CN111899924A - Corona-resistant enameled wire with high PDIV (polymer induced plasticity) and preparation process thereof - Google Patents
Corona-resistant enameled wire with high PDIV (polymer induced plasticity) and preparation process thereof Download PDFInfo
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- CN111899924A CN111899924A CN202010915177.XA CN202010915177A CN111899924A CN 111899924 A CN111899924 A CN 111899924A CN 202010915177 A CN202010915177 A CN 202010915177A CN 111899924 A CN111899924 A CN 111899924A
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- enameled wire
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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
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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
- H01B13/22—Sheathing; Armouring; Screening; Applying other protective layers
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
- H01B3/02—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of inorganic substances
- H01B3/08—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of inorganic substances quartz; glass; glass wool; slag wool; vitreous enamels
- H01B3/082—Wires with glass or glass wool
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
- H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
- H01B3/28—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances natural or synthetic rubbers
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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
- H01B7/17—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
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Insulated Conductors (AREA)
- Ropes Or Cables (AREA)
Abstract
The invention discloses a high-PDIV corona-resistant enameled wire and a preparation process thereof, and the enameled wire comprises a core conductor, wherein a reinforcing layer is wrapped on the surface of the core conductor, a paint layer is wrapped on the surface of the reinforcing layer, the reinforcing layer comprises a glass fiber layer and a rubber fiber layer, the glass fiber layer and the rubber fiber layer are twisted with each other, a fireproof paint is coated on the surface of the core conductor and positioned inside the reinforcing layer, an insulating layer is coated on the outer part of the paint layer and distributed outside the paint layer in a wrapping manner, the glass fiber layer and the rubber fiber layer are distributed inside the reinforcing layer in a spiral manner, and an insulating paint is coated on the surface of the reinforcing layer and positioned inside the paint layer. According to the invention, the glass fiber and the rubber fiber are added into the production material and are twisted by using the prior art, so that the overall structural strength of the enameled wire can be enhanced, the enameled wire can not be broken when being dragged, the toughness is good, and the overall quality is improved.
Description
Technical Field
The invention relates to the technical field of enameled wire production, in particular to a high-PDIV corona-resistant enameled wire and a preparation process thereof.
Background
The PDIV is an acronym of partial discharge initiation voltage, and means that partial discharge can be prevented if the PDIV is high, and the wire corona discharge is an ionization phenomenon of air around a wire under the action of a strong electric field, and the generation of the wire corona discharge is related to the wire and the conditions of the air around the wire (such as the number, the size, the charge quantity and the like of ions in the air); the air around the wire is ionized because the electric field intensity on the surface of the wire exceeds a certain critical value (when the actual operating voltage of the circuit is higher than the corona critical voltage value, the surface field intensity also exceeds the critical field intensity, and corona will occur), so that the original ions in the air have enough kinetic energy to impact other uncharged molecules, so that the latter are also ionized, and finally the partially conductive air is formed, the Partial Discharge Initiation Voltage (PDIV), also called the critical voltage, is the voltage when corona discharge begins to occur, and the electric field intensity corresponding to the initial corona field intensity or the critical field intensity.
Disclosure of Invention
The invention aims to provide a corona-resistant enameled wire with high PDIV (polymer induced plasticity) and a preparation process thereof, and aims to solve the problems in the background art.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a corona-resistant enameled wire of high PDIV, includes the core conductor, the surface coating of core conductor has the enhancement layer, the surface coating of enhancement layer has the lacquer bed of material, the inside of enhancement layer includes glass fiber layer and rubber fiber layer, glass fiber layer and the mutual transposition of rubber fiber layer form.
Preferably, the surface of the core conductor and the inside of the reinforcing layer are coated with a fire retardant lacquer.
Preferably, the outer part of the paint layer is coated with an insulating layer, and the insulating layer is distributed outside the paint layer in a wrapping manner.
Preferably, the glass fiber layer and the rubber fiber layer are spirally distributed in the reinforcing layer, and the surface of the reinforcing layer, which is positioned in the paint layer, is coated with the insulating paint.
Preferably, the production and preparation process of the high-PDIV corona-resistant enameled wire comprises the following steps:
s1, performing pressure processing on the wire blank prepared in advance and drawing the wire blank into a linear core material conductor with the required size by adopting a high-speed continuous drawing and packaging machine;
s2, cooling and cleaning the processed linear core conductor, and drying after cleaning to ensure that no liquid remains on the surface of the linear core conductor;
s3, placing the linear core material conductor in a mold, coating fireproof paint on the surface of the linear core material conductor by using a painting mold, standing for 0.5h, wrapping a reinforcing material on the surface, coating the paint on the surface of the reinforcing material, manufacturing the reinforcing material by using glass fibers and rubber fibers through a twisting process, wrapping the reinforcing material on the surface of the wire rod, and then coating a layer of insulating paint on the outer part of the paint;
and S4, taking out the core material from the mold, putting the core material into an annealing furnace for annealing treatment at the temperature of 300-600 ℃ for 3h, and taking out the core material for natural cooling after the surface paint layer is solidified to obtain the enameled wire.
Compared with the prior art, the invention has the following beneficial effects:
1. according to the invention, the glass fiber and the rubber fiber are added into the production material and are twisted by using the prior art, so that the overall structural strength of the enameled wire can be enhanced, the enameled wire can not be broken when being dragged, the toughness is good, and the overall quality is improved.
Drawings
FIG. 1 is a front view of the structure of the present invention;
FIG. 2 is a cross-sectional view of a reinforcement layer structure of the present invention.
In the figure: 1. a core material conductor; 2. a reinforcing layer; 3. a paint layer; 4. a glass fiber layer; 5. a rubber fiber layer.
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.
Referring to fig. 1-2, a corona-resistant enameled wire with high PDIV comprises a core conductor 1, a fireproof paint vehicle is coated on the surface of the core conductor 1 and inside a reinforcing layer 2, the reinforcing layer 2 is wrapped on the surface of the core conductor 1, a paint layer 3 is wrapped on the surface of the reinforcing layer 2, an insulating layer is coated on the outside of the paint layer 3 and is distributed outside the paint layer 3 in a wrapping manner, the reinforcing layer 2 comprises a glass fiber layer 4 and a rubber fiber layer 5, the glass fiber layer 4 and the rubber fiber layer 5 are twisted with each other, the glass fiber layer 4 and the rubber fiber layer 5 are distributed inside the reinforcing layer 2 in a spiral manner, an insulating paint is coated on the surface of the reinforcing layer 2 and inside the paint layer 3, and the glass fiber and the rubber fiber are added into a production material and twisted by using the prior art, so as to enhance the overall structural strength of the enameled wire, and can not produce the fracture when receiving to pull, toughness is better, has improved holistic quality.
A production preparation process of a high PDIV corona-resistant enameled wire comprises the following steps:
s1, performing pressure processing on the wire blank prepared in advance and drawing the wire blank into a linear core material conductor with the required size by adopting a high-speed continuous drawing and packaging machine;
s2, cooling and cleaning the processed linear core conductor, and drying after cleaning to ensure that no liquid remains on the surface of the linear core conductor;
s3, placing the linear core material conductor in a mold, coating fireproof paint on the surface of the linear core material conductor by using a painting mold, standing for 0.5h, wrapping a reinforcing material on the surface, coating the paint on the surface of the reinforcing material, manufacturing the reinforcing material by using glass fibers and rubber fibers through a twisting process, wrapping the reinforcing material on the surface of the wire rod, and then coating a layer of insulating paint on the outer part of the paint;
and S4, taking out the core material from the mold, putting the core material into an annealing furnace for annealing treatment at the temperature of 300-600 ℃ for 3h, and taking out the core material for natural cooling after the surface paint layer is solidified to obtain the enameled wire.
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 (5)
1. The utility model provides a corona resistant enameled wire of high PDIV, includes core conductor (1), its characterized in that: the surface of the core material conductor (1) is wrapped with a reinforcing layer (2), the surface of the reinforcing layer (2) is wrapped with a paint layer (3), the reinforcing layer (2) comprises a glass fiber layer (4) and a rubber fiber layer (5), and the glass fiber layer (4) and the rubber fiber layer (5) are mutually twisted to form the core material conductor.
2. The corona-resistant enameled wire with high PDIV according to claim 1, wherein: the surface of the core material conductor (1) and the inner part of the reinforcing layer (2) are coated with fireproof paint.
3. The corona-resistant enameled wire with high PDIV according to claim 1, wherein: the outer portion of the paint layer (3) is coated with an insulating layer, and the insulating layer is distributed outside the paint layer (3) in a wrapping shape.
4. The corona-resistant enameled wire with high PDIV according to claim 1, wherein: the glass fiber layer (4) and the rubber fiber layer (5) are distributed in the reinforcing layer (2) in a spiral shape, and the surface of the reinforcing layer (2) and the inner part of the paint layer (3) are coated with insulating paint.
5. A production and preparation process of a high PDIV corona-resistant enameled wire is characterized by comprising the following steps: the production process comprises the following steps:
s1, performing pressure processing on the wire blank prepared in advance and drawing the wire blank into a linear core material conductor with the required size by adopting a high-speed continuous drawing and packaging machine;
s2, cooling and cleaning the processed linear core conductor, and drying after cleaning to ensure that no liquid remains on the surface of the linear core conductor;
s3, placing the linear core material conductor in a mold, coating fireproof paint on the surface of the linear core material conductor by using a painting mold, standing for 0.5h, wrapping a reinforcing material on the surface, coating the paint on the surface of the reinforcing material, manufacturing the reinforcing material by using glass fibers and rubber fibers through a twisting process, wrapping the reinforcing material on the surface of the wire rod, and then coating a layer of insulating paint on the outer part of the paint;
and S4, taking out the core material from the mold, putting the core material into an annealing furnace for annealing treatment at the temperature of 300-600 ℃ for 3h, and taking out the core material for natural cooling after the surface paint layer is solidified to obtain the enameled wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010915177.XA CN111899924A (en) | 2020-09-03 | 2020-09-03 | Corona-resistant enameled wire with high PDIV (polymer induced plasticity) and preparation process thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010915177.XA CN111899924A (en) | 2020-09-03 | 2020-09-03 | Corona-resistant enameled wire with high PDIV (polymer induced plasticity) and preparation process thereof |
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| Publication Number | Publication Date |
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| CN111899924A true CN111899924A (en) | 2020-11-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010915177.XA Pending CN111899924A (en) | 2020-09-03 | 2020-09-03 | Corona-resistant enameled wire with high PDIV (polymer induced plasticity) and preparation process thereof |
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Citations (10)
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|---|---|---|---|---|
| CN1959864A (en) * | 2006-10-20 | 2007-05-09 | 李明斌 | USB connecting wire in use under high and low temperature, and acid or alkali environment, and fabricating technique |
| CN203377041U (en) * | 2013-06-07 | 2014-01-01 | 深圳市华创威实业有限公司 | Silicone rubber glass bushing capable of protecting electric appliance circuit |
| CN204178778U (en) * | 2014-11-17 | 2015-02-25 | 中大电气（天长）有限公司 | A kind of oval anti-corrosion cable |
| CN104464941A (en) * | 2014-12-25 | 2015-03-25 | 北京市交泰电缆有限公司 | Novel insulated cable |
| CN105355287A (en) * | 2015-12-07 | 2016-02-24 | 无锡江南电缆有限公司 | Halogen-free low-smoke flame-retardant fireproof power control composite flexible cable for city track traffic |
| CN106952683A (en) * | 2017-02-24 | 2017-07-14 | 远东电缆有限公司 | A kind of wisdom energy EMUs high oil-resistant high-temperature cable and production technology |
| CN207517454U (en) * | 2017-11-03 | 2018-06-19 | 深圳市华创威实业有限公司 | A kind of high-strength insulating silicone rubber fiber casing |
| CN109659078A (en) * | 2019-01-14 | 2019-04-19 | 宁波金田新材料有限公司 | A kind of the Inverter fed motor frequency conversion varnished wire and its preparation process of high PDIV |
| CN208954672U (en) * | 2018-12-19 | 2019-06-07 | 昆明海天电线电缆有限公司 | A kind of fire-fighting fire resisting twisted pair |
| CN210722526U (en) * | 2019-09-04 | 2020-06-09 | 绍兴凯气金属制品有限公司 | High-strength nylon rubber-coated wire |
-
2020
- 2020-09-03 CN CN202010915177.XA patent/CN111899924A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1959864A (en) * | 2006-10-20 | 2007-05-09 | 李明斌 | USB connecting wire in use under high and low temperature, and acid or alkali environment, and fabricating technique |
| CN203377041U (en) * | 2013-06-07 | 2014-01-01 | 深圳市华创威实业有限公司 | Silicone rubber glass bushing capable of protecting electric appliance circuit |
| CN204178778U (en) * | 2014-11-17 | 2015-02-25 | 中大电气（天长）有限公司 | A kind of oval anti-corrosion cable |
| CN104464941A (en) * | 2014-12-25 | 2015-03-25 | 北京市交泰电缆有限公司 | Novel insulated cable |
| CN105355287A (en) * | 2015-12-07 | 2016-02-24 | 无锡江南电缆有限公司 | Halogen-free low-smoke flame-retardant fireproof power control composite flexible cable for city track traffic |
| CN106952683A (en) * | 2017-02-24 | 2017-07-14 | 远东电缆有限公司 | A kind of wisdom energy EMUs high oil-resistant high-temperature cable and production technology |
| CN207517454U (en) * | 2017-11-03 | 2018-06-19 | 深圳市华创威实业有限公司 | A kind of high-strength insulating silicone rubber fiber casing |
| CN208954672U (en) * | 2018-12-19 | 2019-06-07 | 昆明海天电线电缆有限公司 | A kind of fire-fighting fire resisting twisted pair |
| CN109659078A (en) * | 2019-01-14 | 2019-04-19 | 宁波金田新材料有限公司 | A kind of the Inverter fed motor frequency conversion varnished wire and its preparation process of high PDIV |
| CN210722526U (en) * | 2019-09-04 | 2020-06-09 | 绍兴凯气金属制品有限公司 | High-strength nylon rubber-coated wire |
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Application publication date: 20201106 |