CN113707372B - Flexible sliding type aluminum alloy cable for aerial crane and preparation method thereof - Google Patents
Flexible sliding type aluminum alloy cable for aerial crane and preparation method thereof Download PDFInfo
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- CN113707372B CN113707372B CN202110967032.9A CN202110967032A CN113707372B CN 113707372 B CN113707372 B CN 113707372B CN 202110967032 A CN202110967032 A CN 202110967032A CN 113707372 B CN113707372 B CN 113707372B
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- 229910000838 Al alloy Inorganic materials 0.000 title claims abstract description 93
- 238000002360 preparation method Methods 0.000 title claims abstract description 20
- 239000004020 conductor Substances 0.000 claims abstract description 99
- 239000000463 material Substances 0.000 claims abstract description 28
- 238000000137 annealing Methods 0.000 claims abstract description 24
- 239000000806 elastomer Substances 0.000 claims abstract description 19
- 229920001971 elastomer Polymers 0.000 claims abstract description 19
- 239000000945 filler Substances 0.000 claims abstract description 9
- 239000002994 raw material Substances 0.000 claims abstract description 9
- 238000000034 method Methods 0.000 claims abstract description 8
- 230000006835 compression Effects 0.000 claims abstract description 6
- 238000007906 compression Methods 0.000 claims abstract description 6
- 238000001125 extrusion Methods 0.000 claims abstract description 6
- 238000004519 manufacturing process Methods 0.000 claims abstract description 5
- 238000011049 filling Methods 0.000 claims description 9
- 239000011248 coating agent Substances 0.000 claims description 6
- 238000000576 coating method Methods 0.000 claims description 6
- 230000000704 physical effect Effects 0.000 claims description 6
- 229920006262 high density polyethylene film Polymers 0.000 claims description 3
- 238000005452 bending Methods 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 8
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 7
- 238000009413 insulation Methods 0.000 description 6
- 229910052802 copper Inorganic materials 0.000 description 5
- 239000010949 copper Substances 0.000 description 5
- 238000009434 installation Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 2
- 238000005056 compaction Methods 0.000 description 2
- 229910052761 rare earth metal Inorganic materials 0.000 description 2
- 150000002910 rare earth metals Chemical class 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229920001903 high density polyethylene Polymers 0.000 description 1
- 239000004700 high-density polyethylene Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/04—Flexible cables, conductors, or cords, e.g. trailing cables
- H01B7/041—Flexible cables, conductors, or cords, e.g. trailing cables attached to mobile objects, e.g. portable tools, elevators, mining equipment, hoisting cables
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
- C21D9/525—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length for wire, for rods
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/02—Making non-ferrous alloys by melting
- C22C1/026—Alloys based on aluminium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/04—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon
-
- 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
- H01B13/0292—After-treatment
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
- H01B13/06—Insulating conductors or cables
- H01B13/14—Insulating conductors or cables by extrusion
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
- H01B13/22—Sheathing; Armouring; Screening; Applying other protective layers
- H01B13/24—Sheathing; Armouring; Screening; Applying other protective layers by extrusion
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- 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
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/02—Disposition of insulation
-
- 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
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Insulated Conductors (AREA)
Abstract
The invention relates to the technical field of cable preparation, and discloses a flexible sliding aluminum alloy cable for aviation crane and a preparation method thereof, comprising the following steps: preparing ultra-fine aluminum alloy wires as conductor materials, and preparing elastomer materials as basic raw materials of a conductor insulating layer and an elastic outer sheath; twisting a plurality of extra-fine aluminum alloy wires into an extra-fine aluminum alloy wire flexible conductor in a layered compression mode; feeding the stranded soft conductors into a annealing furnace for annealing operation; the conductor insulating layer is tightly adhered and coated outside the ultra-thin aluminum alloy wire soft conductor through the extrusion die with special design, the wrapping layer is coated outside the ultra-thin aluminum alloy wire soft conductor, the filler is filled, and the elastic outer sheath layer is tightly adhered and coated outside the wrapping layer through the extrusion die with special design, so that the production and processing of the whole cable are completed. The cable prepared by the method has very good flexibility, repeated bending performance and fatigue resistance, is very suitable for repeated sliding aerial crane, is more convenient to install and move, and has high cost performance.
Description
Technical Field
The invention relates to the technical field of cable preparation, in particular to a flexible sliding aluminum alloy cable for an aerial crane and a preparation method thereof.
Background
A cable is an electrical energy or signal transmission device, typically consisting of several wires or groups of wires.
The current flexible cable for the aerial crane is mostly used by adopting a copper cable, but the copper cable has large weight, is inconvenient to install and move, has high production cost, and causes the increase of the use cost.
Disclosure of Invention
(one) solving the technical problems
Aiming at the defects of the prior art, the invention provides the flexible sliding aluminum alloy cable for the aviation crane and the preparation method thereof, which have the advantages of very good flexibility, repeated bending performance and fatigue resistance, very suitability for repeated sliding aviation crane use, much lighter weight, more convenient installation and movement compared with copper core cables and high cost performance, and solve the problems that the conventional flexible cable for the aviation crane mostly adopts copper cables for use, the copper cables are relatively heavy, inconvenient in installation and movement, high production cost, increased use cost and the like.
(II) technical scheme
In order to realize the purposes of having very good flexibility, repeated bending performance and fatigue resistance, being very suitable for repeated sliding aerial crane, the invention provides the following technical scheme: the flexible sliding type aluminum alloy cable for the aerial crane comprises a plurality of extra-fine aluminum alloy wire soft conductors, wherein a conductor insulating layer is fixedly coated on the outer sides of the extra-fine aluminum alloy wire soft conductors, a same wrapping layer is coated on the outer sides of the extra-fine aluminum alloy wire soft conductors, filling materials are filled between the wrapping layer and the extra-fine aluminum alloy wire soft conductors, and an elastic outer sheath is fixedly coated on the outer sides of the wrapping layer.
The preparation method of the flexible sliding aluminum alloy cable for the aerial crane comprises the following steps:
step one: preparing ultra-fine aluminum alloy wires as conductor materials, and preparing elastomer materials as basic raw materials of a conductor insulating layer and an elastic outer sheath;
step two: drawing and annealing the superfine aluminum alloy wire to obtain a high-performance superfine aluminum alloy wire raw material;
step three: twisting a plurality of extra-fine aluminum alloy wires into an extra-fine aluminum alloy wire flexible conductor in a layered compression mode;
step four: the twisted soft conductors are sent into a annealing furnace for annealing operation, so that the physical properties and the electrical properties of the aluminum alloy are greatly improved;
step five: mixing elastomer materials, extruding the mixture into a conductor insulating layer and an elastic outer sheath through an extruding machine by a specially designed die;
step six: and (3) adhering and coating the conductor insulating layer outside the ultra-thin aluminum alloy wire soft conductors, coating the wrapping layers outside the ultra-thin aluminum alloy wire soft conductors, filling filler into gaps between the multi-strand ultra-thin aluminum alloy wire soft conductors and the wrapping layers, adhering and coating the elastic outer sheath outside the wrapping layers, and thus completing the production and processing of the whole cable.
Preferably, the annealing temperature of the stranded soft conductors in the fourth step in an annealing furnace is kept between 300 and 350 ℃ and the soft conductors are kept for 6 to 8 hours.
Preferably, the filler is in particular an extruded rope filler layer sized for clearance calculation.
Preferably, a layer of high-density polyethylene film is adhered between the ultra-thin aluminum alloy wire soft conductor and the conductor insulating layer.
Preferably, the conductor insulation layer and the elastic outer sheath are extruded at 135-160 ℃ through a specially designed die.
Preferably, the conductor insulating layer and the elastic outer sheath are detected after extrusion molding, and the conductor insulating layer and the elastic outer sheath have tightness but are not adhered.
Preferably, the elastomer material is selected to ensure that the conductor insulation layer (2) and the elastic outer sheath (5) have good soft performance and low temperature resistance.
(III) beneficial effects
Compared with the prior art, the invention provides the flexible sliding aluminum alloy cable for the aviation crane and the preparation method thereof, and the flexible sliding aluminum alloy cable has the following beneficial effects:
1. the flexible sliding type aluminum alloy cable for the aerial crane and the preparation method thereof are characterized in that the cable consists of an extra-fine aluminum alloy wire flexible conductor, a conductor insulating layer, a filling material, a wrapping layer and an elastic outer sheath, wherein the conductor insulating layer and the elastic outer sheath have good flexibility and low temperature resistance, and the extra-fine aluminum alloy wire flexible conductor has good flexibility, repeated bending performance and fatigue resistance, is very suitable for repeated sliding aerial crane, and has much lighter weight, more convenient installation and movement and high cost performance compared with a copper core cable.
2. According to the flexible sliding type aluminum alloy cable for the aerial crane and the preparation method thereof, the extra-fine aluminum alloy wires are compacted and twisted into the flexible conductor in a layered manner, so that the special alloy formula and the processing technology of the flexible sliding type aluminum alloy cable for the aerial crane break through the use of the copper cable in a mobile occasion, the flexibility is greatly improved, the conductor adopts the extra-fine aluminum alloy wires to be compacted and twisted in a layered manner, the twisted conductor is subjected to annealing in an annealing furnace at the temperature of 300-350 ℃ for 6-8 hours, the good physical properties and electrical properties of the aluminum alloy are realized, the conductor insulating layer and the elastic outer sheath are extruded and formed at the temperature of 135-160 ℃ through a specially designed die, the insulation and the sheath have good compact performance, the good soft performance and the low temperature resistance, and the service strength and the service life of the whole cable can be effectively ensured.
Drawings
Fig. 1 is a schematic structural diagram of a flexible sliding aluminum alloy cable for an aerial crane;
fig. 2 is a schematic diagram of a layering compression standard of an extra-fine aluminum alloy wire soft conductor of the flexible sliding aluminum alloy cable for the aerial crane and a preparation method thereof;
FIG. 3 is a schematic diagram showing the comparison of physical and electrical properties of rare earth aluminum alloy conductors of the flexible sliding aluminum alloy cable for aviation crane and the preparation method thereof;
fig. 4 is a schematic diagram showing elastomer performance requirements of an elastomer material of the flexible sliding aluminum alloy cable for aviation crane and the preparation method thereof.
In the figure: 1 ultra-thin aluminum alloy wire soft conductor, 2 conductor insulating layer, 3 filler, 4 wrapping layer and 5 elastic outer sheath.
Detailed Description
The following description of the technical solutions in the embodiments of the present invention will be clear and complete, and it is obvious that the described embodiments 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.
Referring to fig. 1, a flexible sliding aluminum alloy cable for an aerial crane comprises a plurality of extra-fine aluminum alloy wire flexible conductors 1, wherein a conductor insulating layer 2 is fixedly coated on the outer sides of the extra-fine aluminum alloy wire flexible conductors 1, a same wrapping layer 4 is coated on the outer sides of the extra-fine aluminum alloy wire flexible conductors 1, filling materials 3 are filled between the wrapping layer 4 and the extra-fine aluminum alloy wire flexible conductors 1, and an elastic outer sheath 5 is fixedly coated on the outer sides of the wrapping layer 4.
The preparation method of the flexible sliding aluminum alloy cable for the aerial crane comprises the following steps:
step one: preparing ultra-fine aluminum alloy wires as conductor materials, and preparing elastomer materials as basic raw materials of the conductor insulating layer 2 and the elastic outer sheath 5;
step two: drawing and annealing the superfine aluminum alloy wire to obtain a high-performance superfine aluminum alloy wire raw material;
step three: twisting a plurality of extra-fine aluminum alloy wires into an extra-fine aluminum alloy wire flexible conductor 1 in a layered compression mode;
step four: the twisted soft conductors are sent into a annealing furnace for annealing operation, so that the physical properties and the electrical properties of the aluminum alloy are greatly improved;
step five: the elastomer materials are mixed and then extruded into the conductor insulating layer 2 and the elastic outer sheath 5 through a specially designed die by an extruder;
step six: the conductor insulating layer 2 is adhered and coated outside the ultra-thin aluminum alloy wire soft conductors 1, the wrapping layers 4 are coated outside the ultra-thin aluminum alloy wire soft conductors 1, filling materials 3 are filled in gaps between the multi-strand ultra-thin aluminum alloy wire soft conductors 1 and the wrapping layers 4, and the elastic outer sheath 5 is adhered and coated outside the wrapping layers 4, so that the whole cable is manufactured.
And fourthly, keeping the annealing temperature of the stranded soft conductors in an annealing furnace at 300-350 ℃ for 6-8 hours, and ensuring the annealing degree of the conductors.
The filler 3 is in particular an extruded rope filler layer dimensioned for clearance calculation.
A layer of high-density polyethylene film is adhered between the ultra-thin aluminum alloy wire soft conductor 1 and the conductor insulating layer 2, the high-density polyethylene has higher mechanical strength, temperature resistance and dielectric strength, can well block water vapor and gas, has better protective effect on the ultra-thin aluminum alloy wire soft conductor, and ensures the service life of the ultra-thin aluminum alloy wire soft conductor.
The conductor insulation layer 2 and the elastic outer sheath 5 are extruded at 135-160 ℃ through a specially designed die.
The conductor insulation layer 2 and the elastic outer jacket 5 are tested after extrusion molding, and have good tightness but are not adhered.
The choice of elastomer material is required to ensure that the conductor insulation layer 2 and the elastic outer sheath 5 have good soft performance and low temperature resistance, and detailed requirements can be seen from the schematic diagram of the elastomer performance requirements of the elastomer material in fig. 4.
Referring to fig. 2, fig. 2 is a schematic diagram of a standard layering compaction of extra-fine aluminum alloy wire soft conductors of the flexible sliding aluminum alloy cable for aviation crane and the preparation method thereof, wherein the prepared extra-fine aluminum alloy wire soft conductors meet the requirements of a nominal section shown in fig. 2 and a maximum diameter of a single wire in the conductors after layering compaction;
referring to fig. 3, fig. 3 is a schematic diagram showing comparison of physical and electrical properties of a rare earth aluminum alloy conductor according to the preparation method of a flexible sliding aluminum alloy cable for aviation crane provided by the invention, wherein the twisted conductor is annealed in an annealing furnace to satisfy the physical properties shown in fig. 3;
referring to fig. 4, fig. 4 is a schematic diagram showing the elastomer performance requirement of the elastomer material of the preparation method of the flexible sliding aluminum alloy cable for aviation crane according to the present invention, and the elastomer material is selected to satisfy the relevant data information shown in fig. 4.
In summary, according to the flexible sliding aluminum alloy cable for the aerial crane and the preparation method thereof, ultra-thin aluminum alloy wires are prepared as conductor materials, and elastomer materials are prepared as basic raw materials of the conductor insulating layer 2 and the elastic outer sheath 5; drawing and annealing the superfine aluminum alloy wire to obtain a high-performance superfine aluminum alloy wire raw material; twisting a plurality of extra-fine aluminum alloy wires into an extra-fine aluminum alloy wire flexible conductor 1 in a layered compression mode; the twisted soft conductors are sent into a annealing furnace for annealing operation, so that the physical properties and the electrical properties of the aluminum alloy are greatly improved; the elastomer materials are mixed and then extruded into the conductor insulating layer 2 and the elastic outer sheath 5 through a specially designed die by an extruder; the conductor insulating layer 2 is adhered and coated outside the ultra-thin aluminum alloy wire soft conductors 1, the wrapping layers 4 are coated outside the ultra-thin aluminum alloy wire soft conductors 1, filling materials 3 are filled in gaps between the multi-strand ultra-thin aluminum alloy wire soft conductors 1 and the wrapping layers 4, and the elastic outer sheath 5 is adhered and coated outside the wrapping layers 4, so that the whole cable is manufactured.
It should be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (1)
1. The utility model provides a flexible slidingtype aluminum alloy cable for aerial crane, includes many extra-thin aluminum alloy wire flexible conductor (1), its characterized in that: the outer sides of the extra-fine aluminum alloy wire soft conductors (1) are fixedly coated with a conductor insulating layer (2), a plurality of extra-fine aluminum alloy wire soft conductors (1) are externally coated with a same wrapping layer (4), filling materials (3) are filled between the wrapping layer (4) and the extra-fine aluminum alloy wire soft conductors (1), and the outer sides of the wrapping layers (4) are fixedly coated with a layer of elastic outer sheath (5);
the preparation method of the flexible sliding aluminum alloy cable for the aerial crane comprises the following steps: the method comprises the following steps: step one: preparing ultra-thin aluminum alloy wires as conductor materials, and preparing elastomer materials as basic raw materials of a conductor insulating layer (2) and an elastic outer sheath (5); step two: drawing and annealing the superfine aluminum alloy wire to obtain a high-performance superfine aluminum alloy wire raw material; step three: twisting a plurality of extra-fine aluminum alloy wires into an extra-fine aluminum alloy wire flexible conductor (1) in a layered compression mode; step four: the twisted soft conductors are sent into a annealing furnace for annealing operation, so that the physical properties and the electrical properties of the aluminum alloy are greatly improved; step five: the elastomer materials are mixed and then extruded into a conductor insulating layer (2) and an elastic outer sheath (5) through a specially designed die by an extruder; step six: adhering and coating a conductor insulating layer (2) outside the ultra-thin aluminum alloy wire soft conductors (1), coating a wrapping layer (4) outside a plurality of ultra-thin aluminum alloy wire soft conductors (1), filling a filling material (3) into gaps between a plurality of ultra-thin aluminum alloy wire soft conductors (1) and the wrapping layer (4), adhering and coating an elastic outer sheath (5) outside the wrapping layer (4), and completing the production and processing of the whole cable;
the annealing temperature of the stranded soft conductors in the fourth step in an annealing furnace is kept between 300 and 350 ℃, and the soft conductors are kept for 6 to 8 hours;
the filler (3) is specifically an extrusion molding rope filler layer with a size calculated according to the clearance;
a layer of high-density polyethylene film is adhered between the ultra-thin aluminum alloy wire soft conductor (1) and the conductor insulating layer (2);
the conductor insulating layer (2) and the elastic outer sheath (5) are extruded and formed through a specially designed die at 135-160 ℃;
the conductor insulating layer (2) and the elastic outer sheath (5) are detected after extrusion molding, so that tightness between the insulating layer (2) and the elastic outer sheath (5) is ensured, but adhesion is avoided;
the elastomer material is selected to ensure that the conductor insulating layer (2) and the elastic outer sheath (5) have good soft performance and low temperature resistance.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110967032.9A CN113707372B (en) | 2021-08-23 | 2021-08-23 | Flexible sliding type aluminum alloy cable for aerial crane and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110967032.9A CN113707372B (en) | 2021-08-23 | 2021-08-23 | Flexible sliding type aluminum alloy cable for aerial crane and preparation method thereof |
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| CN113707372A CN113707372A (en) | 2021-11-26 |
| CN113707372B true CN113707372B (en) | 2024-01-23 |
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Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2019207811A (en) * | 2018-05-30 | 2019-12-05 | 矢崎総業株式会社 | Insulation wire |
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2021
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| CN113707372A (en) | 2021-11-26 |
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