Wire drawing process of wire rod

Abstract

The invention discloses a wire drawing process for wire rods, and relates to the technical field of metal wire processing, and the wire drawing process for the wire rods comprises the steps that after a first wire rod to be drawn and a second wire rod to be drawn are subjected to mechanical oxidation film removal processing, butt joint is carried out; s20, annealing treatment, vibration treatment and surface treatment are conducted on the butt joint position of the first wire rod to be drawn and the second wire rod to be drawn; s30, the to-be-drawn wire rod subjected to annealing treatment and surface treatment in the step S20 penetrates through a preset eye mold, wire drawing treatment is conducted, the wire rod is drawn out from the other end of the eye mold, and one-time wire drawing is completed; and S40, the step S30 is repeated until wire drawing treatment of the preset number of eye molds is carried out, and wire drawing is completed. That is, the stress at the butt joint is reduced through annealing treatment and vibration, the toughness of the butt joint is improved, protrusions at the butt joint are eliminated through surface treatment on the butt joint, the situation that protrusions exist on the drawn metal wires is avoided, and therefore the reject ratio of products obtained after wire drawing is conducted on the wire rod is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of metal wire processing, in particular to a wire drawing process of a coil element. BACKGROUND

[0002] A coil element is a kind of metal wire supplied in a coiled form, which is usually drawn for wire drawing. The coil element has a certain diameter and length, which can be adjusted according to different processing requirements. The wire drawing of the coil element is usually divided into two processes of preliminary wire drawing and fine wire drawing.

[0003] In order to facilitate the transportation of the metal wire, the metal wire is cut into a certain length and coiled into a coil element. In order to ensure the continuity of production, two coil elements are usually butt-jointed in the preliminary wire drawing process when the coil element is processed, so as to avoid interrupting the production due to replacement of the coil element, and the remaining short coil elements can also be effectively utilized to reduce waste. However, the butt-jointed coil element obtained by wire drawing is prone to have a protrusion at the butt-joint, which increases the defective rate of the obtained product.

[0004] The above content is only used to assist in understanding the technical solutions of the present application, and does not represent the acknowledgement of the above content as prior art. SUMMARY

[0005] The main purpose of the present application is to provide a wire drawing process of a coil element, which aims to solve the technical problem that the butt-joint of the product obtained by wire drawing is prone to have a protrusion, which increases the defective rate of the obtained product.

[0006] To achieve the above-mentioned purpose, the present application provides a wire drawing process of a coil element, when the coil elements need to be butt-jointed, the process comprises:

[0007] S10, after the mechanical deoxidized film treatment of the first and second coil elements to be drawn, the first and second coil elements to be drawn are butt-jointed;

[0008] S20, annealing treatment, vibration treatment and surface treatment are performed on the butt-joint of the first and second coil elements to be drawn;

[0009] S30, the coil element to be drawn after the annealing treatment and surface treatment in step S20 is drawn through a preset eye die, and is drawn out from the other end of the eye die, to complete a wire drawing;

[0010] S40, the wire drawing process through a preset number of eye dies is repeated to complete the wire drawing.

[0011] In an embodiment, the step of annealing treatment, vibration treatment and surface treatment on the butt-joint of the first and second coil elements to be drawn comprises:

[0012] annealing and vibration treatment are performed on the abutment of the first wire drawing disc and the second wire drawing disc;

[0013] After the annealing treatment, surface sand blasting and vibration treatment are performed on the wire drawing disc, and then surface polishing treatment is performed on the wire drawing disc.

[0014] In an embodiment, the oscillation frequency of the wire drawing disc after sand blasting is not the same as the vibration frequency of the vibration treatment, and is not an integer multiple.

[0015] In an embodiment, the step of annealing and vibration treatment on the abutment of the first wire drawing disc and the second wire drawing disc comprises:

[0016] When the diameters of the first wire drawing disc and the second wire drawing disc are greater than a set diameter, annealing and vibration treatment are performed on the abutment of the first wire drawing disc and the second wire drawing disc.

[0017] In an embodiment, when the diameters of the first wire drawing disc and the second wire drawing disc are greater than a set diameter, the critical interface reduction rate is 13% to 19% when the wire drawing treatment is performed.

[0018] In an embodiment, after the mechanical deoxidation film treatment of the first wire drawing disc and the second wire drawing disc, the abutting step comprises:

[0019] Mechanical deoxidation film treatment is performed on the first wire drawing disc and the second wire drawing disc.

[0020] 5-10 cm of one end of the first wire drawing disc is cut off as a first abutting end, and 5-10 cm of one end of the second wire drawing disc is cut off as a second abutting end.

[0021] The first abutting end and the second abutting end are polished.

[0022] Paste solvent is applied to the first abutting end and the second abutting end, and the first abutting end and the second abutting end after polishing are welded, to complete the abutting of the first wire drawing disc and the second wire drawing disc.

[0023] In an embodiment, if the first wire drawing disc and the second wire drawing disc are made of aluminum, the raw materials of the paste solvent at least include:

[0024] fluoride, chloride and aluminum oxide;

[0025] The preparation method of the preset paste solvent comprises:

[0026] Mixing the mixed powder of the fluoride, the chloride and the aluminum oxide with distilled water in a ratio of two to one to obtain the paste-like solvent.

[0027] In an embodiment, before the steps of annealing, vibrating and surface treating the butt joint of the first and second wire-drawing disc elements, the method further comprises:

[0028] Detecting the material of the first and second wire-drawing disc elements;

[0029] When the materials of the first and second wire-drawing disc elements are different, marking the butt joint.

[0030] In an embodiment, the center axis of the eye die is tangent to the vertex of the wire arc in the step S30, and the wire arc is the arc or curved shape formed by the product during the wire-drawing process of the disc element.

[0031] In an embodiment, the average area reduction rate is controlled to be 22% to 28% during the wire-drawing process, and the average area reduction rate is determined by the number of the eye dies.

[0032] The one or more technical solutions provided in the present application have at least the following technical effects:

[0033] By performing mechanical deoxidation film treatment on the first and second wire-drawing disc elements and then performing butt joint, the influence of the oxide film can be reduced. By performing annealing and vibration on the butt joint, the stress at the butt joint can be reduced, and the stress at the butt joint and the stress in the first and second wire-drawing disc elements can be smoothly transitioned. In addition, the hardness at the butt joint can be reduced, and the toughness at the butt joint can be increased, thereby reducing the difficulty of surface treatment. By simultaneously performing vibration treatment when performing surface treatment on the butt joint, the treatment of the protrusion at the butt joint can be accelerated. In the wire-drawing process, the wire-drawing disc element is prevented from being broken at the butt joint, the difficulty of wire-drawing at the butt joint is reduced, the wire that has completed wire-drawing is prevented from protruding at the butt joint, and the yield of the product after wire-drawing of the disc element is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0034] The accompanying drawings, which are incorporated herein and constitute part of the specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0035] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the accompanying drawings needed to be used in the embodiments or prior art description will be briefly introduced. Obviously, for those skilled in the art, other drawings can also be obtained based on these drawings without creative labor.

[0036] Figure 1 A flowchart provided for the process embodiment one of the drawing element of the application;

[0037] Figure 2 A flowchart provided for the process embodiment two of the drawing element of the application;

[0038] Figure 3 A flowchart provided for the process embodiment three of the drawing element of the application.

[0039] The implementation, functional features and advantages of the application will be further explained with reference to the accompanying drawings. DETAILED DESCRIPTION

[0040] It should be understood that the specific embodiments described herein merely exemplify the technical solutions of the application, and are not intended to limit the application.

[0041] In order to better understand the technical solutions of the application, the following will be described in detail in conjunction with the accompanying drawings and specific embodiments.

[0042] It should be noted that if the embodiments of the application involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative positional relationship, movement condition, etc. between the components in a certain posture, and if the certain posture changes, the directional indications will also change accordingly.

[0043] In addition, if the embodiments of the application involve descriptions of "first", "second", etc., the descriptions of "first", "second", etc. are only for description purposes, and cannot be understood as indicating or implying the relative importance of the technical features indicated or the number of the technical features indicated. Therefore, the features with "first", "second" can explicitly or implicitly include at least one of the features. In addition, if "and / or" or "and / or" appears throughout the text, it means that the three parallel schemes are included, for example, "A and / or B" includes A scheme, or B scheme, or A and B scheme. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of ordinary skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, and is not within the scope of protection claimed by the application.

[0044] Due to the prior art, in order to facilitate the transportation of the metal wire rod, the metal wire rod is cut into a certain length and wound into a disc element. In order to ensure the continuity of production, two disc elements are connected during the initial drawing process to avoid interrupting production due to replacement of the disc element, and the remaining short disc elements can be effectively utilized to reduce waste. However, the joint of the product obtained by drawing the connected disc elements is prone to protrusion, which increases the defect rate of the obtained product.

[0045] The present application provides a solution. By mechanically removing the oxide film from the first and second disc elements to be drawn before connecting them, the influence of the oxide film can be reduced. Annealing and vibration of the joint can reduce the stress at the joint and smoothly transition the stress at the joint to the stress in the first and second disc elements to be drawn. In addition, the hardness of the joint can be reduced and the toughness of the joint can be increased, thereby reducing the difficulty of surface treatment. Simultaneous vibration treatment during surface treatment of the joint can accelerate the treatment of the protrusion at the joint. During the drawing process, the disc element to be drawn is prevented from breaking at the joint, the drawing difficulty at the joint is reduced, and the protrusion of the drawn metal wire at the joint is avoided, thereby reducing the defect rate of the product after drawing the disc element.

[0046] Based on this, the present application provides a process for drawing a disc element. Referring to Figure 1 , Figure 1 is a flowchart of the first embodiment of the process for drawing a disc element of the present application.

[0047] In this embodiment, when the disc elements need to be connected, the process for drawing the disc elements includes steps S10-S40:

[0048] Step S10, after mechanically removing the oxide film from the first and second disc elements to be drawn, connecting them.

[0049] It should be noted that the mechanical oxide film removal process is a process for removing the oxide film on the surface of the disc element by mechanical means to remove surface impurities and improve the subsequent jointing effect. The jointing process connects (e.g., welds) the ends of two disc elements to be drawn to form a continuous wire rod for subsequent drawing.

[0050] It can be understood that the mechanical oxide film removal process can effectively remove the oxide film and impurities on the surface of the disc element to avoid the influence of the oxide film during jointing, thereby improving the jointing quality of the disc elements to be drawn, ensuring the firm connection of the two disc elements to be drawn, avoiding breakage or loosening during drawing, and improving the stability and reliability of the drawing process.

[0051] It is understandable that mechanically removing the oxide film on the surface of the wire reel to be drawn can also prevent the wire surface from being scratched or broken due to the presence of the oxide film during the subsequent wire drawing process, thereby improving the efficiency of wire drawing and reducing the generation of defective products.

[0052] It is understandable that after removing the oxide film, the surface of the disc element will become smooth to reduce the friction between it and the mold, which not only reduces the resistance during the wire drawing process, but also reduces the energy consumption during the wire drawing process, thereby improving the efficiency of wire drawing.

[0053] In a specific implementation, when the wire coils need to be docked, the first and second wire coils to be drawn are first subjected to mechanical deoxidation. The mechanical deoxidation can be performed by passing the first or second wire coil through five rollers in a rust peeling machine. Alternatively, a mechanical brush, sandpaper, or other tool can be used to remove the oxide film and impurities on the coil surface. After the deoxidation is completed, one end of the first wire coil is docked with one end of the second wire coil. The docking process can be performed by welding or other connection methods to ensure that the two coils are firmly connected, forming a continuous wire for subsequent wire drawing.

[0054] Step S20, performing annealing treatment, vibration treatment and surface treatment on the joint between the first wire-drawing disk element and the second wire-drawing disk element;

[0055] It should be noted that annealing is a heat treatment process that changes the internal stress at the joint of the disc element through heating and cooling, reducing the hardness of the metal and increasing its plasticity and toughness. This changes the physical properties of the joint and reduces the difficulty of processing the joint during subsequent wire drawing. Vibration treatment applies vibration energy to release stress within the joint, improve the internal structure of the joint, and enhance the uniformity and stability of the material.

[0056] It should be noted that surface treatment is a series of treatments performed on the surface of the disk element or the joint, such as sandblasting and / or grinding, to improve the surface quality, remove surface defects and improve the surface finish.

[0057] It is understandable that annealing treatment can reduce the hardness of the joints of the wire-drawing discs and improve their plasticity and toughness, thereby reducing the risk of breakage at the joints during the subsequent wire-drawing process and improving the success rate of wire-drawing.

[0058] It can be understood that the internal stress of the butt joint can be released by vibration processing, and the internal structure of the butt joint is similar to the structure of the first and second wire drawing disc elements, so that the internal stress of the wire drawing disc element after butt joint is more uniform, thereby improving the overall performance of the wire drawing disc element, avoiding the difference between the stress of the butt joint and the internal stress of the wire drawing disc element during the wire drawing process, resulting in the inability to draw wire at the butt joint, or the fracture at the butt joint, thereby reducing the scrap rate of the wire drawing disc element.

[0059] It can be understood that the protrusions at the butt joint can be removed by surface treatment, reducing the stress concentration at the butt joint, and avoiding the existence of protrusions at the butt joint in the product obtained by drawing wire on the wire drawing disc element, thereby reducing the scrap rate of the wire drawing disc element.

[0060] It can be understood that the internal stress of the butt joint can be changed by annealing, so that the internal stress of the butt joint can be uniformly transitioned. Therefore, while the butt joint of the wire drawing disc element is annealed, the vibration processing is performed on the butt joint, so that the internal stress of the butt joint and the butt joint end of the wire drawing disc element can be homogenized when the stress of the butt joint is easily changed. Avoiding the sudden change of the internal stress of the wire drawing disc element at the butt joint, resulting in the fracture of the disc element.

[0061] In step S30, the wire drawing disc element subjected to annealing and surface treatment in step S20 is passed through a predetermined eye mold for wire drawing, and is drawn out from the other end of the eye mold to complete a wire drawing;

[0062] It should be noted that the eye mold is a mold for wire drawing, and the eye mold has a hole with a specific shape inside. When the disc element passes through the eye mold, it is stretched and thinned, thereby achieving the purpose of wire drawing. The process of stretching and thinning the disc element through the eye mold is the wire drawing process.

[0063] It can be understood that the diameter of the wire drawing disc element can be reduced by wire drawing through the eye mold, and the diameter of the wire drawing disc element can be gradually reduced by multiple wire drawing, thereby avoiding the fracture of the disc element caused by the one-time drawing of the diameter of the wire drawing disc element to the target diameter.

[0064] It can be understood that the speed and tension of the wire drawing need to be accurately controlled during the wire drawing process to ensure uniform stretching of the wire, thereby avoiding local over-thinning or over-thickening, and ensuring the quality and performance of the wire.

[0065] It can be understood that the powder box of the eye mold contains lubricating powder, and the height of the lubricating powder should not be less than 1 / 2 of the powder box, so that the lubricating powder can wrap the wire of the disc element (the disc element being wire drawn), and the wire can be lubricated by the lubricating powder, thereby reducing the friction between the hole wall of the eye mold and the wire, and avoiding the surface of the wire being scratched.

[0066] It's understandable that since the wire rod generates heat when stretched by the eye mold, and this heat can alter its internal stress and other physical properties, to ensure that the physical properties of the wire rod remain unchanged, circulating cooling water is placed on the outlet side of the eye mold. The water level must not be lower than the water pipe opening, and the circulating cooling water can maintain the set temperature to ensure that the internal stress of the wire rod passing through the eye mold is balanced. Furthermore, since the wire rod passes through the lubricating powder in the eye mold, a small amount of powder may remain on the wire rod's surface. This powder can be washed away by the cooling water as the wire rod passes through the eye mold and then through the cooling water. The circulating cooling water also carries the powder from the cooling water pipe to the filtration device, preventing the powder from floating in the cooling water and reattaching to the wire rod.

[0067] In practice, the annealed and surface-treated wire coil is passed through a pre-set eye mold for wire drawing. The aperture of the eye mold is gradually reduced, stretching and thinning the coil as it passes through the mold. During the wire drawing process, the coil enters one end of the eye mold, is stretched, and then withdrawn from the other end. After cooling with cooling water in a water pipe, the wire drawing is complete. During the wire drawing process, the speed and tension of the wire must be precisely controlled to ensure uniform wire drawing and quality.

[0068] Step S40, repeating step S30 until the thread drawing process is completed after a preset number of eye molds are processed.

[0069] It is understandable that multiple wire drawing operations can gradually reduce the diameter of the disk element, while further improving the strength and toughness of the wire through stretching and deformation during each wire drawing process.

[0070] It is understandable that multiple wire drawing can also make the surface of the wire smoother and the internal structure more uniform, thereby improving the quality and performance of the final product. It should be noted that the repeated wire drawing process can be adjusted according to different needs and has high flexibility and adaptability.

[0071] In a specific implementation, step S30 is repeated, using multiple pre-set eye molds to perform thread extraction until the disk element reaches the desired fineness and performance requirements. Each thread extraction reduces the disk element's diameter, further improving its performance. The eye mold and thread extraction parameters are selected from an eye mold table based on the disk element's diameter and performance requirements to ensure the quality of the final product.

[0072] It should be noted that if the eye mold core has cracks, the mold must be replaced. If the required wire diameter is not in the table, a similar mold matching method should be selected. If the eye mold aperture needs to be changed, the change is the main method.

[0073] Small wire drawing machine eye die selection table:

[0074]

[0075]

[0076] Further, the center axis of the eye mold is tangent to the line arc vertex, and the line arc is an arc or curved shape formed by the product during the wire drawing process of the disc element.

[0077] It should be noted that the line arc is an arc or curved shape formed by the disc element due to force during the wire drawing process. The formation of the line arc is due to the stretching force and friction acting on the disc element when passing through the eye mold, causing the wire of the disc element to exhibit a certain bending state in space. The line arc vertex is the highest point or the most curved point of the line arc, which is a key feature point of the line arc shape. The position and shape of the line arc vertex have a direct impact on the stress distribution and wire quality during the wire drawing process.

[0078] It can be understood that the tangent of the center axis of the eye mold and the line arc vertex can make the force on the disc element more uniform when passing through the eye mold, reduce local stress concentration, and reduce the risk of wire breakage or deformation during the wire drawing process. Uniform stress distribution and stable wire drawing process can reduce the energy required during the wire drawing process, thereby reducing energy consumption and improving production efficiency.

[0079] It can be understood that by optimizing the relative position of the eye mold and the line arc, the stretching and deformation of the wire can be better controlled to ensure that the size and performance of the wire after wire drawing meet the requirements, improve the stability of the wire drawing process, reduce the wire shaking or deviation caused by uneven force, and thus improve the quality and efficiency of the wire drawing.

[0080] Further, the average area reduction rate during the wire drawing process is controlled to be 22% to 28%, and the average area reduction rate is determined by the number of eye molds.

[0081] It should be noted that the area reduction rate refers to the percentage of the cross-sectional area reduction of the wire during the wire drawing process. The average area reduction rate is the average reduction ratio of the cross-sectional area of the disc element during the wire drawing process.

[0082] It can be understood that a moderate area reduction rate can ensure the stability of the wire drawing process and reduce the problem of wire breakage or low efficiency caused by excessive or insufficient area reduction rate. Therefore, controlling the average area reduction rate in the range of 22% to 28% can ensure that the wire receives moderate deformation during each wire drawing process, thereby optimizing the strength and toughness of the wire and improving its final performance.

[0083] It can be understood that by controlling the area reduction rate of the disc element wire during the wire drawing process, uniform deformation of the wire during the wire drawing process can also be ensured, surface defects and internal stress concentration can be reduced, and the quality and consistency of the wire can be ensured.

[0084] The embodiment provides a wire drawing process of a disc element. By performing mechanical de-oxidized film treatment on the first and second disc elements to be drawn, and then performing butt joint, the influence of the oxidized film can be reduced. Annealing treatment and vibration of the butt joint part can reduce the stress of the butt joint part, and make the stress of the butt joint part and the stress in the first and second disc elements to be drawn smoothly transition, and can also reduce the hardness of the butt joint part, and increase the toughness of the butt joint part, thereby reducing the difficulty of surface treatment, and when the surface treatment is performed on the butt joint part, vibration treatment is simultaneously performed, which can accelerate the treatment of the protrusion of the butt joint part. In the wire drawing process, the disc element to be drawn is prevented from being broken at the butt joint part, the difficulty of wire drawing at the butt joint part is reduced, and the wire drawn is prevented from protruding at the butt joint part, thereby reducing the defective rate of the product after the disc element is drawn.

[0085] Optionally, before step S20, the process further includes:

[0086] Detecting the material of the first and second disc elements to be drawn.

[0087] When the materials of the first and second disc elements to be drawn are different, marking the butt joint end.

[0088] It should be noted that the material is the type of material constituting the disc element, for example, steel, aluminum, copper, alloy steel, aluminum alloy and the like. Different materials have different physical and chemical properties, which affect the subsequent processing technology and product quality. The butt joint end is the part of the end of the disc element used for connecting with other disc elements. Through the processing and connection of the butt joint end, a plurality of disc elements can be connected into a continuous wire, so that the disc elements are prevented from being frequently replaced during wire drawing, thereby improving the wire drawing efficiency. The mark is the identification or symbol on the butt joint end, which is used to distinguish the disc elements of different materials, so as to facilitate subsequent cutting of the wire into products of different materials according to the materials.

[0089] It can be understood that by detecting the material, it can be found in advance whether the two disc elements are made of the same material or can be butt jointed. If the butt joint is possible, the corresponding butt joint mode can be determined according to the material, so as to avoid quality problems caused by material mismatch during butt joint and wire drawing.

[0090] It can be understood that marking the butt joint end of different materials can ensure that the operator can clearly identify the disc elements of different materials in the subsequent butt joint and wire drawing process. Since the processing methods of different wires are different, the wires of different materials need to be cut after wire drawing, so as to avoid process errors caused by material differences, thereby improving the quality of the product and the reliability of the process.

[0091] In a specific implementation, before the wire drawing process is performed, the material of the first and second to-be-drawn disc elements needs to be detected first. The detection can find the corresponding material from a material table according to the numbers of the first and second to-be-drawn disc elements. If the detection result shows that the materials of the first and second to-be-drawn disc elements are different, the butt joint ends of the two disc elements need to be marked. The marking can be realized by applying different colored marking paint to the butt joint ends, pasting labels, or other ways.

[0092] Based on the first embodiment of the present application, in the second embodiment of the present application, the same or similar contents as the above-mentioned first embodiment can be referred to the above introduction, and will not be described in detail. On this basis, please refer to Figure 2 , step S20 further includes steps S01-S02:

[0093] Step S01, annealing treatment and vibration treatment are performed on the butt joint of the first and second to-be-drawn disc elements;

[0094] Step S02, surface sand blasting treatment and vibration treatment are performed on the to-be-drawn disc element after the annealing treatment, and then surface polishing treatment is performed on the to-be-drawn disc element.

[0095] It should be noted that the surface sand blasting treatment is a surface treatment process, which removes the butt joint material protruding at the butt joint by spraying abrasive (such as sand particles), and removes the oxides, dirt and other impurities formed on the surface after annealing. The surface polishing treatment is a surface treatment process, which polishes the butt joint by using polishing tools (such as sandpaper, grinding wheel) to remove the small defects on the surface and improve the surface finish.

[0096] It can be understood that the annealing treatment reduces the hardness of the disc element and improves its plasticity and toughness, and because the internal molecules of the butt joint are more active during the annealing process, the vibration treatment at this time can better release the internal stress of the butt joint, improve the internal structure of the butt joint, and improve the uniformity and stability of the material, thereby reducing the defects caused by stress concentration.

[0097] It can be understood that because the first and second to-be-drawn disc elements are butt jointed, there will be a protrusion of butt joint material at the butt joint. In order to remove the protrusion and make the diameter of the disc element wire uniform, sand blasting treatment is used to remove the protrusion at the butt joint after annealing treatment. Because the disc element wire will vibrate during sand blasting, vibration treatment is performed during sand blasting to accelerate the falling off of the protrusion and make the internal stress concentration of the butt joint dissipate faster.

[0098] It can be understood that, by annealing treatment and vibration treatment, the hardness of the butt joint is reduced, the plasticity and toughness are improved, the internal stress is released, the uniformity and stability of the material are improved, the difficulty of wire drawing of the butt joint is reduced, the diameter of the butt joint of the coil wire is the same as the rest, and the butt joint is avoided to be broken during wire drawing, thereby reducing the failure rate of the coil wire drawing.

[0099] Further, the oscillation frequency of the sandblasted coil to be drawn is not the same as the vibration frequency of the vibration treatment, and is not an integer multiple.

[0100] It should be noted that the oscillation frequency is the vibration frequency generated on the surface of the coil wire after sandblasting treatment. The oscillation frequency is related to the impact of the abrasive during sandblasting and the physical properties of the coil. The vibration frequency is the frequency of the vibration energy applied during the vibration treatment. The integer multiple relationship is a mathematical relationship between the two frequencies, that is, one frequency is an integer multiple of the other frequency. For example, if one frequency is 100 Hz and the other frequency is 200 Hz, the two frequencies are in an integer multiple relationship.

[0101] It can be understood that, since resonance may cause excessive vibration of the coil surface, different vibration frequencies are selected and ensured not to be in an integer multiple relationship, so as to effectively avoid the resonance phenomenon and avoid affecting the surface quality and internal structure.

[0102] It can be understood that different vibration frequencies can also more comprehensively release the internal stress of the coil, improve the internal structure, and improve the uniformity and stability of the material.

[0103] Optionally, step S01 further comprises:

[0104] When the diameters of the first coil to be drawn and the second coil to be drawn are greater than the preset diameter, the butt joint of the first coil to be drawn and the second coil to be drawn is subjected to annealing treatment and vibration treatment.

[0105] It should be noted that the diameter is the diameter of the cross section of the coil before wire drawing treatment, which is a parameter for measuring the thickness of the coil. The preset diameter is a parameter for judging whether the coil needs to be subjected to annealing treatment.

[0106] It can be understood that, since the work hardening of the coil wire with a small diameter (such as less than 4.5 mm) is relatively small during cold working, the hardness does not increase significantly, therefore, in order to reduce the process, coils with a diameter less than 4.5 mm are not subjected to annealing treatment, so as to improve the efficiency of the coil wire drawing.

[0107] Further, when the diameters of the first coil to be drawn and the second coil to be drawn are greater than the preset diameter, the critical interface reduction rate of 13% to 19% is split during wire drawing treatment.

[0108] It should be noted that the critical interface reduction rate is the reduction rate when the cross-sectional area of the disc element reaches a critical value during the wire drawing process.

[0109] It can be understood that the critical interface reduction rate is an important parameter for measuring the degree of deformation of the material during the wire drawing process, expressed in percentage, and controlling the critical interface reduction rate between 13% and 19% can ensure that the deformation behavior and performance change of the material during the wire drawing process are within a controllable range, thereby optimizing the strength and toughness of the material and improving the performance of the final product.

[0110] It can be understood that a moderate critical interface reduction rate can reduce the risk of wire breakage caused by excessive reduction rate, ensuring the stability of the wire drawing process. Therefore, after simulation experiments, it is determined that the critical interface is between 13% and 19%, which can maximize the efficiency of the wire drawing process and reduce the failure or repeated wire drawing caused by improper reduction rate.

[0111] Based on the first and second embodiments of the present application, in the third embodiment of the present application, the same or similar contents as the above embodiments can be referred to the above introduction, and will not be described in detail. On this basis, please refer to Figure 3 , step S10 further comprises steps S1-S4:

[0112] Step S1, mechanically removing the oxide film from the first and second wire drawing disc elements;

[0113] Step S2, cutting off 5-10 cm of one end of the first wire drawing disc element as a first butt joint end, and cutting off 5-10 cm of one end of the second wire drawing disc element as a second butt joint end;

[0114] Step S3, polishing the first butt joint end and the second butt joint end;

[0115] Step S4, applying a paste-like solvent to the first butt joint end and the second butt joint end, and welding the polished first butt joint end and the second butt joint end to complete the butt joint of the first and second wire drawing disc elements.

[0116] It should be noted that the butt joint end is the part of the disc element end used for connecting with other disc elements. The paste-like solvent is an auxiliary material used for welding, usually mixed by multiple chemical components, having certain viscosity and fluidity, used to improve the welding quality and connection strength. Welding is a process of heating the material to melt and connect together, used to firmly connect the butt joint ends of two disc elements.

[0117] It can be understood that due to the oxidation layer formed on the surface of the disc element during storage and transportation, the welding quality will be affected, resulting in welding defects such as pores, slag inclusion, etc., and the disc element surface may be contaminated with oil, dust or other impurities, which will interfere with the welding process and reduce the welding quality. Cutting off 5-10 cm can ensure that the surface of the welding point is clean, without oxidation layer and impurities, reducing the defects such as pores and slag inclusion during welding, improving the strength and reliability of the welded joint, and thus improving the welding quality.

[0118] It can be understood that due to the additional stress on the end of the disc element during processing and transportation, which may cause cracks or other defects during welding, in order to make the stress distribution of the welded joint more uniform, therefore, by cutting off 5-10 cm of one end of the disc element, the stress concentration can be reduced, and the strength and toughness of the welded joint can be improved.

[0119] Further, if the first and second disc elements to be drawn are made of aluminum, the raw materials of the paste-like solvent at least include:

[0120] fluoride, chloride and aluminum oxide;

[0121] The preparation method of the preset paste-like solvent includes:

[0122] Mixing the mixed powder of fluoride, chloride and aluminum oxide with distilled water in a ratio of two to one to obtain the paste-like solvent.

[0123] It should be noted that fluoride is a compound containing fluorine element, which has good chemical stability and surface activity. Chloride is a compound containing chlorine element, which has good solubility and chemical activity. Aluminum oxide is a white solid with high melting point, high hardness and good chemical stability. Distilled water is high-purity water prepared by distillation method, which is used for dilution and mixing of chemicals to ensure the uniformity and stability of the paste-like solvent.

[0124] It can be understood that applying the paste-like solvent to the butt end can improve the wettability of the paste-like solvent to aluminum material, ensuring good contact of the welding material. The fluoride in the paste-like solvent can enhance the activity of the flux, making it more effective in removing oxides during welding, promoting the bonding of the filler metal and the base material; the chloride can match the melting temperature of the paste-like flux with the melting temperature of the filler metal, ensuring that the flux and the filler metal can work together during welding, improving the welding quality.

[0125] It is understandable that when the first wire-drawing disk element and the second wire-drawing disk element are made of aluminum, fluorides and chlorides will corrode the aluminum, and the paste solvent will be squeezed onto the surfaces of the first wire-drawing disk element and the second wire-drawing disk element when the first wire-drawing disk element and the second wire-drawing disk element are docked, thereby corroding the surfaces of the first wire-drawing disk element and the second wire-drawing disk element. In order to reduce the corrosiveness of fluorides and chlorides on the surface of the aluminum disk element and ensure the welding characteristics of fluorides and chlorides, aluminum oxide is added to the paste solvent to protect the surfaces of the first wire-drawing disk element and the second wire-drawing disk element, thereby avoiding corrosion and breakage of the surface at the docking point after the first wire-drawing disk element and the second wire-drawing disk element are docked.

[0126] It should be noted that the above examples are only used to understand the present application and do not constitute a limitation on the wire drawing process of the disk element of the present application. More simple transformations based on this technical concept are all within the scope of protection of the present application.

[0127] The above description is only part of the embodiments of the present application and does not limit the patent scope of the present application. All equivalent structural transformations made by using the contents of the present application specification and drawings under the technical concept of the present application, or direct / indirect application in other related technical fields are included in the patent protection scope of the present application.

Claims

1. A wire drawing process for a disk element, characterized in that: When it is necessary to dock the disc element, the process includes: S10, performing mechanical deoxidation treatment on the first and second wire-drawing coils, and then docking them; S20, performing annealing, vibration treatment, and surface treatment on the joint between the first wire-drawing disk element and the second wire-drawing disk element; S30, passing the wire-drawing disk element to be annealed and surface-treated in step S20 through a preset eye mold, performing a wire-drawing process, and drawing it out from the other end of the eye mold, completing one wire-drawing operation; S40, repeating step S30 until the thread drawing process is completed after a preset number of eye molds have been processed.

2. The process according to claim 1, wherein The step of performing annealing, vibration treatment, and surface treatment on the joint between the first wire-drawing disk element and the second wire-drawing disk element includes: Performing annealing and vibration treatment on the joint between the first wire-drawing disk element and the second wire-drawing disk element; The surface of the wire-drawing disc element to be annealed is subjected to sandblasting and vibration treatment, and then the surface of the wire-drawing disc element to be annealed is subjected to grinding treatment.

3. The process according to claim 2, wherein The oscillation frequency of the wire-drawing disk element after sandblasting is not the same as the vibration frequency of the vibration treatment, and is not an integer multiple of the vibration frequency.

4. The process according to claim 2, wherein The step of performing annealing and vibration treatment on the joint between the first wire-drawing disk element and the second wire-drawing disk element includes: When the diameters of the first wire-to-be-drawn disk element and the second wire-to-be-drawn disk element are larger than a set diameter, the joints between the first wire-to-be-drawn disk element and the second wire-to-be-drawn disk element are subjected to annealing and vibration treatments.

5. The process according to claim 4, wherein When the diameters of the first and second wire-drawing discs are larger than the set diameters, a critical surface reduction rate of 13% to 19% is generated during the wire-drawing process.

6. The process according to claim 1, wherein The step of docking the first and second wire-drawing coils after mechanically removing the oxidation film comprises: Performing mechanical deoxidation film treatment on the first wire-drawing coil and the second wire-drawing coil; Cut off 5-10 cm of one end of the first wire-drawing reel to be used as a first butt joint end, and cut off 5-10 cm of one end of the second wire-drawing reel to be used as a second butt joint end; Grinding the first butt end and the second butt end; A paste solvent is applied to the first butt joint end and the second butt joint end, and the first butt joint end and the second butt joint end that have been polished are welded to complete the butt joint between the first wire-drawing disk element and the second wire-drawing disk element.

7. The process according to claim 6, wherein If the first wire-drawing disk element and the second wire-drawing disk element are made of aluminum, the raw materials of the paste solvent include at least: Fluorides, chlorides, and aluminum oxides; The preparation method of the preset paste solvent comprises: The mixed powder of the fluoride, the chloride and the aluminum oxide is mixed with distilled water in a ratio of two to one to obtain the paste solvent.

8. The process according to claim 1, wherein Before the step of performing annealing, vibration and surface treatment on the joint between the first wire-drawing disk element and the second wire-drawing disk element, the method further includes: Detecting the materials of the first wire-drawing disk element and the second wire-drawing disk element; When the materials of the first wire-drawing disk element and the second wire-drawing disk element are different, the butt end is marked.

9. The process according to claim 1, wherein In step S30, the central axis of the eye mold is tangent to the vertex of the line arc, and the line arc is an arc or curved shape formed by the product during the drawing process of the disc element.

10. The process according to claim 1, wherein During the thread extraction process, the average surface reduction rate is controlled to be 22% to 28%, and the average surface reduction rate is determined by the number of the eye molds.

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