CN113096845A - Heat-resistant rare earth aluminum alloy conductor for power cable and processing technology thereof - Google Patents
Heat-resistant rare earth aluminum alloy conductor for power cable and processing technology thereof Download PDFInfo
- Publication number
- CN113096845A CN113096845A CN202110264824.XA CN202110264824A CN113096845A CN 113096845 A CN113096845 A CN 113096845A CN 202110264824 A CN202110264824 A CN 202110264824A CN 113096845 A CN113096845 A CN 113096845A
- Authority
- CN
- China
- Prior art keywords
- aluminum
- fixedly connected
- aluminum alloy
- heat
- wall fixedly
- 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
- 229910000838 Al alloy Inorganic materials 0.000 title claims abstract description 45
- 239000004020 conductor Substances 0.000 title claims abstract description 43
- 229910052761 rare earth metal Inorganic materials 0.000 title claims abstract description 19
- 150000002910 rare earth metals Chemical class 0.000 title claims abstract description 19
- 238000005516 engineering process Methods 0.000 title claims abstract description 15
- 239000000463 material Substances 0.000 claims abstract description 25
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 64
- 229910052782 aluminium Inorganic materials 0.000 claims description 64
- 238000000137 annealing Methods 0.000 claims description 35
- 239000007788 liquid Substances 0.000 claims description 35
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 30
- 238000007670 refining Methods 0.000 claims description 28
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 15
- 229910052802 copper Inorganic materials 0.000 claims description 15
- 239000010949 copper Substances 0.000 claims description 15
- 229910052742 iron Inorganic materials 0.000 claims description 15
- 229910052710 silicon Inorganic materials 0.000 claims description 15
- 239000010703 silicon Substances 0.000 claims description 15
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 claims description 14
- 238000002844 melting Methods 0.000 claims description 14
- 230000008018 melting Effects 0.000 claims description 14
- 238000003825 pressing Methods 0.000 claims description 14
- 229910052727 yttrium Inorganic materials 0.000 claims description 14
- VWQVUPCCIRVNHF-UHFFFAOYSA-N yttrium atom Chemical compound [Y] VWQVUPCCIRVNHF-UHFFFAOYSA-N 0.000 claims description 14
- 229910052726 zirconium Inorganic materials 0.000 claims description 14
- 230000032683 aging Effects 0.000 claims description 7
- 238000005266 casting Methods 0.000 claims description 7
- 239000003795 chemical substances by application Substances 0.000 claims description 7
- 150000001875 compounds Chemical class 0.000 claims description 7
- 238000001816 cooling Methods 0.000 claims description 7
- 229920003020 cross-linked polyethylene Polymers 0.000 claims description 7
- 239000004703 cross-linked polyethylene Substances 0.000 claims description 7
- 238000007872 degassing Methods 0.000 claims description 7
- 238000001125 extrusion Methods 0.000 claims description 7
- 238000010438 heat treatment Methods 0.000 claims description 7
- 238000001746 injection moulding Methods 0.000 claims description 7
- 238000002156 mixing Methods 0.000 claims description 7
- 229920003023 plastic Polymers 0.000 claims description 7
- 239000004033 plastic Substances 0.000 claims description 7
- 239000002893 slag Substances 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- 239000010410 layer Substances 0.000 abstract 6
- 239000011241 protective layer Substances 0.000 abstract 2
- 230000007547 defect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009422 external insulation Methods 0.000 description 1
- 230000009970 fire resistant effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 210000002268 wool Anatomy 0.000 description 1
Images
Classifications
-
- 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
- H01B1/00—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
- H01B1/02—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors mainly consisting of metals or alloys
- H01B1/023—Alloys based on aluminium
-
- 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
- H01B7/29—Protection against damage caused by extremes of temperature or by flame
- H01B7/292—Protection against damage caused by extremes of temperature or by flame using material resistant to heat
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B9/00—Power cables
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Conductive Materials (AREA)
Abstract
The invention discloses a heat-resistant rare earth aluminum alloy conductor for a power cable, which comprises an outer protective layer, wherein the inner wall of the outer protective layer is fixedly connected with an armor layer, the inner wall of the armor layer is fixedly connected with an inner liner, the inner wall of the inner liner is fixedly connected with a wrapping tape, the inner wall of the wrapping tape is fixedly connected with a filling layer, the inner wall of the filling layer is fixedly connected with an insulating layer, and the inner wall of the insulating layer is fixedly connected with an aluminum alloy conductor. The heat-resistant rare earth aluminum alloy conductor prepared by the processing technology is compatible with two conductor characteristics of 8030 and 8A07 at the same time, so that the heat-resistant rare earth aluminum alloy conductor can be used in a power cable, has the flexibility of 8030 rod materials and the heat resistance of 8A07, the conductor resistivity at 20 ℃ is not more than 29.73n omega.m, the tensile strength is 110-.
Description
Technical Field
The invention belongs to the technical field of power cables, and particularly relates to a heat-resistant rare earth aluminum alloy conductor for a power cable and a processing technology thereof.
Background
A cable is an electrical energy or signal transmission device, typically a rope-like cable made up of several or groups of conductors (at least two in each group) twisted together, each group being insulated from the other and often twisted around a center, the entire outer surface being covered with a highly insulating covering. The cable has the characteristics of internal electrification and external insulation, and is a conducting wire for transmitting power or information from one place to another place, and the cable comprises a power cable, a control cable, a compensation cable, a shielding cable, a high-temperature cable, a computer cable, a signal cable, a coaxial cable, a fire-resistant cable, a marine cable, a mining cable, an aluminum alloy cable and the like. They are composed of single or multi-strand wires and insulating layers, and are used for connecting circuits, electric appliances and the like.
However, the conventional cable has the following problems in use:
because the 8030 aluminum alloy conductor used in the power cable in the current national standard does not have heat resistance, the conductor 8A07 with heat resistance is generally used in an overhead conductor, and the cable is easily damaged after the temperature of the conductor is increased in the using process of the cable, so that the service life of the cable is influenced.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide the heat-resistant rare earth aluminum alloy conductor for the power cable and the processing technology thereof, and the heat-resistant rare earth aluminum alloy conductor has the advantage of good heat-resistant effect.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a heat-resisting tombarthite aluminum alloy conductor for power cable, includes the outer jacket, the inner wall fixedly connected with armor of outer jacket, the inner wall fixedly connected with inner liner of armor, the inner wall fixedly connected with band of inner liner, the inner wall fixedly connected with filling layer in band, the inner wall fixedly connected with insulating layer of filling layer, the inner wall fixedly connected with aluminum alloy conductor of insulating layer.
A processing technology of a heat-resistant rare earth aluminum alloy conductor for a power cable comprises the following steps:
1): selecting materials: silicon: less than or equal to 0.08; iron: 0.2-0.6; copper: less than or equal to 0.03; zirconium: 0.01-0.5; yttrium: 0.01-0.5; an aluminum ingot having an aluminum content of 99.5% or more;
2): mixing materials: putting an aluminum ingot into a melting furnace, controlling the temperature to be 760-800 ℃, after the aluminum ingot is completely melted, putting the silicon, the iron, the copper, the zirconium and the yttrium selected in the step 1) into the melting furnace, controlling the temperature to be 760-800 ℃, keeping for 30-40 minutes, obtaining a molten liquid after the materials are completely melted, and keeping the temperature for later use;
3): preparing an aluminum rod: putting the molten liquid obtained in the step 2) into a refining furnace, heating the molten liquid by the refining furnace, keeping the temperature at 760-800 ℃, preserving the heat of the molten liquid for 30 minutes, adding an aluminum alloy refining agent into the refining furnace, removing slag and degassing, and casting the molten liquid into an aluminum rod;
4) drawing: drawing the aluminum rod prepared in the step 3) by using a drawing machine to prepare an aluminum wire;
5) stranding: performing concentric compound twisting on five aluminum wires prepared in the step 4) to form a conductive wire core, and pressing the conductive wire by using a pressing machine;
6) aging annealing: putting the conductive wire core prepared in the step 5) into an annealing furnace for annealing, wherein the annealing temperature is controlled at 270-300 ℃ and the annealing time is controlled at 240-360 minutes;
7) extrusion molding of an insulating layer: injection molding crosslinked polyethylene to form an insulating layer, and cooling in cold water;
8) armoring;
9) outer sheath: the plastic sheath is directly extruded by an extruding machine according to different requirements of the cable.
Compared with the prior art, the invention has the beneficial effects that:
1. the heat-resistant rare earth aluminum alloy conductor prepared by the processing technology is compatible with two conductor characteristics of 8030 and 8A07 at the same time, so that the heat-resistant rare earth aluminum alloy conductor can be used in a power cable, has the flexibility of 8030 rod materials and the heat resistance of 8A07, the conductor resistivity at 20 ℃ is not more than 29.73n omega.m, the tensile strength is 110-145MPa, and the elongation is not less than 6%.
2. By adding elements such as silicon, iron and copper into the aluminum ingot wool, the use performance of the aluminum alloy conductor is improved, and the use effect of the cable is better.
3. The heat-resistant rare earth aluminum alloy prepared by the processing technology overcomes the defects that the common aluminum alloy cable is not heat-resistant, the current-carrying capacity is reduced due to the temperature rise and the like, and adopts a self-crosslinking material in the aspect of materials, so that the cost is reduced, the pollution is reduced, and the energy is saved.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
In the figure: 1. an outer jacket; 2. an armor layer; 3. an inner liner layer; 4. wrapping belts; 5. a filling layer; 6. an insulating layer; 7. an aluminum alloy conductor.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The first embodiment is as follows:
referring to fig. 1, the present invention provides a technical solution: the utility model provides a heat-resisting tombarthite aluminum alloy conductor for power cable, includes outer jacket 1, and outer jacket 1's inner wall fixedly connected with armor 2, the inner wall fixedly connected with inner liner 3 of armor 2, inner wall fixedly connected with band 4 of inner liner 3, the inner wall fixedly connected with filling layer 5 of band 4, the inner wall fixedly connected with insulating layer 6 of filling layer 5, the inner wall fixedly connected with aluminum alloy conductor 7 of insulating layer 6.
A processing technology of a heat-resistant rare earth aluminum alloy conductor for a power cable comprises the following steps:
1): selecting materials: silicon: 0.08; iron: 0.6; copper: 0.03; zirconium: 0.5; yttrium: 0.5; an aluminum ingot having an aluminum content of 99.5% or more;
2): mixing materials: putting an aluminum ingot into a melting furnace, controlling the temperature at 800 ℃, after the aluminum ingot is completely melted, putting the silicon, the iron, the copper, the zirconium and the yttrium selected in the step 1) into the melting furnace, controlling the temperature at 800 ℃, keeping for 30 minutes, obtaining a molten liquid after the materials are completely melted, and preserving heat for later use;
3): preparing an aluminum rod: putting the molten liquid obtained in the step 2) into a refining furnace, heating the molten liquid by the refining furnace, keeping the temperature at 800 ℃, preserving the temperature of the molten liquid for 30 minutes, adding an aluminum alloy refining agent into the refining furnace, removing slag, degassing, and casting the molten liquid into an aluminum rod;
4) drawing: drawing the aluminum rod prepared in the step 3) by using a drawing machine to prepare an aluminum wire;
5) stranding: performing concentric compound twisting on five aluminum wires prepared in the step 4) to form a conductive wire core, and pressing the conductive wire by using a pressing machine;
6) aging annealing: putting the conductive wire core prepared in the step 5) into an annealing furnace for annealing, wherein the annealing temperature is controlled at 290 ℃, and the annealing time is 360 minutes;
7) extrusion molding of an insulating layer: injection molding crosslinked polyethylene to form an insulating layer, and cooling in cold water;
8) armoring;
9) outer sheath: the plastic sheath is directly extruded by an extruding machine according to different requirements of the cable.
Example two:
the invention provides a technical scheme that: the utility model provides a heat-resisting tombarthite aluminum alloy conductor for power cable, includes outer jacket 1, and outer jacket 1's inner wall fixedly connected with armor 2, the inner wall fixedly connected with inner liner 3 of armor 2, inner wall fixedly connected with band 4 of inner liner 3, the inner wall fixedly connected with filling layer 5 of band 4, the inner wall fixedly connected with insulating layer 6 of filling layer 5, the inner wall fixedly connected with aluminum alloy conductor 7 of insulating layer 6.
A processing technology of a heat-resistant rare earth aluminum alloy conductor for a power cable comprises the following steps:
1): selecting materials: silicon: 0.07; iron: 0.5; copper: 0.03; zirconium: 0.5; yttrium: 0.5; an aluminum ingot having an aluminum content of 99.5% or more;
2): mixing materials: putting an aluminum ingot into a melting furnace, controlling the temperature to be 790 ℃, after the aluminum ingot is completely melted, putting the silicon, the iron, the copper, the zirconium and the yttrium selected in the step 1) into the melting furnace, controlling the temperature to be 790 ℃, keeping for 35 minutes, obtaining a molten liquid after the materials are completely melted, and preserving heat for later use;
3): preparing an aluminum rod: putting the molten liquid in the step 2) into a refining furnace, heating the molten liquid by the refining furnace, keeping the temperature at 790 ℃, preserving the temperature of the molten liquid for 30 minutes, adding an aluminum alloy refining agent into the refining furnace, removing slag, degassing, and casting the molten liquid into an aluminum rod;
4) drawing: drawing the aluminum rod prepared in the step 3) by using a drawing machine to prepare an aluminum wire;
5) stranding: performing concentric compound twisting on five aluminum wires prepared in the step 4) to form a conductive wire core, and pressing the conductive wire by using a pressing machine;
6) aging annealing: putting the conductive wire core prepared in the step 5) into an annealing furnace for annealing, wherein the annealing temperature is controlled at 280 ℃ and the annealing time is 300 minutes;
7) extrusion molding of an insulating layer: injection molding crosslinked polyethylene to form an insulating layer, and cooling in cold water;
8) armoring;
9) outer sheath: the plastic sheath is directly extruded by an extruding machine according to different requirements of the cable.
Example three:
the invention provides a technical scheme that: the utility model provides a heat-resisting tombarthite aluminum alloy conductor for power cable, includes outer jacket 1, and outer jacket 1's inner wall fixedly connected with armor 2, the inner wall fixedly connected with inner liner 3 of armor 2, inner wall fixedly connected with band 4 of inner liner 3, the inner wall fixedly connected with filling layer 5 of band 4, the inner wall fixedly connected with insulating layer 6 of filling layer 5, the inner wall fixedly connected with aluminum alloy conductor 7 of insulating layer 6.
A processing technology of a heat-resistant rare earth aluminum alloy conductor for a power cable comprises the following steps:
1): selecting materials: silicon: 0.06; iron: 0.5; copper: 0.02; zirconium: 0.4; yttrium: 0.4; an aluminum ingot having an aluminum content of 99.5% or more;
2): mixing materials: putting an aluminum ingot into a melting furnace, controlling the temperature to be 780 ℃, after the aluminum ingot is completely melted, putting the silicon, the iron, the copper, the zirconium and the yttrium selected in the step 1) into the melting furnace, controlling the temperature to be 790 ℃, keeping for 35 minutes, obtaining a molten liquid after the materials are completely melted, and preserving heat for later use;
3): preparing an aluminum rod: putting the molten liquid obtained in the step 2) into a refining furnace, heating the molten liquid by the refining furnace, keeping the temperature at 780 ℃, preserving the heat of the molten liquid for 30 minutes, adding an aluminum alloy refining agent into the refining furnace, removing slag, degassing, and casting the molten liquid into an aluminum rod;
4) drawing: drawing the aluminum rod prepared in the step 3) by using a drawing machine to prepare an aluminum wire;
5) stranding: performing concentric compound twisting on five aluminum wires prepared in the step 4) to form a conductive wire core, and pressing the conductive wire by using a pressing machine;
6) aging annealing: putting the conductive wire core prepared in the step 5) into an annealing furnace for annealing, wherein the annealing temperature is controlled at 295 ℃, and the annealing time is 360 minutes;
7) extrusion molding of an insulating layer: injection molding crosslinked polyethylene to form an insulating layer, and cooling in cold water;
8) armoring;
9) outer sheath: the plastic sheath is directly extruded by an extruding machine according to different requirements of the cable.
Example four:
the invention provides a technical scheme that: the utility model provides a heat-resisting tombarthite aluminum alloy conductor for power cable, includes outer jacket 1, and outer jacket 1's inner wall fixedly connected with armor 2, the inner wall fixedly connected with inner liner 3 of armor 2, inner wall fixedly connected with band 4 of inner liner 3, the inner wall fixedly connected with filling layer 5 of band 4, the inner wall fixedly connected with insulating layer 6 of filling layer 5, the inner wall fixedly connected with aluminum alloy conductor 7 of insulating layer 6.
A processing technology of a heat-resistant rare earth aluminum alloy conductor for a power cable comprises the following steps:
1): selecting materials: silicon: 0.04; iron: 0.3; copper: 0.02; zirconium: 0.3; yttrium: 0.3; an aluminum ingot having an aluminum content of 99.5% or more;
2): mixing materials: putting an aluminum ingot into a melting furnace, controlling the temperature at 770 ℃, after the aluminum ingot is completely melted, putting the silicon, the iron, the copper, the zirconium and the yttrium selected in the step 1) into the melting furnace, controlling the temperature at 780 ℃, keeping for 35 minutes, and after materials are completely melted, obtaining a molten liquid, and preserving heat for later use;
3): preparing an aluminum rod: putting the molten liquid in the step 2) into a refining furnace, heating the molten liquid by the refining furnace, keeping the temperature at 770 ℃, preserving the heat of the molten liquid for 30 minutes, adding an aluminum alloy refining agent into the refining furnace, removing slag, degassing, and casting the molten liquid into an aluminum rod;
4) drawing: drawing the aluminum rod prepared in the step 3) by using a drawing machine to prepare an aluminum wire;
5) stranding: performing concentric compound twisting on five aluminum wires prepared in the step 4) to form a conductive wire core, and pressing the conductive wire by using a pressing machine;
6) aging annealing: putting the conductive wire core prepared in the step 5) into an annealing furnace for annealing, wherein the annealing temperature is controlled at 275 ℃ and the annealing time is 360 minutes;
7) extrusion molding of an insulating layer: injection molding crosslinked polyethylene to form an insulating layer, and cooling in cold water;
8) armoring;
9) outer sheath: the plastic sheath is directly extruded by an extruding machine according to different requirements of the cable.
Example five:
the invention provides a technical scheme that: the utility model provides a heat-resisting tombarthite aluminum alloy conductor for power cable, includes outer jacket 1, and outer jacket 1's inner wall fixedly connected with armor 2, the inner wall fixedly connected with inner liner 3 of armor 2, inner wall fixedly connected with band 4 of inner liner 3, the inner wall fixedly connected with filling layer 5 of band 4, the inner wall fixedly connected with insulating layer 6 of filling layer 5, the inner wall fixedly connected with aluminum alloy conductor 7 of insulating layer 6.
A processing technology of a heat-resistant rare earth aluminum alloy conductor for a power cable comprises the following steps:
1): selecting materials: silicon: 0.03; iron: 0.2; copper: 0.01; zirconium: 0.1; yttrium: 0.1; an aluminum ingot having an aluminum content of 99.5% or more;
2): mixing materials: putting an aluminum ingot into a melting furnace, controlling the temperature at 760 ℃, after the aluminum ingot is completely melted, putting the silicon, the iron, the copper, the zirconium and the yttrium selected in the step 1) into the melting furnace, controlling the temperature at 760 ℃, keeping for 40 minutes, and after the materials are completely melted, obtaining a molten liquid, and preserving heat for later use;
3): preparing an aluminum rod: putting the molten liquid in the step 2) into a refining furnace, heating the molten liquid by the refining furnace, keeping the temperature at 760 ℃, preserving the temperature of the molten liquid for 30 minutes, adding an aluminum alloy refining agent into the refining furnace, removing slag, degassing, and casting the molten liquid into an aluminum rod;
4) drawing: drawing the aluminum rod prepared in the step 3) by using a drawing machine to prepare an aluminum wire;
5) stranding: performing concentric compound twisting on five aluminum wires prepared in the step 4) to form a conductive wire core, and pressing the conductive wire by using a pressing machine;
6) aging annealing: putting the conductive wire core prepared in the step 5) into an annealing furnace for annealing, wherein the annealing temperature is controlled at 280 ℃ and the annealing time is 300 minutes;
7) extrusion molding of an insulating layer: injection molding crosslinked polyethylene to form an insulating layer, and cooling in cold water;
8) armoring;
9) outer sheath: the plastic sheath is directly extruded by an extruding machine according to different requirements of the cable.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (2)
1. The utility model provides a heat-resisting rare earth aluminum alloy conductor for power cable, includes outer jacket (1), its characterized in that: the inner wall fixedly connected with armor (2) of outer jacket (1), the inner wall fixedly connected with inner liner (3) of armor (2), the inner wall fixedly connected with band (4) of inner liner (3), the inner wall fixedly connected with filling layer (5) of band (4), the inner wall fixedly connected with insulating layer (6) of filling layer (5), the inner wall fixedly connected with aluminum alloy conductor (7) of insulating layer (6).
2. The processing technology of the heat-resistant rare earth aluminum alloy conductor for the power cable according to claim 1, characterized in that: the processing technology comprises the following steps:
1): selecting materials: silicon: less than or equal to 0.08; iron: 0.2-0.6; copper: less than or equal to 0.03; zirconium: 0.01-0.5; yttrium: 0.01-0.5; an aluminum ingot having an aluminum content of 99.5% or more;
2): mixing materials: putting an aluminum ingot into a melting furnace, controlling the temperature to be 760-800 ℃, after the aluminum ingot is completely melted, putting the silicon, the iron, the copper, the zirconium and the yttrium selected in the step 1) into the melting furnace, controlling the temperature to be 760-800 ℃, keeping for 30-40 minutes, obtaining a molten liquid after the materials are completely melted, and keeping the temperature for later use;
3): preparing an aluminum rod: putting the molten liquid obtained in the step 2) into a refining furnace, heating the molten liquid by the refining furnace, keeping the temperature at 760-800 ℃, preserving the heat of the molten liquid for 30 minutes, adding an aluminum alloy refining agent into the refining furnace, removing slag and degassing, and casting the molten liquid into an aluminum rod;
4) drawing: drawing the aluminum rod prepared in the step 3) by using a drawing machine to prepare an aluminum wire;
5) stranding: performing concentric compound twisting on five aluminum wires prepared in the step 4) to form a conductive wire core, and pressing the conductive wire by using a pressing machine;
6) aging annealing: putting the conductive wire core prepared in the step 5) into an annealing furnace for annealing, wherein the annealing temperature is controlled at 270-300 ℃ and the annealing time is controlled at 240-360 minutes;
7) extrusion molding of an insulating layer: injection molding crosslinked polyethylene to form an insulating layer, and cooling in cold water;
8) armoring;
9) outer sheath: the plastic sheath is directly extruded by an extruding machine according to different requirements of the cable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110264824.XA CN113096845A (en) | 2021-03-11 | 2021-03-11 | Heat-resistant rare earth aluminum alloy conductor for power cable and processing technology thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110264824.XA CN113096845A (en) | 2021-03-11 | 2021-03-11 | Heat-resistant rare earth aluminum alloy conductor for power cable and processing technology thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113096845A true CN113096845A (en) | 2021-07-09 |
Family
ID=76667803
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110264824.XA Pending CN113096845A (en) | 2021-03-11 | 2021-03-11 | Heat-resistant rare earth aluminum alloy conductor for power cable and processing technology thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113096845A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113689970A (en) * | 2021-08-23 | 2021-11-23 | 安徽中青欣意铝合金电缆有限公司 | Anti-bending aluminum alloy cable for charging electric automobile and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103474153A (en) * | 2013-08-07 | 2013-12-25 | 武汉宏联电线电缆有限公司 | Rare earth aluminum alloy power cable and production technology thereof |
| CN106297990A (en) * | 2016-09-29 | 2017-01-04 | 山东华东线缆集团有限公司 | Aluminium alloy conductor flexibility resist bending fireproof cable |
| CN111816353A (en) * | 2020-07-24 | 2020-10-23 | 广东欣意电缆有限公司 | Rare earth high-iron aluminum alloy cable and preparation method thereof |
-
2021
- 2021-03-11 CN CN202110264824.XA patent/CN113096845A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103474153A (en) * | 2013-08-07 | 2013-12-25 | 武汉宏联电线电缆有限公司 | Rare earth aluminum alloy power cable and production technology thereof |
| CN106297990A (en) * | 2016-09-29 | 2017-01-04 | 山东华东线缆集团有限公司 | Aluminium alloy conductor flexibility resist bending fireproof cable |
| CN111816353A (en) * | 2020-07-24 | 2020-10-23 | 广东欣意电缆有限公司 | Rare earth high-iron aluminum alloy cable and preparation method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113689970A (en) * | 2021-08-23 | 2021-11-23 | 安徽中青欣意铝合金电缆有限公司 | Anti-bending aluminum alloy cable for charging electric automobile and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101807453A (en) | Power cable for seabed | |
| CN203433879U (en) | Scandium-contained aluminium alloy conductor-based medium-voltage power cable | |
| CN201725627U (en) | Undersea power cable | |
| CN113096845A (en) | Heat-resistant rare earth aluminum alloy conductor for power cable and processing technology thereof | |
| CN114203333A (en) | High-conductivity high-strength rare earth alloy overhead insulated cable and preparation method thereof | |
| WO2022048012A1 (en) | Lightweight corrosion-resistant energy-saving aluminium conductor, preparation method therefor, and medium-voltage power cable | |
| CN203433880U (en) | Scandium-contained aluminium alloy conductor-based medium-voltage flame-retardant power cable | |
| CN209343814U (en) | A kind of high-power liquid cooling cable of highly-flexible immersion type | |
| CN204480707U (en) | A kind of copper moulds nickel strap armouring second propylene sheath motor jump lead | |
| CN203433883U (en) | Low-voltage fireproof scandium aluminum alloy conductor power cable | |
| CN214671878U (en) | Single crystal copper conductor low smoke zero halogen flame retardant polyolefin insulation double-layer shielding cable | |
| CN109741864A (en) | A kind of high-power liquid cooling cable of highly-flexible immersion type | |
| CN114649110A (en) | Preparation method of insulated cable with fireproof function | |
| CN203433881U (en) | Scandium-contained aluminium alloy conductor-based low-voltage power cable | |
| CN203433882U (en) | Scandium-contained aluminium alloy conductor-based low-voltage flame-retardant power cable | |
| CN110570983A (en) | high-temperature-resistant aerial insulated cable and preparation method thereof | |
| CN217880932U (en) | Novel intermediate frequency low-voltage cable | |
| CN212209012U (en) | Rare earth high-iron aluminum alloy fireproof cable | |
| CN220252884U (en) | Heat-resistant oil-resistant cable | |
| CN218004471U (en) | Charging wire for electric automobile | |
| CN219040105U (en) | Liquid cooling charging cable for electric automobile | |
| CN201812528U (en) | Insulating high-temperature-resistant fluoroplastic cable | |
| CN218730038U (en) | Full-water-blocking compression-resistant cable | |
| CN214333355U (en) | Totally enclosed ferronickel is short net system of low energy consumption for ore furnace | |
| CN217880958U (en) | Controllable load light power cable for ship |
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: 20210709 |
|
| RJ01 | Rejection of invention patent application after publication |