CN112133482A - Cold-resistant flexible cable and preparation process thereof - Google Patents
Cold-resistant flexible cable and preparation process thereof Download PDFInfo
- Publication number
- CN112133482A CN112133482A CN202010896998.3A CN202010896998A CN112133482A CN 112133482 A CN112133482 A CN 112133482A CN 202010896998 A CN202010896998 A CN 202010896998A CN 112133482 A CN112133482 A CN 112133482A
- Authority
- CN
- China
- Prior art keywords
- parts
- cold
- cable
- resistant
- flexible cable
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/16—Elastomeric ethene-propene or ethene-propene-diene copolymers, e.g. EPR and EPDM rubbers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/26—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers modified by chemical after-treatment
- C08L23/28—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers modified by chemical after-treatment by reaction with halogens or compounds containing halogen
- C08L23/286—Chlorinated polyethylene
-
- 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
-
- 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
-
- 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
-
- 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
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2237—Oxides; Hydroxides of metals of titanium
- C08K2003/2241—Titanium dioxide
-
- 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
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2296—Oxides; Hydroxides of metals of zinc
-
- 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
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/20—Applications use in electrical or conductive gadgets
- C08L2203/202—Applications use in electrical or conductive gadgets use in electrical wires or wirecoating
-
- 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
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Organic Insulating Materials (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses a cold-resistant flexible cable and a preparation process thereof. The invention also discloses a preparation process of the cold-resistant flexible cable. The flexibility of the cable in a cold environment can be effectively improved, so that the cable can be moved and used easily in the cold environment and is not easy to crack.
Description
Technical Field
The invention relates to the technical field of cable processing, in particular to a cold-resistant flexible cable and a preparation process thereof.
Background
The existing cable structure mainly comprises a single-core cable and a five-core cable. Single core cable and five core cables all include the conductor, the cladding at conductor outlying insulating layer and set up at outermost sheath, but current cable structure compliance is not good, especially under low temperature environment, because ambient temperature crosses lowly and cable hardness is too big for the cable is difficult for twisting the removal, and easily takes place the phenomenon of insulating frost crack, thereby leads to the interrupt of power supply and signal, can't satisfy the user demand.
Disclosure of Invention
The invention aims to provide a cold-resistant flexible cable and a preparation process thereof, which can effectively improve the flexibility of the cable in a cold environment, so that the cable can be moved and used easily in the cold environment and is not easy to crack.
In order to solve the technical problems, the technical scheme provided by the invention is as follows:
the utility model provides a cold-resistant type flexible cable, the flexible cable is including cold-resistant rubber sheath, the inside of cold-resistant rubber sheath is provided with the copper conductor, the outside cladding of copper conductor has cold-resistant rubber insulation layer.
In one embodiment, a male coupler is connected to one end of the flexible cable, and a female coupler adapted to the male coupler is connected to the other end of the flexible cable.
In one embodiment, the cold-resistant rubber insulation layer comprises the following components in parts by weight: 45-55 parts of ethylene propylene diene monomer, 20-30 parts of talcum powder, 20-30 parts of calcined kaolin, 4-6 parts of white carbon black, 2.5-3.5 parts of nano zinc oxide, 2.5-3.5 parts of microcrystalline wax, 2-3 parts of titanium dioxide, 0.4-0.6 part of stearic acid, 0.7-0.9 part of antioxidant RD, 0.8-1.2 parts of antioxidant synergist MB, 4-6 parts of rubber paraffin oil, 0.3-0.5 part of silane coupling agent A-172, 1.8-2.2 parts of dicumyl peroxide and 1-1.2 parts of triallyl isocyanurate.
In one embodiment, the cold-resistant rubber sheath comprises the following components in parts by weight: 45-55 parts of chlorinated polyethylene, 8-12 parts of polyolefin elastomer, 15-25 parts of modified kaolin, 8-12 parts of white carbon black, 2-3 parts of carbon black, 6-8 parts of light magnesium oxide, 3-5 parts of calcium-zinc stabilizer, 8-10 parts of flame retardant, 1.5-2.5 parts of red lead, 3.5-4.5 parts of chlorinated paraffin, 5-6 parts of dioctyl sebacate, 5-6 parts of trichloroethyl phosphate, 0.4-0.6 part of anti-aging agent RD, 0.4-0.6 part of silane coupling agent KH-402, 1.8-2.2 parts of dicumyl peroxide and 1-1.2 parts of triallyl isocyanurate.
In one embodiment, the flexible cable is a monocable, the monocable includes a cable core, the outside cladding of cable core has cold-resistant rubber sheath, the cable core includes the copper conductor, the outside cladding of copper conductor has cold-resistant rubber insulation layer.
In one of them embodiment, the flexible cable is the multicore cable, the multicore cable includes a plurality of cable cores, and is whole the outside cladding of cable core has around the band, the outside cladding around the band has cold-resistant rubber sheath, it has the filler, every to fill in the clearance between the cable core inside around the band the cable core all includes the copper conductor, the outside cladding of copper conductor has cold-resistant rubber insulation layer.
A preparation process of a cold-resistant flexible cable comprises the following steps:
1) stranding a plurality of copper monofilaments to form a copper conductor, wherein the plurality of copper monofilaments are divided into a plurality of layers from inside to outside, and the stranding directions of two adjacent layers of copper monofilaments are opposite;
2) covering a cold-resistant rubber insulating layer on the outer part of the copper conductor to form a cable core;
3) and covering the cold-resistant rubber sheath outside the cable core to form the flexible cable.
In one embodiment, after step 3), a male coupler is further connected to one end of the flexible cable, and a female coupler adapted to the male coupler is connected to the other end of the flexible cable.
In one embodiment, the preparation method of the cold-resistant rubber insulation layer comprises the following steps:
1) adding ethylene propylene diene monomer into an internal mixer, and mixing for 1-2 minutes at 105-115 ℃;
2) adding talcum powder, calcined kaolin, white carbon black, nano zinc oxide, microcrystalline wax, titanium dioxide, stearic acid, an anti-aging agent RD, an anti-aging synergist MB, rubber paraffin oil and a silane coupling agent A-172 into the internal mixer and mixing for 4-5 minutes;
3) adding dicumyl peroxide and triallyl isocyanurate into the internal mixer and mixing for 0.5-1 minute to form a first mixed rubber material;
4) taking the first mixed rubber material out of the internal mixer, and placing the taken first mixed rubber material in a first open mill for mill run treatment;
5) taking the first mixed rubber material out of the first open mill, and putting the taken first mixed rubber material into a rubber filter for rubber filtering treatment;
6) placing the first mixed rubber material subjected to rubber filtering treatment in a second open mill for rubber turning and rolling;
7) taking the first mixed rubber material out of the second open mill, and placing the taken first mixed rubber material into a calender for calendering treatment to form a first rubber sheet;
8) and cooling the first film, conveying the cooled first film to a talcum powder box, and then outputting.
In one embodiment, the preparation method of the cold-resistant rubber sheath comprises the following steps:
1) adding chlorinated polyethylene and polyolefin elastomer into an internal mixer, and mixing for 1-2 minutes at 105-115 ℃;
2) adding modified kaolin, white carbon black, light magnesium oxide, a calcium-zinc stabilizer, a flame retardant, red lead, chlorinated paraffin, dioctyl sebacate, trichloroethyl phosphate, an anti-aging agent RD and a silane coupling agent KH-402 into the internal mixer, and mixing for 4-5 minutes;
3) adding dicumyl peroxide and triallyl isocyanurate into the internal mixer, and mixing for 0.5-1 minute to form a second mixed rubber material;
4) taking the second mixed rubber material out of the internal mixer, and placing the taken second mixed rubber material into a first open mill for thin passing treatment;
5) taking the second mixed rubber material out of the first open mill, and placing the second mixed rubber material in a second open mill for rubber turning and rolling;
6) taking the second mixed rubber material out of the second open mill, and placing the taken second mixed rubber material into a calender for calendering treatment to form a second rubber sheet;
7) and cooling the second film, conveying the cooled second film to a talcum powder box, and then outputting.
The invention has the following beneficial effects: according to the cold-resistant flexible cable and the preparation process thereof, the cable can still keep good flexibility in a cold environment, the cable can be moved and used easily in the cold environment, the cable is not easy to crack, and the cable has good torsion resistance.
Drawings
FIG. 1 is a schematic structural view of the flexible cable of the present invention as a single core cable;
FIG. 2 is a schematic structural view of the flexible cable of the present invention as a multi-core cable;
FIG. 3 is a schematic structural diagram of a WH400A-TJ-L1 male pin plug;
FIG. 4 is a schematic structural diagram of a WH400A-TK-L1 female needle plug;
FIG. 5 is a schematic diagram of the structure of a TYP975125A penta-pole IP67 plug;
FIG. 6 is a schematic diagram of the structure of a TYP 2724125A five-pole IP67 connector;
in the figure: 1. the cable comprises a cable core, 11, a copper conductor, 12, a cold-resistant rubber insulating layer, 2, a cold-resistant rubber sheath, 3, a filler and 4, and a wrapping tape.
Detailed Description
The present invention is further described below in conjunction with the following figures and specific examples so that those skilled in the art may better understand the present invention and practice it, but the examples are not intended to limit the present invention.
As shown in fig. 1-2, the present embodiment discloses a cold-resistant flexible cable, which includes a cold-resistant rubber sheath 2, a copper conductor 11 disposed inside the cold-resistant rubber sheath 2, and a cold-resistant rubber insulating layer 12 coated outside the copper conductor 11.
The copper conductor 11 has good flexibility, the cold-resistant rubber insulating layer 12 and the cold-resistant rubber sheath 2 have good low-temperature resistance and flexibility, the cable can still keep good flexibility in a low-temperature environment, the torsion resistance is strong, and the cable is not easy to crack.
In one embodiment, a male coupler is connected to one end of the flexible cable, and a female coupler adapted to the male coupler is connected to the other end of the flexible cable. For example, when the flexible cable is a single-core cable, as shown in fig. 3 and 4, the male coupler may adopt an H400A-TJ-L1 male pin plug, and the female coupler may adopt a WH400A-TK-L1 female pin plug; when the flexible cable is a five-core cable, as shown in fig. 5 and 6, the male coupler can adopt a TYP975125A five-pole IP67 plug, and the female coupler can adopt a TYP 2724125A five-pole IP67 connector.
When carrying out circuit laying among the prior art, the cable junction installation of mounted position with the fixed length is generally designed well in advance, this type lays the nimble mobility of mode poor, it changes the power consumption position temporarily not to be convenient for, and the above-mentioned structure of this embodiment is connected with public coupler and female coupler respectively at the both ends of fixed length flexible cable, setting through this public coupler and female coupler, the quick connection of realization multistage cable that can be convenient, only need during the connection with the public coupler of one section cable one end insert in the female coupler of another end cable tip can, easy operation is convenient, can make up wantonly in the interim power supply project, can swiftly realize the change and the position adjustment of interim power consumption circuit length.
Furthermore, a clamping bolt locking device can be arranged at the end part of the cable to ensure that the male coupler and the female coupler in the two sections of cables can be locked after being combined, so that the couplers are prevented from being disconnected by people accidentally, and the safety and the reliability of connection are ensured.
In one embodiment, the cold-resistant rubber insulation layer 12 comprises the following components in parts by weight: 45-55 parts of ethylene propylene diene monomer, 20-30 parts of talcum powder, 20-30 parts of calcined kaolin, 4-6 parts of white carbon black, 2.5-3.5 parts of nano zinc oxide, 2.5-3.5 parts of microcrystalline wax, 2-3 parts of titanium dioxide, 0.4-0.6 part of stearic acid, 0.7-0.9 part of antioxidant RD, 0.8-1.2 parts of antioxidant synergist MB, 4-6 parts of rubber paraffin oil, 0.3-0.5 part of silane coupling agent A-172, 1.8-2.2 parts of dicumyl peroxide (DCP) and 1-1.2 parts of triallyl isocyanurate (TAIC). The cold-resistant rubber insulating layer 12 with the proportion can keep good flexibility of the cable in a cold environment.
In one embodiment, the cold-resistant rubber sheath 2 comprises the following components in parts by weight: 45-55 parts of chlorinated polyethylene, 8-12 parts of polyolefin elastomer (POE), 15-25 parts of modified kaolin, 8-12 parts of white carbon black, 2-3 parts of carbon black, 6-8 parts of light magnesium oxide, 3-5 parts of calcium-zinc stabilizer, 8-10 parts of flame retardant, 1.5-2.5 parts of red lead, 3.5-4.5 parts of chlorinated paraffin, 5-6 parts of dioctyl sebacate (DOS), 5-6 parts of trichloroethyl phosphate (TCEP), 0.4-0.6 part of anti-aging agent RD, 0.4-0.6 part of silane coupling agent KH-402, 1.8-2.2 parts of dicumyl peroxide (DCP) and 1-1.2 parts of triallyl isocyanurate (TAIC). The cold-resistant rubber sheath 2 with the proportion can keep good flexibility of the cable in a cold environment.
Furthermore, the mesh number of the talcum powder is 1250 meshes so as to improve the fineness of the talcum powder.
In one embodiment, as shown in fig. 1, the flexible cable is a mono-core cable, the mono-core cable comprises a cable core 1, the outer part of the cable core 1 is coated with a cold-resistant rubber sheath 2, the cable core 1 comprises a copper conductor 11, and the outer part of the copper conductor 11 is coated with a cold-resistant rubber insulating layer 12.
In one embodiment, as shown in fig. 2, the flexible cable is a multi-core cable, the multi-core cable includes a plurality of cable cores 1, the outer portion of all the cable cores 1 is wrapped with a wrapping tape 4, the outer portion of the wrapping tape 4 is wrapped with a cold-resistant rubber sheath 2, a gap between the cable cores 1 inside the wrapping tape 4 is filled with a filler 3, each cable core 1 includes a copper conductor 11, and the outer portion of the copper conductor 11 is wrapped with a cold-resistant rubber insulating layer 12.
Preferably, as shown in fig. 2, the multi-core cable is a five-core cable.
In one embodiment, the material of the filler 3 is the same as that of the cold-resistant rubber sheath 2, so as to improve the flexibility of the cable.
The embodiment also discloses a preparation method of the cold-resistant flexible cable, which comprises the following steps:
1) a plurality of copper monofilaments are twisted to form a copper conductor 11, the copper monofilaments are divided into a plurality of layers from inside to outside, and the twisting directions of two adjacent layers of copper monofilaments are opposite; the stranding pitch of the copper monofilament on the outermost layer is not more than 12 times of the stranding outer diameter, the secondary outer layer is not more than 14 times of the stranding outer diameter, and the like;
2) coating a cold-resistant rubber insulating layer 12 outside the copper conductor 11 to form a cable core 1;
3) the outer part of the cable core 1 is coated with a cold-resistant rubber sheath 2 to form a flexible cable;
in one embodiment, after step 3), a male coupler is connected to one end of the flexible cable, and a female coupler adapted to the male coupler is connected to the other end of the flexible cable.
Wherein, the copper monofilament can adopt a tinned copper wire or a bare copper wire. The thinner the copper monofilament diameter, the better the flexibility; the conductor layers are twisted in the forward and reverse directions, the twisting pitch of the copper monofilament on the outermost layer is not more than 12 times of the twisting outer diameter, the secondary outer layer is not more than 14 times, and the like, so that each layer is ensured to have smaller twisting distance, and the bending performance of the cable is improved.
In one embodiment, the preparation method of the cold-resistant rubber insulation layer 12 comprises the following steps:
1) adding ethylene propylene diene monomer into an internal mixer, and mixing for 1-2 minutes at 105-115 ℃ to ensure uniform mixing;
2) adding talcum powder, calcined kaolin, white carbon black, nano zinc oxide, microcrystalline wax, titanium dioxide, stearic acid, an anti-aging agent RD, an anti-aging synergist MB, rubber paraffin oil and a silane coupling agent A-172 into an internal mixer, and mixing for 4-5 minutes to ensure uniform mixing;
3) adding dicumyl peroxide (DCP) and triallyl isocyanurate (TAIC) into an internal mixer, and mixing for 0.5-1 minute to form a first mixed rubber material;
4) taking the first mixed rubber material out of the internal mixer, and performing thin passing on the taken first mixed rubber material on an open mill for 1-2 times, and simultaneously performing rubber swinging for 4-6 times;
5) taking the first mixed rubber material out of the first open mill, and putting the taken first mixed rubber material into a rubber filter for rubber filtering treatment;
6) turning the rubber-filtered first mixed rubber material on a second open mill for 2-3 times and then rolling;
7) taking the first mixed rubber material out of the second open mill, and placing the taken first mixed rubber material into a calender for calendering treatment to form a first rubber sheet;
8) and (3) cooling the first rubber sheet, conveying the cooled first rubber sheet to a talcum powder box, and then outputting the cooled first rubber sheet, so as to obtain the cold-resistant rubber insulating layer 12.
Wherein, carry first film to talcum powder case, be in order to keep apart each film, avoid taking place the adhesion between every layer of film and lead to unable normal use.
In one embodiment, the rubber filter comprises a 40-mesh screen, a 60-mesh screen and a 40-mesh screen in sequence, so that the first or second mixed rubber material is filtered by a three-layer screen structure to remove impurities.
In one embodiment, the preparation method of the cold-resistant rubber sheath 2 comprises the following steps:
1) adding chlorinated polyethylene and polyolefin elastomer (POE) into an internal mixer, and mixing for 1-2 minutes at 105-115 ℃ to ensure uniform mixing;
2) adding modified kaolin, white carbon black, light magnesium oxide, a calcium-zinc stabilizer, a flame retardant, red lead, chlorinated paraffin, dioctyl sebacate, trichloroethyl phosphate, an anti-aging agent RD and a silane coupling agent KH-402 into an internal mixer, and mixing for 4-5 minutes to ensure uniform mixing;
3) adding dicumyl peroxide (DCP) and triallyl isocyanurate (TAIC) into an internal mixer, and mixing for 0.5-1 minute to form a second mixed rubber material;
4) taking the second mixed rubber material out of the internal mixer, placing the taken second mixed rubber material in a first open mill for thinly passing for 1-2 times, and simultaneously swinging for 4-6 times;
5) taking the second mixed rubber material out of the first open mill, placing the second mixed rubber material in the second open mill, turning the rubber for 2-3 times, and rolling;
6) taking the second mixed rubber material out of the second open mill, and placing the second mixed rubber material taken out into a calender for calendering treatment to form a second rubber sheet;
7) and cooling the second rubber sheet, conveying the cooled second rubber sheet to a talcum powder box, and then outputting the cooled second rubber sheet, thereby obtaining the cold-resistant rubber sheath 2.
Wherein, carry the second film to the talcum powder case, be in order to keep apart each film, avoid taking place the adhesion between every layer of film and lead to unable normal use.
The temperature resistance grade of the cold-resistant rubber insulating layer 12 prepared by the proportioning and the process is-40-90 ℃, the change of temperature difference between day and night can be borne, the cold-resistant rubber insulating layer can be used in summer and winter, and the requirement of high-carrying-capacity power transmission can be met; has good electrical property, mechanical and physical properties and higher softness.
The temperature resistance grade of the cold-resistant rubber sheath 2 prepared by the proportion and the process is-40-90 ℃, the cold-resistant rubber sheath can bear the change of temperature difference between day and night, can be used in summer and winter, and can meet the requirement of high-carrying-capacity power transmission; the fabric has good electrical performance, mechanical and physical properties and higher softness; the cable has good aging resistance, ultraviolet resistance, ozone resistance and other properties, ensures that the sheath cannot be rapidly aged under the conditions of long-term bending, dragging and sunlight exposure, and prolongs the service life of the cable;
in one embodiment, the calender is a three-roll calender.
The flexible cable of the embodiment has good overall flexibility, is suitable for being used in a repeatedly bending and moving state, and has the minimum allowable bending radius of 6 times of the diameter of the cable; the maximum allowable tension force during cable laying is not lower than 70N/mm2The maximum allowable tension in operation is not lower than 15N/mm2(ii) a The waterproof grade of the cable reaches IP67, and the use requirement of outdoor rainy and snowy weather is met; the cable meets the corresponding temperature rise requirement, namely under the working condition of rated current, the temperature rise of the end part of the external copper busbar is not more than 50K, and the temperature rise of the contact part of the conductive piece is not more than 55K; the cable has enough pull-out force, and for cables with different cross sections, the corresponding pull-out force meets the requirements of the international electrotechnical commission IEC61238-1 standard.
The flexible cable of this embodiment, through the structural design of flexible copper conductor 11, cold-resistant type rubber insulation layer 12 and cold-resistant type rubber sheath 2, has improved the compliance of cable for the cable still can keep better compliance under cold circumstance, like under the low temperature environment of-40 ℃, makes the cable still can remove the use easily under cold circumstance, and difficult fracture has better resistant torsion nature.
The above-mentioned embodiments are merely preferred embodiments for fully illustrating the present invention, and the scope of the present invention is not limited thereto. The equivalent substitution or change made by the technical personnel in the technical field on the basis of the invention is all within the protection scope of the invention. The protection scope of the invention is subject to the claims.
Claims (10)
1. The utility model provides a cold-resistant type flexible cable, its characterized in that, flexible cable includes cold-resistant rubber sheath, the inside of cold-resistant rubber sheath is provided with the copper conductor, the outside cladding of copper conductor has cold-resistant rubber insulation layer.
2. The cold-tolerant flexible cable of claim 1, wherein a male coupler is connected to one end of the flexible cable, and a female coupler adapted to the male coupler is connected to the other end of the flexible cable.
3. The cold-resistant flexible cable as claimed in claim 1, wherein the cold-resistant rubber insulation layer comprises the following components in parts by weight: 45-55 parts of ethylene propylene diene monomer, 20-30 parts of talcum powder, 20-30 parts of calcined kaolin, 4-6 parts of white carbon black, 2.5-3.5 parts of nano zinc oxide, 2.5-3.5 parts of microcrystalline wax, 2-3 parts of titanium dioxide, 0.4-0.6 part of stearic acid, 0.7-0.9 part of antioxidant RD, 0.8-1.2 parts of antioxidant synergist MB, 4-6 parts of rubber paraffin oil, 0.3-0.5 part of silane coupling agent A-172, 1.8-2.2 parts of dicumyl peroxide and 1-1.2 parts of triallyl isocyanurate.
4. The cold-resistant flexible cable of claim 1, wherein the cold-resistant rubber sheath comprises the following components in parts by weight: 45-55 parts of chlorinated polyethylene, 8-12 parts of polyolefin elastomer, 15-25 parts of modified kaolin, 8-12 parts of white carbon black, 2-3 parts of carbon black, 6-8 parts of light magnesium oxide, 3-5 parts of calcium-zinc stabilizer, 8-10 parts of flame retardant, 1.5-2.5 parts of red lead, 3.5-4.5 parts of chlorinated paraffin, 5-6 parts of dioctyl sebacate, 5-6 parts of trichloroethyl phosphate, 0.4-0.6 part of anti-aging agent RD, 0.4-0.6 part of silane coupling agent KH-402, 1.8-2.2 parts of dicumyl peroxide and 1-1.2 parts of triallyl isocyanurate.
5. The cold-resistant flexible cable of claim 1, wherein the flexible cable is a monocable, the monocable comprises a cable core, the outer cladding of the cable core is provided with the cold-resistant rubber sheath, the cable core comprises the copper conductor, and the outer cladding of the copper conductor is provided with the cold-resistant rubber insulating layer.
6. The cold-resistant flexible cable of claim 1, wherein the flexible cable is a multi-core cable, the multi-core cable comprises a plurality of cable cores, all of the cable cores are wrapped with a wrapping tape, the cold-resistant rubber sheath is wrapped with the wrapping tape, fillers are filled in gaps between the cable cores inside the wrapping tape, each of the cable cores comprises a copper conductor, and the cold-resistant rubber insulating layer is wrapped with the copper conductor.
7. A preparation process of a cold-resistant flexible cable is characterized by comprising the following steps:
1) stranding a plurality of copper monofilaments to form a copper conductor, wherein the plurality of copper monofilaments are divided into a plurality of layers from inside to outside, and the stranding directions of two adjacent layers of copper monofilaments are opposite;
2) covering a cold-resistant rubber insulating layer on the outer part of the copper conductor to form a cable core;
3) and covering the cold-resistant rubber sheath outside the cable core to form the flexible cable.
8. The method for preparing a cold-resistant flexible cable according to claim 7, wherein after the step 3), a male coupler is connected to one end of the flexible cable, and a female coupler adapted to the male coupler is connected to the other end of the flexible cable.
9. The method for preparing a cold-resistant flexible cable as claimed in claim 7, wherein the method for preparing the cold-resistant rubber insulation layer comprises the following steps:
1) adding ethylene propylene diene monomer into an internal mixer, and mixing for 1-2 minutes at 105-115 ℃;
2) adding talcum powder, calcined kaolin, white carbon black, nano zinc oxide, microcrystalline wax, titanium dioxide, stearic acid, an anti-aging agent RD, an anti-aging synergist MB, rubber paraffin oil and a silane coupling agent A-172 into the internal mixer and mixing for 4-5 minutes;
3) adding dicumyl peroxide and triallyl isocyanurate into the internal mixer and mixing for 0.5-1 minute to form a first mixed rubber material;
4) taking the first mixed rubber material out of the internal mixer, and placing the taken first mixed rubber material in a first open mill for mill run treatment;
5) taking the first mixed rubber material out of the first open mill, and putting the taken first mixed rubber material into a rubber filter for rubber filtering treatment;
6) placing the first mixed rubber material subjected to rubber filtering treatment in a second open mill for rubber turning and rolling;
7) taking the first mixed rubber material out of the second open mill, and placing the taken first mixed rubber material into a calender for calendering treatment to form a first rubber sheet;
8) and cooling the first film, conveying the cooled first film to a talcum powder box, and then outputting.
10. The method for preparing a cold-resistant flexible cable as claimed in claim 7, wherein the method for preparing the cold-resistant rubber sheath comprises the following steps:
1) adding chlorinated polyethylene and polyolefin elastomer into an internal mixer, and mixing for 1-2 minutes at 105-115 ℃;
2) adding modified kaolin, white carbon black, light magnesium oxide, a calcium-zinc stabilizer, a flame retardant, red lead, chlorinated paraffin, dioctyl sebacate, trichloroethyl phosphate, an anti-aging agent RD and a silane coupling agent KH-402 into the internal mixer, and mixing for 4-5 minutes;
3) adding dicumyl peroxide and triallyl isocyanurate into the internal mixer, and mixing for 0.5-1 minute to form a second mixed rubber material;
4) taking the second mixed rubber material out of the internal mixer, and placing the taken second mixed rubber material into a first open mill for thin passing treatment;
5) taking the second mixed rubber material out of the first open mill, and placing the second mixed rubber material in a second open mill for rubber turning and rolling;
6) taking the second mixed rubber material out of the second open mill, and placing the taken second mixed rubber material into a calender for calendering treatment to form a second rubber sheet;
7) and cooling the second film, conveying the cooled second film to a talcum powder box, and then outputting.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010896998.3A CN112133482A (en) | 2020-08-31 | 2020-08-31 | Cold-resistant flexible cable and preparation process thereof |
| PCT/CN2020/128230 WO2022041493A1 (en) | 2020-08-31 | 2020-11-12 | Cold-resistant flexible electrical cable and preparation process therefor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010896998.3A CN112133482A (en) | 2020-08-31 | 2020-08-31 | Cold-resistant flexible cable and preparation process thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112133482A true CN112133482A (en) | 2020-12-25 |
Family
ID=73847727
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010896998.3A Pending CN112133482A (en) | 2020-08-31 | 2020-08-31 | Cold-resistant flexible cable and preparation process thereof |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN112133482A (en) |
| WO (1) | WO2022041493A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113488255A (en) * | 2021-06-29 | 2021-10-08 | 晶锋集团股份有限公司 | Low-transmission-impedance reactance variable-frequency cable material and preparation method thereof |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114664482A (en) * | 2022-03-30 | 2022-06-24 | 宁波宁港线缆制造有限公司 | High-flexibility and distortion-resistant cable material and preparation method thereof |
| CN115044145A (en) * | 2022-07-15 | 2022-09-13 | 安徽英杰华电气有限公司 | Preparation process of waterproof flame-retardant cable for ship |
| CN115954637B (en) * | 2022-12-14 | 2023-10-20 | 江苏云舟通信科技有限公司 | Corrosion-resistant flexible coaxial cable and preparation method thereof |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1160846A (en) * | 1997-08-22 | 1999-03-05 | Furukawa Electric Co Ltd:The | Insulating rubber composition |
| CN101643563A (en) * | 2009-08-27 | 2010-02-10 | 江苏久立电缆有限公司 | Chlorinated polyethylene used for preparation of low temperature wind energy cable and preparation method thereof |
| CN102250426A (en) * | 2011-06-08 | 2011-11-23 | 上海南洋电缆有限公司 | Cable sheath rubber |
| CN102354564A (en) * | 2011-08-26 | 2012-02-15 | 重庆鸽牌电线电缆有限公司 | 2MW wind power generation cable with torsion-resistant sheath |
| CN102399397A (en) * | 2011-09-29 | 2012-04-04 | 江苏亨通电力电缆有限公司 | Cold-resistant rubber cable sheath material and preparation method |
| CN103613870A (en) * | 2013-11-18 | 2014-03-05 | 无锡市沪安电线电缆有限公司 | Preparation method of environmental low temperature resistant and acid and alkali resistant cable sheath rubbers |
| CN104530549A (en) * | 2014-12-30 | 2015-04-22 | 上海至正道化高分子材料股份有限公司 | High cold-resistance and oil-resistance low-smoke halogen-free flame retardant cable material for irradiation crosslinking rolling stock and preparation method thereof |
| WO2016104888A1 (en) * | 2014-12-23 | 2016-06-30 | 엘에스전선 주식회사 | Halogen-free insulating composition having excellent oil resistance and cold resistance, and wire including insulating layer formed therefrom |
| CN110746710A (en) * | 2019-11-20 | 2020-02-04 | 特变电工(德阳)电缆股份有限公司 | High-wear-resistance sheath material for cable and preparation method thereof |
| CN111471244A (en) * | 2020-04-27 | 2020-07-31 | 宝胜科技创新股份有限公司 | High-strength high-viscosity low-temperature-resistant chlorinated polyethylene rubber-based cable sheath material and preparation method thereof |
| CN211208023U (en) * | 2019-09-17 | 2020-08-07 | 上海新时达线缆科技有限公司 | Patch cable and cable assembly |
| CN111540507A (en) * | 2020-04-30 | 2020-08-14 | 安徽电缆股份有限公司 | Cable with high flame retardance for oil platform |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2668433C (en) * | 2008-06-10 | 2017-10-31 | Randy Kummer | Low temperature applications of flame retardant power cable |
| CN103928162A (en) * | 2013-01-10 | 2014-07-16 | 山东宝世达电缆有限公司 | Wind power generation-used cold-resistant torsion-resistant high-voltage flexible cable and technology thereof |
| CN209298512U (en) * | 2018-12-28 | 2019-08-23 | 建德市万家电器电缆有限公司 | A kind of power extending line of the multiple sockets of band |
| CN110504053B (en) * | 2019-08-28 | 2020-11-10 | 江苏亨通电力电缆有限公司 | Medium-voltage anti-torsion power cable for wind generating set |
| CN110491588A (en) * | 2019-09-19 | 2019-11-22 | 江苏亨通电力电缆有限公司 | A kind of novel rail eraser sheath DC traction cable and preparation method thereof |
-
2020
- 2020-08-31 CN CN202010896998.3A patent/CN112133482A/en active Pending
- 2020-11-12 WO PCT/CN2020/128230 patent/WO2022041493A1/en active Application Filing
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1160846A (en) * | 1997-08-22 | 1999-03-05 | Furukawa Electric Co Ltd:The | Insulating rubber composition |
| CN101643563A (en) * | 2009-08-27 | 2010-02-10 | 江苏久立电缆有限公司 | Chlorinated polyethylene used for preparation of low temperature wind energy cable and preparation method thereof |
| CN102250426A (en) * | 2011-06-08 | 2011-11-23 | 上海南洋电缆有限公司 | Cable sheath rubber |
| CN102354564A (en) * | 2011-08-26 | 2012-02-15 | 重庆鸽牌电线电缆有限公司 | 2MW wind power generation cable with torsion-resistant sheath |
| CN102399397A (en) * | 2011-09-29 | 2012-04-04 | 江苏亨通电力电缆有限公司 | Cold-resistant rubber cable sheath material and preparation method |
| CN103613870A (en) * | 2013-11-18 | 2014-03-05 | 无锡市沪安电线电缆有限公司 | Preparation method of environmental low temperature resistant and acid and alkali resistant cable sheath rubbers |
| WO2016104888A1 (en) * | 2014-12-23 | 2016-06-30 | 엘에스전선 주식회사 | Halogen-free insulating composition having excellent oil resistance and cold resistance, and wire including insulating layer formed therefrom |
| CN104530549A (en) * | 2014-12-30 | 2015-04-22 | 上海至正道化高分子材料股份有限公司 | High cold-resistance and oil-resistance low-smoke halogen-free flame retardant cable material for irradiation crosslinking rolling stock and preparation method thereof |
| CN211208023U (en) * | 2019-09-17 | 2020-08-07 | 上海新时达线缆科技有限公司 | Patch cable and cable assembly |
| CN110746710A (en) * | 2019-11-20 | 2020-02-04 | 特变电工(德阳)电缆股份有限公司 | High-wear-resistance sheath material for cable and preparation method thereof |
| CN111471244A (en) * | 2020-04-27 | 2020-07-31 | 宝胜科技创新股份有限公司 | High-strength high-viscosity low-temperature-resistant chlorinated polyethylene rubber-based cable sheath material and preparation method thereof |
| CN111540507A (en) * | 2020-04-30 | 2020-08-14 | 安徽电缆股份有限公司 | Cable with high flame retardance for oil platform |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113488255A (en) * | 2021-06-29 | 2021-10-08 | 晶锋集团股份有限公司 | Low-transmission-impedance reactance variable-frequency cable material and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2022041493A1 (en) | 2022-03-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112133482A (en) | Cold-resistant flexible cable and preparation process thereof | |
| CN202632804U (en) | DC charging cable for electric vehicle | |
| CN101562064A (en) | Rated voltage of 35kv or below shallow sea wind farm photoelectrical transmission composite cable | |
| WO2013000271A1 (en) | Reinforced optical fiber composite high temperature resistant overhead insulated cable | |
| CN111627604A (en) | Cold-resistant type data transmission cable | |
| CN218768860U (en) | Weather-proof parallel bunched aerial cable with heating and ice and snow removing structure | |
| CN202584895U (en) | Self-radiating flat marine cable for port | |
| CN101950612A (en) | Cable for solar power system | |
| CN216647884U (en) | Low-heat release flexible cable for energy storage system | |
| CN110060810A (en) | One kind can the mining middle pressure soft rubber cable of load monitoring type | |
| CN203055490U (en) | Cold-resistant oil-resistant halogen-free signal cable | |
| CN201812509U (en) | Signal cable for solar photovoltaic power generating system | |
| CN113223751B (en) | Aluminum alloy cable and preparation method thereof | |
| CN209843331U (en) | Durable anti extrusion electric wire | |
| CN202976938U (en) | Six-core flame retardation light cable | |
| CN201845603U (en) | Yellow-green grounding flexible cable for communication power supply | |
| CN216353473U (en) | Rat-proof super-soft tensile connecting wire | |
| CN108831615B (en) | Water-blocking composite cable for offshore oil platform | |
| CN210837220U (en) | 47-core integrated cable | |
| CN217485133U (en) | High-voltage cold-resistant torsion-resistant flame-retardant flexible cable | |
| CN220189261U (en) | A flexible aluminum alloy photovoltaic cable for plateau area heavy grade | |
| CN214428355U (en) | Cold-resistant high temperature-resistant high-precision data transmission super-flexible charging pile cable | |
| CN215118411U (en) | Multipurpose high-temperature-resistant comprehensive data transmission cable | |
| CN204332509U (en) | A kind of electric automobile internal high pressure cable for connecting | |
| CN216671246U (en) | Bending-resistant and tearing-resistant multi-core cable special for new energy automobile |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20201225 |
|
| RJ01 | Rejection of invention patent application after publication |