CN112863764A - Power line processing technology for improving performance stability - Google Patents
Power line processing technology for improving performance stability Download PDFInfo
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- CN112863764A CN112863764A CN202011624863.8A CN202011624863A CN112863764A CN 112863764 A CN112863764 A CN 112863764A CN 202011624863 A CN202011624863 A CN 202011624863A CN 112863764 A CN112863764 A CN 112863764A
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- parts
- insulating layer
- wire
- power line
- stranding
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Processes Specially Adapted For Manufacturing Cables (AREA)
- Insulated Conductors (AREA)
Abstract
The invention relates to a power line processing technology for improving performance stability, which comprises the following steps: s1, drawing the monofilament: drawing a copper wire by a wire drawing machine, annealing the copper wire with the diameter of 20-22um at the temperature of 50-60 ℃ by an annealing furnace to prepare a monofilament copper wire; s2, stranding core wires; s3, selecting rubber raw materials: selecting 60-80 parts of CPE, 80-90 parts of EPDM, 30-40 parts of plasticizer, 3-5 parts of stabilizer and 3-5 parts of auxiliary agent according to the parts by weight, and fully mixing; s4, extruding the insulating layer; s5, irradiation crosslinking: irradiating and scanning the insulating core wire in a high-energy electron accelerator, wherein high-energy electron beams generated by the high-energy electron accelerator penetrate through the insulating layer during crosslinking; s6, conveying the irradiated and crosslinked insulating core wire into water, and reducing the surface temperature of the insulating layer through water cooling; and S7, stranding the power wires into a cable through a cable former. The invention has the advantages that: the stability of the performance of each part of the power line insulating layer is ensured, the heat resistance is improved, and the thermal aging degree of the power line insulating layer is greatly reduced.
Description
The technical field is as follows:
the invention relates to the field of power line processing, in particular to a power line processing technology for improving performance stability.
Background art:
the power line is a wire for transmitting electric energy, generally, a copper wire with a smaller diameter is firstly twisted, a plurality of copper wires with a smaller diameter are twisted into a copper wire harness with a larger diameter, an insulating layer is coated on the outer side of the copper wire harness, the power line is manufactured at the moment, and finally, the power line is wound, so that the manufacturing process of the whole power line is completed.
The existing power line processing process has the following defects: the insulating layer of power cord adopts raw materials such as sulphur PVC resin, pollutes the environment in the vulcanization extrusion process, and the vulcanization process needs to pass through steam or boiler heating, and each position stability of performance is poor when bonding with the heart yearn, and the heat resistance of insulating layer is poor.
The invention content is as follows:
the invention aims to overcome the defects and provide a power line processing technology for improving the performance stability, so that the stability of the performance of each part of a power line insulating layer is ensured, the heat resistance is improved, and the thermal aging degree of the power line insulating layer is greatly reduced.
The purpose of the invention is realized by the following technical scheme: a power line processing technology for improving performance stability comprises the following steps:
s1, drawing the monofilament: drawing a copper wire by a wire drawing machine, annealing the copper wire with the diameter of 20-22um at the temperature of 50-60 ℃ by an annealing furnace to prepare a monofilament copper wire;
s2, stranding core wires: conveying a plurality of strands of monofilament copper wires to a stranding machine through a wire feeding frame, and stranding the plurality of strands of copper wires by the stranding machine to form a copper wire bundle;
s3, selecting rubber raw materials: selecting 60-80 parts of CPE, 80-90 parts of EPDM, 30-40 parts of plasticizer, 3-5 parts of stabilizer and 3-5 parts of auxiliary agent according to the parts by weight, and fully mixing;
s4, extruding an insulating layer: melting and extruding the raw materials mixed in the step S3 in an extruder and conveying the raw materials to a die, coating the melted raw materials outside the copper wire bundle by the die to form an insulated core wire, and cooling the insulated core wire in a natural air state along with the traction of a tractor;
s5, irradiation crosslinking: irradiating and scanning the insulating core wire in a high-energy electron accelerator, wherein high-energy electron beams generated by the high-energy electron accelerator penetrate through the insulating layer during crosslinking, and generate crosslinking reaction through energy conversion;
s6, conveying the irradiated and crosslinked insulating core wire into water, reducing the surface temperature of the insulating layer through water cooling, and manufacturing to finish the power line, wherein the temperature of the insulating layer is reduced from 160-180 ℃ to 15-25 ℃;
and S7, stranding the power wires into a cable through a cable former.
The invention is further improved in that: the plasticizer in step S3 is one of dioctyl phthalate, diisooctyl phthalate, dioctyl terephthalate, or dibutyl phthalate.
The invention is further improved in that: in step S1, the annealing temperature is 350-380 deg.C, and the annealing time is 15-20 min.
The invention is further improved in that: in step S7, the cabling speed is set at 60-80 m/min.
The invention is further improved in that: selecting 80 parts of CPE, 90 parts of EPDM, 40 parts of plasticizer, 5 parts of stabilizer and 5 parts of auxiliary agent, and fully mixing.
Compared with the prior art, the invention has the following advantages:
the invention selects the sulfur-free rubber raw material, avoids environment pollution caused by vulcanization, and through irradiation crosslinking, high-energy electron beams generated by a high-energy electron accelerator effectively penetrate through an insulating layer during crosslinking to generate crosslinking reaction through energy conversion, electrons have very high energy and uniformly penetrate through the insulating layer, and the formed crosslinking bond has high bonding energy, high stability and higher heat resistance, thereby greatly reducing the thermal aging degree of a power line, prolonging the service life, and simultaneously improving the physical properties of the insulating layer, such as tearing strength, resilience and the like.
The specific implementation mode is as follows:
for the purpose of enhancing understanding of the present invention, the present invention will be further described in detail with reference to the following examples, which are provided for illustration only and are not to be construed as limiting the scope of the present invention.
The invention relates to an implementation mode of a power line processing technology for improving performance stability, which comprises the following steps:
s1, drawing the monofilament: drawing a copper wire by a wire drawing machine, annealing the copper wire with the diameter of 20-22um at the temperature of 50-60 ℃ by an annealing furnace to prepare a monofilament copper wire;
s2, stranding core wires: conveying a plurality of strands of monofilament copper wires to a stranding machine through a wire feeding frame, and stranding the plurality of strands of copper wires by the stranding machine to form a copper wire bundle;
s3, selecting rubber raw materials: selecting 60-80 parts of CPE, 80-90 parts of EPDM, 30-40 parts of plasticizer, 3-5 parts of stabilizer and 3-5 parts of auxiliary agent according to the parts by weight, and fully mixing;
s4, extruding an insulating layer: melting and extruding the raw materials mixed in the step S3 in an extruder and conveying the raw materials to a die, coating the melted raw materials outside the copper wire bundle by the die to form an insulated core wire, and cooling the insulated core wire in a natural air state along with the traction of a tractor;
s5, irradiation crosslinking: irradiating and scanning the insulating core wire in a high-energy electron accelerator, wherein high-energy electron beams generated by the high-energy electron accelerator penetrate through the insulating layer during crosslinking, and generate crosslinking reaction through energy conversion;
s6, conveying the irradiated and crosslinked insulating core wire into water, reducing the surface temperature of the insulating layer through water cooling, and manufacturing to finish the power line, wherein the temperature of the insulating layer is reduced from 160-180 ℃ to 15-25 ℃;
and S7, stranding the power wires into a cable through a cable former.
Further, in step S3, the plasticizer is one of dioctyl phthalate, diisooctyl phthalate, dioctyl terephthalate, or dibutyl phthalate.
Further, in step S1, the annealing temperature is 350-380 ℃, and the annealing time is 15-20 min.
Further, in step S7, the cabling speed is set at 60-80 m/min.
Further, in step S3, CPE80 parts, EPDM90 parts, plasticizer 40 parts, stabilizer 5 parts, and auxiliary 5 parts are selected and mixed thoroughly.
The invention selects the sulfur-free rubber raw material, avoids environment pollution caused by vulcanization, and through irradiation crosslinking, high-energy electron beams generated by a high-energy electron accelerator effectively penetrate through an insulating layer during crosslinking to generate crosslinking reaction through energy conversion, electrons have very high energy and uniformly penetrate through the insulating layer, and the formed crosslinking bond has high bonding energy, high stability and higher heat resistance, thereby greatly reducing the thermal aging degree of a power line, prolonging the service life, and simultaneously improving the physical properties of the insulating layer, such as tearing strength, resilience and the like.
It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (5)
1. A power line processing technology for improving performance stability is characterized by comprising the following steps:
s1, drawing the monofilament: drawing a copper wire by a wire drawing machine, annealing the copper wire with the diameter of 20-22um at the temperature of 50-60 ℃ by an annealing furnace to prepare a monofilament copper wire;
s2, stranding core wires: conveying a plurality of strands of monofilament copper wires to a stranding machine through a wire feeding frame, and stranding the plurality of strands of copper wires by the stranding machine to form a copper wire bundle;
s3, selecting rubber raw materials: selecting 60-80 parts of CPE, 80-90 parts of EPDM, 30-40 parts of plasticizer, 3-5 parts of stabilizer and 3-5 parts of auxiliary agent according to the parts by weight, and fully mixing;
s4, extruding an insulating layer: melting and extruding the raw materials mixed in the step S3 in an extruder and conveying the raw materials to a die, coating the melted raw materials outside the copper wire bundle by the die to form an insulated core wire, and cooling the insulated core wire in a natural air state along with the traction of a tractor;
s5, irradiation crosslinking: irradiating and scanning the insulating core wire in a high-energy electron accelerator, wherein high-energy electron beams generated by the high-energy electron accelerator penetrate through the insulating layer during crosslinking, and generate crosslinking reaction through energy conversion;
s6, conveying the irradiated and crosslinked insulating core wire into water, reducing the surface temperature of the insulating layer through water cooling, and manufacturing to finish the power line, wherein the temperature of the insulating layer is reduced from 160-180 ℃ to 15-25 ℃;
and S7, stranding the power wires into a cable through a cable former.
2. The process for manufacturing a power cord with improved performance stability as claimed in claim 1, wherein the plasticizer in step S3 is one of dioctyl phthalate, diisooctyl phthalate, dioctyl terephthalate or dibutyl phthalate.
3. The process as claimed in claim 1, wherein in step S1, the annealing temperature is 350-380 ℃ and the annealing time is 15-20 min.
4. The process of claim 1, wherein in step S7, the cabling speed is set at 60-80 m/min.
5. The process for manufacturing a power cord with improved performance stability as claimed in claim 1, wherein in step S3, CPE80 parts, EPDM90 parts, plasticizer 40 parts, stabilizer 5 parts and auxiliary agent 5 parts are selected and mixed thoroughly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011624863.8A CN112863764A (en) | 2020-12-31 | 2020-12-31 | Power line processing technology for improving performance stability |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011624863.8A CN112863764A (en) | 2020-12-31 | 2020-12-31 | Power line processing technology for improving performance stability |
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| CN112863764A true CN112863764A (en) | 2021-05-28 |
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| CN202011624863.8A Pending CN112863764A (en) | 2020-12-31 | 2020-12-31 | Power line processing technology for improving performance stability |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3635621A (en) * | 1967-06-07 | 1972-01-18 | Sumitomo Electric Industries | Apparatus for crosslinking in curable rubber or plastic electric wire and cable |
| CN101167144A (en) * | 2005-04-21 | 2008-04-23 | Ls电线有限公司 | Cable interlinking device using infrared ray |
| CN101575434A (en) * | 2009-06-23 | 2009-11-11 | 安徽纵横高科电缆股份有限公司 | Oilproof cabtyre insulation material |
| CN103137271A (en) * | 2011-11-26 | 2013-06-05 | 烟台市电缆厂 | Production method and products of flexible cable for wind power generation |
| CN103310911A (en) * | 2013-06-05 | 2013-09-18 | 上海德力西集团有限公司 | Manufacturing process for halogen-free low-smoke anti-flaming B-type irradiation crosslinking polyolefin insulated wires |
| CN105023636A (en) * | 2015-07-04 | 2015-11-04 | 安徽龙庵电缆集团有限公司 | Ultra-light halogen-free low-smoke flame-retardation ship cable |
| CN110016190A (en) * | 2019-04-26 | 2019-07-16 | 惠州市福橡新材料科技有限公司 | A kind of radiation core rubber |
-
2020
- 2020-12-31 CN CN202011624863.8A patent/CN112863764A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3635621A (en) * | 1967-06-07 | 1972-01-18 | Sumitomo Electric Industries | Apparatus for crosslinking in curable rubber or plastic electric wire and cable |
| CN101167144A (en) * | 2005-04-21 | 2008-04-23 | Ls电线有限公司 | Cable interlinking device using infrared ray |
| CN101575434A (en) * | 2009-06-23 | 2009-11-11 | 安徽纵横高科电缆股份有限公司 | Oilproof cabtyre insulation material |
| CN103137271A (en) * | 2011-11-26 | 2013-06-05 | 烟台市电缆厂 | Production method and products of flexible cable for wind power generation |
| CN103310911A (en) * | 2013-06-05 | 2013-09-18 | 上海德力西集团有限公司 | Manufacturing process for halogen-free low-smoke anti-flaming B-type irradiation crosslinking polyolefin insulated wires |
| CN105023636A (en) * | 2015-07-04 | 2015-11-04 | 安徽龙庵电缆集团有限公司 | Ultra-light halogen-free low-smoke flame-retardation ship cable |
| CN110016190A (en) * | 2019-04-26 | 2019-07-16 | 惠州市福橡新材料科技有限公司 | A kind of radiation core rubber |
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Application publication date: 20210528 |
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