CN218333158U - Ultra-fine precise flat wire - Google Patents
Ultra-fine precise flat wire Download PDFInfo
- Publication number
- CN218333158U CN218333158U CN202123326715.0U CN202123326715U CN218333158U CN 218333158 U CN218333158 U CN 218333158U CN 202123326715 U CN202123326715 U CN 202123326715U CN 218333158 U CN218333158 U CN 218333158U
- Authority
- CN
- China
- Prior art keywords
- conductor
- wire
- flat
- ultra
- angle
- 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.)
- Active
Links
Images
Landscapes
- Insulated Conductors (AREA)
Abstract
The utility model relates to an ultra-fine precise flat wire, which comprises a metal flat conductor and an insulating layer, wherein the metal flat conductor is annealed and rolled for two or more times; the thickness of the metal flat conductor is less than or equal to 0.08mm; the edge angle of the flat metal conductor is an arc angle, and the angle of the edge angle is 157 +/-5 degrees; the insulating layer coating is arranged outside the metal flat conductor. The ultra-fine precision flat wire of the utility model eliminates the tissue defect, the internal stress and the surface stress caused by the front-stage process by carrying out secondary annealing and calendering on the wire rod; the four corners of the wire are smoothly transited, the surface tension of the coated insulating layer at the four corner positions is reduced, the uniformity of a paint film is improved, the overall performance of the flat wire is greatly improved, the DCR of a product is greatly reduced, the section rate of a conductor is improved, and the problem of high impedance is solved; the utility model discloses a super fine precision flat line mainly is applicable to fields such as all kinds of inductance, electrical apparatus, motor, voice coil loudspeaker voice coil, on-vehicle multi-media, and the product advantage is obvious, satisfies different field requirements and uses.
Description
Technical Field
The utility model relates to an enameled wire technical field especially relates to a superfine accurate flat wire.
Background
The enameled wire is a main variety of winding wire and mainly comprises a flat metal conductor and an insulating layer, and a bare wire is annealed and softened, then coated with paint for multiple times and baked. However, the production of modern high-end products is not easy to apply, and is influenced by the factors such as raw material quality, process parameters, production equipment, tool precision, actual environment and the like. Therefore, the quality characteristics of various enameled wires are different, but the enameled wires have four properties of mechanical property, chemical property, electrical property and thermal property; the enameled wire is a main raw material of various products such as inductors, electric appliances, motors, voice coils, vehicle-mounted multimedia and the like, particularly 5G mobile phones, 5G equipment, artificial intelligent machines, new energy sources and intelligent electric appliances and automobiles and the like are rapidly increased and demanded in recent years, and the high-end products have extremely high added values, so that the enameled wire brings wide fields and good prospects for the application of the enameled wire. With the consequent higher and more demanding requirements placed on the properties of enamelled wires.
The product application always puts new demands on the enameled wire, so the product structure adjustment of the enameled wire is inevitable, and the raw materials (metal and paint), the enamelling process, the process equipment, the detection means and the like matched with the enameled wire are also urgently researched and developed. However, in the prior art, the problem of the flat enameled wire is more, and the requirements of customers cannot be met, referring to fig. 1, which is a schematic cross-sectional view of the flat enameled wire in the prior art, the flat enameled wire in the prior art is unevenly painted integrally, the angle a of the rectangular conductor is 118 ° ± 5 degrees, the surface stress is larger, after four corners are painted, a bone shape is easy to appear, and the paint film at the four corners is weaker than that at other positions, so that the overall performance of the flat enameled wire is poorer; in order to greatly reduce the DCR of the product and improve the section rate of the conductor so as to solve the problem of higher impedance, an innovative solution to the problem of sharp corner angle of the rectangular conductor of the ultra-fine precise flat wire is urgently needed.
SUMMERY OF THE UTILITY MODEL
Accordingly, the present invention is directed to overcome the disadvantages and shortcomings of the prior art and to provide an ultra-fine precision flat wire.
An ultra-fine precision flat wire comprises a metal flat conductor and an insulating layer which are annealed and rolled twice or more; the thickness of the flat metal conductor is less than or equal to 0.08mm; the edge angle of the flat metal conductor is an arc angle, and the angle of the edge angle is 157 +/-5 degrees; the insulating layer is coated on the surface of the metal flat conductor.
The ultra-fine precision flat wire of the utility model eliminates the tissue defect, the internal stress and the surface stress caused by the front-stage process by carrying out secondary annealing and rolling on the wire rod; the four corners of the wire rod are smoothly transited, the surface tension of the coated insulating layer at the four corner positions is reduced, the uniformity of a paint film is improved, the overall performance of the flat wire is greatly improved, the DCR of a product is greatly reduced, the section ratio of a conductor is improved, the problem of high impedance is solved, and the insulation loss of the wire rod is reduced; the ultra-fine precision flat wire of the utility model is mainly suitable for the fields of various inductors, electric appliances, motors, voice coils, vehicle-mounted multimedia and the like, has obvious product advantages, and meets the requirements and applications in different fields; by the novel manufacturing and production process, the edges and corners are shaped to be 157 +/-5 degrees, and then insulation paint is prepared by research and development of my department, so that the paint film on the surface of the whole conductor is uniformly coated, and the high-performance ultra-fine precise flat wire is manufactured.
Further, the insulating layer is a diluted AI, PI layer or AI + PI composite coating.
Further, the diluted AI, PI layer or AI + PI composite coating is formed by mixing a solvent and a diluent.
Further, the solvent includes NMP, DMF, DMSO, DMAC, and the like; the diluent is acetone and the like.
Furthermore, in the paint liquid of the insulating layer, the proportion of acetone is 1-15%.
The beneficial effect of adopting the above further scheme is that the main components of the insulating paint liquid solvents of AI and PI are NMP, DMF, DMSO and DMAC, the surface tension is within the range of 32.4 mN-41.0 mN, the surface tension is large, the paint film uniformity is not facilitated, especially the edge positions are diluted by adding 1% -15% of acetone, the insulating surface tension is less than or equal to 25mN, the surface tension of the coated insulating layer at four edge positions is further reduced, the uniformity of the paint film is improved, and especially the painting at four edge positions of the flat line is uniform.
Further, still include the self-adhesive layer: the self-adhesive layer is an HB layer or an SB layer or an SV layer.
The further scheme has the advantages that the self-adhesive layer is coated on the surface of the insulating layer, the next process of the product is adapted, the formation of the terminal product is facilitated, the performance and the quality of the finished product are improved, and the wire rod is solidified into a whole.
Furthermore, the thickness of the single side of the insulating layer is 0.5-15 μm, and the thickness of the single side of the self-adhesive layer is 0.5-7 μm.
A production process of an ultra-fine precision flat wire comprises the following steps:
the method comprises the following steps: drawing a metal material semi-finished product into a specific round wire size according to the requirement of product specification through drawing;
step two; sequentially carrying out first high-temperature annealing and first rolling on the wire rod to enable the angle of the edge of the wire rod to be 118 +/-5 degrees; the purpose of the first high-temperature annealing is to eliminate certain structural defects and internal stress caused by the previous process; wire rods with the nominal specification of 10-80% can be obtained by first rolling, the R angle of a wire rod conductor is shaped into a half rectangular conductor, the width of the conductor is controlled to be 10% -90% of the nominal specification, and the angle of the edge angle of the rectangular conductor is 118 +/-5 degrees;
step three: sequentially carrying out secondary high-temperature annealing and secondary rolling on the wire rod to enable the angle of the edge of the wire rod to be 157 +/-5 degrees; the second high-temperature annealing aims to enable the surface of the conductor to reach a critical point of excessive softening, the surface stress of the metal material is smaller, the edge angle is reduced, and an arc angle is formed; rolling the wire rod to a nominal specification by the second rolling, shaping the wire rod conductor into a one-sixth rectangular conductor, wherein the conductor is high in flatness of a wide-side conductor, and the edges and corners of the rectangular conductor form arc angles after the second rolling, wherein the angles and corners of the rectangular conductor are 157 +/-5 degrees;
step four: coating insulating paint on the wire by adopting a high-voltage pulse numerical control closed spraying mode to ensure that the thickness of a single-side paint film is 0.5-15 mu m; the wire can be coated once or for multiple times by high-pressure closed spraying, and the thickness of each paint film can be accurately controlled;
step five: baking;
step six: cooling;
and 7: and (4) taking up and forming a finished wire material in a lubricating or non-coating surface lubricating mode.
Further, in the sixth step, after cooling, the wire can be coated with self-adhesive paint, the thickness of a single-side paint film is 0.5-7 μm, and the wire is baked and cooled again, and then the seventh step is carried out.
Furthermore, the flat metal conductor is made of metal materials such as copper, silver, aluminum, alloy, copper-clad aluminum or tin-plated copper;
the first annealing temperature of the metal round conductor is as follows: copper: 300 to 350 ℃; silver: 350-400 ℃; aluminum: 200 to 300 ℃; alloy: 400-500 ℃; copper-clad aluminum: 200 to 300 ℃; tin plating and copper plating: 250 to 350 ℃;
the second annealing temperature of the flat metal conductor is as follows: copper: 400-600 ℃; silver: 500-750 ℃; aluminum: 350 to 450 ℃; alloy: 500 to 750 ℃; copper-clad aluminum: 300-400 ℃; tin plating and copper plating: 600-700 ℃;
the nominal specification thickness T of the finished wire is less than or equal to 0.08mm, and the width W of the finished wire is less than or equal to 1.0mm.
For a better understanding and an implementation, the present invention is described in detail below with reference to the accompanying drawings.
Drawings
Fig. 1 is a schematic cross-sectional view of a prior art flat enameled wire according to the present invention;
FIG. 2 is a schematic cross-sectional view of the ultra-fine precision flat wire of the present invention;
FIG. 3 is a schematic flow chart of the process for manufacturing the ultra-fine precision flat wire of the present invention.
In the figure: 10. a flat metal conductor; 20. an insulating layer; 30. a self-adhesive layer; a. angle of edge.
Detailed Description
The technical solutions in the embodiments of the present application will be described clearly and completely with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only some embodiments of the present application, and not all 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 application.
It should be understood that in the description of the present application, the terms "center", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, merely for convenience of description and simplification of the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be considered as limiting the present application. The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated, i.e. a feature defined as "first" or "second" may explicitly or implicitly include one or more of such features. Further, unless otherwise specified, "a plurality" means two or more.
It should be noted that, in the description of the present application, unless otherwise explicitly specified or limited, the terms "disposed," "connected," and "hollow" are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
Referring to fig. 1 to 3, the present embodiment provides a super-fine precision flat wire and a manufacturing process thereof.
An ultra-fine precision flat wire comprises a flat metal conductor 10 and an insulating layer 20, which are annealed and rolled twice or more; the thickness of the flat metal conductor 10 is less than or equal to 0.08mm; the edge angle of the flat metal conductor 10 is an arc angle, and the angle a is 157 +/-5 degrees; the insulating layer 20 is coated and arranged outside the flat metal conductor 10.
Specifically, the insulating layer 20 is a diluted AI layer or a diluted PI layer or an AI + PI composite coating.
Specifically, the diluted AI layer or the diluted PI layer is formed by mixing a solvent and a diluent;
specifically, the solvent comprises NMP, DMF, DMSO and DMAC; the diluent is acetone and the like;
specifically, the insulating paint liquid of the insulating layer 20 contains 1-15% of acetone;
AI. The main components of the insulating paint liquid solvent of the PI are NMP, DMSO, DMAC and DMF, the surface tension is within the range of 32.4 mN-41.0 mN, the surface tension is large, the uniformity of a paint film is not facilitated, particularly, the angular positions are diluted by adding 1% -15% of acetone, the insulating surface tension is less than or equal to 25mN, the surface tension of the coated insulating layer 20 at four angular positions is further reduced, the uniformity of the paint film is improved, particularly, the painting at four angular positions of a flat line is uniform, and therefore the performance of the product is ensured to be higher and more stable.
In the preferred embodiment, a self-adhesive layer 30 is also included: the self-adhesive layer 30 is an HB layer or an SB layer or an SV layer; by coating the self-adhesive layer 30 on the surface of the insulating layer, the wire forming performance is improved, the quality of a finished product is improved, and the wire is solidified into a whole.
In the preferred embodiment, the thickness of the single-sided paint film of the insulating layer 20 is 0.5-15 μm, and the single-sided thickness of the self-adhesive layer 30 is 0.5-7 μm.
The ultra-fine precise flat wire of the utility model eliminates the tissue defect, the internal stress and the surface stress caused by the front section process by annealing and rolling the wire for two or more times; the four corners of the wire are smoothly transited, so that the surface tension of the coated insulating layer 20 at the four corners is reduced, the uniformity of a paint film is improved, the overall performance of the flat wire is greatly improved, the DCR of a product is greatly reduced, the section ratio of a conductor is improved, the problem of high impedance is solved, and the insulation loss of the wire is reduced; the utility model discloses a field such as superfine accurate flat line mainly is applicable to various inductance, electrical apparatus, motor, voice coil loudspeaker voice coil, on-vehicle multi-media, and the product advantage is obvious, satisfies different field requirements and uses.
A production process of an ultra-fine precision flat wire comprises the following steps:
the method comprises the following steps: performing round wire drawing on the metal flat conductor 10 wire rod, and obtaining a rectangular conductor through rolling;
step two; sequentially carrying out first high-temperature annealing and first rolling on the wire rod to enable the angle a of the edge of the wire rod to be 118 +/-5 degrees; the purpose of the first high-temperature annealing is to eliminate certain structural defects and internal stress caused by the previous process; wire rods with the nominal specification of 10-80% can be obtained by first rolling, the wire rod conductor is shaped into a half rectangular conductor, the width of the conductor is controlled to be 10% -90% of the nominal specification, and the corner angle a of the rectangular conductor is 118 +/-5 degrees;
step three: sequentially carrying out second high-temperature annealing and second rolling on the wire rod to enable the angle a of the edge of the wire rod to be 157 +/-5 degrees; the purpose of the second high-temperature annealing is to enable the surface of the conductor to reach a critical point of excessive softening, the surface stress of the metal material is smaller, the edge angle is reduced, and an arc angle is formed; rolling the wire rod to a nominal specification by the second rolling, shaping the wire rod conductor into a one sixth rectangular conductor, wherein the conductor is high in flatness of a wide-side conductor, the edge angle of the rectangular conductor after the second rolling forms an arc angle, and the edge angle a of the rectangular conductor is 157 +/-5 degrees;
step four: coating insulating paint on the wire by adopting a high-voltage pulse numerical control closed spraying mode to enable a single-side paint film to be 0.5-15 mu m; the wire can be coated once or for multiple times by high-pressure closed spraying, and the thickness of each paint film can be accurately controlled;
step five: baking;
step six: cooling;
and 7: and (3) taking up and forming a finished wire rod in a lubrication or non-coating surface lubrication mode, wherein the nominal specification thickness T of the finished wire rod is less than or equal to 0.08mm, and the width W of the finished wire rod is less than or equal to 1.0mm.
Specifically, in the sixth step, after cooling, according to the actual requirements of customers, the wire can be coated with the self-adhesive paint, and then the wire is baked and cooled, and then the seventh step is performed.
Specifically, the material of the flat metal conductor 10 is copper, silver, aluminum, alloy, copper-clad aluminum or tin-plated copper;
the first annealing temperature of the flat metal conductor is as follows: copper: 300 to 350 ℃; silver: 350-400 ℃; aluminum: 200 to 300 ℃; alloy: 400-500 ℃; copper-clad aluminum: 200 to 300 ℃; tin plating and copper plating: 250 to 350 ℃;
the second annealing temperature of the flat metal conductor is as follows: copper: 400-600 ℃; silver: 500 to 750 ℃; aluminum: 350 to 450 ℃; alloy: 500 to 750 ℃; copper-clad aluminum: 300-400 ℃; tin plating and copper plating: 600-700 ℃.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the concept of the present invention, several variations and modifications can be made, which all fall within the scope of the present invention.
Claims (4)
1. An ultra-fine precision flat wire, comprising:
the metal flat conductor is annealed and rolled for the second time or more, and the thickness of the metal flat conductor is less than or equal to 0.08mm; the edge angle of the flat metal conductor is an arc angle, and the angle of the edge angle is 157 +/-5 degrees;
and the insulating layer is coated and arranged outside the metal flat conductor.
2. The ultra-fine precision flat wire according to claim 1, further comprising a self-adhesive layer: the self-adhesive layer is an HB layer or an SB layer or an SV layer.
3. The ultra-fine precision flat wire according to claim 2, wherein the insulation layer has a single-sided thickness of 0.5 to 15 μm and the self-adhesive layer has a single-sided thickness of 0.5 to 7 μm.
4. The ultra-fine precision flat wire according to claim 3, wherein the material of the metal flat conductor is copper, silver, aluminum, an alloy, an aluminum alloy, copper-clad aluminum, or tin-plated copper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123326715.0U CN218333158U (en) | 2021-12-27 | 2021-12-27 | Ultra-fine precise flat wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123326715.0U CN218333158U (en) | 2021-12-27 | 2021-12-27 | Ultra-fine precise flat wire |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218333158U true CN218333158U (en) | 2023-01-17 |
Family
ID=84830354
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123326715.0U Active CN218333158U (en) | 2021-12-27 | 2021-12-27 | Ultra-fine precise flat wire |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218333158U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114283970A (en) * | 2021-12-27 | 2022-04-05 | 松田电工（台山）有限公司 | Ultra-fine precision flat wire and production process thereof |
-
2021
- 2021-12-27 CN CN202123326715.0U patent/CN218333158U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114283970A (en) * | 2021-12-27 | 2022-04-05 | 松田电工（台山）有限公司 | Ultra-fine precision flat wire and production process thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112542305A (en) | Integrated sectional forming micro-inductor manufacturing process | |
| CN203931551U (en) | Insulated electric conductor | |
| CN218333158U (en) | Ultra-fine precise flat wire | |
| CN114678159A (en) | High-temperature-resistant and corona-resistant ceramic-organic insulating composite wire and preparation method thereof | |
| CN105917421A (en) | Flat insulated wire and electric generator coil | |
| CN113363019A (en) | Manufacturing method of ultra-fine flat enameled wire | |
| CN201438386U (en) | Enamelled wire with polyester coating priming coat film | |
| WO2023226875A1 (en) | Manufacturing method for surface mounting inductor | |
| CN111732455A (en) | Double-tin-layer ceramic conductive material and preparation method thereof | |
| CN114283970A (en) | Ultra-fine precision flat wire and production process thereof | |
| CN105336451A (en) | Autohension corona-resistant enamelled wire and preparation method thereof | |
| CN114283971A (en) | Ultra-fine flat wire and production process thereof | |
| CN217280085U (en) | High-voltage-resistance composite insulated wire and coil | |
| CN116313347B (en) | Composite material for preparing inductor, inductor and preparation method of inductor | |
| CN113707370B (en) | Self-adhesive enameled wire and production process thereof | |
| CN101728022A (en) | Method for making insulated stranded wire | |
| JP7146449B2 (en) | Wires and coils for high frequency coils | |
| WO2023103181A1 (en) | Preparation method for low-voltage electrode foil having good bending fatigue strength | |
| JP2004111072A (en) | Flat angular ferromagnetic conductor and its manufacturing method, enamel-coated flat angular ferromagnetic wire, self-fusible enamel-coated flat angular ferromagnetic wire and ferromagnetic flat cable using the conductor | |
| CN114420379A (en) | Manufacturing method of micro-insulated square wire | |
| CN212782746U (en) | Polyurethane copper wire silver-plated alloy enameled wire | |
| CN201302834Y (en) | Three-layer insulation stranded wires used for high-frequency coil | |
| JP7011773B2 (en) | Enamel wire and manufacturing method of enamel wire | |
| JP2003073883A (en) | Electrodeposited iron film for high-frequency, insulated wire for high-frequency coil, and manufacturing method for these | |
| CN220305999U (en) | Insulated wire and manufacturing equipment thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 529200 Wenhua Development Zone B, Shuibu Town, Taishan City, Jiangmen City, Guangdong Province Patentee after: Guangdong Songtian Technology Co.,Ltd. Address before: No.8, zone B, Wenhua Development Zone, Shuibu Town, Taishan, Jiangmen City, Guangdong Province, 529200 Patentee before: MATSUDA ELECTRIC (TAISHAN) Co.,Ltd. |
|
| CP03 | Change of name, title or address |