Production method of silver-based alloy wire

Abstract

The invention relates to the technical field of bonding wire processing, and particularly discloses a production method of a silver-based alloy wire, which comprises the following steps: fusing a part of silver raw material and alloy element raw material into intermediate alloy, and smelting the intermediate alloy and the remaining silver raw material to obtain the silver-based alloy wire. The silver-based alloy wire is prepared through the procedures of directional solidification continuous casting, heavy drawing / medium drawing, first-time annealing, fine drawing, second-time annealing, superfine drawing, third-time annealing and coil dividing and winding; in the directional solidification continuous casting process, vacuumizing is conducted, argon is injected, and then smelted metal liquid is dragged under the medium-frequency electric induction frequency of 4-6 kHZ and the argon flow of 0.1-0.2 L / min till the end; a water-based lubricant for wire drawing is further adopted in the superfine wire drawing procedure, and the concentration of the water-based lubricant is 3.0-4.0%. According to the silver-based alloy wire production method, the quality of the silver-based alloy wire is obviously improved by adjusting technological parameters of all the steps in the silver-based alloy wire production method.

Description

TECHNICAL FIELD

[0001] The application relates to the bonding wire processing technical field, in particular to a silver-based alloy wire production method. BACKGROUND

[0002] Silver-based bonding wire is a material alloyed by silver and other metal elements, which has good electrical conductivity and corrosion resistance. It is commonly used in the manufacture of electronic components, connectors and packaging materials, and can provide reliable electrical connection and durability. Silver-based alloy wire has important applications in the electronic industry and can meet the requirements of high-performance electronic products.

[0003] In the manufacturing process of silver alloy wire, due to the mismatch between raw material composition and production method, there may be a certain difference in the content of silver in the alloy in different parts or different batches, which may affect the quality and performance of the silver alloy wire, and therefore needs to be controlled and adjusted during production. SUMMARY

[0004] In order to improve the quality of silver alloy wire, the application provides a silver-based alloy wire production method.

[0005] In the first aspect, the application provides a silver-based alloy wire production method, which adopts the following technical scheme: A silver-based alloy wire production method, part of silver raw materials and alloy element raw materials are fused into intermediate alloy, then the intermediate alloy and the remaining silver raw materials are melted, and the silver-based alloy wire is obtained through the processes of directional solidification continuous casting, large / middle drawing, first annealing, fine drawing, second annealing, ultra-fine drawing, third annealing and winding; The directional solidification continuous casting process first evacuates and injects argon, then melts the metal liquid under the medium frequency induction frequency of 4-6kHZ, and pulls it until the end under the argon flow of 0.1-0.2 liters / minute; The ultra-fine drawing process also uses a lubricant for drawing, with a concentration of 3.0-4.0%.

[0006] By adopting the above technical scheme, the prepared raw materials and intermediate alloy are subjected to directional solidification continuous casting, the molten metal liquid generates transverse and radial eddy currents under the medium frequency induction frequency of 4-6kHZ, the liquid self-overturns to form self-stirring eddy current, and this process can continue until the end of the melting and pulling. The whole pulling process is carried out under the continuous eddy stirring, so that the alloy composition is very uniform from beginning to end and there is no weight segregation phenomenon; and the directional solidification continuous casting is carried out under the argon flow of 0.1-0.2 liters / minute, so that the metal liquid forms a specific crystal orientation during the solidification process. By controlling the temperature and flow, the metal liquid forms an ordered grain structure during the solidification process, thereby further improving the uniformity and strength of the material.

[0007] Then the metal wire is changed in diameter and mechanical properties by drawing through large / medium drawing, and then the material internal stress and defects are eliminated through the process of heating and cooling to improve the plasticity and toughness of the material. Then the diameter of the metal wire is further refined and the mechanical properties are improved by fine drawing. Then the material structure and properties are further improved by the second annealing.

[0008] Then the diameter of the metal wire is further refined to the required size and performance by ultra-fine drawing. A lubricant is used during drawing, and the concentration of the lubricant is increased to 3.0-4.0%, which can reduce the friction and temperature during ultra-fine drawing, thereby improving the drawing efficiency and product quality.

[0009] Finally, the third annealing is performed to ensure that the material structure and properties meet the requirements. The prepared silver-based alloy wire is wound into a roll for subsequent processing and use.

[0010] As preferred: the alloying element is 0.5-1.2wt% of the total silver element mass; the alloying element is at least one of Cu, Fe, Ni, Zn, In and La.

[0011] By adopting the above technical solution, silver is an excellent electrically conductive and thermally conductive material, and the alloy bonding wire uses silver as the base element to form an infinite solid solution, which can effectively improve the electrical conductivity and thermal conductivity of the bonding wire. The silver matrix can improve the strength and hardness of the bonding wire, making it have better wear resistance and corrosion resistance; it can also improve the weldability of the bonding wire, making it more convenient and reliable during manufacturing and assembly.

[0012] In the alloying element, the Cu element cooperates with at least one of the trace elements of Fe, Ni, Zn, In and La, and the alloying element is in the range of 0.5-1.2wt% of the total silver element mass. The alloying element can form a continuous solid solution with silver, reduce the grain boundary voltage, and cooperate with the production process conditions of the application, thereby improving the strength of the alloy, reducing electrochemical corrosion, enhancing the breaking force of the alloy, facilitating the subsequent stretching process of the alloy, and thereby increasing the strength and hardness of the silver-based alloy bonding wire.

[0013] And the silver alloying element is at least one of Cu, Fe, Ni, Zn, In and La, wherein the Fe and Ni elements can increase the strength and hardness of the alloy; the In element can improve the surface tension of the alloy liquid, improve the ball forming performance of the alloy during bonding, and improve the plasticity and toughness of the silver alloy, and improve its ductility and toughness. The Zn element can improve the hardness and strength of the silver-based alloy wire, increase its wear resistance and corrosion resistance, and also improve the electrical conductivity and thermal conductivity of the silver-based alloy wire, thereby improving its electrical conductivity and thermal conductivity. The La element can improve the high-temperature stability and oxidation resistance of the silver-based alloy wire, thereby prolonging its service life.

[0014] The application incorporates Cu-based Fe, Ni, Zn, In and La into silver-based alloy wires, and the alloy elements are 0.5-1.2wt% of the total silver element mass, the alloy elements synergize in the silver-based alloy wires, play the role of multi-alloying, effectively solve the corrosion resistance problem, maintain high conductivity and heat conductivity, reduce the material cost, and improve the quality of silver-based alloy bonding wires.

[0015] As preferred: the direct solidification continuous casting process obtains a rod with a diameter of 6-8mm; the large-drawing / medium-drawing process draws a wire with a diameter of 0.08-0.1mm; the fine-drawing process draws a wire with a diameter of 0.04-0.05mm; and the ultra-fine-drawing process draws a wire with a diameter of 0.016-0.03mm.

[0016] As preferred: the temperature of the first annealing is 450-510℃.

[0017] As preferred: the temperature of the second annealing is 430-480℃, and the speed is 180-220rpm.

[0018] As preferred: the temperature of the third annealing is 400-600℃, and the speed is 160-200rpm.

[0019] As preferred: the third annealing is obtained through the steps of unwinding the wire, ultrasonic cleaning, high-pressure jet flushing, annealing, coating, drying and winding; and the unwinding adopts a wet unwinding method.

[0020] Through the above technical solution, the ultrasonic cleaning emulsifies the dirt and drawing lubricant remaining on the surface of the wire, so that the high-pressure jet flushing can successfully flush away the remaining substances on the surface of the wire; Different from the traditional online annealing, the process adopts a wet unwinding method, specifically, the wire to be annealed after drawing is immediately soaked in pure water, and then hung on the unwinding system of the annealing furnace, the system is provided with a water-soaking plate capable of automatic lifting, after the water-soaking plate is lifted up, the wire is immersed in water, and during the whole annealing process, the wire is always immersed in water; The principle is that the finished wire drawn out is generally long, 10000-20000 meters, the annealing speed is 55 meters / minute, and one roll of wire needs to be annealed for at least 2-4 hours, under this condition, the drawing lubricant remaining on the surface of the wire has been dried and hardened during the whole process, the ultrasonic cleaning is difficult to emulsify the hardened surface dirt and lubricant residues, and then the high-pressure jet flushing also cannot play the due role, the surface cleaning fails, and the dirt on the surface of the wire will cause the failure of the final soldering application.

[0021] The wet wire unwinding method plus high-purity water soaking before annealing makes the wire surface keep wet during the whole annealing process. The ultrasonic cleaning can easily emulsify the residual dirt and lubricant on the surface, so that the high-pressure jet cleaning can continuously maintain high-efficiency cleaning state, and the wire surface can reach the standard cleaning effect, and the product quality is stable. At the same time, the wire drawing process can use relatively high concentration of wire drawing lubricant, so as to improve the surface brightness of the wire and the service life of the die. As preferred: the wet wire unwinding is soaking the wire in pure water for 20-40 minutes.

[0022] In summary, the present application includes at least one of the following beneficial technical effects: (1) The present application adjusts the directional solidification continuous casting process in the silver-based alloy wire production method, first evacuates and then injects argon, and then under the medium-frequency induction frequency of 4-6 kHz, the molten metal liquid is pulled until the end of each raw material type and doping amount under the argon flow of 0.1-0.2 L / min, thereby improving the quality of the silver-based alloy wire.

[0023] (2) The present application uses a water-based lubricant for wire drawing in the ultra-fine wire drawing process in the silver-based alloy wire production method, and adjusts the concentration to 3.0-4.0%, thereby improving the quality of the silver-based alloy wire.

[0024] (3) The present application adjusts the process parameters of each step in the silver-based alloy wire production method, so that the tensile strength, shear force, wire tension and reliability of the obtained silver-based alloy wire are the highest, which are 243 MPa, 38.9 g, 9.3 g and 489 times respectively, and the resistivity is the minimum, which is 1.50 µΩ / cm, thereby significantly improving the quality of the silver-based alloy wire. DETAILED DESCRIPTION

[0025] The present application will be further described in detail below in combination with specific embodiments.

[0026] The following raw materials in the present application are all commercially available products, and are all to make the raw materials of the present application fully disclosed, and should not be understood as limiting the source of the raw materials.

[0027] The raw materials of the present application are selected as follows: silver particles with a purity of 99.999%; high-purity copper with a purity of 99.999%; high-purity iron with a purity of 99.999%; high-purity indium with a purity of 99.95%; high-purity nickel with a purity of 99.999%; high-purity zinc with a purity of 99.999%; and high-purity lanthanum with a purity of 99.95%. EMBODIMENT EMBODIMENT 1

[0028] The production method of the silver-based alloy wire of embodiment 1 is as follows: (1) Intermediate alloy According to Table 1, part of silver raw materials and copper raw materials are fused into intermediate alloy together with trace alloying elements in a vacuum alloying furnace; (2) Directional solidification continuous casting The remaining silver raw materials and intermediate alloy are smelted in a vacuum environment of 3x10 -3 MPa, and argon is injected. The temperature is heated to 1800℃ for 10 minutes. Directional solidification is used under a medium frequency induction frequency of 4kHZ. Then, the pulling speed is 45mm / min. The argon flow is kept at 0.1L / min until the end. The continuous casting is into a 5mm diameter rod; (3) Large drawing / medium drawing The 5mm diameter rod is stretched on a large drawing machine / medium drawing machine to obtain a 0.06mm diameter wire; (4) First annealing The 0.06mm diameter wire is annealed in a 430℃ annealing furnace; (5) Fine drawing The 0.06mm diameter wire after the first annealing is stretched to obtain a 0.03mm diameter wire; (6) Second annealing The 0.03mm diameter wire is annealed for the second time at a temperature of 400℃ and a speed of 160rpm; (7) Ultra-fine drawing The wire after the second annealing is stretched to obtain a 0.015mm diameter wire. The ultra-fine drawing process also uses a drawing lubricant with a concentration of 3.0%; (8) Third annealing The 0.015mm diameter wire is annealed for the third time in a 350℃ annealing furnace at a speed of 150rpm; (9) Separate winding The product after the third annealing is wound on the reel according to the customer's length requirement. The wound product is put into a vacuum bag for vacuum sealing and labeling. Example 2

[0029] The production method of the silver-based alloy wire of Example 2 is as follows: (1) Intermediate alloy According to Table 1, part of silver raw materials and copper raw materials are fused into intermediate alloy together with trace alloying elements in a vacuum alloying furnace; (2) Directional solidification continuous casting The remaining silver raw materials and intermediate alloy are smelted in a vacuum environment of 3x10 -3The silver-based alloy wire is produced by the following steps: vacuum induction melting under the vacuum environment of 10-4 Pa, and then argon is injected and heated to 1800℃ for 10 minutes, directional solidification is adopted under the medium frequency induction frequency of 6 kHz, then the pulling starts at the pulling speed of 45 mm / min, meanwhile, the argon flow is kept at 0.2 L / min until the end, and the continuous casting is performed to obtain the rod with the diameter of 5 mm; (3) large drawing / medium drawing The rod with the diameter of 5 mm is drawn on the large drawing machine / medium drawing machine to obtain the wire with the diameter of 0.06 mm; (4) first annealing The wire with the diameter of 0.06 mm is annealed in the annealing furnace at 430℃; (5) fine drawing The wire with the diameter of 0.06 mm after the first annealing is drawn to obtain the wire with the diameter of 0.03 mm; (6) second annealing The wire with the diameter of 0.03 mm is annealed for the second time at the annealing temperature of 400℃ and the speed of 160 rpm; (7) ultra-fine drawing The wire after the second annealing is drawn to obtain the wire with the diameter of 0.015 mm; wherein, the drawing lubricant is used in the ultra-fine drawing process, and the concentration is 4.0%; (8) third annealing After the wire with the diameter of 0.015 mm is unwound, the ultrasonic cleaning is performed, then the annealing is performed in the annealing furnace at 350℃ and the speed of 150 rpm, then the coating, drying and winding are performed; (9) separate winding The product after the third annealing is wound on the reel according to the length requirement of the customer; the product after the separate winding of each reel is placed in the vacuum bag for vacuum sealing, and the label is attached. Example 3

[0030] The production method of the silver-based alloy wire of Example 3 is the same as that of Example 1, and the difference lies in that the chemical composition of the silver-based alloy wire is different, which is specifically shown in Table 1.

[0031] The chemical composition (wt%) of the silver-based alloy wire of Examples 1-3 is shown in the following table: Cu Fe Ni Zn In La Ag Example 1 1.0 0.01 - 0.0003 - 0.003 Balance Example 2 1.0 0.01 - 0.0003 - 0.003 Balance Example 3 0.5 - 0.01 - 0.001 - Balance Example 4

[0032] The production method of the silver-based alloy wire of Example 4 is the same as that of Example 1, and the difference lies in that the directional solidification continuous casting process is used to obtain the rod with the diameter of 6 mm; the large drawing / medium drawing process is used to draw the wire with the diameter of 0.08 mm; the fine drawing process is used to draw the wire with the diameter of 0.04 mm; and the ultra-fine drawing process is used to draw the wire with the diameter of 0.016 mm. Example 5

[0033] The production method of the silver-based alloy wire of Example 5 is the same as that of Example 1, except that the directional solidification continuous casting process obtains a 8 mm diameter bar; the large-drawing / medium-drawing process is stretched to obtain a 0.1 mm diameter wire; the fine-drawing process is stretched to obtain a 0.05 mm diameter wire; and the ultra-fine-drawing process is stretched to obtain a 0.03 mm diameter wire. Examples 6-7

[0034] The production method of the silver-based alloy wire of Examples 6-7 is the same as that of Example 1, except that the temperature of the first annealing is 450℃ and 510℃, respectively. Examples 8-9

[0035] The production method of the silver-based alloy wire of Examples 8-9 is the same as that of Example 1, except that the temperature of the second annealing is 430℃ and 480℃, respectively, and the speed is 200 rpm. Examples 10-11

[0036] The production method of the silver-based alloy wire of Examples 10-11 is the same as that of Example 1, except that the temperature of the third annealing is 400℃ and 600℃, respectively, and the speed is 180 rpm. Examples 12-13

[0037] The production method of the silver-based alloy wire of Examples 12-13 is the same as that of Example 1, except that the third annealing is after the wire is unwound, ultrasonic cleaning, high-pressure jet flushing, annealing, coating, drying and winding; wherein the wet unwinding method is used, i.e. the wire is soaked in pure water for 20 minutes and 40 minutes, respectively, before unwinding. Comparative Examples

[0038] Comparative Example 1 The production method of the silver-based alloy wire of Comparative Example 1 is the same as that of Example 1, except that in the directional solidification continuous casting process, the medium-frequency induction frequency is 3.5 kHz.

[0039] Comparative Example 2 The production method of the silver-based alloy wire of Comparative Example 2 is the same as that of Example 1, except that in the directional solidification continuous casting process, the medium-frequency induction frequency is 6.5 kHz.

[0040] Comparative Example 3 The production method of the silver-based alloy wire of Comparative Example 3 is the same as that of Example 1, except that in the directional solidification continuous casting process, the concentration of the lubricant used in the ultra-fine-drawing process is 2.5%.

[0041] Comparative Example 4 The production method of the silver-based alloy wire of Comparative Example 4 is the same as that of Example 1, except that the lubricant concentration used in the super-fine drawing process in the directional solidification continuous casting process is 4.5%. Performance detection

[0042] The silver-based alloy wires obtained in different Examples 1-13 and Comparative Examples 1-4 are subjected to performance detection according to GB / T34502-2017 standard, wherein the reliability is embodied by cold and hot impact cycle test of the silver-based alloy wire, and the detection results are shown in Table 2.

[0043] Table 2 Performance detection results of different silver-based alloy wires Tensile strength / MPa Shear force / g Wire pull / g Reliability (cold-heat shock cycle test) / times Resistivity / µΩ / cm Example 1 232 34.7 8.1 482 1.77 Example 2 238 34.9 8.5 483 1.73 Example 3 235 36.9 9.1 485 1.50 Example 4 236 34.5 8.5 489 1.54 Example 5 236 35.7 8.6 484 1.53 Example 6 238 35.8 8.9 488 1.56 Example 7 241 35.2 8.5 488 1.59 Example 8 241 35.5 8.8 492 1.62 Example 9 238 36.3 8.8 494 1.55 Example 10 241 34.3 8.9 486 1.59 Example 11 239 36.5 9.0 486 1.50 Example 12 243 38.9 9.2 487 1.50 Example 13 241 38.1 9.3 488 1.52 Comparative Example 1 220 30.1 6.5 450 1.92 Comparative Example 2 218 30.5 6.1 451 1.87 Comparative Example 3 221 31.2 6.5 452 1.85 Comparative Example 4 224 30.5 6.2 450 1.98 It is shown from the detection results in Table 2 that the tensile strength, shear force, wire tension and reliability of the silver-based alloy wire obtained in the application are the highest, which are 243 MPa, 38.9 g, 9.3 g and 489 times respectively, and the resistivity is the lowest, which is 1.50 µΩ / cm, which obviously improves the quality of the silver-based alloy wire.

[0044] It is found from the index data of the silver-based alloy wires in Examples 1-3 that the performance is excellent, which indicates that when the alloy element of the silver-based alloy wire is 0.5-1.2 wt% of the total silver element, and the alloy element is at least one of Fe, Ni, Zn, In and La mainly containing Cu, the quality of the silver-based alloy wire is improved.

[0045] In Examples 1 and 4-5, the tensile strength, shear force, wire tension and reliability of the silver-based alloy wire obtained in Examples 4-5 are higher than those in Example 1, and the resistivity is lower than that in Example 1, which indicates that when the rod with a diameter of 6-8 mm is obtained by continuous casting in the directional solidification continuous casting process, the wire with a diameter of 0.08-0.1 mm is obtained by drawing in the large / middle drawing process, the wire with a diameter of 0.04-0.05 mm is obtained by drawing in the fine drawing process, and the wire with a diameter of 0.016-0.03 mm is obtained by drawing in the super-fine drawing process, which is more appropriate, and improves the quality of the silver-based alloy wire.

[0046] In Examples 1 and 6-7, the tensile strength, shear force, wire tension and reliability of the silver-based alloy wire obtained in Examples 6-7 are higher than those in Example 1, and the resistivity is lower than that in Example 1, which indicates that when the temperature of the first annealing is 450-510℃, which is more appropriate, and improves the quality of the silver-based alloy wire, which may be related to adjusting the temperature of the first annealing to 450-510℃, which can improve the microstructure of the silver-based alloy wire.

[0047] In Example 1 and Examples 8-9, the tensile strength, shear force, wire tension and reliability of the silver-based alloy wire obtained in Examples 8-9 are higher than those of Example 1, and the resistivity is lower than that of Example 1, indicating that the temperature of the second annealing is 430-480℃ and the speed is 180-220rpm, which is more appropriate, and improves the quality of the silver-based alloy wire, which may be related to adjusting the temperature of the second annealing to 430-480℃ and the speed to 180-220rpm, which can improve the microstructure of the silver-based alloy wire.

[0048] In Example 1 and Examples 10-11, the tensile strength, shear force, wire tension and reliability of the silver-based alloy wire obtained in Examples 10-11 are higher than those of Example 1, and the resistivity is lower than that of Example 1, indicating that the temperature of the third annealing is 400-600℃ and the speed is 160-200rpm, which is more appropriate, and improves the quality of the silver-based alloy wire, which may be related to adjusting the temperature of the third annealing to 400-600℃ and the speed to 160-200rpm, which can improve the microstructure of the silver-based alloy wire.

[0049] In Example 1 and Examples 12-13, the tensile strength, shear force, wire tension and reliability of the silver-based alloy wire obtained in Examples 12-13 are higher than those of Example 1, and the resistivity is lower than that of Example 1, indicating that the third annealing is after the wire is unwound, and then ultrasonic cleaning, high-pressure jet flushing, annealing, coating, drying and winding are performed; and adjusting the unwinding to be wet unwinding, i.e. soaking the wire in pure water for 20-40 minutes before unwinding, which is more appropriate, and improves the quality of the silver-based alloy wire, which may be related to adjusting the third annealing to be after the wire is unwound, and then ultrasonic cleaning, high-pressure jet flushing, annealing, coating, drying and winding are performed; and adjusting the unwinding to be wet unwinding, i.e. soaking the wire in pure water for 20-40 minutes before unwinding, which can improve the microstructure of the silver-based alloy wire.

[0050] In addition, according to the data of the various indicators of the silver-based alloy wire of Comparative Examples 1-4 and Example 1, it is found that in the production method of the silver-based alloy wire, vacuumizing and then flushing with argon in the directional solidification continuous casting process, then pulling the molten metal liquid at an argon flow rate of 0.1-0.2 liters / minute under a medium-frequency induction frequency of 4-6kHZ until the end; and using a water-based lubricant for wire drawing and adjusting the concentration to 3.0-4.0% in the ultra-fine wire drawing process, can improve the quality of the silver-based alloy wire to varying degrees.

[0051] The specific embodiments are merely an explanation of the present application, and are not a limitation of the present application, and those skilled in the art can make modifications to the embodiments without creative contribution after reading the present specification, but as long as the modifications are within the scope of the claims of the present application, they are protected by the patent law.

Claims

1. A method for producing a silver-based alloy wire, characterized in that, A portion of the silver raw materials and alloying element raw materials are fused into an intermediate alloy. Then, the intermediate alloy and the remaining silver raw materials are melted and then processed through directional solidification continuous casting, large / medium drawing, first annealing, fine drawing, second annealing, ultra-fine wire drawing, third annealing and slitting winding to obtain silver-based alloy wire. The directional solidification continuous casting process first involves evacuating the vacuum and introducing argon gas, and then drawing the molten metal liquid at an argon gas flow rate of 0.1-0.2 liters / minute at a medium-frequency electro-induction frequency of 4-6 kHz until the process is completed. The ultra-fine wire drawing process also uses a wire drawing lubricant with a concentration of 3.0-4.0%.

2. The method for producing silver-based alloy wire according to claim 1, characterized in that, The alloying element is 0.5-1.2 wt% of the total silver content; the alloying element is at least one of Fe, Ni, Zn, In and La, with Cu as the main component.

3. The method for producing silver-based alloy wire according to claim 1, characterized in that, The directional solidification continuous casting process yields bars with a diameter of 6-8 mm; the large / medium drawing process yields wires with a diameter of 0.08-0.1 mm; the fine drawing process yields wires with a diameter of 0.04-0.05 mm; and the ultra-fine drawing process yields wires with a diameter of 0.016-0.03 mm.

4. The method for producing silver-based alloy wire according to claim 1, characterized in that, The temperature for the first annealing is 450-510℃.

5. The method for producing silver-based alloy wire according to claim 1, characterized in that, The second annealing temperature is 430-480℃, and the speed is 180-220rpm.

6. The method for producing silver-based alloy wire according to claim 1, characterized in that, The third annealing temperature is 400-600℃ and the speed is 160-200rpm.

7. The method for producing silver-based alloy wire according to claim 1, characterized in that, The third annealing is achieved by the following steps after the wire is laid out: ultrasonic cleaning, high-pressure jet rinsing, annealing, coating, drying, and winding; the laying out is done using a wet laying out method.

8. The method for producing silver-based alloy wire according to claim 7, characterized in that, The wet laying method involves soaking the wire in pure water for 20-40 minutes before laying.