Aluminum magnet wire and production method thereof

Abstract

The present invention belongs to the technical field of aluminum magnet wire production, and more specifically relates to an aluminum magnet wire and a production method thereof. In the existing aluminum magnet wire production technology, the present invention adopts a water vapor annealing technology during the low-temperature annealing process of the raw material aluminum wire. While ensuring the annealing treatment of the aluminum wire and improving the mechanical properties, the water vapor forms a uniform liquid water film on the surface of the aluminum wire, which plays a role in isolating the outside air and slowing down the oxidation rate, thereby ensuring the surface quality of the aluminum wire and reducing the situation in which the surface oxidation of the aluminum wire during the annealing process affects the performance, thereby ensuring the quality of the aluminum magnet wire finally obtained.

Description

Technical Field

[0001] The invention belongs to the technical field of aluminum electromagnetic wire production, in particular to an aluminum electromagnetic wire and a production method thereof. Background Art

[0002] Magnet wire, also known as winding wire, is an insulated wire used to manufacture coils or windings in electrical products. Magnet wire is typically categorized as enameled wire, wrapped wire, enameled wrapped wire, and inorganic insulated wire. Enameled wire is produced by coating the conductor with a lacquer solution, followed by solvent evaporation, paint film curing, and cooling.

[0003] Aluminum magnet wire is a type of magnet wire made with aluminum as its conductor. It has the advantages of being lightweight, corrosion-resistant, fatigue-resistant, and having a long service life. It is widely used in industrial motors, power equipment, household appliances, automotive motors, power tools, instrumentation, and other fields.

[0004] In the existing aluminum magnet wire processing process, the aluminum wire used as the raw material is annealed. Due to the characteristics of aluminum material, surface oxidation easily occurs during the heating process, affecting the surface quality of the aluminum wire, thereby reducing the quality of the finished aluminum magnet wire. In addition, during the cleaning process, due to the small diameter of the aluminum wire, it is immersed in the cleaning tank and only comes into contact with a small part of the cleaning liquid, which reduces the utilization rate of the cleaning liquid and the cleaning efficiency. Summary of the Invention

[0005] In order to make up for the deficiencies of the prior art and solve the above-mentioned technical problems, the present invention provides an aluminum magnet wire and a production method thereof.

[0006] The technical solution adopted by the present invention to solve the technical problem is: the present invention proposes a method for producing aluminum magnet wire, the specific steps of the production method comprising:

[0007] S1, material preparation: Prepare the aluminum wire and insulating varnish as raw materials, send them to the processing workshop via a transfer cart, mix the insulating varnish and thinner according to the selected ratio, and add them to the enameling machine as the raw materials for the impregnation process;

[0008] S2, wire drawing: In the wire drawing station in the processing workshop, the aluminum wire is fed into the wire drawing machine and drawn once or multiple times according to the processing needs to obtain the required wire diameter; during the drawing process, the processing temperature is controlled at 60-120℃, and water-soluble lubricant is used for lubrication and cooling;

[0009] S3, cleaning: The aluminum wire is fed into a cleaning tank of a cleaning device, passing the aluminum wire through a limiting tube in the cleaning tank. Cleaning liquid is introduced into the limiting tube so that the aluminum wire is fully in contact with the flowing cleaning liquid in the limiting tube, thereby separating oil and impurities on the surface of the aluminum wire;

[0010] S4, Annealing: Using the steam annealing process, the aluminum wire is fed into the annealing furnace, and high-temperature steam is introduced to control the annealing temperature to 300-500°C. After the annealing process, a cooling fan is used for cooling;

[0011] S5, varnishing: The aluminum wire cooled to 40-50°C is fed into the enamelling machine, so that the insulating varnish mixed with thinner is applied to the surface of the aluminum wire to form an insulating layer;

[0012] S6, curing: feeding the aluminum wire into a drying oven, controlling the drying temperature to 300-500°C, drying and curing the insulation layer on the surface of the aluminum wire to obtain aluminum magnet wire;

[0013] S7, Quality Inspection: The size, mechanical properties and electrical performance parameters of the produced aluminum electromagnetic wire are tested to determine whether they meet the qualified standards. After passing the test, the produced aluminum electromagnetic wire is rolled and packaged and sent to a dedicated warehouse for storage.

[0014] Preferably, in the above step S3, the cleaning process of the aluminum magnet wire specifically includes:

[0015] S31: First, the end of the aluminum wire to be processed is fixed to the guide wire inside the continuously curved limiting tube, and the guide wire is pulled so that the end of the aluminum wire passes through the limiting hole on one side of the cleaning tank, enters the limiting tube, and then extends out through the limiting hole on the other side and leaves the cleaning tank;

[0016] S32: Starting a traction device for pulling the aluminum wire so that the aluminum wire continuously passes through the limiting pipe, and starting a water pump to feed the cleaning liquid in the water storage chamber at the bottom of the cleaning device from the water inlet pipe connected to the limiting pipe into the limiting pipe, and then flowing out of the limiting pipe from the water outlet pipe connected to the limiting pipe and back into the water storage chamber, thereby realizing a circulation flow of the cleaning liquid;

[0017] S33: A purification component is provided in the water reservoir to separate the oily impurities that flow into the water reservoir during the cleaning process.

[0018] Preferably, when connecting the water inlet pipe and the water outlet pipe, one end of the water inlet pipe is connected to the pipe peak area located at the highest point of the limiting pipe in the vertical direction, and the other end is connected to the water storage chamber; one end of the water outlet pipe is connected to the pipe valley area located at the lowest point of the limiting pipe, and the other end is connected to the inside of the water storage chamber.

[0019] Preferably, multiple limiting rings are evenly arranged on both sides of the trough area on the inner wall of the limiting tube, so that the guide line passes through the inner circle area of ​​each limiting ring in turn, and the cross-section of the limiting ring is trapezoidal, and multiple connecting holes with through-hole structures are evenly arranged at the joint between the limiting ring and the limiting tube.

[0020] Preferably, a plurality of guide grooves are evenly arranged on the outer surface of the limiting ring on the side close to the corresponding pipe peak area, and the guide grooves are distributed in a ring shape around the central axis of the limiting ring.

[0021] Preferably, the guide groove is communicated with the annular groove on the inner ring of the limiting ring, and the cross-section of the annular groove is semicircular. Elastic friction rings are provided on both sides of the guide groove on the surface of the inner ring of the limiting ring.

[0022] Preferably, the guide wire adopts a tubular structure, and bristles are provided on the outer surface of the guide wire, and the inner wall of the limiting tube is cleaned by reciprocatingly pulling the guide wire located inside the limiting tube.

[0023] Preferably, the external air source is connected to the water inlet pipe, and the filtered and purified air is sent into the water inlet pipe by starting the external air source, and mixed with the cleaning liquid inside the water inlet pipe to form a gas-liquid mixture, which participates in cleaning the aluminum wire inside the limit tube.

[0024] An aluminum electromagnetic wire is prepared using an aluminum electromagnetic wire production method.

[0025] The beneficial effects of the present invention are as follows:

[0026] The aluminum magnet wire and its production method described in the present invention utilize a water vapor annealing technology during the low-temperature annealing process of the raw aluminum wire in the existing aluminum magnet wire production technology. While ensuring the annealing treatment of the aluminum wire and improving the mechanical properties, the water vapor forms a uniform liquid water film on the surface of the aluminum wire, which isolates the outside air and slows down the oxidation rate, thereby ensuring the surface quality of the aluminum wire and reducing the situation in which the surface oxidation of the aluminum wire during the annealing process affects the performance, thereby ensuring the quality of the final aluminum magnet wire. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The present invention will be further described below with reference to the accompanying drawings.

[0028] Figure 1 It is a flow chart of the production method of the present invention;

[0029] Figure 2 It is a flow chart of the cleaning process in the production method of the present invention;

[0030] Figure 3 It is a three-dimensional diagram of the cleaning equipment used in the present invention;

[0031] Figure 4 It is a partial cross-sectional view of the cleaning equipment used in the present invention;

[0032] Figure 5 yes Figure 4 A partial enlarged view of point A in the middle;

[0033] Figure 6It is a three-dimensional diagram of a limit ring in the cleaning equipment used in the present invention;

[0034] Figure 7 It is a cross-sectional view of the cleaning device used in the present invention as viewed from the side;

[0035] Figure 8 It is a three-dimensional diagram of the guide wire in the cleaning equipment used in the present invention;

[0036] Figure 9 yes Figure 8 A partial enlarged view of point B in the middle.

[0037] In the figure: cleaning equipment 1, cleaning pool 11, limiting hole 111, limiting pipe 12, pipe peak area 121, pipe valley area 122, guide line 13, flushing hole 131, water inlet pipe 14, water outlet pipe 15, water storage chamber 16, purification component 17, limiting ring 18, guide groove 181, annular groove 182, friction ring 183, connecting hole 184. DETAILED DESCRIPTION

[0038] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings shown in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0039] Example 1:

[0040] As shown in the accompanying drawings Figures 1-9 As shown, a method for producing aluminum magnet wire, the specific steps of the production method include:

[0041] S1, material preparation: Prepare the aluminum wire and insulating varnish as raw materials, send them to the processing workshop via a transfer cart, mix the insulating varnish and thinner in a selected ratio, the specific ratio is configured according to the aluminum magnet wire and insulation requirements, and add it to the enameling machine as the raw material for the impregnation process;

[0042] S2, wire drawing: In the wire drawing station in the processing workshop, the aluminum wire is fed into the wire drawing machine and drawn once or multiple times according to the processing needs to obtain the required wire diameter; during the drawing process, the processing temperature is controlled at 60-120℃, and water-soluble lubricant is used for lubrication and cooling;

[0043] S3, cleaning: The aluminum wire is fed into the cleaning tank 11 of the cleaning apparatus 1, passing the aluminum wire through the limiting tube 12 in the cleaning tank 11. Cleaning liquid is introduced into the limiting tube 12 so that the aluminum wire is fully in contact with the flowing cleaning liquid in the limiting tube 12, thereby separating oil and impurities on the surface of the aluminum wire;

[0044] S4, Annealing: Using the steam annealing process, the aluminum wire is fed into the annealing furnace, and high-temperature steam is introduced to control the annealing temperature to 300-500°C. After the annealing process, a cooling fan is used for cooling;

[0045] S5, varnishing: The aluminum wire cooled to 40-50°C is fed into the enamelling machine, so that the insulating varnish mixed with thinner is applied to the surface of the aluminum wire to form an insulating layer;

[0046] S6, curing: feeding the aluminum wire into a drying oven, controlling the drying temperature to 300-500°C, drying and curing the insulation layer on the surface of the aluminum wire to obtain aluminum magnet wire;

[0047] S7, Quality Inspection: The dimensions, mechanical properties, and electrical performance parameters of the produced aluminum magnet wire are tested to determine whether they meet the qualified standards. If qualified, the produced aluminum magnet wire is rolled, packaged, and sent to a dedicated warehouse for storage;

[0048] During the specific testing process, for the size of the aluminum electromagnetic wire, parameters such as the cross-sectional diameter, cross-sectional non-roundness, maximum outer diameter and paint film thickness of the aluminum electromagnetic wire can be measured; for the mechanical properties of the aluminum electromagnetic wire, through simulated use, the tensile force, friction force and other mechanical properties of the aluminum electromagnetic wire during the winding process can be tested; for the electrical performance test of the aluminum electromagnetic wire, during the experimental use, parameters such as the DC resistance and breakdown voltage of the aluminum electromagnetic wire during use can be tested.

[0049] In the existing production technology of aluminum magnet wire, this application adopts water vapor annealing technology during the low-temperature annealing process of the raw aluminum wire. While ensuring the annealing treatment of the aluminum wire and improving the mechanical properties, the water vapor forms a uniform liquid water film on the surface of the aluminum wire, isolating it from the outside air and slowing down the oxidation rate, thus ensuring the surface quality of the aluminum wire and reducing the impact of aluminum wire surface oxidation during the annealing process on the performance, thereby ensuring the quality of the final aluminum magnet wire.

[0050] Furthermore, in the steam annealing process, the surface quality of the aluminum wire as the raw material has a relatively critical impact. Therefore, the present application uses a cleaning device 1 in the cleaning process of pre-cleaning the aluminum wire. When cleaning ordinary workpieces, the cleaning device 1 of the present application directly places the workpiece into the cleaning tank 11 and immerses it in the cleaning liquid for cleaning. When it is necessary to process linear workpieces such as aluminum magnet wire, multiple limiting tubes 12 are fixed in the cleaning tank 11. Water purified with hydrochloric acid and caustic soda is used as the cleaning liquid to be confined to the limiting tubes 12, and the linear aluminum wire workpieces are centrally cleaned.

[0051] Specifically, by arranging a limiting tube 12 in the cleaning pool 11 to connect the limiting holes 111 on both sides, the aluminum wire will move at a low speed along the extension direction of the limiting tube 12 when it enters the interior of the limiting tube 12; during this process, cleaning liquid is introduced to flow along the limiting tube 12, and the moving aluminum wire is flushed and cleaned in a smaller area inside the tube, thereby improving the cleaning effect and making the oil and impurities on the surface of the aluminum wire be flushed more fully; compared with the prior art in which the cleaning liquid is in a static or low-speed flow state and is used to immerse and flush the workpiece, the contact surface is small and the utilization is insufficient, the present application is more suitable for aluminum wire workpieces with smaller cross-sections and larger lengths, and the limiting tube 12 restricts and guides the cleaning liquid, so that the cleaning liquid is concentrated and fully contacted with the aluminum wire and fully utilized, thereby improving the utilization rate of the cleaning liquid, and can clean multiple aluminum wires at the same time without causing mutual interference, and the oil and impurities on different aluminum wires will not contact and pollute each other, thereby improving the cleaning efficiency of the aluminum wire.

[0052] Example 2:

[0053] On the basis of the first embodiment, in the above step S3, the cleaning process of the aluminum magnet wire specifically includes:

[0054] S31: First, the end of the aluminum wire to be processed is fixed to the guide wire 13 inside the continuously curved limiting tube 12. The guide wire 13 is pulled so that the end of the aluminum wire passes through the limiting hole 111 on one side of the cleaning tank 11, enters the limiting tube 12, and then extends out through the limiting hole 111 on the other side and leaves the cleaning tank 11.

[0055] S32: Start the traction device for pulling the aluminum wire to ensure that the aluminum wire continuously passes through the limiting tube 12. By starting the water pump, the cleaning liquid in the water storage chamber 16 at the bottom of the cleaning device 1 is fed into the limiting tube 12 from the water inlet pipe 14 connected to the limiting tube 12. Then, the cleaning liquid flows out of the limiting tube 12 from the water outlet pipe 15 connected to the limiting tube 12 and returns to the water storage chamber 16, thereby realizing a circulation flow of the cleaning liquid. The traction device here can be a winding roller driven by a motor, and the aluminum wire to be cleaned is wound around the winding roller on one side, so that the aluminum wire continuously moves through the cleaning tank 11 and is wound onto the winding roller on the other side, thereby achieving automatic and sufficient cleaning of the aluminum wire.

[0056] S33: A purification component 17 is provided in the water reservoir to separate the oily impurities that flow into the water storage chamber 16 during the cleaning process.

[0057] By providing the limiting tube 12 with a continuously curved structure, it extends in a wavy trajectory from one side of the cleaning tank 11 to the other side, so that the aluminum wire enters the limiting tube 12 and also exhibits a wavy movement trajectory. In this way, without expanding the volume of the cleaning tank 11 and ensuring the stable movement trajectory of the aluminum wire, the contact time between the aluminum wire and the cleaning liquid is increased, the contact area is increased, and the cleaning efficiency of the aluminum wire is improved;

[0058] And because the aluminum wire moves along a continuously curved trajectory, it undergoes continuous bending deformation during movement, which promotes the deformation and vibration of the aluminum wire surface, causing the oil and impurities adhering to the aluminum wire surface to fall off under the flushing of the flowing cleaning liquid and mix into the flowing cleaning liquid, thereby achieving full purification of the aluminum wire.

[0059] Furthermore, regarding the circulation flow of the cleaning liquid in and out, this embodiment provides a possible implementation scheme. When connecting the water inlet pipe 14 and the water outlet pipe 15, one end of the water inlet pipe 14 is connected to the pipe peak area 121 located at the highest point in the vertical direction of the limiting pipe 12, and the other end is connected to the water storage chamber 16; one end of the water outlet pipe 15 is connected to the pipe valley area 122 located at the lowest point of the limiting pipe 12, and the other end is connected to the inside of the water storage chamber 16; in this way, the water connected to the water inlet pipe 14 and the water outlet pipe 15 is started. When the pump device is used, the cleaning liquid inside the water reservoir is first pumped into the water inlet pipe 14, so that the water inlet pipe 14 flows out from the multiple distributed pipe peak areas 121 on the limit pipe 12, flows from the pipe peak area 121 to the pipe valley areas 122 on both sides, and then flows into the water outlet pipe 15 connected to the pipe valley area 122, and flows back into the water storage chamber 16. After being filtered and purified by the purification component 17 in the water storage chamber 16, it flows into the water inlet pipe 14 to participate in the purification of the aluminum wire, thereby realizing the recycling of the cleaning liquid;

[0060] Because the cleaning liquid flows in and out of the tube peak area 121 and the tube valley area 122 respectively, and flushes the aluminum wire inside the limit tube 12 during the flow process, the oil and impurities adhering to the surface of the aluminum wire fall off and are separated during the flushing process; because the deformation amplitude of the highest point and the lowest point of the aluminum wire's moving trajectory increases, the flushing effect driven by the inflow and outflow of the cleaning liquid coincides with the area where the deformation amplitude of the aluminum wire increases, and the oil and impurities on the surface of the aluminum wire are more fully removed;

[0061] Furthermore, because there are multiple tube peak areas 121 and tube valley areas 122, the limiting tube 12 can be divided into multiple small sections with the tube valley areas 122 as the boundary. In each small section, the cleaning liquid flows in from the tube peak area 121 in the middle position, and is accelerated to flow to the tube valley areas 122 on both sides under the action of gravity and water pump pressure, flushing the aluminum wire and removing oil and impurities before flowing out from the tube valley areas 122. This allows the entire cleaning process of the aluminum wire in the limiting tube 12 to be divided into multiple small sections of cyclic flushing processes. When the aluminum wire passes through each small section, the flushed oil and impurities will quickly flow out of the tube valley areas 122, reducing the situation where the continuous flow adheres to the surface of the aluminum wire again, thereby making the flushing and purification of the aluminum wire more sufficient and thorough.

[0062] By controlling the power of the water pump connected to the water inlet pipe 14 and the water outlet pipe 15, the cleaning liquid is accumulated inside the limit pipe 12. In each small section of the limit pipe 12, the cleaning liquid fills the area around the pipe valley area 122, but the liquid level of the cleaning liquid keeps a distance from the pipe peak area 121, so that the continuously flowing cleaning liquid is accelerated under the action of gravity to further impact the aluminum wires on both sides, and also prevents excessive accumulation of cleaning liquid from leaking to the outside area from the openings of the limit pipe 12 on both sides, and closed rings and other workpieces are set at the limit holes 111 on both sides to allow the aluminum wire to pass through the middle while preventing the cleaning liquid inside the limit pipe 12 from overflowing.

[0063] Example 3:

[0064] On the basis of the second embodiment, in order to guide the flowing cleaning liquid inside the limiting tube 12, promote its contact with the aluminum wire more fully, and improve the cleaning efficiency; a plurality of limiting rings 18 are evenly arranged on both sides of the trough area of ​​the inner wall of the limiting tube 12, so that the guide wire 13 passes through the inner circle area of ​​each limiting ring 18 in sequence, and the cross-section of the limiting ring 18 is trapezoidal, and a plurality of connecting holes 184 of a through-hole structure are evenly arranged at the junction of the limiting ring 18 and the limiting tube 12;

[0065] A plurality of guide grooves 181 are evenly arranged on the outer surface of the limiting ring 18 on the side close to the corresponding pipe peak area 121 , and the guide grooves 181 are distributed in an annular manner around the central axis of the limiting ring 18 .

[0066] The guide groove 181 communicates with the annular groove 182 on the inner ring of the limiting ring 18 , and the cross section of the annular groove 182 is semicircular. Elastic friction rings 183 are provided on both sides of the guide groove 181 on the inner ring surface of the limiting ring 18 .

[0067] In this way, when the aluminum wire moves inside the limiting tube 12, it is restricted to the inner circle position of the limiting ring 18, reducing the contact between the aluminum wire and the inner wall of the limiting tube 12, ensuring the gap area between the aluminum wire and the inner wall of the limiting tube 12, so that the cleaning liquid fills the gap between the aluminum wire and the inner wall of the limiting tube 12 and fully wraps and flushes the aluminum wire, removing the oil and impurities on the surface of the aluminum wire;

[0068] When the cleaning liquid flowing into the pipe peak area 121 flows toward the pipe valley areas 122 on both sides, it is blocked when it contacts the limiting ring 18. A part of the cleaning liquid flowing close to the pipe wall flows out from the connecting hole 184 and passes through the limiting ring 18. The other part of the cleaning liquid is concentrated toward the middle inner circle area along the inclined surface of the limiting ring 18 on the side close to the pipe peak area 121. In particular, the cleaning liquid water flow flowing toward the center along the guide groove 181 presents a circular impact trajectory toward the center, so that the aluminum wire passing through the inner circle of the limiting ring 18 is concentratedly washed, further removing the oil and impurities on the surface of the aluminum wire.

[0069] The provision of the connecting hole 184 relieves some of the direct impact of the cleaning liquid on the limit ring 18, thereby ensuring a stable connection between the limit ring 18 and the limit tube 12. Moreover, because the connecting hole 184 is located in the gap between the limit ring 18 and the limit tube 12, some of the denser particulate impurities removed by the cleaning liquid will flow along the inner wall of the limit tube 12. The connecting hole 184 allows the cleaning liquid to carry the particulate impurities smoothly through the limit ring 18, reducing contact with the aluminum wire in the middle position, thereby reducing the impact and scratching of the particulate impurities on the aluminum wire surface, and also preventing the removed impurities from adhering to the aluminum wire surface again.

[0070] Furthermore, because the inner ring of the limiting ring 18 is provided with an annular groove 182 in the middle area of ​​the friction ring 183, the gap between the inner ring of the annular groove 182 and the aluminum wire is relatively large, and the annular groove 182 is connected to the guide groove 181. Therefore, the cleaning liquid flowing along the guide groove 181 enters the annular groove 182 and accumulates in the annular groove 182 and slides through the surface of the aluminum wire to contact and friction. Because the cleaning liquid fills the gap between the inner wall of the annular groove 182 and the aluminum wire, while reducing the friction of the aluminum wire movement, the cleaning liquid accumulated in the annular groove 182 increases the water pressure due to the friction of the aluminum wire movement and continuous flow, further acting on the surface of the aluminum wire, thereby improving the cleaning effect of the aluminum wire surface.

[0071] The friction ring 183 can be made of sponge material, which scrapes away impurities and oil stains on the surface of the aluminum wire as the aluminum wire slides through. The cleaning liquid accumulated in the annular groove 182 surrounded by the friction rings 183 on both sides is accelerated by pressure to penetrate to both sides during the contact process with the aluminum wire. Part of the cleaning liquid passes through the contact gap between the friction ring 183 and the aluminum wire to remove the cleaned impurities while ensuring the cleanliness of the friction ring 183 surface. Part of the cleaning liquid penetrates into the friction ring 183 and flows out under pressure during the contact process with the aluminum wire, repeatedly removing the oil and impurities that flow into the friction ring 183, thereby ensuring the continuous operation of the friction ring 183.

[0072] Furthermore, an external air source is provided to communicate with the water inlet pipe 14. The external air source here can be an external air pump device, which pressurizes the external air treated by the air purification device and sends it into the water inlet pipe 14. By starting the external air source, the filtered and purified air is sent into the water inlet pipe 14, and mixed with the cleaning liquid inside the water inlet pipe 14 to form a gas-liquid mixture, which participates in the cleaning of the aluminum wire inside the limit tube 12. A large number of bubbles are mixed in the gas-liquid mixture. When the bubbles come into contact with the surface of the aluminum wire, the physical filling effect of the bubbles, and when the bubbles pass through the middle inner ring position of the limit ring 18, the bubbles in the gap between the friction ring 183 and the aluminum wire surface are broken due to pressure and friction. The impact generated by the bubble breakage further promotes the fall off of oil and impurities adhered to the surface of the aluminum wire, thereby improving the purification effect of the aluminum wire.

[0073] Example 4:

[0074] On the basis of the third embodiment, the guide wire 13 adopts a tubular structure, and the outer surface of the guide wire 13 is provided with bristles for cleaning the inner wall of the limiting tube 12; in the aluminum electromagnetic wire cleaning process of the present application, in order to facilitate the movement of the aluminum wire into the limiting tube 12 and pass through the continuously curved limiting tube 12, a guide wire 13 is always provided in the limiting tube 12, and the guide wire 13 runs through the entire limiting tube 12; at the beginning of cleaning, the end of the guide wire 13 is connected to the end of the aluminum wire to be processed, and after the aluminum wire passes through the limiting tube 12 by pulling the guide wire 13, the guide wire 13 is untied and connected to the tail end of the aluminum wire, so that when the guide wire 13 re-enters the limiting tube 12, the cleaning operation of the entire bundle of aluminum wires has been completed;

[0075] In the initial state, because the limiting tube 12 is connected by multiple sections, when the multiple sections are installed end to end, the limiting ring 18 and the guide wire 13 are installed to the predetermined position. When thorough maintenance and cleaning is required, the limiting tube 12 can be disassembled and decomposed into multiple sections for maintenance and repair;

[0076] In order to facilitate the cleaning of the inner wall of the limiting tube 12, cleaning liquid is filled into the guide wire 13 of the tubular structure, so that the cleaning liquid flows out from the flushing holes 131 evenly distributed between the bristles on the surface of the guide wire 13. At the same time, the guide wire 13 is pulled back and forth so that the cleaning liquid flowing out of the flushing holes 131 cooperates with the bristles to brush the inner wall of the limiting tube 12, ensuring the cleanliness of the inner wall of the limiting tube 12 and ensuring that the subsequent normal cleaning operation of the passing aluminum wire can be carried out smoothly.

[0077] Embodiment 5:

[0078] Based on the above embodiment, an aluminum electromagnetic wire is provided. The aluminum electromagnetic wire is prepared using the above aluminum electromagnetic wire production method.

[0079] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the foregoing embodiments. The foregoing embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A method for producing aluminum magnet wire, characterized in that: The specific steps of the production method include: S1, material preparation: Prepare the aluminum wire and insulating varnish as raw materials, send them to the processing workshop via a transfer cart, mix the insulating varnish and thinner according to the selected ratio, and add them to the enameling machine as the raw materials for the impregnation process; S2, wire drawing: In the wire drawing station in the processing workshop, the aluminum wire is fed into the wire drawing machine and drawn once or multiple times according to the processing needs to obtain the required wire diameter; during the drawing process, the processing temperature is controlled at 60-120℃, and water-soluble lubricant is used for lubrication and cooling; S3, cleaning: The aluminum wire is fed into a cleaning tank of a cleaning device, passing the aluminum wire through a limiting tube in the cleaning tank. Cleaning liquid is introduced into the limiting tube so that the aluminum wire is fully in contact with the flowing cleaning liquid in the limiting tube, thereby separating oil and impurities on the surface of the aluminum wire; S4, Annealing: Using the steam annealing process, the aluminum wire is fed into the annealing furnace, and high-temperature steam is introduced to control the annealing temperature to 300-500°C. After the annealing process, a cooling fan is used for cooling; S5, varnishing: The aluminum wire cooled to 40-50°C is fed into the enamelling machine, so that the insulating varnish mixed with thinner is applied to the surface of the aluminum wire to form an insulating layer; S6, curing: feeding the aluminum wire into a drying oven, controlling the drying temperature to 300-500°C, drying and curing the insulation layer on the surface of the aluminum wire to obtain aluminum magnet wire; S7, Quality Inspection: The dimensions, mechanical properties, and electrical performance parameters of the produced aluminum magnet wire are tested to determine whether they meet the qualified standards. If qualified, the produced aluminum magnet wire is rolled, packaged, and sent to a dedicated warehouse for storage; In the above step S3, the cleaning process of the aluminum wire as the raw material of the aluminum magnet wire specifically includes: S31: First, the end of the aluminum wire to be processed is fixed to the guide wire inside the continuously curved limiting tube, and the guide wire is pulled so that the end of the aluminum wire passes through the limiting hole on one side of the cleaning tank, enters the limiting tube, and then passes through the limiting hole on the other side and exits the cleaning tank; S32: Starting a traction device for pulling the aluminum wire so that the aluminum wire continuously passes through the limiting pipe, and starting a water pump to feed the cleaning liquid in the water storage chamber at the bottom of the cleaning device from the water inlet pipe connected to the limiting pipe into the limiting pipe, and then flowing out of the limiting pipe from the water outlet pipe connected to the limiting pipe and back into the water storage chamber, thereby realizing a circulation flow of the cleaning liquid; S33: A purification component is provided in the water reservoir to separate the oily impurities that flow into the water reservoir during the cleaning process; When connecting the water inlet pipe and the water outlet pipe, one end of the water inlet pipe is connected to the pipe peak area located at the highest point of the limiting pipe in the vertical direction, and the other end is connected to the water storage chamber; one end of the water outlet pipe is connected to the pipe valley area located at the lowest point of the limiting pipe, and the other end is connected to the inside of the water storage chamber.

2. The method for producing aluminum magnet wire according to claim 1, wherein: A plurality of limiting rings are evenly arranged on both sides of the tube valley area on the inner wall of the limiting tube, so that the guide wire passes through the inner circle area of ​​each limiting ring in turn, and the cross-section of the limiting ring is trapezoidal, and a plurality of connecting holes with through-hole structures are evenly arranged at the joint between the limiting ring and the limiting tube.

3. The method for producing aluminum magnet wire according to claim 2, wherein: A plurality of guide grooves are evenly arranged on the outer surface of the limiting ring close to the corresponding pipe peak area, and the guide grooves are distributed in a ring shape around the central axis of the limiting ring.

4. The method for producing aluminum magnet wire according to claim 3, wherein: The guide groove is communicated with the annular groove on the inner ring of the limiting ring, and the cross section of the annular groove is semicircular. The surface of the inner ring of the limiting ring is provided with elastic friction rings on both sides of the guide groove.

5. The method for producing aluminum magnet wire according to claim 4, wherein: The guide wire adopts a tubular structure, and bristles are provided on the outer surface of the guide wire. The inner wall of the limit tube is cleaned by reciprocatingly pulling the guide wire located inside the limit tube.

6. The method for producing aluminum magnet wire according to claim 5, wherein: Connect the external air source to the water inlet pipe, start the external air source to send the filtered and purified air into the water inlet pipe, and mix it with the cleaning liquid inside the water inlet pipe to form a gas-liquid mixture, which participates in cleaning the aluminum wire inside the limit tube.

7. An aluminum magnet wire, characterized in that: The aluminum magnet wire is prepared using the aluminum magnet wire production method described in any one of claims 1 to 6.

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