CN112164490A - High-strength pull-resistant cable and preparation method thereof - Google Patents
High-strength pull-resistant cable and preparation method thereof Download PDFInfo
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- CN112164490A CN112164490A CN202011027199.9A CN202011027199A CN112164490A CN 112164490 A CN112164490 A CN 112164490A CN 202011027199 A CN202011027199 A CN 202011027199A CN 112164490 A CN112164490 A CN 112164490A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
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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
- H01B13/227—Pretreatment
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
- H01B13/22—Sheathing; Armouring; Screening; Applying other protective layers
- H01B13/24—Sheathing; Armouring; Screening; Applying other protective layers by extrusion
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
- H01B13/22—Sheathing; Armouring; Screening; Applying other protective layers
- H01B13/26—Sheathing; Armouring; Screening; Applying other protective layers by winding, braiding or longitudinal lapping
- H01B13/2606—Sheathing; Armouring; Screening; Applying other protective layers by winding, braiding or longitudinal lapping by braiding
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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
- H01B3/28—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances natural or synthetic rubbers
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
- H01B7/1875—Multi-layer sheaths
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Ropes Or Cables (AREA)
Abstract
The invention discloses a high-strength pull-resistant cable and a preparation method thereof, belongs to the technical field of cables, and mainly solves the problems that the outer layer of the existing cable is low in strength and serious in abrasion and is easy to break off an inner conductor core after being repeatedly bent and pulled for multiple times, and a wear-resistant layer (1), a first tensile layer (2), a woven layer (3), a second tensile layer (4), an insulating layer (5) and a conductor core (6) are sequentially arranged from the outermost layer to the innermost layer of the cable; the wear-resistant layer (1) is composed of the following raw materials in parts by weight: 28-32 parts of butyl rubber, 20-25 parts of ethylene propylene diene monomer, 15-18 parts of chlorinated polyethylene, 8-12 parts of aluminum hydroxide, 6-10 parts of zinc oxide, 10-12 parts of white carbon black, 5-8 parts of silicon carbide and 2-3 parts of an anti-aging agent. The wear-resistant layer has high strength and excellent wear resistance, and the braided layer can offset and buffer external bending force and curling force and prevent the conductor core from being broken due to repeated bending force.
Description
Technical Field
The invention relates to the technical field of cables, in particular to a high-strength and pulling-resistant cable and a preparation method thereof.
Background
With the continuous development of economic society and the diversification of the use scenes of power cables, such as power grids on urban pavements and underground power grids, power supply lines in various enterprises and the like, higher requirements are put forward on the performance of the cables, particularly, the cables erected outdoors can be subjected to sunshine exposure, wind, rain and frost and snow coverage, are easy to age and damage and have potential hazards, and the cables can be bent and curled in the production, storage and construction erecting processes, and higher requirements are put forward on the bending resistance and the curling resistance of the cables. Therefore, it is desirable to design a high strength pull-resistant cable and a method for making the same.
Disclosure of Invention
The invention aims to provide a high-strength and pulling-resistant cable and a preparation method thereof, wherein the cable is high in strength, can withstand exposure for a long time, has good pulling-resistant performance, can be bent and pulled at will, is convenient to prepare and can be popularized.
The invention provides a high-strength and pulling-resistant cable, which is characterized in that a wear-resistant layer, a first tensile layer, a braided layer, a second tensile layer, an insulating layer and a conductor core are sequentially arranged from the outermost layer to the innermost layer of the cable;
the wear-resistant layer is composed of the following raw materials in parts by weight: 28-32 parts of butyl rubber, 20-25 parts of ethylene propylene diene monomer, 15-18 parts of chlorinated polyethylene, 8-12 parts of aluminum hydroxide, 6-10 parts of zinc oxide, 10-12 parts of white carbon black, 5-8 parts of silicon carbide and 2-3 parts of an anti-aging agent;
the first tensile layer and the second tensile layer are respectively composed of the following raw materials in parts by weight: 22-25 parts of styrene butadiene rubber, 16-20 parts of epoxy resin, 8-10 parts of aerogel, 5-8 parts of zinc stearate, 4-6 parts of sulfur and 2-4 parts of reinforcing agent;
the woven layer is formed by weaving a plurality of strips;
the insulating layer is composed of the following raw materials in parts by weight: 20-22 parts of organic silicon rubber, 15-18 parts of polypropylene, 10-12 parts of polyamide resin, 6-8 parts of epoxidized soybean oil, 3-6 parts of antimony trioxide, 2-4 parts of glass fiber and 1-2 parts of a cross-linking agent.
In a preferred embodiment, the wear-resistant layer is composed of the following raw materials in parts by weight: 30 parts of butyl rubber, 23 parts of ethylene propylene diene monomer, 16 parts of fluorinated polyethylene, 10 parts of aluminum hydroxide, 8 parts of zinc oxide, 11 parts of white carbon black, 6 parts of silicon carbide and 2 parts of an anti-aging agent;
the first tensile layer and the second tensile layer are respectively composed of the following raw materials in parts by weight: 23 parts of styrene butadiene rubber, 18 parts of epoxy resin, 9 parts of aerogel, 6 parts of zinc stearate, 5 parts of sulfur and 3 parts of reinforcing agent;
the insulating layer is composed of the following raw materials in parts by weight: 21 parts of organic silicon rubber, 16 parts of polypropylene, 11 parts of polyamide resin, 7 parts of epoxidized soybean oil, 4 parts of antimony trioxide, 3 parts of glass fiber and 1 part of crosslinking agent.
In a preferred embodiment, the strip is rectangular, has a width of 0.5-1 cm, and is made of nylon and/or rubber.
The preparation method of the high-strength pull-resistant cable comprises the following steps:
s1, putting the butyl rubber, the ethylene propylene diene monomer, the chlorinated polyethylene, the aluminum hydroxide, the zinc oxide, the white carbon black, the silicon carbide and the anti-aging agent into a kneading machine for mixing and milling to obtain a wear-resistant layer milling raw material;
s2, putting the wear-resistant layer mixed raw material into a granulator for granulation to obtain wear-resistant layer granular raw material with uniform granules;
s3, putting the wear-resistant layer particle raw material into an extruder for extrusion to obtain a wear-resistant layer strip material;
s4, putting the styrene butadiene rubber, the epoxy resin, the aerogel, the zinc stearate, the sulfur and the reinforcing agent into a kneader for mixing and mixing to obtain a tensile layer mixing raw material;
s5, putting the tensile layer mixing raw material into a granulator for granulation to obtain a tensile layer granular raw material;
s6, putting the raw material of the tensile layer particles into an extruder to be extruded to obtain a tensile layer strip material;
s7, weaving the strips through a weaving machine to obtain weaving layer strips;
s8, putting the organic silicon rubber, the polypropylene, the polyamide resin, the epoxidized soybean oil, the antimony trioxide, the glass fiber and the cross-linking agent into a kneader for mixing and milling to obtain an insulating layer milling raw material;
s9, putting the insulating layer mixing raw material into a granulator for granulation to obtain an insulating layer granular raw material;
s10, putting the insulating layer particle raw material into an extruder for extrusion to obtain an insulating layer strip material;
s11, coating the insulating layer strip material on the conductor core through a coating machine to obtain an insulating layer, coating the tensile layer strip material on the insulating layer to obtain a second tensile layer, coating the woven layer strip material on the second tensile layer to obtain a woven layer, coating the tensile layer strip material on the woven layer to obtain a first tensile layer, coating the wear layer strip material on the first tensile layer to obtain a wear-resistant layer, and obtaining the high-strength pull-resistant cable.
The invention has the technical effects and advantages that:
white carbon black and silicon carbide can obviously increase the wear resistance of butyl rubber and ethylene propylene diene monomer rubber, greatly improve the strength and hardness of the wear-resistant layer, enable the whole cable to be used outdoors for a long time, greatly prolong the service life, enable the weaving layer to have elasticity and good stretch-resistant performance, and can effectively offset the bending force and the curling force outside the cable by cooperating with the first tensile layer and the second tensile layer.
Drawings
FIG. 1 is a schematic cross-sectional view of a cable;
fig. 2 is a schematic elevation view of the interweaving of the strips.
Description of reference numerals: 1. a wear layer; 2. a first tensile layer; 3. weaving layer; 31. a strip; 4. a second tensile layer; 5. an insulating layer; 6. a conductor core.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments. The embodiments of the present invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.
A high-strength pull-resistant cable is shown in figures 1-2, and a wear-resistant layer 1, a first tensile layer 2, a braided layer 3, a second tensile layer 4, an insulating layer 5 and a conductor core 6 are sequentially arranged from the outermost layer to the innermost layer of the cable;
the wear-resistant layer 1 is composed of the following raw materials in parts by weight: 30 parts of butyl rubber, 23 parts of ethylene propylene diene monomer, 16 parts of fluorinated polyethylene, 10 parts of aluminum hydroxide, 8 parts of zinc oxide, 11 parts of white carbon black, 6 parts of silicon carbide and 2 parts of an anti-aging agent;
the first tensile layer 2 and the second tensile layer 4 are respectively composed of the following raw materials in parts by weight: 23 parts of styrene butadiene rubber, 18 parts of epoxy resin, 9 parts of aerogel, 6 parts of zinc stearate, 5 parts of sulfur and 3 parts of reinforcing agent;
the insulating layer 5 is composed of the following raw materials in parts by weight: 21 parts of organic silicon rubber, 16 parts of polypropylene, 11 parts of polyamide resin, 7 parts of epoxidized soybean oil, 4 parts of antimony trioxide, 3 parts of glass fiber and 1 part of crosslinking agent.
The white carbon black and the silicon carbide have excellent wear resistance, and can be uniformly distributed in the butyl rubber and the ethylene propylene diene monomer after being fully mixed with the butyl rubber and the ethylene propylene diene monomer, so that the strength of the wear-resistant layer 1 is greatly improved, the strength of the whole cable is better, the wear resistance and the high temperature resistance are better, and the service life of the cable is longer.
The strip 31 is rectangular, has a width of 0.5-1 cm, and is made of nylon and/or rubber.
Nylon and rubber have certain elasticity, and strip 31 is woven each other back, has good stretch-proofing performance, cooperates with first tensile layer 2 and second tensile layer 4, can offset, cushion the outside bending force of cable, curls the power, when buckling, bending whole cable, bending force, curls the power dispersion and disappear in whole weaving layer 3, avoids inside conductor core 6 to break because of repeated bending.
The preparation method of the high-strength pull-resistant cable comprises the following steps:
s1, putting butyl rubber, ethylene propylene diene monomer, chlorinated polyethylene, aluminum hydroxide, zinc oxide, white carbon black, silicon carbide and an anti-aging agent into a kneading machine for mixing and milling to obtain a wear-resistant layer milling raw material;
s2, putting the wear-resistant layer mixed raw material into a granulator for granulation to obtain wear-resistant layer granular raw material with uniform granules;
s3, putting the wear-resistant layer particle raw material into an extruder to be extruded to obtain a wear-resistant layer strip material;
s4, putting the styrene butadiene rubber, the epoxy resin, the aerogel, the zinc stearate, the sulfur and the reinforcing agent into a kneading machine for mixing and milling to obtain a tensile layer milling raw material;
s5, putting the mixed raw material of the tensile layer into a granulator for granulation to obtain a granular raw material of the tensile layer;
s6, putting the raw material of the tensile layer particles into an extruder to be extruded to obtain a tensile layer strip material;
s7, weaving the strip 31 through a weaving machine to obtain a woven layer strip material;
s8, putting the organic silicon rubber, the polypropylene, the polyamide resin, the epoxidized soybean oil, the antimony trioxide, the glass fiber and the cross-linking agent into a kneader for mixing and milling to obtain an insulating layer milling raw material;
s9, putting the mixed raw material of the insulating layer into a granulator for granulation to obtain a granular raw material of the insulating layer;
s10, putting the insulating layer particle raw material into an extruder to be extruded to obtain an insulating layer strip material;
s11, the insulating layer strip is coated on the conductor core 6 through a coating machine to obtain the insulating layer 5, the tensile layer strip is coated on the insulating layer 5 to obtain the second tensile layer 4, the second tensile layer 4 is coated with the braided layer strip to obtain the braided layer 3, the braided layer 3 is coated with the tensile layer strip to obtain the first tensile layer 2, the first tensile layer 2 is coated with the wear-resistant layer strip to obtain the wear-resistant layer 1, and the high-strength pull-resistant cable is obtained.
The manufacturing method has the advantages of common equipment, simple process flow and large-scale popularization and application.
It is to be understood that the described embodiments are merely a few embodiments of the invention, and not all embodiments. All other embodiments, which can be derived by one of ordinary skill in the art and related arts based on the embodiments of the present invention without any creative effort, shall fall within the protection scope of the present invention. Structures, devices, and methods of operation not specifically described or illustrated herein are generally practiced in the art without specific recitation or limitation.
Claims (4)
1. A high-strength pull-resistant cable is characterized in that a wear-resistant layer (1), a first tensile layer (2), a braided layer (3), a second tensile layer (4), an insulating layer (5) and a conductor core (6) are sequentially arranged from the outermost layer to the innermost layer of the cable;
the wear-resistant layer (1) is composed of the following raw materials in parts by weight: 28-32 parts of butyl rubber, 20-25 parts of ethylene propylene diene monomer, 15-18 parts of chlorinated polyethylene, 8-12 parts of aluminum hydroxide, 6-10 parts of zinc oxide, 10-12 parts of white carbon black, 5-8 parts of silicon carbide and 2-3 parts of an anti-aging agent;
the first tensile layer (2) and the second tensile layer (4) are respectively composed of the following raw materials in parts by weight: 22-25 parts of styrene butadiene rubber, 16-20 parts of epoxy resin, 8-10 parts of aerogel, 5-8 parts of zinc stearate, 4-6 parts of sulfur and 2-4 parts of reinforcing agent;
the weaving layer (3) is formed by mutually weaving a plurality of strips (31);
the insulating layer (5) is composed of the following raw materials in parts by weight: 20-22 parts of organic silicon rubber, 15-18 parts of polypropylene, 10-12 parts of polyamide resin, 6-8 parts of epoxidized soybean oil, 3-6 parts of antimony trioxide, 2-4 parts of glass fiber and 1-2 parts of a cross-linking agent.
2. A high strength tear resistant cable as claimed in claim 1, wherein said abrasion resistant layer (1) is composed of the following raw materials in parts by weight: 30 parts of butyl rubber, 23 parts of ethylene propylene diene monomer, 16 parts of fluorinated polyethylene, 10 parts of aluminum hydroxide, 8 parts of zinc oxide, 11 parts of white carbon black, 6 parts of silicon carbide and 2 parts of an anti-aging agent;
the first tensile layer (2) and the second tensile layer (4) are respectively composed of the following raw materials in parts by weight: 23 parts of styrene butadiene rubber, 18 parts of epoxy resin, 9 parts of aerogel, 6 parts of zinc stearate, 5 parts of sulfur and 3 parts of reinforcing agent;
the insulating layer (5) is composed of the following raw materials in parts by weight: 21 parts of organic silicon rubber, 16 parts of polypropylene, 11 parts of polyamide resin, 7 parts of epoxidized soybean oil, 4 parts of antimony trioxide, 3 parts of glass fiber and 1 part of crosslinking agent.
3. A high strength tear resistant cable as claimed in claim 2 wherein said strips (31) are rectangular and 0.5-1 cm wide and are of nylon and/or rubber.
4. A method of making a high strength, tear resistant cable as claimed in any one of claims 1 to 3, comprising the steps of:
s1, putting the butyl rubber, the ethylene propylene diene monomer, the chlorinated polyethylene, the aluminum hydroxide, the zinc oxide, the white carbon black, the silicon carbide and the anti-aging agent into a kneading machine for mixing and milling to obtain a wear-resistant layer milling raw material;
s2, putting the wear-resistant layer mixed raw material into a granulator for granulation to obtain wear-resistant layer granular raw material with uniform granules;
s3, putting the wear-resistant layer particle raw material into an extruder for extrusion to obtain a wear-resistant layer strip material;
s4, putting the styrene butadiene rubber, the epoxy resin, the aerogel, the zinc stearate, the sulfur and the reinforcing agent into a kneader for mixing and mixing to obtain a tensile layer mixing raw material;
s5, putting the tensile layer mixing raw material into a granulator for granulation to obtain a tensile layer granular raw material;
s6, putting the raw material of the tensile layer particles into an extruder to be extruded to obtain a tensile layer strip material;
s7, weaving the strip (31) through a weaving machine to obtain a weaving layer strip material;
s8, putting the organic silicon rubber, the polypropylene, the polyamide resin, the epoxidized soybean oil, the antimony trioxide, the glass fiber and the cross-linking agent into a kneader for mixing and milling to obtain an insulating layer milling raw material;
s9, putting the insulating layer mixing raw material into a granulator for granulation to obtain an insulating layer granular raw material;
s10, putting the insulating layer particle raw material into an extruder for extrusion to obtain an insulating layer strip material;
s11, coating the insulating layer strip material on the conductor core (6) through a coating machine to obtain an insulating layer (5), coating the tensile layer strip material on the insulating layer (5) to obtain a second tensile layer (4), coating the weaving layer strip material on the second tensile layer (4) to obtain a weaving layer (3), coating the tensile layer strip material on the weaving layer (3) to obtain a first tensile layer (2), coating the wear layer strip material on the first tensile layer (2) to obtain a wear layer (1), and obtaining the high-strength pull-resistant cable.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011027199.9A CN112164490A (en) | 2020-09-25 | 2020-09-25 | High-strength pull-resistant cable and preparation method thereof |
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| CN202011027199.9A CN112164490A (en) | 2020-09-25 | 2020-09-25 | High-strength pull-resistant cable and preparation method thereof |
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| CN102074292A (en) * | 2010-12-15 | 2011-05-25 | 天津市华之阳特种线缆有限公司 | High-compatibility refrigerant-resistant closed motor lead wire |
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Application publication date: 20210101 |