CN217485159U - Production device for improving electrical conductivity of special superfine copper-clad aluminum enameled wire - Google Patents
Production device for improving electrical conductivity of special superfine copper-clad aluminum enameled wire Download PDFInfo
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- CN217485159U CN217485159U CN202221608027.5U CN202221608027U CN217485159U CN 217485159 U CN217485159 U CN 217485159U CN 202221608027 U CN202221608027 U CN 202221608027U CN 217485159 U CN217485159 U CN 217485159U
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Abstract
The utility model discloses an improve superfine copper clad aluminum enameled wire electrical conductivity's of special type apparatus for producing, including open-top's box (1), be equipped with first cavity (2) in proper order along box (1) length in box (1), second cavity (3) and third cavity (4), all be equipped with between first cavity (2) and second cavity (3) and between second cavity (3) and third cavity (4) with baffle (5) fixed with box (1), the intussuseption of first cavity (2) is filled with the glass microballon, the intussuseption of second cavity (3) is filled with the grit, the intussuseption of third cavity (4) is filled with the abrasive powder, be equipped with on box (1) a plurality ofly and baffle (5) vertically passageway (6), the outside of box (1) is equipped with cleans the mechanism. The utility model has the advantages of can improve special superfine copper clad aluminum enameled wire electric conductive property and reduce the production energy consumption.
Description
Technical Field
The utility model belongs to special superfine copper clad aluminum enameled wire production facility field especially relates to an improve special superfine copper clad aluminum enameled wire electrical conductivity's apparatus for producing.
Background
The special superfine copper-clad aluminum enameled wire (referred to as a thin enameled wire for short) is a copper-clad aluminum enameled wire with the diameter of less than 0.2mm and mainly used in a high-temperature or high-humidity environment. The process of the enameled wire comprises the steps of cladding a layer of copper plate on the outer peripheral surface of an aluminum bar by cladding welding to obtain a rough blank, then carrying out multi-pass drawing, forming atomic diffusion and tight combination of copper and aluminum in the drawing process to form a core wire, carrying out stress relief annealing on the core wire, then cooling the core wire in a water tank, drying and painting to obtain a finished product. Wherein, the procedures of drawing, stress relief annealing, water tank cooling, drying and painting are continuous production processes.
When the enameled wire is used as an alternating current transmission medium, a skin effect exists, namely, current is mainly distributed on an outer copper layer, and the conductivity of the enameled wire is determined by the quality of the copper layer to a great extent. In the annealing stage, although argon protection is blown during annealing, because a continuous production process is adopted, an opening for feeding the core wire into and out of the annealing equipment is inevitably reserved, a small amount of oxygen enters the annealing equipment, so that a small amount of oxidation occurs to a copper layer, the conductivity of an oxide film is poor, the resistivity of the enameled wire is increased, and the conductivity is reduced; in the cooling stage of the water tank, the high-temperature core wire is in direct contact with water to generate larger stress, so that an insulating paint layer on the enameled wire is easy to crack under the induction of current or external force, the maximum passing current is limited, and the electric conductivity of the enameled wire is reduced; in the drying stage, the temperature of the core wire is still far higher than the normal temperature, and the copper layer oxidation is also promoted. For a thick enameled wire, because of the thick copper layer, the proportion of the oxide film which is not easy to conduct electricity on the surface to the total thickness of the copper layer is not large, the reduction of the conducting performance is not obvious, and the cooling of the water tank is considered to have the advantages of high speed and low cost, and the enameled wire is also suitable for being cooled by the water tank; however, for the thin enameled wire, the proportion of the oxide film occupying the total thickness of the copper layer is larger, and the reduction range of the conductivity is more obvious.
Therefore, a production device capable of improving the electrical conductivity of the special superfine copper-clad aluminum enameled wire is needed.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an improve the apparatus for producing of the superfine copper clad aluminum enameled wire electrical conductivity of special type. The utility model has the advantages of can improve special superfine copper clad aluminum enameled wire electric conductive property and reduce the production energy consumption.
The technical scheme of the utility model: the utility model provides an improve superfine copper clad aluminum enameled wire of special type electrical conductivity's apparatus for producing, including open-top's box, be equipped with first cavity in proper order along the box length in the box, second cavity and third cavity, all be equipped with the baffle fixed with the box between first cavity and the second cavity and between second cavity and the third cavity, the intussuseption of first cavity is filled with glass bead, the intussuseption of second cavity is filled with the grit, the intussuseption of third cavity is filled with the abrasive powder, be equipped with a plurality ofly on the box and baffle vertically passageway, the outside of box is equipped with wiping mechanism.
In the production device for improving the electrical conductivity of the special superfine copper-clad aluminum enameled wire, an air pipe parallel to the partition plate is arranged at the bottom of the first cavity, air outlet holes are formed in two horizontal sides of the air pipe, and a fan connected with the air pipe is arranged on the outer side of the box body.
In the production device for improving the electrical conductivity of the special superfine copper-clad aluminum enameled wire, the top of the first chamber is provided with the orifice plate, and the orifice plate is placed on the top surface of the glass bead.
In the production apparatus for improving the electrical conductivity of the special ultrafine copper-clad aluminum enameled wire, the abrasive grains are spherical ceramic sand with a water content of more than 8%, the top of the abrasive grains is provided with felt cloth, and the lower part of the second chamber is provided with a drain hole.
In the production apparatus for improving the electrical conductivity of the special ultrafine copper-clad aluminum enameled wire, a cover plate is arranged at the top of the grinding powder.
In the production device for improving the electrical conductivity of the special superfine copper-clad aluminum enameled wire, the wiping mechanism is located on the outer side wall of the third chamber and comprises a top plate and a bottom plate, the bottom plate is fixed to the box body, the top plate and the bottom plate are respectively located on the upper side and the lower side of the channel, and felt strips are arranged at the bottom of the top plate and the top of the bottom plate.
Compared with the prior art, the utility model is used for between destressing annealing and the japanning technology, the basin that uses when replacing original basin cooling and the drying equipment after the basin cooling, cool off the heart yearn step by step with glass bead, grit and abrasive powder respectively, the heart yearn is direct contact water not, and cooling rate is relatively slower, is difficult for producing stress, makes the insulating varnish layer on the enameled wire be difficult to the fracture, has improved the upper limit of the biggest through-current, has improved the electric conductive property of enameled wire promptly. Carry out the secondary through grit and abrasive powder to the heart yearn and polish, clear away the oxide film on the heart yearn to improve the luminosity on heart yearn surface, the electric conductive property of further improvement enameled wire, the grit is isolated the air with the abrasive powder moreover, avoids the heart yearn to generate the oxide film at the in-process reoxidation of polishing. Because the utility model discloses do not cool off the heart yearn through the basin, do not remain the drop of water after the heart yearn cooling, do not need further stoving, still reduced enameled wire production energy consumption. Therefore, the utility model has the advantages of can improve special superfine copper clad aluminum enameled wire electric conductive property and reduce the production energy consumption.
Drawings
Fig. 1 is a front view of the present invention.
Fig. 2 is a top view of the present invention.
The symbols in the drawings are: 1-box body, 2-first chamber, 3-second chamber, 4-third chamber, 5-partition board, 6-channel, 7-air pipe, 8-air outlet, 9-fan, 10-pore plate, 11-felt cloth, 12-water outlet, 13-cover plate, 14-top plate, 15-bottom plate, 16-felt strip and 17-core wire.
Detailed Description
The following description is made with reference to the accompanying drawings and examples, but not to be construed as limiting the invention.
Examples are given. The utility model provides an improve special superfine copper clad aluminum enameled wire electrical conductivity's apparatus for producing, as shown in fig. 1, box 1 including open-top, be equipped with first cavity 2 along box 1 length in proper order in box 1, second cavity 3 and third cavity 4, all be equipped with the baffle 5 fixed with box 1 between first cavity 2 and the second cavity 3 and between second cavity 3 and the third cavity 4, first cavity 2 intussuseption is filled with hollow glass bead, glass bead's specification 50 meshes, second cavity 3 intussuseption is filled with the grit, third cavity 4 intussuseption is filled with the abrasive powder, be equipped with a plurality of and 5 vertically passageways 6 of baffle on the box 1, passageway 6 runs through baffle 5, passageway 6 passes in proper order from glass bead, grit and abrasive powder, the outside of box 1 is equipped with cleans the mechanism.
The bottom of the first cavity 2 is provided with an air pipe 7 parallel to the partition plate 5, the two horizontal sides of the air pipe 7 are provided with air outlets 8, and the outer side of the box body 1 is provided with a fan 9 connected with the air pipe 7.
The top of the first chamber 2 is provided with a pore plate 10, and the pore plate 10 is placed on the top surface of the glass beads. The orifice plate 10 serves to prevent glass particles from flying out of the first chamber 2, and the inside of the orifice plate 10 is covered with a breathable fabric, such as a non-woven fabric.
The abrasive particles are spherical ceramic sand with the water content of 8% -10%, the specification of the abrasive particles is 200-300 meshes, felt cloth 11 is arranged at the tops of the abrasive particles, a water discharging hole 12 is formed in the lower portion of the second chamber 3, and mesh cloth for preventing the abrasive particles from falling out is arranged on the water discharging hole 12.
And a cover plate 13 is arranged at the top of the grinding powder. The material of abrasive powder is alumina, and the abrasive powder material is loose, and apron 13 plays slight compaction, improves the grinding effect to heart yearn 17 to prevent that the abrasive powder from raising under the effect of wind, avoid the workshop to pollute.
The wiping mechanism is located on the outer side wall of the third chamber 4 and comprises a top plate 14 and a bottom plate 15, the bottom plate 15 is fixed with the box body 1, the top plate 14 and the bottom plate 15 are respectively located on the upper side and the lower side of the channel 6, and felt strips 16 are arranged at the bottom of the top plate 14 and the top of the bottom plate 15.
The utility model discloses an use: the core wire with the diameter of 0.15mm is cooled between the stress relief annealing process and the painting process. The core wire 17, after stress relief annealing, has a temperature of about 350 c and passes through the passage 6 and through the first, second and third chambers in sequence. When the core wire 17 passes through the first chamber 2, the air flow generated by the fan 9 is discharged from the air outlet 8 through the air pipe 7, flows upwards through the gap between the glass beads, passes through the core wire 17, and cools the core wire 17. The glass beads can actually play a certain polishing role for the core wire 17, but the polishing effect is weak because the surfaces of the glass beads are smooth and light, and is basically not considered.
The temperature of the core wire 17 after leaving the first chamber 2 can be substantially reduced to 220-240 ℃, the core wire enters the second chamber 3 and contacts with the wet abrasive particles, the heat is largely taken away by the abrasive particles, and the oxide film on the surface is removed through polishing by the abrasive particles. The water content of the abrasive grains is substantially close to saturation at 8% or more, and when the water content exceeds 10%, the abrasive grains are likely to flow. Adopt moist grit, improve polishing effect, avoid the production of mar, and can improve the cooling effect to heart yearn 17, nevertheless because of not forming rivers, the cooling rate also can not be too fast and form amazing to the copper layer. The water in the abrasive particles serves the dual function of a cooling fluid and a lubricating fluid. With the use, the moisture in the abrasive particles can evaporate to reduce the moisture content, a small amount of water can be sprayed on the felt cloth 11 to moisturize, and the felt cloth 11 plays a role in storing water and reducing the evaporation speed of the moisture in the abrasive particles.
The temperature of the core wire 17 after leaving the second chamber 3 can be basically reduced to 80-100 ℃, the core wire enters the third chamber 4, contacts with the grinding powder and is further polished, so that the surface of the core wire is smoother and the conductivity is better, the aluminum oxide further takes away heat, the temperature is reduced to below 50 ℃, the temperature is close to the normal temperature, and an oxide film is not easily formed due to low temperature even if the core wire is exposed in the air.
After leaving the third chamber 4, the core wire 17 enters a wiping mechanism, and the residual grinding powder on the surface is wiped off by the upper felt strip 16 and the lower felt strip 16, so that the surface is kept clean. In order to further improve the cleanliness, a high-pressure air gun can be arranged at the rear side of the wiping mechanism to blow away the possibly remained grinding powder.
Claims (6)
1. The utility model provides an improve special superfine copper clad aluminum enameled wire electrical conductivity's apparatus for producing which characterized in that: including open-top's box (1), be equipped with first cavity (2) in box (1) in proper order along box (1) length, second cavity (3) and third cavity (4), all be equipped with between first cavity (2) and second cavity (3) and between second cavity (3) and third cavity (4) with baffle (5) fixed with box (1), first cavity (2) intussuseption is filled with the glass microballon, second cavity (3) intussuseption is filled with the grit, third cavity (4) intussuseption is filled with the abrasive powder, be equipped with a plurality ofly on box (1) and baffle (5) vertically passageway (6), the outside of box (1) is equipped with cleans the mechanism.
2. The production device for improving the electrical conductivity of the special superfine copper-clad aluminum enameled wire according to claim 1, characterized in that: an air pipe (7) parallel to the partition plate (5) is arranged at the bottom of the first cavity (2), air outlet holes (8) are formed in two horizontal sides of the air pipe (7), and a fan (9) connected with the air pipe (7) is arranged on the outer side of the box body (1).
3. The production device for improving the electrical conductivity of the special ultrafine copper-clad aluminum enameled wire according to claim 2, characterized in that: the top of the first chamber (2) is provided with a pore plate (10), and the pore plate (10) is placed on the top surface of the glass beads.
4. The production device for improving the electrical conductivity of the special superfine copper-clad aluminum enameled wire according to claim 1, characterized in that: the abrasive particles are spherical ceramic sand with the water content of more than 8%, felt cloth (11) is arranged at the tops of the abrasive particles, and a water drainage hole (12) is formed in the lower portion of the second chamber (3).
5. The production device for improving the electrical conductivity of the special superfine copper-clad aluminum enameled wire according to claim 1, characterized in that: and a cover plate (13) is arranged at the top of the grinding powder.
6. The production device for improving the electrical conductivity of the special superfine copper-clad aluminum enameled wire according to claim 1, characterized in that: the wiping mechanism is located on the outer side wall of the third chamber (4) and comprises a top plate (14) and a bottom plate (15), the bottom plate (15) is fixed with the box body (1), the top plate (14) and the bottom plate (15) are located on the upper side and the lower side of the channel (6) respectively, and felt strips (16) are arranged at the bottom of the top plate (14) and the top of the bottom plate (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221608027.5U CN217485159U (en) | 2022-06-23 | 2022-06-23 | Production device for improving electrical conductivity of special superfine copper-clad aluminum enameled wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221608027.5U CN217485159U (en) | 2022-06-23 | 2022-06-23 | Production device for improving electrical conductivity of special superfine copper-clad aluminum enameled wire |
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| Publication Number | Publication Date |
|---|---|
| CN217485159U true CN217485159U (en) | 2022-09-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221608027.5U Active CN217485159U (en) | 2022-06-23 | 2022-06-23 | Production device for improving electrical conductivity of special superfine copper-clad aluminum enameled wire |
Country Status (1)
| Country | Link |
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| CN (1) | CN217485159U (en) |
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2022
- 2022-06-23 CN CN202221608027.5U patent/CN217485159U/en active Active
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