A process for producing a nickel-titanium alloy wire

Abstract

The present application relates to the technical field of nickel-titanium alloy wire production, in particular to a production process of nickel-titanium alloy wire, which comprises a nickel-titanium alloy wire body, and the surface of the nickel-titanium alloy wire body is provided with a fixed-length cutting groove; the beneficial effect is that electrolytic processing and drawing processing are simultaneously performed, the nickel-titanium alloy wire raw material is pressed by a cathode die rod, the electrolytic wire drawing processing cylinder rotates under the cooperation of the fixed seat one, the cathode die rod is uniformly contacted and pressed with the surface of the nickel-titanium alloy wire raw material, the cathode die rod and the nickel-titanium alloy wire raw material are respectively connected to electricity through the conductive ring structure, and the nickel-titanium alloy wire raw material is sprayed with electrolyte by the electrolyte return cylinder to quickly dissolve the surface of the nickel-titanium alloy wire raw material, so that the nickel-titanium alloy wire raw material becomes a nickel-titanium alloy wire with fixed size, the problem that the dissolution speed of the contact point between the electrolytic cathode tool and the anode workpiece is faster than other places in the prior art, which leads to uneven dissolution of the surface of the nickel-titanium wire and difficult control of the processing size, can be solved, and the nickel-titanium wire can be uniformly and comprehensively electrolytic processed.

Description

Technical Field

[0001] This invention relates to the field of nickel-titanium alloy wire production, specifically a production process for nickel-titanium alloy wire. Background Technology

[0002] Nickel-titanium alloy is a functional material with shape memory, elastic modulus, and stability under various high-temperature stresses. Nickel-titanium wire is a form of nickel-titanium alloy, possessing high ductility and shape memory properties, and is widely used in medical, aerospace, and electronics fields. The production of nickel-titanium wire requires a series of processes, including raw material screening and pretreatment, drawing, finishing, and quality inspection. Drawing is the most crucial step, directly affecting the quality of the produced nickel-titanium wire.

[0003] However, in existing technologies, the die-drawing method uses carbide dies to draw the wire from round wire one die at a time until it is drawn to the required size and shape. The product shape is accurate and the dimensional tolerance is small, but it also has problems such as high difficulty in die making, incomplete filling of sharp corners, easy surface scratches, small die deformation rate and total deformation rate, and long production cycle. The roll drawing method uses rolls to form a die shape. Through the roll driven method, the single-pass deformation rate can reach about 30%, and the product sharp corners are filled and the shape is relatively accurate. However, it has the problem of large dimensional fluctuations during processing. It also has the problems of low strength, poor dimensional tolerance and surface quality, small single-coil weight and low production efficiency. In the existing technology, a Chinese patent document with publication number CN114951857A and publication date of August 30, 2022, is proposed to process the wire by electrolytic machining. However, the dissolution rate at the contact point between the cathode tool and the anode workpiece is faster than in other places, resulting in uneven dissolution of the nickel-titanium wire surface and difficulty in controlling the processing size.

[0004] Therefore, we need a nickel-titanium alloy wire production process to solve the problem that the dissolution rate at the contact point between the cathode tool and the anode workpiece in the existing electrolytic method is faster than in other areas, resulting in uneven dissolution of the nickel-titanium wire surface and difficulty in controlling the processing dimensions. This process can enable the nickel-titanium wire to be electrolytically processed and shaped in a comprehensive and uniform manner. Summary of the Invention

[0005] The purpose of this invention is to provide a manufacturing process for nickel-titanium alloy wire to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a nickel-titanium alloy wire, comprising a nickel-titanium alloy wire body, wherein a fixed-length cutting groove is provided on the surface of the nickel-titanium alloy wire body.

[0007] A manufacturing process for nickel-titanium alloy wire includes the following steps: Step 1: Pre-treat the nickel-titanium alloy wire raw material; Step 2: Electrolytically stretch the pretreated nickel-titanium alloy wire raw material using a nickel-titanium alloy wire drawing mechanism; Step 3: After quality inspection, the electrolytically processed nickel-titanium alloy wire is packaged. The nickel-titanium alloy wire drawing mechanism has a wire feeding mechanism at its front end and a winding mechanism at its rear end. An electrolytic wire drawing processing cylinder is located at the middle of the front end of the mechanism, and a cleaning processing cylinder is located at the rear end of the electrolytic wire drawing processing cylinder. A drying and polishing mechanism is located at the rear end of the cleaning processing cylinder. A first fixing seat is located on the outer side of the electrolytic wire drawing processing cylinder. An electrolyte return cylinder is located on one side of the front end of the electrolytic wire drawing processing cylinder. A conductive ring structure is located at the rear end of the electrolytic wire drawing processing cylinder. A cathode mold rod is located inside the electrolytic wire drawing processing cylinder. A second fixing seat is located on the outer side of the cleaning processing cylinder. A pure water return cylinder is located on one side of the front end of the cleaning processing cylinder. A pure water spray head is fixedly installed on the inner wall of the pure water return cylinder. A second pump is located at the bottom of the pure water return cylinder.

[0008] Preferably, a gear ring is fixedly installed on the outer surface of the middle part of the electrolytic wire drawing cylinder, and a gear is rotatably installed on the inner side wall of the fixed seat, with the outer surface of the gear meshing with the outer surface of the gear ring.

[0009] Preferably, a drive motor is fixedly installed on the outer surface of one front end of the fixed base, the output shaft of the drive motor is fixedly connected to one end of the rotating shaft of the gear, and a rotating shaft is fixedly installed on the other end of the rotating shaft of the gear.

[0010] Preferably, an electrolyte spray head is fixedly installed on the inner wall of the front side of the electrolyte reflux cylinder. The electrolyte spray head is symmetrically arranged on the upper and lower sides of the front circular groove of the electrolytic wire drawing cylinder. A pump is provided below the electrolyte reflux cylinder, and the output pipe of the pump is fixedly connected to the bottom inner wall of the electrolyte reflux cylinder.

[0011] Preferably, mounting feet are fixedly installed at both ends of the cathode mold rod, and one end of the mounting foot is rotatably connected to the inner wall of the electrolytic wire drawing cylinder.

[0012] Preferably, the conductive ring structure is fixedly installed on the outer rear surface of the electrolytic wire drawing cylinder. An anode pin is provided on one side of the conductive ring structure, and a wire is wound on the outer surface of the anode pin. One end of the wire overlaps with the outer surface of the nickel-titanium alloy wire body. A cathode pin is provided on the other side of the conductive ring structure. The cathode pin penetrates the rear side wall of the electrolytic wire drawing cylinder and is snapped into the rear end of the mounting pin.

[0013] Preferably, a gear ring two is fixedly installed on the outer surface of the middle part of the cleaning and processing cylinder, and a gear two is rotatably installed on the inner side wall of the fixed seat two. The outer surface of the gear two meshes with the outer surface of the gear ring two. The end of the gear two adjacent to the drive motor passes through the side wall of the cleaning and processing cylinder and is fixedly connected to the rear end of the rotating shaft.

[0014] Preferably, the drying and polishing mechanism includes a mounting frame whose lower end is fixedly connected to the outer wall of the winding mechanism, and a polishing wheel mounting plate is symmetrically slidably mounted on the upper part of the mounting frame.

[0015] Preferably, the inner sides of both ends of the mounting bracket are fitted with limit springs, one end of the limit spring is in contact with the outer side wall of the polishing wheel mounting plate, and a polishing wheel is snapped onto the upper end of the polishing wheel mounting plate.

[0016] Compared with the prior art, the beneficial effects of the present invention are: The nickel-titanium alloy wire and its production process proposed in this invention employ simultaneous electrolytic processing and drawing. The nickel-titanium alloy wire raw material is pressed and rolled using a cathode die. The electrolytic drawing cylinder rotates with the support of a fixed base, ensuring uniform contact and pressing between the cathode die and the surface of the nickel-titanium alloy wire raw material. A conductive ring structure connects both the cathode die and the nickel-titanium alloy wire raw material, making the cathode die simultaneously the cathode and the nickel-titanium alloy wire raw material the anode. Simultaneously, an electrolyte return cylinder sprays electrolyte onto the nickel-titanium alloy wire raw material. Utilizing the principle of accelerated dissolution upon contact between the anode and cathode, the surface of the nickel-titanium alloy wire raw material is rapidly dissolved, transforming it into a nickel-titanium alloy wire of fixed dimensions. This solves the problem in existing electrolytic methods where the dissolution rate at the contact point between the cathode tool and the anode workpiece is faster than elsewhere, leading to uneven dissolution and difficulty in controlling the processing dimensions. This allows the nickel-titanium wire to be electrolytically processed and shaped uniformly throughout the entire process. Attached Figure Description Figure 1 This is a schematic diagram of the nickel-titanium alloy wire body structure of the present invention; Figure 2 This is a schematic diagram of the nickel-titanium alloy wire drawing mechanism of the present invention; Figure 3 This is a top view schematic diagram of the nickel-titanium alloy wire drawing mechanism of the present invention; Figure 4 This is a schematic diagram of the drive structure of the nickel-titanium alloy wire drawing mechanism of the present invention; Figure 5 This is a schematic diagram of the conductive ring structure of the present invention; Figure 6 This is a schematic diagram of the processing dimension adjustment mechanism of the present invention; Figure 7 This is a schematic diagram of the grooving processing mechanism of the present invention; Figure 8This is a schematic diagram of the installation structure of the drying and polishing mechanism of the present invention.

[0017] In the diagram: 1. Nickel-titanium alloy wire body; 11. Fixed-length grooving; 2. Nickel-titanium alloy wire drawing mechanism; 3. Wire feeding mechanism; 4. Winding mechanism; 5. Electrolytic wire drawing processing cylinder; 51. Fixed base one; 511. Gear one; 52. Gear ring one; 53. Electrolyte return cylinder; 531. Electrolyte spray head; 54. Pump one; 55. Conductive ring structure; 551. Anode connector; 552. Wire; 553. Cathode connector; 56. Drive motor; 57. Rotating shaft; 58. Cathode mold rod; 581. Mounting connector; 6. 61. Cleaning and processing cylinder; 61. Fixed base II; 61. Gear II; 62. Gear ring II; 63. Pure water return cylinder; 63. Pure water spray head; 64. Pump II; 7. Drying and polishing mechanism; 71. Mounting bracket; 72. Polishing wheel mounting plate; 73. Limiting spring; 74. Polishing wheel; 8. Processing size adjustment mechanism; 81. Cathode mold rod adjustment bracket; 82. Adjusting bolt; 83. Limiting rod; 84. Adjusting gear; 9. Easy grooving processing mechanism; 91. Double-headed telescopic rod; 92. Cutting knife mounting bracket; 93. Cutting knife. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the present invention clear and complete, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of the present invention, and are merely illustrative of the embodiments of the present invention. They are not intended to limit the embodiments of the present invention. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] Example 1 Please see Figure 1 The present invention provides a technical solution: a nickel-titanium alloy wire, comprising a nickel-titanium alloy wire body 1, wherein a fixed-length cutting groove 11 is provided on the surface of the nickel-titanium alloy wire body 1. The nickel-titanium alloy wire body 1 is cylindrical in shape and has a relatively smooth and fine surface, making it suitable for the medical field. At the same time, a fixed-length slot 11 is formed on the outside of the nickel-titanium alloy wire body 1. The depth of the fixed-length slot 11 is one-fifth of the diameter of the nickel-titanium alloy wire body 1. The fixed-length slot 11 facilitates the segmentation of the nickel-titanium alloy wire body 1 during use and will not form a rough break.

[0020] Example 2 Please see Figures 2 to 8 Based on Example 1, this example proposes a production process for nickel-titanium alloy wire, including the following steps: Step 1: Pre-treat the nickel-titanium alloy wire raw material; Step 2: Electrolytically stretch the pretreated nickel-titanium alloy wire raw material using the nickel-titanium alloy wire drawing mechanism 2. Step 3: After quality inspection, the electrolytically processed nickel-titanium alloy wire is packaged. The nickel-titanium alloy wire drawing mechanism 2 has a wire feeding mechanism 3 at its front end, a winding mechanism 4 at its rear end, an electrolytic wire drawing processing cylinder 5 at the middle of its front end, a cleaning processing cylinder 6 at its rear end, and a drying and polishing mechanism 7 at its rear end. A fixing seat 51 is located on the outer side of the electrolytic wire drawing processing cylinder 5, an electrolyte return cylinder 53 is located on one side of its front end, and a conductive ring structure 55 is located at its rear end. The electrolytic wire drawing process... The inner side of the cylinder 5 is equipped with a cathode mold rod 58; the outer side of the cleaning and processing cylinder 6 is equipped with a fixed seat 61, and a pure water return cylinder 63 is installed on one side of the front end of the cleaning and processing cylinder 6. A pure water spray head 631 is fixedly installed on the inner side wall of the pure water return cylinder 63, and a pump 64 is installed at the bottom of the pure water return cylinder 63; a gear ring 52 is fixedly installed on the outer surface of the middle part of the electrolytic wire drawing processing cylinder 5, and a gear 511 is rotatably installed on the inner side wall of the fixed seat 51. The outer surface of the gear 511 meshes with the outer surface of the gear ring 52; the outer side of the front end of the fixed seat 51... A drive motor 56 is fixedly mounted on the surface. The output shaft of the drive motor 56 is fixedly connected to one end of the rotating shaft of gear 511. A rotating shaft 57 is fixedly mounted on the other end of the rotating shaft of gear 511. An electrolyte spray head 531 is fixedly mounted on the inner wall of the front side of the electrolyte return cylinder 53. The electrolyte spray heads 531 are symmetrically arranged on the upper and lower sides of the front circular groove of the electrolytic wire drawing cylinder 5. A pump 54 is arranged below the electrolyte return cylinder 53. The output pipe of the pump 54 is fixedly connected to the bottom inner wall of the electrolyte return cylinder 53. Both ends of the cathode mold rod 58 are respectively fixedly mounted with Mounting pin 581, one end of mounting pin 581 is rotatably connected to the inner side wall of electrolytic wire drawing cylinder 5; conductive ring structure 55 is fixedly mounted on the outer surface of the rear end of electrolytic wire drawing cylinder 5, an anode pin 551 is provided on one side of conductive ring structure 55, a wire 552 is wound on the outer surface of anode pin 551, one end of wire 552 is overlapped with the outer surface of nickel-titanium alloy wire body 1, a cathode pin 553 is provided on the other side of conductive ring structure 55, the cathode pin 553 penetrates the rear side wall of electrolytic wire drawing cylinder 5 and is snapped into the rear end of mounting pin 581; The nickel-titanium alloy raw material passes through the middle of the electrolytic wire drawing cylinder 5. The cathode die 58 presses and rolls the nickel-titanium alloy wire raw material. The drive motor 56 rotates, driving the gear 511 to rotate, causing the electrolytic wire drawing cylinder 5 to rotate under the cooperation of the fixed base 51. This allows the cathode die 58 to make uniform contact with the surface of the nickel-titanium alloy wire raw material. The conductive ring structure 55 connects the cathode die 58 and the nickel-titanium alloy wire raw material respectively. The cathode pin 553 engages with the mounting pin 581, making the cathode die 58 simultaneously the cathode. The wire 552 connects with the anode pin 551. The process involves using the nickel-titanium alloy wire as the anode, while the electrolyte return cylinder 53, under the operation of pump 54, sprays electrolyte onto the nickel-titanium alloy wire through the electrolyte spray head 531. Utilizing the principle of accelerated dissolution through contact between the anode and cathode, the surface of the nickel-titanium alloy wire is rapidly dissolved, transforming it into a nickel-titanium alloy wire of fixed size. This solves the problem in existing electrolytic methods where the dissolution rate at the contact point between the cathode tool and the anode workpiece is faster than in other areas, leading to uneven dissolution of the nickel-titanium wire surface and difficulty in controlling the processing dimensions. This allows the nickel-titanium wire to be electrolytically processed and shaped uniformly.

[0021] Example 3 Based on Embodiment 2, in order to enable the electrolytic wire drawing processing cylinder 5 to process nickel-titanium alloy wires within a certain size range, this embodiment adds a processing size adjustment mechanism 8 to the front end of the electrolytic wire drawing processing cylinder 5. The processing size adjustment mechanism 8 includes a cathode mold rod adjustment frame 81 slidably installed at the front end of the electrolytic wire drawing processing cylinder 5. The upper and lower ends of the side wall of the electrolytic wire drawing processing cylinder 5 are respectively provided with through grooves adapted to the cathode mold rod adjustment frame 81. An electrolyte collection tank is provided below the through grooves. The upper and lower ends of the cathode mold rod adjustment frame 81 are respectively provided with adjusting bolts 82 and limiting rods 83. The adjusting bolts 82 are rotatably installed on the electrolytic wire drawing processing cylinder 5. On the upper front surface of the working cylinder 5, the limiting rod 83 is fixedly installed on the lower front surface of the electrolytic wire drawing processing cylinder 5. The upper side wall of the cathode mold rod adjustment frame 81 is threadedly connected to the outer surface of the adjusting bolt 82. The lower inner wall of the cathode mold rod adjustment frame 81 is slidably connected to the outer surface of the limiting rod 83. Adjusting gears 84 are respectively provided on the inner side of the cathode mold rod adjustment frame 81. One end of the rotating shaft of the adjusting gear 84 is fixedly connected to the lower end of the mounting foot 581. The other end of the rotating shaft of the adjusting gear 84 is rotatably connected to the front side wall of the electrolytic wire drawing processing cylinder 5. The outer surface of the adjusting gear 84 meshes with the inner surface of the cathode mold rod adjustment frame 81. By rotating the adjusting bolt 82, the cathode mold rod adjusting frame 81 slides up and down under the limiting action of the limiting rod 83. Because the adjusting gear 84 meshes with the cathode mold rod adjusting frame 81, the cathode mold rod adjusting frame 81 slides and pushes the adjusting gear 84 to drive the mounting foot 581 to rotate. The cathode mold rod adjusting frame 81 moves upward, causing the mounting foot 581 to rotate in the opposite direction away from the center of the electrolytic wire drawing cylinder 5, increasing its size. The cathode mold rod adjusting frame 81 moves downward, and the mounting foot 581 rotates relative to move closer to the center of the electrolytic wire drawing cylinder 5 to squeeze and contact the nickel-titanium alloy raw material. This further solves the problem that the dissolution rate at the contact point between the cathode tool and the anode workpiece in the existing electrolytic method is faster than in other places, resulting in uneven dissolution of the nickel-titanium wire surface and difficulty in controlling the processing size. It can make the nickel-titanium wire be electrolytically processed and shaped in a comprehensive and uniform manner.

[0022] Example 4 Based on Embodiment 3, this embodiment proposes that a gear ring 2 62 is fixedly installed on the outer surface of the middle part of the cleaning and processing cylinder 6, and a gear 2 611 is rotatably installed on the inner side wall of the fixing seat 2 61. The outer surface of the gear 2 611 meshes with the outer surface of the gear ring 2 62. The shaft of the gear 2 611 adjacent to the drive motor 56 passes through the side wall of the cleaning and processing cylinder 6 and is fixedly connected to the rear end of the rotating shaft 57. The second gear 611 has four sets. The rightmost gear 611 is fixedly connected to the rotating shaft 57. The four sets of gears 611 work together to limit the cleaning and processing cylinder 6. The pure water return cylinder 63 is sprayed by the pure water spray head 631 under the operation of the second pump 64 to remove the electrolyte on the surface of the nickel-titanium alloy wire.

[0023] Example 5 Based on Embodiment 4, in order to ensure that the nickel-titanium alloy wire can be uniformly fixed in length, this embodiment adds a grooving processing mechanism 9 to the rear end of the fixed base 2 61. The grooving processing mechanism 9 includes a double-headed telescopic rod 91 fixedly installed on one side of the rear end of the cleaning processing cylinder 6. A cutter mounting bracket 92 is fixedly installed at the output end of the double-headed telescopic rod 91. A cutter 93 is fixedly installed on the inner side of the cutter mounting bracket 92. The upper and lower ends of the side wall of the cleaning processing cylinder 6 are respectively provided with through grooves that are adapted to the cutter mounting bracket 92. A sewage tank is provided below the through grooves. The rotating shaft 57 can simultaneously drive the gear 611 to rotate, causing the cleaning and processing cylinder 6 to rotate with the cooperation of the fixed base 61. The double-headed telescopic rod 91 is set to work intermittently, and when it retracts, it causes the cutter mounting bracket 92 to press down relative to it, forcing the cutter 93 to cut a fixed-length groove 11 on the surface of the nickel-titanium alloy wire during the rotation of the cleaning and processing cylinder 6, which facilitates the later use of the nickel-titanium alloy wire body 1.

[0024] Example 6 Based on Embodiment 5, this embodiment proposes that the drying and polishing mechanism 7 includes a mounting frame 71 whose lower end is fixedly connected to the outer wall of the winding mechanism 4, a polishing wheel mounting plate 72 symmetrically slidably mounted on the upper part of the mounting frame 71, a limit spring 73 sleeved on the inner side of both ends of the mounting frame 71, one end of the limit spring 73 contacting the outer wall of the polishing wheel mounting plate 72, and a polishing wheel 74 being snapped onto the upper end of the polishing wheel mounting plate 72; Mounting bracket 71 serves to mount polishing wheel mounting plate 72, which in turn mounts polishing wheel 74, making it easy to disassemble and replace polishing wheel 74. Limiting spring 73 uses its elasticity to compress polishing wheel mounting plate 72, causing the polishing wheel mounting plate 72 to move closer together. Nickel-titanium alloy wire body 1 passes through the middle of polishing wheel 74 and is rubbed and polished to remove surface moisture, making it easier for winding mechanism 4 to wind the wire.

[0025] Example 7 Based on Example 6, this example proposes a method for drawing nickel-titanium alloy wire, including the following steps: Step 1: Start the wire feeding mechanism 3, allowing the nickel-titanium alloy wire material to pass through the electrolytic drawing cylinder 5, the cleaning cylinder 6, and the drying and polishing mechanism 7 in one pass. Rotate the adjusting bolt 82 to allow the cathode mold rod adjusting frame 81 to slide up and down under the limiting action of the limiting rod 83. The cathode mold rod adjusting frame 81 moves down and the mounting feet 581 rotate relative to each other and move closer to the center of the electrolytic drawing cylinder 5 to squeeze and press the nickel-titanium alloy material. The cathode mold rod 58 presses and rolls the nickel-titanium alloy wire material. The conductive ring structure 55 is energized to connect the cathode mold rod 58 and the nickel-titanium alloy wire material respectively through the conductive ring structure 55. The cathode foot 553 engages with the mounting foot 581 so that the cathode mold rod 58 becomes the cathode at the same time. The wire 552 engages with the anode foot 551 so that the nickel-titanium alloy wire material becomes the anode. Step 2: Start the drive motor 56 to rotate the drive gear 511, causing the electrolytic wire drawing cylinder 5 to rotate under the cooperation of the fixed base 51. This allows the cathode die 58 to make uniform contact with the surface of the nickel-titanium alloy wire raw material for pressing. At the same time, start the pump 54. Under the operation of the pump 54, the electrolyte return cylinder 53 sprays electrolyte onto the nickel-titanium alloy wire raw material through the electrolyte spray head 531. Utilizing the principle of accelerated dissolution due to contact between the anode and cathode, the surface of the nickel-titanium alloy wire raw material is quickly dissolved, turning it into a nickel-titanium alloy wire of fixed size. Step 3: Start pump 2 64. Rotating shaft 57 can simultaneously drive gear 2 611 to rotate, causing cleaning cylinder 6 to rotate with the cooperation of fixed seat 2 61. Under the operation of pump 2 64, pure water return cylinder 63 sprays through pure water spray head 631 to remove the electrolyte on the surface of nickel-titanium alloy wire. Step four: Set the double-headed telescopic rod 91 to work intermittently. When it retracts, it causes the cutter mounting bracket 92 to press down relative to each other, forcing the cutter 93 to cut a fixed-length slot 11 on the surface of the nickel-titanium alloy wire during the rotation of the cleaning and processing cylinder 6. The limiting spring 73 uses the elasticity of the spring to squeeze the polishing wheel mounting plate 72, causing the polishing wheel mounting plate 72 to move closer to each other. The nickel-titanium alloy wire body 1 passes through the middle of the polishing wheel 74 and is rubbed and polished and the surface moisture is wiped off. Finally, the winding mechanism 4 winds the wire back up.

[0026] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A manufacturing process for nickel-titanium alloy wire, comprising a nickel-titanium alloy wire body (1), wherein the surface of the nickel-titanium alloy wire body (1) is provided with a fixed-length cutting groove (11), characterized in that: Includes the following steps: Step 1: Pre-treat the nickel-titanium alloy wire raw material; Step 2: Electrolytically stretch the pretreated nickel-titanium alloy wire raw material using a nickel-titanium alloy wire drawing mechanism (2). Step 3: After quality inspection, the nickel-titanium alloy wire body (1) formed by electrolytic processing is packaged. The front end of the nickel-titanium alloy wire drawing mechanism (2) is provided with a wire feeding mechanism (3), the rear end of the nickel-titanium alloy wire drawing mechanism (2) is provided with a winding mechanism (4), the middle of the front end of the nickel-titanium alloy wire drawing mechanism (2) is provided with an electrolytic wire drawing processing cylinder (5), the rear end of the electrolytic wire drawing processing cylinder (5) is provided with a cleaning processing cylinder (6), and the rear end of the cleaning processing cylinder (6) is provided with a drying and polishing mechanism (7). The electrolytic wire drawing processing cylinder (5) is provided with a fixed base (51) on the outside, an electrolyte return cylinder (53) is provided on one side of the front end of the electrolytic wire drawing processing cylinder (5), a conductive ring structure (55) is provided at the rear end of the electrolytic wire drawing processing cylinder (5), and a cathode mold rod (58) is provided inside the electrolytic wire drawing processing cylinder (5). The cathode mold rod (58) is fixedly installed with mounting feet (581) at both ends, and one end of the mounting feet (581) is rotatably connected to the inner wall of the electrolytic wire drawing cylinder (5). The conductive ring structure (55) is fixedly installed on the outer surface of the rear end of the electrolytic wire drawing cylinder (5). An anode pin (551) is provided on one side of the conductive ring structure (55). A wire (552) is wound around the outer surface of the anode pin (551). One end of the wire (552) overlaps with the outer surface of the nickel-titanium alloy wire body (1). A cathode pin (553) is provided on the other side of the conductive ring structure (55). The cathode pin (553) penetrates the rear side wall of the electrolytic wire drawing cylinder (5) and is snapped into the rear end of the mounting pin (581). A fixing seat 2 (61) is provided on the outside of the cleaning and processing cylinder (6), a pure water return cylinder (63) is provided on one side of the front end of the cleaning and processing cylinder (6), a pure water spray head (631) is fixedly installed on the inner side wall of the pure water return cylinder (63), and a pump 2 (64) is provided at the bottom of the pure water return cylinder (63).

2. The production process of a nickel-titanium alloy wire according to claim 1, characterized in that: A gear ring (52) is fixedly installed on the outer surface of the middle part of the electrolytic wire drawing cylinder (5), and a gear (511) is rotatably installed on the inner side wall of the fixed seat (51). The outer surface of the gear (511) meshes with the outer surface of the gear ring (52).

3. The production process of a nickel-titanium alloy wire according to claim 2, characterized in that: A drive motor (56) is fixedly installed on the outer surface of one front end of the fixed base (51), and the output shaft of the drive motor (56) is fixedly connected to one end of the rotating shaft of the gear (511).

4. The production process of a nickel-titanium alloy wire according to claim 1, characterized in that: An electrolyte spray head (531) is fixedly installed on the inner wall of the front side of the electrolyte return cylinder (53). The electrolyte spray head (531) is symmetrically arranged on the upper and lower sides of the front circular groove of the electrolytic wire drawing cylinder (5). A pump (54) is arranged below the electrolyte return cylinder (53). The output pipe of the pump (54) is fixedly connected to the bottom inner wall of the electrolyte return cylinder (53).

5. The production process of a nickel-titanium alloy wire according to claim 3, characterized in that: A gear ring 2 (62) is fixedly installed on the outer surface of the middle part of the cleaning and processing cylinder (6). A gear 2 (611) is rotatably installed on the inner side wall of the fixed seat 2 (61). The outer surface of the gear 2 (611) meshes with the outer surface of the gear ring 2 (62). A rotating shaft (57) is fixedly installed at the other end of the rotating shaft of the gear 1 (511). The rotating shaft of the gear 2 (611) adjacent to the drive motor (56) passes through the side wall of the cleaning and processing cylinder (6) and is fixedly connected to the rear end of the rotating shaft (57).

6. The production process of a nickel-titanium alloy wire according to claim 1, characterized in that: The drying and polishing mechanism (7) includes a mounting frame (71) whose lower end is fixedly connected to the outer wall of the winding mechanism (4), and a polishing wheel mounting plate (72) is symmetrically slidably mounted on the upper part of the mounting frame (71).

7. The production process of a nickel-titanium alloy wire according to claim 6, characterized in that: Limiting springs (73) are sleeved on the inner sides of both ends of the mounting bracket (71). One end of the limiting spring (73) is in contact with the outer wall of the polishing wheel mounting plate (72). A polishing wheel (74) is clamped on the upper end of the polishing wheel mounting plate (72).

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