CN116364335A - Copper-clad aluminum wire clad stranded wire and preparation method thereof - Google Patents
Copper-clad aluminum wire clad stranded wire and preparation method thereof Download PDFInfo
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- CN116364335A CN116364335A CN202310411229.3A CN202310411229A CN116364335A CN 116364335 A CN116364335 A CN 116364335A CN 202310411229 A CN202310411229 A CN 202310411229A CN 116364335 A CN116364335 A CN 116364335A
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- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 138
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 138
- 238000002360 preparation method Methods 0.000 title claims abstract description 13
- 239000010410 layer Substances 0.000 claims abstract description 53
- 238000005253 cladding Methods 0.000 claims abstract description 27
- 238000000034 method Methods 0.000 claims abstract description 23
- 239000003973 paint Substances 0.000 claims abstract description 15
- 239000012792 core layer Substances 0.000 claims abstract description 9
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 44
- 229910052802 copper Inorganic materials 0.000 claims description 39
- 239000010949 copper Substances 0.000 claims description 39
- 238000009987 spinning Methods 0.000 claims description 13
- 239000011248 coating agent Substances 0.000 claims description 9
- 238000000576 coating method Methods 0.000 claims description 9
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical group [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 claims description 8
- 238000005507 spraying Methods 0.000 claims description 8
- 238000003466 welding Methods 0.000 claims description 8
- 150000003949 imides Chemical class 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 6
- 229920003055 poly(ester-imide) Polymers 0.000 claims description 6
- 239000004962 Polyamide-imide Substances 0.000 claims description 3
- 238000000137 annealing Methods 0.000 claims description 3
- 230000001680 brushing effect Effects 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 claims description 3
- 238000004891 communication Methods 0.000 claims description 3
- 238000005520 cutting process Methods 0.000 claims description 3
- 238000001514 detection method Methods 0.000 claims description 3
- 238000001035 drying Methods 0.000 claims description 3
- 230000005672 electromagnetic field Effects 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 3
- 238000005498 polishing Methods 0.000 claims description 3
- 229920002312 polyamide-imide Polymers 0.000 claims description 3
- 229920002635 polyurethane Polymers 0.000 claims description 3
- 239000004814 polyurethane Substances 0.000 claims description 3
- 238000007781 pre-processing Methods 0.000 claims description 3
- 239000004065 semiconductor Substances 0.000 claims description 3
- 239000000126 substance Substances 0.000 claims description 3
- 238000005461 lubrication Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims 6
- 238000012545 processing Methods 0.000 abstract description 4
- 238000004804 winding Methods 0.000 abstract description 4
- 238000013461 design Methods 0.000 abstract description 2
- 230000003014 reinforcing effect Effects 0.000 abstract 1
- 239000002253 acid Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000004020 conductor Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
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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
- H01B7/0009—Details relating to the conductive cores
-
- 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
-
- 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
- H01B13/02—Stranding-up
- H01B13/0207—Details; Auxiliary devices
-
- 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
-
- 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)
- Wire Processing (AREA)
Abstract
The invention discloses a copper-clad aluminum wire coated stranded wire and a preparation method thereof, belongs to the technical field of copper-clad aluminum wires, and aims to solve the problems that when the copper-clad aluminum wire is used as a stranded wire for processing in the prior art, a plurality of strands of wires are required to be stranded on the copper-clad aluminum wire, and in the stranding process, a paint film on the surface of the copper-clad aluminum wire is damaged due to friction in the wire feeding, stranding and wire winding processes, so that the withstand voltage of the stranded wire is greatly reduced. The cable comprises a cable core layer, an outer cladding layer and a copper-clad aluminum wire main body, wherein at least twenty-four copper-clad aluminum wires are wound into one strand; the copper-clad aluminum wire comprises a copper-clad aluminum wire body, a wire core layer and at least five outer wrapping layers, wherein the outer wrapping layers are the copper-clad aluminum wire body; at least one layer, a shielding layer and an insulating layer are arranged outside each strand of copper-clad aluminum wire. According to the copper-clad aluminum wire cladding stranded wire and the preparation method thereof, the multilayer reinforcing design of the copper-clad aluminum wire is adopted, so that the wire has stronger compressive resistance and protection, the hardness in the stranded wire process is improved, and the attractiveness of the subsequent stranded wire preparation is higher.
Description
Technical Field
The invention belongs to the technical field of copper-clad aluminum wires, and particularly relates to a copper-clad aluminum wire clad stranded wire and a preparation method thereof.
Background
The copper-clad aluminum wire is an electric wire which takes an aluminum core wire as a main body and is plated with a copper layer with a certain proportion, and can be used as a conductor for a coaxial cable and a conductor of an electric wire and a cable in electric equipment. The aluminum wire has small specific gravity but poor welding performance, so that the copper-clad aluminum wire can not only utilize the advantage of small specific gravity of aluminum, but also improve welding performance, and is suitable for the electric power and electric appliance industries, and the class grade is international and domestic.
The copper-clad aluminum wire is composed of an aluminum core and a copper layer which is wrapped continuously, and the copper layer is fully combined with the core wire. The quality of the copper-clad aluminum wire meets the requirement of the standard, when the copper-clad aluminum wire is used as a stranded wire for processing, the copper-clad aluminum wire is required to be stranded by a plurality of strands of windings, and in the stranding process, the copper-clad aluminum wire is subjected to friction in the wire feeding, stranding and wire collecting processes, so that a paint film on the surface of the copper-clad aluminum wire is damaged, and the pressure resistance of the stranded wire is greatly reduced.
Disclosure of Invention
(1) Technical problem to be solved
Aiming at the defects of the prior art, the invention aims to provide a copper-clad aluminum wire coated stranded wire and a preparation method thereof, and aims to solve the problems that when the copper-clad aluminum wire is used as a stranded wire for processing in the prior art, a plurality of strands of wires are required to be stranded, and in the stranding process, the copper-clad aluminum wire is subjected to friction in the wire feeding, stranding and wire winding processes to cause damage of a surface paint film, so that the withstand voltage of the stranded wire is greatly reduced.
(2) Technical proposal
In order to solve the technical problems, the invention provides a copper-clad aluminum wire-clad stranded wire, which comprises a wire core layer, an outer cladding layer and a copper-clad aluminum wire main body, wherein at least twenty-four copper-clad aluminum wires are wound into one strand;
the copper-clad aluminum wire comprises a copper-clad aluminum wire body, a wire core layer and at least five outer wrapping layers, wherein the outer wrapping layers are arranged on the outer side of the copper-clad aluminum wire body in a surrounding mode;
and at least one layer, a shielding layer and an insulating layer are arranged outside each strand of copper-clad aluminum wire.
A preparation method of a copper-clad aluminum wire stranded wire comprises the following steps:
s1, selecting an aluminum bar, preprocessing the aluminum bar, and coating copper strips outside the aluminum bar;
s2, carrying out drawing treatment, namely conveying the prepared copper-clad aluminum bar material to a drawing machine for drawing treatment, and carrying out drawing on the copper-clad aluminum bar material for a plurality of times by the drawing machine to form a copper-clad aluminum wire;
s3, detecting the surface of the copper-clad aluminum by using a flaw detection assembly;
s4, conveying the copper-clad aluminum wire to an annealing furnace for treatment, so that a copper layer wrapped on the outer side of the aluminum core is tightly attached to the aluminum core to form a copper-clad aluminum cable;
s5, preparing the obtained copper-clad aluminum wires into stranded wires, and twisting the prepared 24 aluminum-clad copper wires to form a stranded wire;
s6, a strand of stranded wires is used as a central line, stranded wires are continuously added outside the stranded wires, at least five strands of stranded wires are distributed in a surrounding mode, and the stranded wires are twisted and arranged mutually to form a plurality of strands of stranded wires.
And S1, preparing the copper-clad aluminum bar by using a copper-clad aluminum bar preparation furnace after the treatment is finished.
And S2, tightly coating the copper strip on the outer surface of the aluminum rod, and welding by utilizing laser welding, wherein the laser power is 220W-240W, and the laser scanning speed is 470-490mm/min.
And S3, the drawing tension is 55-75 MP, so that the diameter of the copper-clad aluminum wire meets the requirement.
The copper-clad aluminum cable is externally coated with a primer and a surface paint, wherein the primer is a polyester imide paint, the polyester imide paint comprises a Sier and an imide-containing dibasic acid, the mass ratio of the Sier to the imide-containing dibasic acid is 3-4:1, and the surface paint is formed by mixing a sliding substance with polyamide imide.
Further, in S1, the pretreatment includes unreeling, drawing, lubrication, cutting, polishing, and cleaning of the aluminum rod.
Furthermore, after the copper-clad aluminum wires are formed, the copper-clad aluminum wires are placed into a wrapping device to wrap a shielding layer and an insulating layer, the influence of an external electromagnetic field on a power supply or a communication line is reduced, the shielding layer is made of metallized paper or semiconductor paper, the outer layer is made of copper strips, the outer parts of the single copper-clad aluminum wires are continuously wrapped, then the aluminum-clad copper wires wrapped with the shielding layer and the insulating layer are further straightened, and 24 copper-clad wires are selected to be a group to be placed for standby.
Further, twisting the prepared 24 aluminum-clad copper wires to form a stranded wire, providing a spinning shaft with a tail capable of being stuck to the aluminum-clad copper wires when twisting the aluminum-clad copper wires, combining the tail of the spinning shaft with one end of the aluminum-clad copper wire structure, and twisting the aluminum-clad copper wires in a rotating manner by the spinning shaft to form the stranded wire, wherein the process of twisting the aluminum-clad copper wires comprises twisting the aluminum-clad copper wires in the stretching direction of the aluminum-clad copper wires; the method comprises the steps of placing strands formed by twisting 24 copper-clad aluminum wires on a new spinning shaft, taking one strand of the strands as a central line, continuously adding strands outside the strands, at least five strands of the strands, circumferentially distributing the strands, taking the strands in the middle as a wire core, taking the strands outside the strands as cladding wires, mutually arranging the strands in parallel or mutually twisting the strands to form a plurality of strands, obtaining the copper-clad aluminum wire cladding strands, taking the obtained copper-clad aluminum wire cladding strands out of equipment, and putting the copper-clad aluminum wire cladding strands into brushing equipment, and spraying the outer parts of the copper-clad aluminum wire cladding strands.
Furthermore, the coating is sprayed, polyurethane is adopted as the coating, 3-5 layers are uniformly sprayed, and the thickness of each layer is 0.3-1mm; drying at 40-50deg.C for 3-5 hr after spraying.
(3) Advantageous effects
Compared with the prior art, the invention has the beneficial effects that:
according to the invention, through the multilayer reinforcement design of the copper-clad aluminum wire, the wire has stronger compressive resistance and protection, the hardness in the stranding process is improved, the attractiveness of the subsequent stranding preparation is higher, the influence on the copper-clad aluminum wire in the stranding process is smaller, the transmission effect is better when the copper-clad aluminum wire is used subsequently, the effect can not be influenced, the stranded wires are uniformly distributed by re-winding the stranded wires on the special spinning shaft after stranding, the stranded wires are more uniform and compact, the quality of the original enameled single wire can not be damaged, the appearance of the stranded wires is better, the overall performance after stranding is greatly ensured, the use requirement is met, the overall process cooperation is compact, the overall processing efficiency can be effectively improved, and the working hours are saved.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of the structure of the present invention;
the marks in the drawings are: 1. a wire core layer; 2. an outer cladding layer, 3 and a copper-clad aluminum wire main body.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The specific embodiment is a copper-clad aluminum wire cladding stranded wire, the structural schematic diagram of which is shown in fig. 1, and the copper-clad aluminum wire cladding stranded wire comprises a wire core layer 1, an outer cladding layer 2 and a copper-clad aluminum wire main body 3, wherein at least twenty-four copper-clad aluminum wire main bodies 3 are wound into one strand;
one strand of copper-clad aluminum wire main body 3 is a wire core layer 1, and at least five strands of outer cladding 2 are surrounded outside, wherein the outer cladding 2 is one strand of copper-clad aluminum wire main body 3;
and at least one layer, a shielding layer and an insulating layer are arranged outside each copper-clad aluminum wire main body 3.
A preparation method of a copper-clad aluminum wire stranded wire comprises the following steps:
s1, selecting an aluminum bar, preprocessing the aluminum bar, and coating copper strips outside the aluminum bar;
s2, carrying out drawing treatment, namely conveying the prepared copper-clad aluminum bar material to a drawing machine for drawing treatment, and carrying out drawing on the copper-clad aluminum bar material for a plurality of times by the drawing machine to form a copper-clad aluminum wire;
s3, detecting the surface of the copper-clad aluminum by using a flaw detection assembly;
s4, conveying the copper-clad aluminum wire to an annealing furnace for treatment, so that a copper layer wrapped on the outer side of the aluminum core is tightly attached to the aluminum core to form a copper-clad aluminum cable;
s5, preparing the obtained copper-clad aluminum wires into stranded wires, and twisting the prepared 24 aluminum-clad copper wires to form a stranded wire;
s6, a strand of stranded wires is used as a central line, stranded wires are continuously added outside the stranded wires, at least five strands of stranded wires are distributed in a surrounding mode, and the stranded wires are twisted and arranged mutually to form a plurality of strands of stranded wires.
And S1, preparing the copper-clad aluminum bar by using a copper-clad aluminum bar preparation furnace after the treatment is finished.
And S2, tightly coating the copper strip on the outer surface of the aluminum rod, and welding by utilizing laser welding, wherein the laser power is 220W-240W, and the laser scanning speed is 470-490mm/min.
And S3, the drawing tension is 55-75 MP, so that the diameter of the copper-clad aluminum wire meets the requirement.
The copper-clad aluminum cable is externally coated with a primer and a surface paint, wherein the primer is a polyester imide paint, the polyester imide paint comprises a Sier and an imide-containing dibasic acid, the mass ratio of the Sier to the imide-containing dibasic acid is 3-4:1, and the surface paint is formed by mixing a sliding substance with polyamide imide.
In S1, pretreatment comprises unreeling, drawing, lubricating, cutting, polishing and cleaning of an aluminum rod.
After the copper-clad aluminum wires are formed, the copper-clad aluminum wires are placed into a wrapping device to wrap the shielding layer and the insulating layer, the influence of an external electromagnetic field on a power supply or a communication line is reduced, the shielding layer is made of metallized paper or semiconductor paper, the outer layer is made of copper strips, the outer portion of each copper-clad aluminum wire is continuously wrapped, then the aluminum-clad copper wires wrapped with the shielding layer and the insulating layer are further straightened, and 24 copper-clad wires are selected to be a group to be placed for standby.
Twisting the prepared 24 aluminum-clad copper wires to form a stranded wire, providing a spinning shaft with the tail capable of being stuck to the aluminum-clad copper wires when twisting the aluminum-clad copper wires, combining the tail of the spinning shaft with one end of the aluminum-clad copper wire structure, and twisting the spinning shaft in a rotating manner to form a stranded wire, wherein the process of twisting the aluminum-clad copper wires comprises twisting the aluminum-clad copper wires in the stretching direction of the aluminum-clad copper wires; the method comprises the steps of placing strands formed by twisting 24 copper-clad aluminum wires on a new spinning shaft, taking one strand of the strands as a central line, continuously adding strands outside the strands, at least five strands of the strands, circumferentially distributing the strands, taking the strands in the middle as a wire core, taking the strands outside the strands as cladding wires, mutually arranging the strands in parallel or mutually twisting the strands to form a plurality of strands, obtaining the copper-clad aluminum wire cladding strands, taking the obtained copper-clad aluminum wire cladding strands out of equipment, and putting the copper-clad aluminum wire cladding strands into brushing equipment, and spraying the outer parts of the copper-clad aluminum wire cladding strands. Spraying a coating, namely uniformly spraying 3-5 layers of polyurethane, wherein the thickness of each layer is 0.3-1mm; drying at 40-50deg.C for 3-5 hr after spraying.
All technical features in the embodiment can be freely combined according to actual needs.
Finally, it should be noted that: the foregoing description is only illustrative of the preferred embodiments of the present invention, and although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements or changes may be made without departing from the spirit and principles of the present invention.
Claims (10)
1. The copper-clad aluminum wire coated stranded wire is characterized by comprising a wire core layer (1), an outer cladding layer (2) and a copper-clad aluminum wire main body (3), wherein at least twenty-four copper-clad aluminum wire main bodies (3) are wound into one strand;
one strand of copper-clad aluminum wire main body (3) is a wire core layer (1), at least five strands of outer cladding layers (2) are surrounded on the outside, and the outer cladding layers (2) are one strand of copper-clad aluminum wire main body (3);
and at least one layer, a shielding layer and an insulating layer are arranged outside each copper-clad aluminum wire main body (3).
2. A method for preparing a copper-clad aluminum wire stranded wire, which is used for the copper-clad aluminum wire stranded wire according to claim 1, and is characterized by comprising the following steps:
s1, selecting an aluminum bar, preprocessing the aluminum bar, and coating copper strips outside the aluminum bar;
s2, carrying out drawing treatment, namely conveying the prepared copper-clad aluminum bar material to a drawing machine for drawing treatment, and carrying out drawing on the copper-clad aluminum bar material for a plurality of times by the drawing machine to form a copper-clad aluminum wire;
s3, detecting the surface of the copper-clad aluminum by using a flaw detection assembly;
s4, conveying the copper-clad aluminum wire to an annealing furnace for treatment, so that a copper layer wrapped on the outer side of the aluminum core is tightly attached to the aluminum core to form a copper-clad aluminum cable;
s5, preparing the obtained copper-clad aluminum wires into stranded wires, and twisting the prepared 24 aluminum-clad copper wires to form a stranded wire;
s6, a strand of stranded wires is used as a central line, stranded wires are continuously added outside the stranded wires, at least five strands of stranded wires are distributed in a surrounding mode, and the stranded wires are twisted and arranged mutually to form a plurality of strands of stranded wires.
3. The method for manufacturing the copper-clad aluminum stranded wire according to claim 2, wherein in the step S1, the copper-clad aluminum rod is manufactured by using a copper-clad aluminum rod manufacturing furnace after the treatment is completed.
4. The method for manufacturing the copper-clad aluminum wire stranded wire according to claim 2, wherein in the step S2, the copper strip is tightly wrapped on the outer surface of the aluminum rod, welding is performed by utilizing laser welding, the laser power is 220W-240W, and the laser scanning speed is 470-490mm/min.
5. The method for manufacturing a copper-clad aluminum wire strand according to claim 2, wherein in S3, the drawing tension is 55 to 75MP, so that the diameter of the copper-clad aluminum wire strand meets the requirement.
6. The method for preparing the copper-clad aluminum wire stranded wire according to claim 2, wherein the copper-clad aluminum wire is externally coated with a primer and a surface paint, the primer is a polyester imide paint, the polyester imide paint comprises a Sier and an imide-containing diacid, the mass ratio of the Sier to the imide-containing diacid is 3-4:1, and the surface paint is formed by mixing a slidability substance with polyamide imide.
7. The method for manufacturing a copper-clad aluminum wire strand according to claim 2, wherein in S1, the pretreatment comprises unreeling, drawing, lubrication, cutting, polishing, and cleaning of an aluminum rod.
8. The method for preparing the copper-clad aluminum wire stranded wire according to claim 2, wherein after the copper-clad aluminum wire is formed, the copper-clad aluminum wire stranded wire is put into a wrapping device to wrap a shielding layer and an insulating layer, the influence of an external electromagnetic field on a power supply or a communication line is reduced, the shielding layer is made of metallized paper or semiconductor paper, the outer layer is made of copper strips, the outer part of the single copper-clad aluminum wire is continuously wrapped, then the aluminum-clad copper wire wrapped with the shielding layer and the insulating layer is further straightened, and 24 copper wires are selected for a group to be placed for standby.
9. The method of manufacturing a copper-clad aluminum wire twisted wire according to claim 2, wherein 24 aluminum-clad copper wires which have been manufactured are twisted to form a twisted wire, a spinning shaft is provided, a tail portion of which can be stuck to the aluminum-clad copper wire while twisting the aluminum-clad copper wires, the tail portion of the spinning shaft is combined with one end of the aluminum-clad copper wire structure, and the spinning shaft is twisted in a rotating manner to form a twisted wire, and the process of twisting the aluminum-clad copper wires includes twisting the aluminum-clad copper wires in a stretching direction of the aluminum-clad copper wires; the method comprises the steps of placing strands formed by twisting 24 copper-clad aluminum wires on a new spinning shaft, taking one strand of the strands as a central line, continuously adding strands outside the strands, at least five strands of the strands, circumferentially distributing the strands, taking the strands in the middle as a wire core, taking the strands outside the strands as cladding wires, mutually arranging the strands in parallel or mutually twisting the strands to form a plurality of strands, obtaining the copper-clad aluminum wire cladding strands, taking the obtained copper-clad aluminum wire cladding strands out of equipment, and putting the copper-clad aluminum wire cladding strands into brushing equipment, and spraying the outer parts of the copper-clad aluminum wire cladding strands.
10. The copper-clad aluminum wire coated stranded wire and the preparation method thereof according to claim 9, wherein the coating is sprayed with polyurethane, and 3-5 layers are uniformly sprayed, and each layer has a thickness of 0.3-1mm; drying at 40-50deg.C for 3-5 hr after spraying.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310411229.3A CN116364335A (en) | 2023-04-18 | 2023-04-18 | Copper-clad aluminum wire clad stranded wire and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310411229.3A CN116364335A (en) | 2023-04-18 | 2023-04-18 | Copper-clad aluminum wire clad stranded wire and preparation method thereof |
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| Publication Number | Publication Date |
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| CN116364335A true CN116364335A (en) | 2023-06-30 |
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| CN202310411229.3A Pending CN116364335A (en) | 2023-04-18 | 2023-04-18 | Copper-clad aluminum wire clad stranded wire and preparation method thereof |
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