thickness is controlled to be 0.3mm, and thus obtaining a cable semi-finished product D;
(5) And (3) carrying out extrusion processing on the semi-finished cable product D through a coating machine, extruding the rubber wear-resistant cable material mixture outside an aluminum alloy belt armor layer of the semi-finished cable product D to form a wear-resistant sheath layer, and cooling to obtain a wear-resistant flame-retardant cable finished product.
example 2
A wear-resistant flame-retardant cable is characterized in that a shielding layer, an insulating layer, a flame-retardant layer, an aluminum alloy belt armor layer and a wear-resistant sheath layer are sequentially coated from inside to outside by taking a conductive wire core as a center;
the cable comprises a conductive wire core, a shielding layer, an insulating layer, a flame retardant layer, a wear-resistant sheath layer and a flame retardant layer, wherein the conductive wire core is a copper wire core, the shielding layer is a polyethylene shielding layer, the insulating layer is foamed polytetrafluoroethylene, the flame retardant layer is a flame retardant compounded rubber mixture, and the wear-resistant sheath layer is a rubber wear-resistant cable material mixture.
The copper wire core is an annealed stranded soft copper wire core, and the preparation method comprises the following steps: carry out wire drawing annealing treatment with copper line raw materials through drawbench and continuous annealing machine, obtain the annealed copper line that the diameter is 0.3mm, compress tightly the transposition through the stranding machine with many annealed copper lines according to the sinle silk demand again, obtain conductive core at last.
The flame retardant compound rubber mixture comprises the following components: 50 parts of nitrile rubber, 36 parts of ethylene propylene rubber, 20 parts of mixed flame retardant, 8 parts of flame retardant synergist, 15 parts of calcined argil, 5 parts of paraffin, 1 part of stearic acid, 2 parts of vulcanizing agent, 4 parts of carbon black and 2 parts of accelerator.
the preparation method of the flame retardant compound rubber mixture comprises the following steps:
(1) Mixing and plasticizing nitrile rubber, ethylene propylene rubber, mixed flame retardant, flame retardant synergist, calcined clay, paraffin, stearic acid, carbon black and accelerant into a mixture through an internal mixer;
(2) Feeding the mixture into a vulcanizing machine, adding a vulcanizing agent, and vulcanizing to obtain a flame retardant compound rubber mixture;
wherein the mixed flame retardant is antimony trioxide, polyphosphoric acid amine and pentaerythritol in a mass ratio of 15: 14: 6, and the flame-retardant synergist is polydimethylsiloxane and zinc borate according to the mass ratio of 3: 5, mixing the components.
The rubber wear-resistant cable material mixture comprises the following components: 90 parts of ethylene propylene diene monomer, 5 parts of surface modified carbon fiber, 1.5 parts of silane coupling agent, 4 parts of calcium stearate, 16 parts of plasticizer, 8 parts of carbon black, 1.5 parts of vulcanizing agent and 1 part of anti-aging agent.
The preparation method of the surface modified carbon fiber comprises the following steps: cleaning and drying carbon fibers, treating the carbon fibers by oxygen plasma generated by capacitive coupling radio frequency glow discharge, immersing the carbon fibers in 2mol/L molten iron chloride solution, dropwise adding pyrrole until the pyrrole is completely polymerized, taking out the carbon fibers, and washing the carbon fibers by using clear water to obtain surface modified carbon fibers for later use, wherein the discharge power in the oxygen plasma treatment is controlled to be 75W, and the gas pressure is controlled to be 26 Pa.
the preparation method of the rubber wear-resistant cable material mixture comprises the following steps:
(1) Mixing ethylene propylene diene monomer, surface modified carbon fiber, a silane coupling agent, calcium stearate, a plasticizer, carbon black, a vulcanizing agent and an anti-aging agent, and feeding the mixture into an internal mixer for mixing to obtain a mixed material;
(2) and (3) feeding the mixed materials into an open mill for milling and passing through to obtain the rubber wear-resistant cable material mixture.
The preparation method of the wear-resistant flame-retardant cable comprises the following steps:
(1) extruding and wrapping the polyethylene shielding layer on the conductive wire core through a wrapping machine to form a shielding layer, and cooling to obtain a semi-finished cable A;
(2) extruding foamed polytetrafluoroethylene on the outer surface of the cable semi-finished product A to form an insulating layer, and cooling to obtain a cable semi-finished product B;
(3) carrying out extrusion coating treatment on the cable semi-finished product B through a coating machine, and carrying out extrusion coating on the flame retardant compounded rubber mixture outside an insulating layer of the cable semi-finished product A to obtain a cable semi-finished product C with a flame retardant layer;
(4) Preparing an aluminum alloy strip armor layer on the outer surface of the cable semi-finished product C by wrapping an aluminum alloy strip, wherein the wrapping thickness is controlled to be 0.5mm, and thus obtaining a cable semi-finished product D;
(5) and (3) carrying out extrusion processing on the semi-finished cable product D through a coating machine, extruding the rubber wear-resistant cable material mixture outside an aluminum alloy belt armor layer of the semi-finished cable product D to form a wear-resistant sheath layer, and cooling to obtain a wear-resistant flame-retardant cable finished product.
Example 3
A wear-resistant flame-retardant cable is characterized in that a shielding layer, an insulating layer, a flame-retardant layer, an aluminum alloy belt armor layer and a wear-resistant sheath layer are sequentially coated from inside to outside by taking a conductive wire core as a center;
the cable comprises a conductive wire core, a shielding layer, an insulating layer, a flame retardant layer, a wear-resistant sheath layer and a flame retardant layer, wherein the conductive wire core is a copper wire core, the shielding layer is a polyethylene shielding layer, the insulating layer is foamed polytetrafluoroethylene, the flame retardant layer is a flame retardant compounded rubber mixture, and the wear-resistant sheath layer is a rubber wear-resistant cable material mixture.
the copper wire core is an annealed stranded soft copper wire core, and the preparation method comprises the following steps: carry out wire drawing annealing treatment with copper line raw materials through drawbench and continuous annealing machine, obtain the annealed copper line that the diameter is 0.2mm, compress tightly the transposition through the stranding machine with many annealed copper lines according to the sinle silk demand again, obtain conductive core at last.
The flame retardant compound rubber mixture comprises the following components: 45 parts of nitrile rubber, 35 parts of ethylene propylene rubber, 17 parts of mixed flame retardant, 7 parts of flame retardant synergist, 13 parts of calcined clay, 5 parts of paraffin, 1 part of stearic acid, 1.5 parts of vulcanizing agent, 3 parts of carbon black and 1.5 parts of accelerator.
the preparation method of the flame retardant compound rubber mixture comprises the following steps:
(1) mixing and plasticizing nitrile rubber, ethylene propylene rubber, mixed flame retardant, flame retardant synergist, calcined clay, paraffin, stearic acid, carbon black and accelerant into a mixture through an internal mixer;
(2) Feeding the mixture into a vulcanizing machine, adding a vulcanizing agent, and vulcanizing to obtain a flame retardant compound rubber mixture;
wherein the mixed flame retardant is antimony trioxide, polyphosphoric acid amine and pentaerythritol in a mass ratio of 14: 12: 4, and the flame-retardant synergist is polydimethylsiloxane and zinc borate according to the mass ratio of 3: 4, and mixing.
The rubber wear-resistant cable material mixture comprises the following components: 80 parts of ethylene propylene diene monomer, 4 parts of surface modified carbon fiber, 1 part of silane coupling agent, 3.5 parts of calcium stearate, 14 parts of plasticizer, 6 parts of carbon black, 1.5 parts of vulcanizing agent and 1 part of anti-aging agent.
the preparation method of the surface modified carbon fiber comprises the following steps: cleaning and drying carbon fibers, treating the carbon fibers by oxygen plasma generated by capacitive coupling radio frequency glow discharge, immersing the carbon fibers in 2mol/L ferric chloride aqueous solution, dropwise adding pyrrole until the pyrrole is completely polymerized, taking out the carbon fibers, and washing the carbon fibers by using clear water to obtain surface modified carbon fibers for later use, wherein the discharge power in the oxygen plasma treatment is controlled to be 70W, and the gas pressure is controlled to be 25 Pa.
The preparation method of the rubber wear-resistant cable material mixture comprises the following steps:
(1) Mixing ethylene propylene diene monomer, surface modified carbon fiber, a silane coupling agent, calcium stearate, a plasticizer, carbon black, a vulcanizing agent and an anti-aging agent, and feeding the mixture into an internal mixer for mixing to obtain a mixed material;
(2) And (3) feeding the mixed materials into an open mill for milling and passing through to obtain the rubber wear-resistant cable material mixture.
The preparation method of the wear-resistant flame-retardant cable comprises the following steps:
(1) Extruding and wrapping the polyethylene shielding layer on the conductive wire core through a wrapping machine to form a shielding layer, and cooling to obtain a semi-finished cable A;
(2) extruding foamed polytetrafluoroethylene on the outer surface of the cable semi-finished product A to form an insulating layer, and cooling to obtain a cable semi-finished product B;
(3) Carrying out extrusion coating treatment on the cable semi-finished product B through a coating machine, and carrying out extrusion coating on the flame retardant compounded rubber mixture outside an insulating layer of the cable semi-finished product A to obtain a cable semi-finished product C with a flame retardant layer;
(4) Preparing an aluminum alloy strip armor layer on the outer surface of the cable semi-finished product C by wrapping an aluminum alloy strip, wherein the wrapping thickness is controlled to be 0.4mm, and thus obtaining a cable semi-finished product D;
(5) And (3) carrying out extrusion processing on the semi-finished cable product D through a coating machine, extruding the rubber wear-resistant cable material mixture outside an aluminum alloy belt armor layer of the semi-finished cable product D to form a wear-resistant sheath layer, and cooling to obtain a wear-resistant flame-retardant cable finished product.
the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. a wear-resistant flame-retardant cable is characterized in that a shielding layer, an insulating layer, a flame-retardant layer, an aluminum alloy belt armor layer and a wear-resistant sheath layer are sequentially coated and arranged from inside to outside by taking a conductive wire core as a center;
The cable comprises a conductive wire core, a shielding layer, an insulating layer, a flame retardant layer, a wear-resistant sheath layer and a flame retardant layer, wherein the conductive wire core is a copper wire core, the shielding layer is a polyethylene shielding layer, the insulating layer is foamed polytetrafluoroethylene, the flame retardant layer is a flame retardant compounded rubber mixture, and the wear-resistant sheath layer is a rubber wear-resistant cable material mixture.
2. the abrasion-resistant flame-retardant cable according to claim 1, wherein the copper wire core is an annealed stranded soft copper wire core, and the preparation method is as follows: carrying out wire drawing and annealing treatment on a copper wire raw material through a drawing machine and a continuous annealing machine to obtain a annealed copper wire with the diameter of 0.1-0.3mm, and then pressing and twisting a plurality of annealed copper wires through a stranding machine according to the wire core requirement to finally obtain a conductive wire core.
3. the abrasion-resistant flame-retardant cable according to claim 1, wherein the flame retardant compounded rubber compound comprises the following components: 40-50 parts of nitrile rubber, 34-36 parts of ethylene propylene rubber, 15-20 parts of mixed flame retardant, 6-8 parts of flame retardant synergist, 10-15 parts of calcined clay, 4-5 parts of paraffin, 0.5-1 part of stearic acid, 1-2 parts of vulcanizing agent, 2-4 parts of carbon black and 1-2 parts of accelerator.
4. The wear-resistant flame-retardant cable according to claim 3, wherein the preparation method of the flame retardant compounded rubber compound comprises the following steps:
(1) mixing and plasticizing nitrile rubber, ethylene propylene rubber, mixed flame retardant, flame retardant synergist, calcined clay, paraffin, stearic acid, carbon black and accelerant into a mixture through an internal mixer;
(2) Feeding the mixture into a vulcanizing machine, adding a vulcanizing agent, and vulcanizing to obtain a flame retardant compound rubber mixture;
wherein the mixed flame retardant is antimony trioxide, polyphosphoric acid amine and pentaerythritol in a mass ratio of (12-15): (10-14): (3-6), and the flame-retardant synergist is prepared by mixing polydimethylsiloxane and zinc borate according to the mass ratio of (2-3): (3-5) mixing.
5. The abrasion-resistant flame-retardant cable according to claim 1, wherein the rubber abrasion-resistant cable material mixture comprises the following components: 70-90 parts of ethylene propylene diene monomer, 3-5 parts of surface modified carbon fiber, 0.5-1.5 parts of silane coupling agent, 3-4 parts of calcium stearate, 12-16 parts of plasticizer, 5-8 parts of carbon black, 1-1.5 parts of vulcanizing agent and 0.5-1 part of anti-aging agent.
6. the abrasion-resistant flame-retardant cable according to claim 5, wherein the surface-modified carbon fiber is prepared by the following method: cleaning and drying carbon fibers, treating the carbon fibers by oxygen plasma generated by capacitive coupling radio frequency glow discharge, immersing the carbon fibers in 2mol/L ferric chloride aqueous solution, dropwise adding pyrrole until the pyrrole is completely polymerized, taking out the carbon fibers, and washing the carbon fibers by using clear water to obtain surface modified carbon fibers for later use, wherein the discharge power in the oxygen plasma treatment is controlled to be 65-75W, and the gas pressure is controlled to be 22-26 Pa.
7. The abrasion-resistant flame-retardant cable according to claim 5, wherein the preparation method of the rubber abrasion-resistant cable material mixture comprises the following steps:
(1) mixing ethylene propylene diene monomer, surface modified carbon fiber, a silane coupling agent, calcium stearate, a plasticizer, carbon black, a vulcanizing agent and an anti-aging agent, and feeding the mixture into an internal mixer for mixing to obtain a mixed material;
(2) and (3) feeding the mixed materials into an open mill for milling and passing through to obtain the rubber wear-resistant cable material mixture.
8. The method for preparing the abrasion-resistant flame-retardant cable according to any one of claims 1 to 7, comprising the steps of:
(1) extruding and wrapping the polyethylene shielding layer on the conductive wire core through a wrapping machine to form a shielding layer, and cooling to obtain a semi-finished cable A;
(2) Extruding foamed polytetrafluoroethylene on the outer surface of the cable semi-finished product A to form an insulating layer, and cooling to obtain a cable semi-finished product B;
(3) Carrying out extrusion coating treatment on the cable semi-finished product B through a coating machine, and carrying out extrusion coating on the flame retardant compounded rubber mixture outside an insulating layer of the cable semi-finished product A to obtain a cable semi-finished product C with a flame retardant layer;
(4) preparing an aluminum alloy strip armor layer on the outer surface of the cable semi-finished product C by wrapping an aluminum alloy strip, wherein the wrapping thickness is controlled to be 0.3-0.5mm, and obtaining a cable semi-finished product D;
(5) and (3) carrying out extrusion processing on the semi-finished cable product D through a coating machine, extruding the rubber wear-resistant cable material mixture outside an aluminum alloy belt armor layer of the semi-finished cable product D to form a wear-resistant sheath layer, and cooling to obtain a wear-resistant flame-retardant cable finished product.
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Denomination of invention: A wear-resistant and flame-retardant cable and its preparation method Granted publication date: 20210511 Pledgee: Tianchang Science and Technology Financing Guarantee Co.,Ltd. Pledgor: ANHUI CABLE Co.,Ltd. Registration number: Y2024980009307 |