Manufacturing and forming device and forming method for alloy wire

Abstract

The invention discloses an alloy wire manufacturing and forming device and method, and belongs to the technical field of metal wire forming. At present, most manufacturing modes of magnesium alloy wires are limited to an extrusion method, a drawing method and the like, the extrusion method and the drawing method are tedious in process, and the prepared alloy wires have the main defects of serious high-temperature oxidation, risk of grain coarsening, low processing efficiency, quick mold abrasion, high energy consumption, difficulty in surface quality control, non-uniform performance and the like. The device comprises: a melting device for melting an alloy raw material to obtain a metal melt; the rotatable roller is used for throwing threads; the melting equipment and the roller are arranged in the closed cavity and are used for providing a protective gas atmosphere; and the roller is driven to rotate, the rim of the roller is immersed in the molten pool of the metal melt, the metal melt attached to the rim of the roller flies out in the tangential direction of the rim of the roller under the action of centrifugal force, and the metal melt is condensed to form the continuous alloy wire. The preparation of the alloy wire is realized mainly based on a melt drawing technology.

Description

Technical Field

[0001] This application relates to the field of metal wire forming technology, and in particular to an alloy wire manufacturing and forming apparatus and forming method. Background Technology

[0002] In the field of arc additive manufacturing, EV31 alloy wire maintains high specific strength and good processing performance while being lightweight, facilitating subsequent fine processing. Currently, the manufacturing methods for magnesium alloy wires are mostly limited to extrusion and drawing methods. Extrusion and drawing methods are cumbersome processes, and the alloy wires produced suffer from major drawbacks such as severe high-temperature oxidation, risk of grain coarsening, low processing efficiency, rapid die wear, high energy consumption, difficulty in controlling surface quality, and uneven performance, making it difficult to guarantee the quality of the wire. Summary of the Invention

[0003] In view of this, this application provides an alloy wire manufacturing and forming apparatus and forming method, which utilizes the rotation of rollers to carry molten metal out of the molten pool, and the molten metal adhering to the rim of the rollers is thrown out tangentially along the rim of the rollers by centrifugal force, forming a continuous alloy wire after solidification.

[0004] To solve the above-mentioned technical problems, the technical solution adopted in this application is as follows:

[0005] An apparatus for manufacturing and forming alloy wire, comprising:

[0006] Melting equipment is used to melt alloy raw materials to obtain molten metal.

[0007] Rotatable rollers for spinning yarn;

[0008] A closed cavity, melting equipment and rollers are set inside the closed cavity to provide a protective gas atmosphere;

[0009] The drive roller rotates, and the rim of the roller is immersed in the molten pool of metal. The molten metal adhering to the rim of the roller is thrown out tangentially along the rim of the roller by centrifugal force. The molten metal solidifies to form a continuous alloy wire.

[0010] Furthermore, the melting device is a crucible body heated by resistance wire.

[0011] Furthermore, one side wall of the crucible body is recessed inward to form a spherical crown-shaped side wall; the roller is located on the side wall of the crucible body away from the spherical crown-shaped side wall.

[0012] Furthermore, a scraper is provided on the roller, and the scraper has a cutting edge that is in contact with the surface of the roller to scrape off the molten metal adhering to the rim of the roller.

[0013] Furthermore, the melting equipment includes an electromagnetic induction crucible and a supporting crucible. The electromagnetic induction crucible and the supporting crucible are connected by a pipe, and the molten metal is introduced into the supporting crucible. The rim of the roller is immersed in the molten metal in the supporting crucible.

[0014] Furthermore, a wind deflector is provided on the roller, and an opening is provided on the wind deflector for the roller to rotate, and the edge of the opening is set as a blade.

[0015] Furthermore, it also includes a vibrating conveyor, located on one side below the melting equipment, for supporting the alloy wires.

[0016] Furthermore, the vibrating conveyor is equipped with a rubber pad, and the upper surface of the rubber pad is provided with a wire guide groove along the conveying direction.

[0017] Furthermore, the roller is mounted on the axle and can rotate with the axle. The axle is a tubular structure and is connected to a cold water pipe for cooling the roller.

[0018] Another technical solution adopted in this application is:

[0019] A method for manufacturing and forming an alloy wire, comprising:

[0020] S1, introduce protective gas into the sealed cavity to form a protective gas atmosphere until the standard atmospheric pressure is reached;

[0021] S2, The melting equipment heats the alloy raw material to a molten state;

[0022] S3, preheat the roller and drive the roller to rotate, the rim of the roller is immersed into the molten pool of the metal;

[0023] S4, the molten metal adhering to the rim of the roller is propelled out tangentially along the rim of the roller by centrifugal force, and the molten metal forms a continuous alloy wire under the condensation of the protective gas in the sealed cavity.

[0024] S5, the alloy wire falls onto the upper surface of the vibrating conveyor and is collected;

[0025] S6, heat treatment is performed on the surface of the alloy wire.

[0026] The beneficial effects of this application compared to the prior art are:

[0027] 1. This application designs one sidewall of the crucible body as a spherical cap shape, while simultaneously increasing the distance between the roller and the spherical cap-shaped sidewall. This allows the spun wire to smoothly pass over the surface of the spherical cap-shaped sidewall during the wire-spinning process, preventing the tangentially ejected wire from impacting the crucible wall and hindering its formation. Furthermore, the spherical cap-shaped sidewall design increases the surface area of ​​the crucible body, allowing for the placement of more resistance wires within the crucible to raise the heating temperature and ensure the alloy raw material can be successfully melted into molten metal. Simultaneously, the spherical cap-shaped sidewall design also reduces the volume of the crucible body, thus reducing energy consumption. In addition, the roller's proximity to the crucible wall allows the crucible body to act as a baffle as the crucible body moves upwards, preventing the generation of a wind field on the surface of the molten pool during high-speed roller rotation, which could cause molten pool vibration and reduce the quality of the prepared wire.

[0028] 2. This application provides a scraper on the roller. When the roller rotates once, the molten metal remaining on the roller rim is scraped off by the cutting edge of the scraper, so that when the roller rim is immersed in the molten pool, there is no molten metal remaining on the surface, thus improving the quality of the alloy wire.

[0029] 3. This application provides a baffle plate on the roller, which can prevent the generation of wind field on the surface of the molten pool when the roller rotates at high speed, thus avoiding the molten pool from vibrating and reducing the quality of the prepared wire.

[0030] 4. The design of the vibrating conveyor in this application allows the prepared alloy wire to fall onto the rubber pad on the vibrating conveyor. The alloy wire is then vibrated into the grooves of the rubber pad and moves orderly within the grooves along the conveying direction of the vibrating conveyor, thereby achieving the purpose of organizing the alloy wire and preventing it from falling all at the same position and becoming tangled. In addition, the design of the rubber pad can also reduce damage to the wire caused by stress when it falls onto the vibrating conveyor and during the conveying process. Furthermore, the vibrating conveyor uses low-frequency vibration, and the inclination angle of the vibrating conveyor does not exceed 10°, which can prevent the alloy wire from breaking due to excessive stress. Attached Figure Description

[0031] The accompanying drawings, which form part of this application, are provided to further illustrate this application.

[0032] Figure 1 This is a schematic diagram of the structure of the crucible body and rollers in Example 1.

[0033] Figure 2 This is a schematic diagram showing the state of the roller immersed in molten metal.

[0034] Figure 3 This is a schematic diagram of the structure of an alloy wire manufacturing and forming device for Example 2 (with the sealed cavity and vibrating conveyor removed).

[0035] Figure 4This is a schematic diagram of the assembly between the scraper and the roller in Example 1.

[0036] Figure 5 This is a schematic diagram of a vibrating conveyor.

[0037] Figure 6 This is a schematic diagram of the rubber pad structure.

[0038] Figure 7 This is a schematic diagram of the structure of an alloy wire manufacturing and forming apparatus according to Example 1.

[0039] Figure 8 This is a magnified view of the EV31 filament obtained in Example 1.

[0040] Figure 9 This is a photograph of the EV31 filament obtained in Example 1.

[0041] Figure 10 This is a photograph of the EV31 filament obtained in Example 2.

[0042] Explanation of reference numerals in the attached figures:

[0043] 1. Crucible body; 1-1. Spherical crown-shaped sidewall; 2. Electromagnetic induction crucible; 3. Container crucible; 4. Roller; 5. Axle; 6. Sealed cavity; 7. Sleeve; 8. Scraper; 9. Vibrating conveyor; 10. Rubber pad; 10-1. Wire guide groove; 11. Winding roller. Detailed Implementation

[0044] The invention described in this application will now be described in detail with reference to the accompanying drawings and specific embodiments. Specific implementation method one:

[0046] See Figure 1 This embodiment discloses an alloy wire manufacturing and forming apparatus, which mainly utilizes melt drawing technology to prepare alloy wire. Specifically, it includes a melting device, a rotatable roller 4, and a sealed cavity 6. The melting device and roller 4 are disposed within the sealed cavity 6, which provides a protective gas atmosphere for the drawing of the melt. The melting device is used to melt the alloy raw material to obtain molten metal. The rotatable roller 4 is used for wire spinning.

[0047] See Figure 1 In this embodiment, the melting device is a crucible body 1 heated by resistance wire. Compared with electromagnetic induction heating, resistance wire heating can avoid disturbance of the molten pool of the metal, thereby improving the forming quality of the alloy wire.

[0048] In this embodiment, one sidewall of the crucible body 1 is recessed inward to form a spherical crown-shaped sidewall 1-1. The roller 4 is disposed on the sidewall of the crucible body 1 away from the spherical crown-shaped sidewall 1-1, and the closest distance between the rim of the roller 4 and the sidewall of the crucible body 1 is preferably 10 mm.

[0049] During the wire spinning process, as the molten metal forms wires, the liquid level inside the crucible 1 gradually decreases. The roller 4 remains stationary while the crucible 1 gradually moves upwards. This causes the roller 4 to penetrate deeper into the crucible 1. Wires that fly tangentially along the rim of the roller 4 may strike the crucible wall and fall back into the crucible 1, failing to form wires successfully. In this embodiment, one sidewall of the crucible 1 is designed as a spherical crown shape, and the distance between the roller 4 and the spherical crown-shaped sidewall is increased. This allows the wires spun out by the roller 4 to smoothly pass over the surface of the spherical crown-shaped sidewall, preventing tangentially flying wires from striking the crucible wall and failing to form wires. Furthermore, the spherical crown-shaped sidewall 1-1 increases the surface area of ​​the crucible 1 wall, allowing for the arrangement of more resistance wires within the crucible 1 to increase the heating temperature and ensure that the alloy raw material can be successfully melted into molten metal. Simultaneously, the spherical crown-shaped sidewall 1-1 also reduces the volume of the crucible 1, decreasing the crucible's energy consumption. In addition, the roller 4 is designed close to the crucible wall. As the crucible body 1 moves upward, the crucible wall can be used as a baffle to prevent the roller 4 from generating a wind field on the surface of the molten pool when it rotates at high speed, which would cause the molten pool to vibrate and reduce the quality of the prepared wire.

[0050] See Figure 4 This embodiment also includes an axle 5 and a roller drive assembly (not shown in the figure). The roller 4 is sleeved on the axle 5 and can rotate with the axle 5. The roller drive assembly is located on one side of the axle 5 and is drivenly connected to the axle 5, driving the axle 5 to rotate around its own central axis. The roller drive assembly is preferably a synchronous belt drive assembly.

[0051] In this embodiment, the axle 5 is a tubular structure, with both ends connected to an inlet pipe and an outlet pipe (not shown in the figure) via slip rings. When the roller 4 rotates at high speed, cooling water is introduced into the axle 5 through the inlet pipe. The cooling water can reduce the temperature of the roller 4, allowing the molten metal adhering to the rim of the roller 4 to be initially cooled. As the molten metal flies out tangentially along the rim of the roller 4, it can be smoothly connected into alloy wire.

[0052] See Figure 4 In this embodiment, the roller 4 is equipped with a scraper 8 assembly for scraping away residual molten metal on the rim of the roller 4. The scraper 8 assembly includes a sleeve 7 and a scraper 8. Two sleeves 7 are provided and respectively fitted onto the axles 5 on both sides of the roller 4. The sleeves 7 can rotate around the central axis of the axles 5. The scraper 8 has a triangular cutting edge, which is fitted onto the roller 4 and fixedly connected to the sleeves 7 on both sides of the roller 4. The cutting edge is in contact with the surface of the roller 4, especially the surface of the rim of the roller 4.

[0053] Before the roller 4 rotates, adjust the position of the scraper 8 so that it is in front of the lowest rim of the roller 4 (e.g., Figure 3 (as shown in the image), and then hold it still. With each rotation of the roller 4, the molten metal remaining on the rim of the roller 4 is scraped off by the cutting edge of the scraper 8, so that when the rim of the roller 4 is immersed in the molten pool, there is no molten metal remaining on the surface, thus improving the quality of the alloy wire.

[0054] See Figure 5 This embodiment also includes a vibrating conveyor 9 and a winding roller 11. The vibrating conveyor 9 is located on one side below the melting equipment and is used to support the alloy wire. A rubber pad 10 is provided on the vibrating conveyor 9, and a wire guide groove 10-1 is provided on the upper surface of the rubber pad 10 along the conveying direction. The groove depth of the wire guide groove 10-1 is about 1 to 2 mm. The winding roller 11 is located at the outlet of the vibrating conveyor 9 and is used to wind the alloy wire.

[0055] It should be noted that after the molten metal flying off the rim of roller 4 solidifies into alloy wire, it will break into multiple segments due to gravity. When the alloy wire falls onto the vibrating conveyor 9, it is vibrated into the groove of the rubber pad 10 by the vibration of the conveyor 9, and moves orderly within the groove along the conveying direction of the conveyor 9, thus achieving the purpose of organizing the alloy wire and preventing it from falling to the same position and tangling. The alloy wire is then wound onto the winding roller 11 to obtain a coil of alloy wire. In addition, the rubber pad 10 on the vibrating conveyor 9 can reduce the damage caused by the force when the wire falls onto the vibrating conveyor 9 and during the conveying process. Furthermore, because the wire is thin, it is brittle when the alloy wire is EV31 alloy and is prone to breakage. Therefore, the vibrating conveyor 9 needs to use a low vibration frequency, about 10-30Hz, and the inclination angle of the vibrating conveyor 9 should not exceed 10° to avoid the alloy wire breaking due to excessive force. Specific Implementation Method Two:

[0057] See Figure 3 The difference between this embodiment and the first embodiment is that the melting device in this embodiment includes an electromagnetic induction crucible 2 and a holding crucible 3. The electromagnetic induction crucible 2 and the holding crucible 3 are connected by a pipe. The outlet of the pipe is located at the bottom or near the bottom of the holding crucible 3, and a flow meter is provided on the pipe.

[0058] The electromagnetic induction crucible 2 melts the alloy raw material into a molten metal, which is then transported through a pipeline to the holding crucible 3. The conveying speed of the molten metal is controlled by a flow meter. The rim of the roller 4 is immersed in the molten metal in the holding crucible 3, thereby adhering the molten metal and spinning it into wire. In this embodiment, the electromagnetic induction crucible 2 melts the metal raw material into a molten metal and injects it into the holding crucible 3. At the same time, the molten metal enters from below the holding crucible 3, which avoids disturbing the upper molten pool in the holding crucible 3 with the replenished molten metal, thereby improving the quality of the alloy wire.

[0059] See Figure 3 In this embodiment, a baffle plate 12 is fitted onto the axle 5. The baffle plate 12 has an opening for the roller 4 to rotate, and the edge of the opening is set as a blade. This prevents the airflow brought in by the high-speed rotation of the roller 4 from disturbing the surface of the molten pool and creating a wind field, thus avoiding molten pool vibration. It also allows for timely cleaning of residual molten material adhering to the roller rim, further improving the quality of the prepared wire. Specific implementation method three:

[0061] This embodiment is based on Specific Embodiment One. This embodiment provides a forming method for an alloy wire manufacturing forming apparatus, the forming process of which is as follows:

[0062] S1. Check the airtightness of the sealed cavity 6. Evacuate the sealed cavity 6 and then introduce a protective gas to form a protective gas atmosphere. The protective gas is preferably an inert gas such as argon. Continue until the sealed cavity 6 reaches the standard atmospheric pressure. This design can prevent the molten metal from reacting with the air at high temperature, which would affect the quality of the alloy wire.

[0063] S2, add alloy raw materials into crucible 1, and heat the alloy raw materials in crucible 1 to a molten state using a resistance wire;

[0064] S3, preheating roller 4, the roller drive assembly drives the roller 4 to rotate through the wheel shaft 5, the rim of the roller 4 is immersed in the molten pool of the metal; cooling water is introduced into the wheel shaft 5 to initially cool the metal molten material adhering to the rim of the roller 4; the metal molten material adhering to the rim of the roller 4 is thrown out tangentially along the rim of the roller 4 by centrifugal force, and the metal molten material forms a continuous alloy wire under the condensation of the protective gas in the sealed cavity 6; as the alloy wire is prepared, the crucible body 1 gradually moves upward;

[0065] S4, the condensed alloy wire falls onto the vibrating conveyor 9. As the vibrating conveyor 9 vibrates, the alloy wire is vibrated into the groove of the rubber pad 10 and moves in the groove along the conveying direction of the vibrating conveyor 9, thereby achieving the purpose of tidying up the alloy wire.

[0066] S5, the alloy wire is wound onto the winding roller 11 to obtain a coiled alloy wire.

[0067] S6 involves heat-treating the surface of the alloy wire to obtain the desired alloy wire. Specific implementation method four:

[0069] This embodiment is based on specific embodiment two. This embodiment provides a forming method for an alloy wire manufacturing forming apparatus, and the forming process is as follows:

[0070] S1. Check the airtightness of the sealed cavity 6. Evacuate the sealed cavity 6 and then introduce a protective gas to form a protective gas atmosphere. The protective gas is preferably an inert gas such as argon. Continue until the sealed cavity 6 reaches the standard atmospheric pressure. This design can prevent the molten metal from reacting with the air at high temperature, which would affect the quality of the alloy wire.

[0071] S2, add alloy raw materials into electromagnetic induction crucible 2, heat the alloy raw materials in electromagnetic induction crucible 2 to a molten state, and then pass them into the container crucible 3 through a pipe;

[0072] S3, preheating roller 4, the roller drive assembly drives roller 4 to rotate through roller shaft 5, the rim of roller 4 is immersed in the molten pool of metal; cooling water is introduced into roller shaft 5 to initially cool the molten metal adhering to the rim of roller 4; the molten metal adhering to the rim of roller 4 is thrown out tangentially along the rim of roller 4 by centrifugal force, the molten metal forms a continuous alloy wire under the condensation of the protective gas in the sealed cavity 6; as the alloy wire is prepared, magnesium alloy molten liquid is continuously introduced into the holding crucible by electromagnetic induction crucible 2, the feeding speed is 10 to 100 μm / s;

[0073] S4, the condensed alloy wire falls onto the vibrating conveyor 9. As the vibrating conveyor 9 vibrates, the alloy wire is vibrated into the groove of the rubber pad 10 and moves in the groove along the conveying direction of the vibrating conveyor 9, thereby achieving the purpose of tidying up the alloy wire.

[0074] S5, the alloy wire is wound onto the winding roller 11 to obtain a coiled alloy wire.

[0075] S6 involves heat-treating the surface of the alloy wire to obtain the desired alloy wire.

[0076] Therefore, this application utilizes the rotation of roller 4 to carry the molten metal out of the molten pool and uses centrifugal force to fling the molten metal away. Since the entire process is continuous, the ejected molten metal is continuous, forming a continuous alloy wire after cooling. This preparation method has high production efficiency and low cost. Furthermore, during the molten metal fiber forming process, i.e., during the cooling process in the air, its own surface tension causes surface rounding, resulting in alloy wires with good shape and performance. In addition, through a series of designs including the scraper 8, roller 4 cooling, baffle plate 12, and vibrating conveyor 9, the quality of the alloy wire can be improved, and mass production of the wire can be achieved.

[0077] The following section provides a detailed explanation of the two molding devices and methods described above, using the production of EV31 filament as an example.

[0078] Example 1:

[0079] Preparation: Magnesium alloy rods are selected as the alloy raw material for the production of EV31 wire. Due to the high reactivity of magnesium alloys, in order to avoid reactions between the rollers, melting equipment and magnesium alloy raw materials, and to obtain the crucible body of the required shape, this embodiment selects a crucible body made of boron nitride and rollers made of tungsten alloy.

[0080] The crucible body has a spherical cap-shaped sidewall with a radius of 700 mm, a height of 500 mm at the spherical cap-shaped sidewall, a vertical wall height of 400 mm opposite the spherical cap-shaped sidewall, and an inner diameter of 500 mm at the bottom. The crucible body wall thickness is 10 mm. The roller diameter is 320 mm, and the rim angle is 60° (adjusted according to the required wire diameter, ranging from 30° to 90°).

[0081] Assembly of the forming device: Place the crucible body in the sealed cavity. Mount the scraper on the axle and fix it in place, with the angle between the scraper and the vertical plane being 30°. Place the roller on the side of the crucible body away from the spherical cap-shaped sidewall, with the distance between the roller rim and the vertical wall being 10 mm. Set the vibrating conveyor and winding roller in the sealed cavity, positioned where the filament is falling. The angle between the vibrating conveyor and the horizontal plane is 10°. Fix the rubber pad with the filament guide groove to the vibrating conveyor.

[0082] EV31 filament preparation:

[0083] S1. Check the airtightness of the sealed cavity 6. Evacuate the sealed cavity 6 and then introduce argon gas until the gas pressure inside the sealed cavity 6 reaches the standard atmospheric pressure.

[0084] S2, add a magnesium alloy rod into crucible 1, and heat the magnesium alloy rod in crucible 1 to a molten state using a resistance wire. The heating temperature is 700℃. After the magnesium alloy melts, a molten pool is formed at the top due to surface tension.

[0085] S3, set the vibration frequency of the vibrating conveyor 9 to 20 Hz;

[0086] S4, preheating roller 4, the roller drive assembly drives the roller 4 to rotate via the wheel shaft 5, the roller speed is 30 m / s; the rim of the roller 4 is immersed in the molten pool of the metal; cooling water is introduced into the wheel shaft 5 to initially cool the metal molten material adhering to the rim of the roller 4; the metal molten material adhering to the rim of the roller 4 is thrown out tangentially along the rim of the roller 4 by centrifugal force, and the metal molten material forms a continuous alloy wire under the condensation of the protective gas in the sealed cavity 6; as the alloy wire is prepared, the crucible body 1 gradually moves upward, the rising speed of the crucible body 1 is 9 μm / s;

[0087] S5, the condensed alloy wire falls onto the vibrating conveyor 9. As the vibrating conveyor 9 vibrates, the alloy wire is vibrated into the groove of the rubber pad 10 and moves in the groove along the conveying direction of the vibrating conveyor 9, thereby achieving the purpose of tidying up the alloy wire.

[0088] S6, the alloy wire is wound onto the winding roller 11 to obtain a coiled alloy wire.

[0089] S7. The filament is removed and subjected to surface heat treatment to form EV31 filament with a diameter of less than 30 μm for arc additive manufacturing.

[0090] Example 2:

[0091] Preparation: Magnesium alloy rods were selected as the alloy raw material for the production of EV31 wire. Due to the high reactivity of magnesium alloys, to prevent reactions between the rollers, melting equipment, and the magnesium alloy raw material, and to obtain the desired crucible shape, this embodiment uses a boron nitride crucible and tungsten alloy rollers. The baffle plate is 300mm long and 180mm wide.

[0092] The crucible is cylindrical, with a height of 100 mm, an inner diameter of 400 mm, and a wall thickness of 10 mm. The roller has a diameter of 320 mm and an rim angle of 60° (adjusted according to the required wire diameter, ranging from 30° to 90°).

[0093] Assembly of the forming device: Place the crucible in the sealed cavity. Install and fix the baffle plate on the axle, with an angle of 30° between the baffle plate and the vertical plane. Place the roller on the side of the crucible body away from the spherical cap-shaped sidewall, with a distance of 10 mm between the roller rim and the vertical wall. Set the vibrating conveyor and winding roller in the sealed cavity, positioned where the filament falls. The angle between the vibrating conveyor and the horizontal plane is 10°. Fix the rubber pad with the filament guide groove to the vibrating conveyor.

[0094] EV31 filament preparation:

[0095] S1. Check the airtightness of the sealed cavity 6. Evacuate the sealed cavity 6 and then introduce argon gas until the gas pressure inside the sealed cavity 6 reaches the standard atmospheric pressure.

[0096] S2, add a magnesium alloy rod into the electromagnetic induction crucible 2, the electromagnetic induction crucible 2 melts the alloy raw material into a molten metal, the heating temperature is 700℃; after the magnesium alloy melts, a molten pool is formed at the top due to surface tension; the molten magnesium alloy is introduced into the holding crucible through the pipe until the holding crucible is full.

[0097] S3, set the vibration frequency of the vibrating conveyor 9 to 20 Hz;

[0098] S4, preheating roller 4, the roller drive assembly drives the roller 4 to rotate via the wheel shaft 5, the roller speed is 30 m / s; the rim of the roller 4 is immersed in the molten pool of the metal; cooling water is introduced into the wheel shaft 5 to initially cool the metal molten material adhering to the rim of the roller 4; the metal molten material adhering to the rim of the roller 4 is thrown out tangentially along the rim of the roller 4 by centrifugal force, and the metal molten material forms a continuous alloy wire under the condensation of the protective gas in the sealed cavity 6; as the alloy wire is prepared, the electromagnetic induction crucible 2 continuously introduces magnesium alloy molten material into the holding crucible, the feeding speed is 50 μm / s;

[0099] S5, the condensed alloy wire falls onto the vibrating conveyor 9. As the vibrating conveyor 9 vibrates, the alloy wire is vibrated into the groove of the rubber pad 10 and moves in the groove along the conveying direction of the vibrating conveyor 9, thereby achieving the purpose of tidying up the alloy wire.

[0100] S6, the alloy wire is wound onto the winding roller 11 to obtain a coiled alloy wire.

[0101] S7. The filament is removed and subjected to surface heat treatment to form EV31 filament with a diameter of less than 30 μm for arc additive manufacturing.

[0102] See Figure 8 , Figure 9 and Figure 10 The image shows a physical photograph of the EV31 filament obtained by the molding methods of Examples 1 and 2. The length of the EV31 filament can reach approximately 50 cm.

[0103] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions created in this application, and are not intended to limit the scope of protection of this application. Although this application has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions created in this application without departing from the substance and scope of the technical solutions created in this application.

Claims

1. A manufacturing and forming apparatus for alloy wire, characterized in that, include: Melting equipment is used to melt alloy raw materials to obtain molten metal. Rotatable rollers for spinning yarn; A closed cavity, melting equipment and rollers are set inside the closed cavity to provide a protective gas atmosphere; The drive roller rotates, and the rim of the roller is immersed in the molten pool of metal. The molten metal adhering to the rim of the roller is thrown out tangentially along the rim of the roller by centrifugal force. The molten metal solidifies to form a continuous alloy wire.

2. The alloy wire manufacturing and forming apparatus according to claim 1, characterized in that, The melting device is a crucible heated by resistance wire.

3. The alloy wire manufacturing and forming apparatus according to claim 2, characterized in that, One sidewall of the crucible body is recessed inward to form a spherical crown-shaped sidewall; the roller is located on the sidewall of the crucible body away from the spherical crown-shaped sidewall.

4. The alloy wire manufacturing and forming apparatus according to claim 3, characterized in that, A scraper is provided on the roller, and the scraper has a cutting edge that is in contact with the surface of the roller to scrape off the molten metal adhering to the rim of the roller.

5. The alloy wire manufacturing and forming apparatus according to claim 1, characterized in that, The melting equipment includes an electromagnetic induction crucible and a supporting crucible. The electromagnetic induction crucible and the supporting crucible are connected by a pipe, and the molten metal is introduced into the supporting crucible. The rim of the roller is immersed in the molten metal in the supporting crucible.

6. The alloy wire manufacturing and forming apparatus according to claim 5, characterized in that, A wind deflector is provided on the roller, and an opening is provided on the wind deflector for the roller to rotate. The edge of the opening is set as a blade.

7. The alloy wire manufacturing and forming apparatus according to claim 4 or 6, characterized in that, It also includes a vibrating conveyor, which is located on one side below the melting equipment and is used to support the alloy wire.

8. The alloy wire manufacturing and forming apparatus according to claim 7, characterized in that, The vibrating conveyor is equipped with a rubber pad, and the upper surface of the rubber pad is provided with a wire guide groove along the conveying direction.

9. The alloy wire manufacturing and forming apparatus according to claim 1, characterized in that, The roller is mounted on the axle and can rotate with the axle. The axle is a tubular structure and is connected to a cold water pipe for cooling the roller.

10. A method for manufacturing and forming an alloy wire, characterized in that, The process is achieved using the alloy wire manufacturing and forming apparatus as described in claim 7, comprising: S1, introduce protective gas into the sealed cavity to form a protective gas atmosphere until the standard atmospheric pressure is reached; S2, The melting equipment heats the alloy raw material to a molten state; S3, preheat the roller and drive the roller to rotate, the rim of the roller is immersed into the molten pool of the metal; S4, the molten metal adhering to the rim of the roller is propelled out tangentially along the rim of the roller by centrifugal force, and the molten metal forms a continuous alloy wire under the condensation of the protective gas in the sealed cavity. S5, the alloy wire falls onto the upper surface of the vibrating conveyor and is collected; S6, heat treatment is performed on the surface of the alloy wire.

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