Double-metal synchronous cooling forming device and method for aluminum-clad steel wire

Abstract

The invention discloses an aluminum-clad steel wire double-metal synchronous cooling forming device and method, and belongs to the technical field of aluminum-clad steel wire cooling processing.The aluminum-clad steel wire double-metal synchronous cooling forming device comprises a melting furnace for melting metal aluminum, a box is fixed to one side of the melting furnace, and an extrusion cylinder is arranged at the end, away from the box, of the melting furnace; through cooperation of the traction roller and the unwinding roller, a steel wire body can be conveyed and transferred, pretreatment is conducted before the steel wire body makes contact with filtrate, oxide on the surface of the steel wire body is removed, then a nanometer transition layer is sprayed on the surface of the steel wire body, and the filtrate can be better combined with the steel wire body; and after the aluminum-clad steel wire is moved out through the extrusion cylinder, the stability of the metal aluminum and the steel wire body is gradually reduced through a multi-section step-by-step cooling mode, the temperature difference between the metal aluminum and the steel wire body is maintained within a certain range, layering caused by the too large temperature difference is avoided, and the quality of the formed aluminum-clad steel wire is effectively improved.

Description

Technical Field

[0001] The present invention relates to the technical field of aluminum-clad steel wire cooling processing, and specifically relates to a device and method for synchronously cooling and forming a bimetal of aluminum-clad steel wire. Background Technique

[0002] Aluminum-clad steel is a composite product with a layer of aluminum coated on a steel material, usually in the form of a round wire, that is, a layer of aluminum is wrapped on the surface of a round steel wire, which is called an aluminum-clad steel wire. During the production of aluminum-clad steel wire, it is necessary to cool it down.

[0003] When cooling down the aluminum-clad steel wire, due to the different thermal conductivities of metallic aluminum and metallic iron, during synchronous cooling, it is impossible to cool down synchronously. At the same time, according to the principle of thermal expansion and contraction, the cooling shrinkage rates of the two metals are different, resulting in a delamination phenomenon between the aluminum outer skin and the internal metal wire, affecting the quality of the aluminum-clad steel wire. Summary of the Invention

[0004] The purpose of the present invention is to provide a device and method for synchronously cooling and forming a bimetal of aluminum-clad steel wire. First, the steel wire body is pretreated, the surface oxide is removed by plasma cleaning, and a nano-transition layer is sprayed, which can make the metallic aluminum and the steel wire better combined, avoiding the subsequent delamination due to unstable connection. At the same time, through the method of segmented cooling, the metallic aluminum and the steel wire are gradually cooled down, reducing the temperature difference change between the two, so as to avoid too large a temperature difference between the two due to the different thermal conductivities of different metals, so as to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the present invention provides the following technical solution: A device for synchronously cooling and forming a bimetal of aluminum-clad steel wire, including: A melting furnace for melting metallic aluminum, one side of the melting furnace is fixed with a box body, one end of the melting furnace away from the box body is provided with an extrusion cylinder, one end of the extrusion cylinder away from the melting furnace is connected with a cooling box, a water cooling component and an air cooling component are arranged in the cooling box, a pay-off reel is arranged in the box body, a steel wire body is wound on the pay-off reel, the steel wire body passes through the box body and the melting furnace and extends into the extrusion cylinder from the inside and then into the cooling box, and a traction roller for traction of the steel wire body is movably installed outside the cooling box through a support plate; The water cooling component and the air cooling component both include a fixed pipe, one end of the fixed pipe is connected with a delivery pipe, and a plurality of groups of connecting pipes are communicated with the outside of the fixed pipe. One end of the connecting pipe away from the fixed pipe penetrates into the cooling box and is respectively fixed with an atomizing nozzle and a jet head.

[0006] Preferably, a partition board is fixed in the inner cavity of the box body, dividing the inner cavity of the box body into a cleaning cavity and a spraying cavity. A guide roller is rotatably connected to the inner cavities of the box body and the melting furnace through bearings, and the steel wire body is in transmission connection with the guide roller.

[0007] Preferably, a pipeline is installed at the top of the spraying chamber, and a nozzle is connected to the bottom of the pipeline.

[0008] Preferably, an extrusion channel is arranged inside the extrusion cylinder. The extrusion channel is distributed in a three-stage manner, with the inner diameter gradually decreasing from the direction of the melting furnace to the cooling box and the inner diameter of each section being the same.

[0009] Preferably, two stirring shafts are rotatably connected inside the melting furnace through bearings. Stirring impellers are fixed on the outer sides of the stirring shafts. The two stirring impellers are located on the upper and lower sides of the steel wire body. One end of the stirring shaft penetrates to the outside of the melting furnace and is fixed with a belt pulley. The belt pulleys are connected by a connecting belt in a transmission manner. A fixing frame is fixed on the outside of the melting furnace, and a stirring motor is fixed on the outside of the fixing frame. The output shaft of the stirring motor is fixedly connected to the end of one of the stirring shafts.

[0010] Preferably, a heat exchange pipe is wound around the outside of the extrusion cylinder. The two ends of the heat exchange pipe are connected to a coolant circulation system, and a protective cylinder is sleeved outside the heat exchange pipe.

[0011] Preferably, a feeding motor is fixed on the outside of the box body, and the output shaft of the feeding motor is fixedly connected to one end of the feeding roller. A traction motor is fixed on the outside of the support plate, and the output shaft of the traction motor is fixedly connected to one end of the traction roller.

[0012] Preferably, two limiting wheels are installed at one end of the cooling box away from the extrusion cylinder through a mounting frame. The limiting wheels are located on the upper and lower sides of the steel wire body and are both in transmission connection with the steel wire body.

[0013] Based on an aluminum-clad steel wire bimetal synchronous cooling and forming device, an aluminum-clad steel wire bimetal synchronous cooling and forming method is also provided, including the following steps: Step 1: Place metallic aluminum in the melting furnace, use the melting furnace to melt the metallic aluminum to form aluminum liquid, and at the same time start the stirring motor. The stirring motor drives one stirring shaft and the belt pulley to rotate. Subsequently, the other stirring shaft rotates synchronously under the cooperation of the belt pulley and the connecting belt. Then, the stirring shaft stirs the aluminum liquid through the stirring impeller. Step 2: Extend the steel wire body wound on the unwinding roller from the box body into the melting furnace, then penetrate out from the extrusion cylinder, enter the cooling box, and finally wind around the outside of the traction roller. Start the traction motor and the unwinding motor to continuously convey the steel wire body. Step 3: Inject plasma into the cleaning chamber in the box body, use the plasma to clean the steel wire body. Subsequently, the steel wire body is guided along the guiding roller and enters the spraying chamber. A nano-aluminum oxide transition layer solution is sprayed onto the surface of the steel wire body through the pipeline and the nozzle to perform an activation treatment on the surface of the steel wire body. Step 4: After the steel wire body enters the molten aluminum and then enters the extrusion cylinder, the molten aluminum will adhere to the surface of the steel wire body. With the circulating flow of the coolant in the heat exchange tube, the molten aluminum is cooled. At this time, the molten aluminum gradually solidifies. Under the extrusion of the extrusion channel, the metallic aluminum wraps around the outside of the steel wire body, and the diameter of the aluminum-clad steel wire is fixed through the final sizing section. Step 5: After the aluminum-clad steel wire enters the cooling box, clean water and inert gas are sequentially introduced into the fixed tube of the connecting pipe box, so that the clean water and inert gas are sprayed out from the atomizing nozzle and the air jet head, alternately spraying and cooling the aluminum-clad steel wire to achieve a staged step-by-step cooling process, avoiding the separation of the metallic aluminum from the steel wire body.

[0014] Preferably, the melting furnace and the box body are in an environment with a vacuum degree of 10 -2 Pa, and nitrogen gas is injected into the melting furnace so that the molten aluminum wraps around the outside of the steel wire body in a nitrogen environment.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: Through the cooperation of the traction roller and the unwinding roller, the present invention can transport and transfer the steel wire body, pre-treat it before the steel wire body contacts the filtrate to remove the oxides on the surface, and then spray a nano-transition layer on the surface to make the filtrate better combine with the steel wire body. Then, after being moved out through the extrusion cylinder, through a multi-stage step-by-step cooling method, the stability of the metallic aluminum and the steel wire body is gradually reduced, and the temperature difference between the two is maintained within a certain range, avoiding delamination caused by too large a temperature difference, and effectively improving the quality of the aluminum-clad steel wire after forming.

[0016] Through the setting of two groups of limiting wheels, the present invention facilitates the guiding of the aluminum-clad steel wire moved out of the cooling box, avoiding the friction contact between the aluminum-clad steel wire and the cooling box during winding, resulting in scratches on the surface and affecting the quality of the aluminum-clad steel wire. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a three-dimensional structural schematic diagram of the present invention; Figure 2 is a three-dimensional sectional structural schematic diagram of the melting furnace and the box body of the present invention; Figure 3 is a three-dimensional sectional structural schematic diagram of the protective cylinder and the extrusion cylinder of the present invention; Figure 4 is a three-dimensional sectional top view structural schematic diagram of the cooling box of the present invention; Figure 5 is a three-dimensional side view structural schematic diagram of the cooling box of the present invention.

[0018] Reference numerals in the figure: 1, melting furnace; 2, box body; 3, extrusion cylinder; 4, cooling box; 5, unwinding roller; 6, steel wire body; 7, traction roller; 8, fixed pipe; 9, conveying pipe; 10, connecting pipe; 11, atomizing nozzle; 12, air jet head; 13, partition board; 14, cleaning chamber; 15, spraying chamber; 16, guide roller; 17, pipeline; 18, nozzle; 19, extrusion channel; 20, stirring shaft; 21, stirring impeller; 22, pulley; 23, fixing frame; 24, stirring motor; 25, heat exchange pipe; 26, protective cylinder; 27, discharging motor; 28, traction motor; 29, limiting wheel. Detailed implementation manner

[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0020] The present invention provides a Figures 1 to 5 bimetal synchronous cooling and forming device for aluminum-clad steel wire as shown in a melting furnace 1 for melting metallic aluminum, a box body 2 is fixed on one side of the melting furnace 1, an extrusion cylinder 3 is arranged at one end of the melting furnace 1 far away from the box body 2, a cooling box 4 is connected to one end of the extrusion cylinder 3 far away from the melting furnace 1, a water cooling component and an air cooling component are arranged in the cooling box 4, an unwinding roller 5 is arranged in the box body 2, a steel wire body 6 is wound on the unwinding roller 5, the steel wire body 6 passes through the box body 2 and the melting furnace 1 and extends into the extrusion cylinder 3 and then into the cooling box 4, and a traction roller 7 for traction of the steel wire body 6 is movably installed outside the cooling box 4 through a support plate; The water cooling component and the air cooling component both include a fixed pipe 8, one end of the fixed pipe 8 is connected with a conveying pipe 9, and a plurality of groups of connecting pipes 10 are communicated with the outside of the fixed pipe 8, and one end of each connecting pipe 10 far away from the fixed pipe 8 penetrates into the cooling box 4 and is respectively fixed with an atomizing nozzle 11 and an air jet head 12; Through the cooperation of the traction roller 7 and the unwinding roller 5, the steel wire body 6 can be conveyed and transferred, and pre-treatment can be carried out before the steel wire body 6 contacts the filtrate to remove oxides on the surface. Subsequently, a nano-transition layer is sprayed on the surface to make the filtrate better combine with the steel wire body 6. Then, after being moved out through the extrusion cylinder 3, through a multi-stage step-by-step cooling method, the stability of the metallic aluminum and the steel wire body 6 is gradually reduced, and the temperature difference between the two is maintained within a certain range to avoid delamination caused by too large a temperature difference, effectively improving the quality of the formed aluminum-clad steel wire.

[0021] Among them, as Figure 2 shown: A partition plate 13 is fixed inside the inner cavity of the box body 2, which divides the inner cavity of the box body 2 into a cleaning chamber 14 and a spraying chamber 15. A guiding roller 16 is rotatably connected to the inner cavities of the box body 2 and the melting furnace 1 through bearings, and the steel wire body 6 is drivingly connected to the guiding roller 16. Through the arrangement of the partition plate 13, the inner cavity of the box body 2 is divided into the cleaning chamber 14 and the spraying chamber 15. The cleaning chamber 14 uses plasma to clean the oxide on the surface of the steel wire body 6, and a nano-transition layer is sprayed on the surface of the cleaned steel wire body 6 in the spraying chamber 15. At the same time, the arrangement of the guiding roller 16 facilitates the guiding of the steel wire body 6.

[0022] Further, as Figure 2 shown: A pipeline 17 is installed at the top of the spraying chamber 15, and a nozzle 18 is connected to the bottom of the pipeline 17. Nano-aluminum oxide coating is conveyed into the nozzle 18 through the pipeline 17 to spray the surface of the steel wire body 6, so that an aluminum oxide coating adheres to the surface of the steel wire body 6.

[0023] Preferably, as Figure 3 shown: An extrusion channel 19 is arranged inside the extrusion cylinder 3. The extrusion channel 19 is distributed in a three-section form, and the inner diameter gradually becomes smaller from the direction of the melting furnace 1 to the cooling box 4, and the inner diameter of each section is the same. By defining the internal structure of the extrusion channel 19, it is convenient to gradually reduce the space to adjust the thickness of the metal aluminum skin and ensure the uniformity of the aluminum skin thickness on the surface of the steel wire body 6.

[0024] It should be noted that, as Figure 2 shown: Two groups of stirring shafts 20 are rotatably connected inside the melting furnace 1 through bearings. Stirring impellers 21 are fixed on the outer sides of the stirring shafts 20. The two groups of stirring impellers 21 are located on the upper and lower sides of the steel wire body 6. One end of the stirring shaft 20 penetrates to the outside of the melting furnace 1 and is fixed with a pulley 22. The pulley 22 is drivingly connected through a connecting belt. A fixing frame 23 is fixed on the outside of the melting furnace 1, and a stirring motor 24 is fixed on the outside of the fixing frame 23. The output shaft of the stirring motor 24 is fixedly connected to the end of one group of stirring shafts 20. By driving one group of stirring shafts 20 to rotate by the stirring motor 24, then the other group of stirring shafts 20 is synchronously driven through the cooperation of the pulley 22 and the connecting belt, and the stirring impellers 21 cooperate to stir the molten aluminum in the melting furnace 1.

[0025] In a further preferred embodiment, as Figure 3 shown: A heat exchange tube 25 is wound around the outer side of the extrusion cylinder 3. Both ends of the heat exchange tube 25 are connected to a coolant circulation system. A protective cylinder 26 is sleeved outside the heat exchange tube 25. Through the arrangement of the heat exchange tube 25, it is convenient to cool the molten aluminum inside from the outside of the extrusion cylinder 3, so that the molten aluminum solidifies and wraps around the outer side of the steel wire body 6. The arrangement of the protective cylinder 26 is used to maintain the temperature stability and achieve the maximum degree of heat exchange treatment.

[0026] In addition, as Figures 1 - 2 shown: A feeding motor 27 is fixed on the outer side of the box body 2. The output shaft of the feeding motor 27 is fixedly connected to one end of a feeding roller. A traction motor 28 is fixed on the outer side of the support plate. The output shaft of the traction motor 28 is fixedly connected to one end of the traction roller 7. By driving the feeding roller with the feeding motor 27 and driving the traction roller 7 with the traction motor 28, the steel wire body 6 is transferred from the box body 2 to the cooling box 4, realizing the processing of wrapping the surface with aluminum skin.

[0027] In this embodiment, as Figure 5 shown: Two sets of limiting wheels 29 are installed at one end of the cooling box 4 away from the extrusion cylinder 3 through a mounting frame. The limiting wheels 29 are located on the upper and lower sides of the steel wire body 6 and are both in transmission connection with the steel wire body 6. Through the arrangement of the two sets of limiting wheels 29, it is convenient to guide the aluminum-clad steel wire removed from the cooling box 4, avoiding the aluminum-clad steel wire from rubbing against the cooling box 4 during winding, resulting in scratches on the surface and affecting the quality of the aluminum-clad steel wire.

[0028] Based on a bimetal synchronous cooling and forming device for aluminum-clad steel wire, a bimetal synchronous cooling and forming method for aluminum-clad steel wire is also provided, including the following steps: Step 1: Place metallic aluminum in the melting furnace 1, use the melting furnace 1 to melt the metallic aluminum to form molten aluminum. At the same time, start the stirring motor 24. The stirring motor 24 drives a set of stirring shafts 20 and belt pulleys 22 to rotate. Subsequently, the other set of stirring shafts 20 rotates synchronously under the cooperation of the belt pulleys 22 and the connecting belt. Then, the stirring shafts 20 stir the molten aluminum through the stirring impellers 21. Step 2: Extend the steel wire body 6 wound on the unwinding roller 5 from the box body 2 into the melting furnace 1, then pass through the extrusion cylinder 3 and enter the cooling box 4, and finally wind around the outer side of the traction roller 7. Start the traction motor 28 and the unwinding motor, and continuously convey the steel wire body 6. Step 3: Inject plasma into the cleaning chamber 14 in the box body 2, use the plasma to clean the steel wire body 6. Subsequently, the steel wire body 6 is guided along the guide roller 16 and enters the spraying chamber 15. Through the pipeline 17 and the nozzle 18, a nano-aluminum oxide transition layer solution is sprayed on the surface of the steel wire body 6 to activate the surface of the steel wire body 6. Step Four: After the steel wire body 6 enters the molten aluminum and then enters the extrusion cylinder 3, the molten aluminum will adhere to the surface of the steel wire body 6. With the circulating flow of the coolant in the heat exchange tube 25, the molten aluminum is cooled. At this time, the molten aluminum gradually solidifies. Under the extrusion of the extrusion channel 19, the metallic aluminum wraps around the outside of the steel wire body 6, and the diameter of the aluminum-clad steel wire is fixed through the final sizing section. Step Five: After the aluminum-clad steel wire enters the cooling box 4, clean water and inert gas are sequentially introduced into the fixed tube 8 through the connecting tube 10. The clean water and inert gas are sprayed out from the atomizing nozzle 11 and the air jet head 12, alternately spraying and cooling the aluminum-clad steel wire to achieve staged step-by-step cooling treatment and avoid the separation of the metallic aluminum from the steel wire body 6.

[0029] The melting furnace 1 and the box body 2 are in an environment with a vacuum degree of 10 -2 Pa. Nitrogen is injected into the melting furnace 1 so that the molten aluminum wraps around the outside of the steel wire body 6 in a nitrogen environment. By limiting the environment inside the box body 2, the cleaning efficiency of the oxides on the surface of the steel wire body 6 is ensured, and at the same time, the molten aluminum is better wrapped around the surface of the steel wire body 6 under nitrogen protection.

[0030] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An aluminum-clad steel wire bimetallic synchronous cooling and forming device, characterized in that, Including: A melting furnace (1) for melting metallic aluminum. One side of the melting furnace (1) is fixed with a box body (2). One end of the melting furnace (1) away from the box body (2) is provided with an extrusion cylinder (3). One end of the extrusion cylinder (3) away from the melting furnace (1) is connected with a cooling box (4). A water cooling component and an air cooling component are arranged in the cooling box (4). A unwinding roller (5) is arranged in the box body (2). A steel wire body (6) is wound on the unwinding roller (5). The steel wire body (6) passes through the box body (2) and the melting furnace (1) and extends into the extrusion cylinder (3) and then into the cooling box (4). Outside the cooling box (4), a traction roller (7) for traction of the steel wire body (6) is movably installed through a support plate; The water cooling component and the air cooling component both include a fixed pipe (8). One end of the fixed pipe (8) is connected with a delivery pipe (9). A plurality of groups of connecting pipes (10) are communicated with the outside of the fixed pipe (8). One end of the connecting pipe (10) away from the fixed pipe (8) penetrates into the cooling box (4) and is respectively fixed with an atomizing nozzle (11) and an air jet head (12).

2. The bimetallic synchronous cooling and forming device for aluminum-clad steel wire according to claim 1, characterized in that: A partition plate (13) is fixed in the inner cavity of the box body (2), dividing the inner cavity of the box body (2) into a cleaning cavity (14) and a spraying cavity (15). A guiding roller (16) is rotationally connected to the inner cavities of the box body (2) and the melting furnace (1) through bearings. The steel wire body (6) is in transmission connection with the guiding roller (16).

3. The aluminum-clad steel wire bimetallic synchronous cooling and forming device according to claim 2, wherein: A pipeline (17) is installed at the top of the spraying cavity (15). A nozzle (18) is communicated with the bottom of the pipeline (17).

4. The bimetal synchronous cooling and forming device for aluminum-clad steel wire according to claim 1, wherein: An extrusion channel (19) is arranged inside the extrusion cylinder (3). The extrusion channel (19) is distributed in a three-section type, and the inner diameter gradually becomes smaller from the direction of the melting furnace (1) to the cooling box (4) and the inner diameter of each section is the same.

5. The bimetal synchronous cooling and forming device for aluminum-clad steel wire according to claim 1, characterized in that: Two groups of stirring shafts (20) are rotationally connected to the inside of the melting furnace (1) through bearings. Stirring impellers (21) are fixed on the outer sides of the stirring shafts (20). The two groups of stirring impellers (21) are located on the upper and lower sides of the steel wire body (6). One end of the stirring shaft (20) penetrates to the outside of the melting furnace (1) and is fixed with a belt pulley (22). The belt pulleys (22) are in transmission connection through a connecting belt. A fixing frame (23) is fixed on the outside of the melting furnace (1). A stirring motor (24) is fixed on the outside of the fixing frame (23). The output shaft of the stirring motor (24) is fixedly connected with the end of one group of stirring shafts (20).

6. The aluminum-clad steel wire bimetallic synchronous cooling and forming device according to claim 1, wherein: A heat exchange pipe (25) is wound on the outside of the extrusion cylinder (3). The two ends of the heat exchange pipe (25) are connected with a coolant circulation system. A protective cylinder (26) is sleeved on the outside of the heat exchange pipe (25).

7. An aluminum-clad steel wire bimetallic synchronous cooling and forming device according to claim 1, characterized in that: A feeding motor (27) is fixed on the outside of the box body (2). The output shaft of the feeding motor (27) is fixedly connected with one end of a feeding roller. A traction motor (28) is fixed on the outside of the support plate. The output shaft of the traction motor (28) is fixedly connected with one end of the traction roller (7).

8. The bimetal synchronous cooling and forming device for aluminum-clad steel wire according to claim 1, wherein: Two sets of limiting wheels (29) are installed at one end of the cooling box (4) far from the extrusion cylinder (3) through a mounting frame. The limiting wheels (29) are located on the upper and lower sides of the steel wire body (6) and are both in driving connection with the steel wire body (6).

9. A method for synchronously cooling and forming a bimetallic aluminum-clad steel wire, based on the bimetallic aluminum-clad steel wire synchronous cooling and forming device shown in any one of the above claims 1-8, characterized in that, It includes the following steps: Step 1: Place metallic aluminum in the melting furnace (1), use the melting furnace (1) to melt the metallic aluminum to form molten aluminum, and at the same time start the stirring motor (24). The stirring motor (24) drives a set of stirring shafts (20) and pulleys (22) to rotate. Subsequently, the other set of stirring shafts (20) rotates synchronously under the cooperation of the pulley (22) and the connecting belt. Then, the stirring shaft (20) stirs the molten aluminum through the stirring impeller (21). Step 2: Extend the steel wire body (6) wound on the unwinding roller (5) out of the box body (2) into the melting furnace (1), then pass through the extrusion cylinder (3), enter the cooling box (4), and finally wind around the outside of the traction roller (7). Start the traction motor (28) and the unwinding motor, and continuously convey the steel wire body (6). Step 3: Inject plasma into the cleaning chamber (14) in the box body (2), use the plasma to clean the steel wire body (6). Subsequently, the steel wire body (6) is guided along the guide roller (16) and enters the spraying chamber (15). Through the pipeline (17) and the nozzle (18), spray the nano-aluminum oxide transition layer solution on the surface of the steel wire body (6) to activate the surface of the steel wire body (6). Step 4: After the steel wire body (6) enters the molten aluminum and then enters the extrusion cylinder (3), the molten aluminum will adhere to the surface of the steel wire body (6). With the circulation of the coolant in the heat exchange tube (25), the molten aluminum is cooled. At this time, the molten aluminum gradually solidifies, and under the extrusion of the extrusion channel (19), the metallic aluminum wraps around the outside of the steel wire body (6), and the diameter of the aluminum-clad steel wire is fixed through the final sizing section. Step 5: After the aluminum-clad steel wire enters the cooling box (4), successively introduce clean water and inert gas into the fixed pipe (8) through the connecting pipe (10), so that the clean water and inert gas are sprayed out from the atomizing nozzle (11) and the air jet head (12), and alternately spray and cool the aluminum-clad steel wire to achieve staged step-by-step cooling treatment and avoid the separation of the metallic aluminum from the steel wire body (6).

10. A method for synchronous cooling and forming of an aluminum-clad steel bimetal according to claim 9, characterized in that: The melting furnace (1) and the box body (2) are in an environment with a vacuum degree of 10-2 Pa. Nitrogen is injected into the melting furnace (1) so that the molten aluminum wraps around the outside of the steel wire body (6) in a nitrogen environment.

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