Connecting device of metal iodination purification electrode mother wire

Abstract

According to the connecting device of the metal iodination purification electrode mother wire, the third electrode comprises the first part and the second part, and the first part and the second part are used for clamping the metal mother wire, so that the metal mother wire is in close contact with the third electrode, and the contact resistance between the metal mother wire and the electrodes is reduced; therefore, the fusing of the metal female wire caused by overlarge current in the iodination purification process is avoided, and the stability and safety of the operation process are greatly improved. Meanwhile, firmness and stability of connection between the metal female wire and the electrode can be improved through a clamping mode, and compared with a traditional welding or nut fixing mode, disassembly and assembly of the metal female wire can be achieved more easily, the electrode can be reused, and therefore the production cost is reduced.

Description

Technical Field

[0001] This application relates to the technical field of metal iodide purification apparatus, and more specifically, to a connection device for a metal iodide purification electrode wire. Background Technology

[0002] Iodination purification is broadly defined as a chemical vapor deposition method. Its basic principle is as follows: In a vacuum-sealed environment, iodine vapor undergoes a selective synthesis reaction with crude metal raw materials in a low-temperature zone to generate volatile iodides. The volatile iodides migrate to a high-temperature zone and undergo a selective decomposition reaction to generate metal and iodine vapor. The metal is deposited on a hot metal wire, causing the diameter of the metal wire to increase, and finally, an ultra-high purity target metal crystal rod is obtained. The iodine vapor is then returned to the low-temperature zone to continue reacting with the raw materials to achieve the purpose of purification.

[0003] In this process, the metal mother wire serves as the target metal deposition substrate, and its temperature is typically controlled by the voltage and current applied across the electrodes. Therefore, ensuring a good and secure connection between the metal mother wire and the electrodes helps to stabilize the voltage and current, allowing the iodination purification process to proceed smoothly and continuously.

[0004] Currently, the main methods for connecting the metal wire to the electrode are welding or machining a circular hole of the required size on the electrode, passing the metal wire through the electrode, and fixing it at the other end. However, these methods have problems such as difficulty in separating the metal wire and the electrode, loose connection between the metal wire and the electrode leading to non-reusability of the electrode, and excessive contact resistance between the metal wire and the electrode causing the metal wire to melt. Therefore, there is an urgent need to propose a novel connection device for the metal iodide purification electrode wire. Utility Model Content

[0005] To address the aforementioned issues, this application provides a connection device for the metal iodide purification electrode wire. By configuring a third electrode comprising a first part and a second part, the metal wire is clamped between the first and second parts, ensuring tight contact between the metal wire and the third electrode. This reduces the contact resistance between the metal wire and the electrode, thereby preventing the metal wire from melting due to excessive current during the iodide purification process, significantly improving the stability and safety of the operation. Simultaneously, the clamping method enhances the strength and stability of the connection between the metal wire and the electrode. Compared to traditional welding or nut fixing methods, it also facilitates the assembly and disassembly of the metal wire, allowing for electrode reuse and reducing production costs.

[0006] This application provides a connecting device for a metal iodide purification electrode wire, the connecting device comprising: a first electrode (1), a second electrode (2), a third electrode (3), and a metal wire (4).

[0007] The first electrode (1) is connected to the second electrode (2);

[0008] The second electrode (2) includes a connecting groove (21);

[0009] The third electrode (3) is embedded in the connecting groove (21). The third electrode (3) includes a first part (31) and a second part (32) disposed opposite to each other in a first direction in the connecting groove (21). A first through groove (311) is formed on the surface of the first part (31) opposite to the second part (32), and a second through groove (321) is formed on the surface of the second part (32) opposite to the first part (31). The first through groove (311) and the second through groove (321) extend along a second direction orthogonal to the first direction.

[0010] The metal wire (4) is embedded in the through hole (33) formed by the first through groove (311) and the second through groove (321), and abuts against the groove wall of the first through groove (311) and the groove wall of the second through groove (321).

[0011] Furthermore, the dimensions of the first through groove (311) and the second through groove (321) in the first direction are both smaller than the radius of the metal wire (4) in the first direction.

[0012] Furthermore, the sum of the dimensions of the first through groove (311) and the second through groove (321) in the first direction is 1.5 mm to 10 mm.

[0013] Furthermore, the connecting groove (21) includes a first groove (211) and a second groove (212) that are interconnected.

[0014] The first groove (211) is located close to the first electrode (1), and the groove opening size of the first groove (211) is larger than the groove opening size of the second groove (212);

[0015] The first part (31) and the second part (32) of the third electrode (3) each include a first connecting part (34) located in the first groove (211) and a second connecting part (35) located in the second groove (212).

[0016] The dimension of the first connecting part (34) in the slot direction is greater than the dimension of the second connecting part (35) in the slot direction.

[0017] Furthermore, the dimensions of the second connecting portion (35) in the first direction gradually decrease in the direction away from the first electrode (1).

[0018] Furthermore, the second connection portion (35) includes a portion that extends toward the third electrode (3) in a direction away from the first electrode (1).

[0019] Furthermore, the metal mother wire (4) includes a first mother wire (41) and a second mother wire (42).

[0020] The first female wire (41) is located between the first electrode (1) and the third electrode (3);

[0021] One end of the second female wire (42) is perpendicularly connected to one end of the first female wire (41), and the other end extends out of the third electrode (3) along the second direction.

[0022] Furthermore, the angle between the outer wall of the second connecting part (35) and the metal wire (4) is 15°~85°.

[0023] Furthermore, one end of the first electrode (1) is embedded in the connecting groove (21) and threadedly connected to the second electrode (2).

[0024] Furthermore, the distance between the end face of the first female wire (41) away from the second female wire (42) and the wall of the connecting groove (21) is 1 mm to 5 mm.

[0025] Beneficial technical effects:

[0026] This application provides a connecting device for a metal iodide purification electrode wire. In implementation, the metal wire is placed between a first part and a second part. The side of the first part with a first through groove and the side of the second part with a second through groove are moved in a first direction toward each other to form a through hole, so that the metal wire abuts against the walls of the first and second through grooves. Then, the first part, the second part, and the metal wire are together placed downwards into the connecting groove in a second direction, so that the outer walls of the first and second parts abut against the wall of the connecting groove, generating an inward compressive force to clamp the metal wire between the first and second parts. Finally, the first electrode and the second electrode are connected to complete the assembly. The clamping method... This design enables tight contact between the metal wire and the third electrode, significantly reducing the contact resistance between them and preventing the metal wire from melting due to excessive current during iodization purification. Furthermore, clamping the metal wire ensures a more secure and stable connection with the third electrode. Compared to traditional welding or nut fixing methods, after iodization purification, the first and second parts are pushed out of the connecting groove along the second direction, and then moved away from each other, allowing the metal wire to detach from the first and second through grooves. This makes disassembly and assembly of the metal wire easier than welding or other methods, avoiding electrode damage, increasing electrode reusability, and thus reducing production costs. Attached Figure Description

[0027] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the description of the embodiments of this application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 A cross-sectional structural schematic diagram of the connecting device proposed in an embodiment of this application is shown;

[0029] Figure 2 A top view of the third electrode proposed in an embodiment of this application is shown;

[0030] Figure 3 A cross-sectional structural schematic diagram of the second electrode proposed in an embodiment of this application is shown;

[0031] Figure 4 A cross-sectional structural schematic diagram of the third electrode proposed in an embodiment of this application is shown.

[0032] Explanation of reference numerals in the attached figures:

[0033] 1. First electrode;

[0034] 2. Second electrode; 21. Connecting groove; 211. First groove; 212. Second groove;

[0035] 3. Third electrode; 31. First part; 311. First through groove; 32. Second part; 321. Second through groove; 33. Through hole; 34. First connecting part; 35. Second connecting part;

[0036] 4. Metal mother wire; 41. First mother wire; 42. Second mother wire. Detailed Implementation

[0037] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0038] In the accompanying drawings, the size of constituent elements, the thickness of layers, or areas may sometimes be exaggerated for clarity. Therefore, any implementation of this disclosure is not necessarily limited to the dimensions shown in the drawings, and the shapes and sizes of the components in the drawings do not reflect true proportions. Furthermore, the drawings schematically illustrate ideal examples, and any implementation of this disclosure is not limited to the shapes or values ​​shown in the drawings.

[0039] In related technologies, the connection methods between the metal mother wire as the target metal deposition substrate and the electrode mainly include the following three types:

[0040] (1) A target metal electrode is set below the conductive electrode, and the metal mother wire is connected to the target metal electrode by welding. However, poor welding quality will cause the resistance at the weld to increase dramatically, resulting in a large voltage drop when voltage and current are applied. The increased resistance will also cause heat generation, which will cause the metal mother wire to melt from the weld. In addition, when using argon arc welding, electrode (tungsten electrode or tantalum electrode) wear is inevitable during the welding process. The worn electrode part enters the weld joint, contaminating the resulting metal crystal rod. In the end, the metal crystal rod will grow together with the target metal electrode, making it difficult to remove the metal crystal rod from the electrode when it is taken out of the furnace, and it is very easy to damage the metal electrode.

[0041] (2) A circular hole of the required size is machined on the target metal electrode. The metal wire is passed through the target metal electrode and fixed at the other end. The metal wire is then tightened and fixed to the electrode by tightening the nut on the outside. Although this method eliminates the welding process, as the diameter of the metal wire grows, the metal crystal rod will eventually become one with the target metal electrode. After the target metal electrode and the metal crystal rod are cut and separated, they cannot be reused and new metal electrodes need to be re-machined, which increases the cost of iodization production. At the same time, when using this method, it is difficult to achieve a tight connection after the metal wire passes through the circular hole on the target metal electrode. It is very easy to cause excessive local current due to poor connection or poor contact, which will cause the metal wire to melt and result in low production efficiency.

[0042] (3) Use a thin metal such as molybdenum wire to bind the metal mother wire to the electrode. However, due to the relatively poor conductivity between the metal mother wire and the electrode, the wire is prone to breakage during the iodization process. Also, like the welding method, it is difficult to separate the metal crystal rod from the electrode. At the same time, when the diameter and mass of the metal crystal rod are large, the molybdenum wire bound at high temperature cannot withstand the mass of the metal crystal rod and breaks. After the metal crystal rod is separated from the electrode, the end with the molybdenum wire must be cut off, resulting in waste.

[0043] Based on the problems existing in the prior art, this application provides a connection device for metal iodide purification electrode wire. This connection device is not only simpler in structure and cheaper to manufacture and reusable, but also easier to load and disassemble, with a lower fault tolerance rate, which greatly improves production efficiency and reduces production costs.

[0044] See Figure 1 and Figure 2 This application provides a connecting device for a metal iodide purification electrode wire, the connecting device comprising: a first electrode 1, a second electrode 2, a third electrode 3 and a metal wire 4;

[0045] The first electrode 1 is connected to the second electrode 2;

[0046] The second electrode 2 includes a connecting groove 21;

[0047] The third electrode 3 is embedded in the connecting groove 21. The third electrode 3 includes a first part 31 and a second part 32 that are disposed opposite to each other in a first direction in the connecting groove 21. A first through groove 311 is formed on the surface of the first part 31 opposite to the second part 32, and a second through groove 321 is formed on the surface of the second part 32 opposite to the first part 31. The first through groove 311 and the second through groove 321 extend along a second direction orthogonal to the first direction.

[0048] The metal wire 4 is embedded in the through hole 33 formed by the first through groove 311 and the second through groove 321, and abuts against the groove wall of the first through groove 311 and the groove wall of the second through groove 321.

[0049] It should be noted that, see Figure 1 The first direction x is the direction extending along the width of the second electrode 2, and the second direction y is the direction extending along the length of the second electrode 2;

[0050] The first electrode 1 and the second electrode 2 are arranged in the second direction y, and the first electrode 1 and the second electrode 2 are connected.

[0051] The cross-sectional shapes of the first electrode 1 and the second electrode 2 can be rectangular, square, circular, etc.

[0052] The connecting groove 21 is formed inside the second electrode 2, and the connecting groove 21 penetrates the second electrode 2 along the second direction y;

[0053] The third electrode 3 is embedded in the connecting groove 21, meaning that the first part 31 and the second part 32 of the third electrode 3 enter from the groove opening at the upper end of the connecting groove 21 along the second direction y, and the outer walls of the first part 31 and the second part 32 are in close contact with the groove wall of the connecting groove 21.

[0054] The third electrode 3, composed of the first part 31 and the second part 32, has a two-half structure;

[0055] The materials of the first electrode 1, the second electrode 2, and the third electrode 3 include refractory metals such as pure metals Mo, W, Nb, and Ta, and the purity of the pure metals is ≥99.9%.

[0056] The first electrode 1, the second electrode 2, and the third electrode 3 are used as the reference electrode, the auxiliary electrode, and the working electrode, respectively.

[0057] The connecting groove 21 is adapted to the shape of the first part 31 and the second part 32;

[0058] The first through groove 311 penetrates the first part 31 along the second direction y, and the second through groove 321 penetrates the second part 32 along the second direction y;

[0059] The shapes of the first through groove 311 and the second through groove 321 are adapted to the shape of the metal wire 4, ensuring that the metal wire 4 is tightly fitted to the groove walls of the first through groove 311 and the second through groove 321.

[0060] The first through groove 311 and the second through groove 321 are connected to the connecting groove 21 so that the lower end of the metal wire 4 can extend out of the third electrode 3;

[0061] The diameter of the through hole 33 in the first direction x is the same as the diameter of the metal wire 4 in the first direction x.

[0062] In specific implementation, firstly, the side of the first part 31 with the first through groove 311 is placed opposite to the side of the second part 32 with the second through groove 321. Then, the metal wire 4 is placed between the first part 31 and the second part 32. Then, the first part 31 and the second part 32 are moved towards each other along the first direction to form a through hole 33, so that the circumferential sidewall of the metal wire 4 abuts against the groove wall of the first through groove 311 and the groove wall of the second through groove 321. Then, the first part 31, the second part 32 and the metal wire 4 are moved together to the groove opening at the upper end of the connecting groove 21, and then fed into the connecting groove 21 downward along the second direction. The outer walls of the first part 31 and the second part 32 are pressed against the groove wall of the connecting groove 21. Press hard until the first part 31 and the second part 32 are completely embedded in the connecting groove 21, so that the first part 31 and the second part 32 clamp the metal wire 4, and the connection between the electrode and the metal wire 4 is completed.

[0063] In specific implementation, the length of the metal wire 4 in the second direction y is greater than the dimensions of the first through groove 311 and the second through groove 321 in the second direction y.

[0064] The lower end of the metal wire 4 extends out to the second electrode 2 and the third electrode 3, so that the target metal can be deposited on the extended end of the metal wire 4.

[0065] The cross-sectional shape of the metal wire 4 can be cylindrical, square, rhomboid, T-shaped, S-shaped, etc.

[0066] The metal mother wire 4 is made of pure metals such as Ti, Zr, Hf, V, Nb, Ta, Mn, Fe, Co, Ni, and Th, with a purity of ≥99.5%, and is used for the iodination purification of the above target metals.

[0067] By using the connection device provided in this application embodiment, the first part 31 and the second part 32 of the third electrode 3 cooperate with the connecting groove 21 of the second electrode 2 to clamp the metal wire 4, so that the metal wire 4 can be tightly embedded in the through hole 33 formed by the two through grooves. This ensures that the metal wire 4 and the third electrode 3 are in close contact, reducing the contact resistance between them and effectively preventing excessive local current caused by poor connection or poor contact, thereby greatly reducing the risk of the metal wire 4 melting. This connection method also avoids the use of traditional welding processes, thereby eliminating problems such as electrode wear and increased resistance at the weld due to poor welding quality.

[0068] By setting the first part 31 and the second part 32, and combining the tight contact of the wall of the connecting groove 21, the metal wire 4 is firmly fixed between the first part 31 and the second part 32, ensuring a stable connection between the wire and the electrode, and preventing the metal wire 4 from slipping or falling off during the iodination purification process.

[0069] Since the third electrode 3 is connected by being embedded in the connecting groove 21 of the second electrode 2, when it is necessary to disassemble the metal wire 4, it is only necessary to push the first part 31 and the second part 32 upward along the second direction into the connecting groove 21, and then move the first part 31 and the second part 32 away from each other along the first direction to separate the metal wire 4 from the third electrode 3. No destructive cutting or disassembly operation is required, which not only simplifies the disassembly process, but also allows the third electrode 3 and the metal wire 4 to be reused, thereby effectively reducing production costs.

[0070] In some embodiments, see Figure 1 and Figure 2 The dimensions of the first through groove 311 and the second through groove 321 in the first direction are both smaller than the radius of the metal wire 4 in the first direction.

[0071] It should be noted that the dimensions of the first through groove 311 and the second through groove 321 in the first direction are specifically: the vertical distance between the opening position and the groove wall of the first through groove 311 and the second through groove 321 in the first direction x.

[0072] In specific implementation, by setting the dimensions of the first through groove 311 and the second through groove 321 in the first direction to be smaller than the radius of the metal wire 4, when the metal wire 4 is placed in the through hole 33 formed by the two through grooves, the metal wire 4 fits more closely to the groove wall. This not only enhances the clamping effect on the metal wire 4 and improves the connection strength between the metal wire 4 and the third electrode 3, but also helps maintain good contact between the metal wire 4 and the third electrode 3, reducing contact resistance. During the iodination purification process, the current can pass through the metal wire 4 and the electrode more efficiently, reducing energy loss.

[0073] During implementation, due to the smaller size of the two through slots, the metal wire 4 fits tightly with the walls of the two through slots. Even if the material expands or contracts due to temperature changes during use, the metal wire 4 can be tightly fixed to the first through slot 311 and the second through slot 321, thereby increasing the fault tolerance of the connection device and making it more suitable for use in environments with high requirements for stability and reliability, such as iodine purification.

[0074] In some embodiments, see Figure 1 and Figure 2 The sum of the dimensions of the first through groove 311 and the second through groove 321 in the first direction is 1.5 mm to 10 mm.

[0075] It should be noted that, see Figure 2 , Figure 2 In the first through slot 311, R represents the dimension of the first through slot 311 in the first direction. The dimension of the second through slot 321 is represented in the same way as that of the first through slot 311.

[0076] In one case, the first through groove 311 and the second through groove 321 have the same dimensions in the first direction x, specifically: the dimensions of the first through groove 311 in the first direction are 0.75 mm, 1.5 mm, 2 mm, 2.5 mm, 3 mm, 3.5 mm, 4 mm, 4.5 mm, and 5 mm.

[0077] In the second case, the size of the first through groove 311 in the first direction x is greater than the size of the second through groove 321 in the first direction x, and the difference between the sizes of the two through grooves is ≤5 mm;

[0078] In the third case, the size of the second through groove 321 in the first direction x is greater than the size of the first through groove 311 in the first direction x, and the difference in size between the two through grooves is ≤5 mm.

[0079] In practical implementation, by limiting the sum of the dimensions of the first through groove 311 and the second through groove 321 in the first direction, the first through groove 311 and the second through groove 321 are neither too narrow, making it difficult to clamp the metal wire 4, nor too wide, resulting in insufficient clamping force. Within the limited dimensional range, the metal wire 4 can be subjected to a moderate clamping force, which ensures the stability of the connection and avoids material damage caused by excessive clamping force.

[0080] In some embodiments, see Figure 1 and Figure 3 The connecting groove 21 includes a first groove 211 and a second groove 212 that are interconnected.

[0081] The first groove 211 is located close to the first electrode 1, and the groove opening size of the first groove 211 is larger than the groove opening size of the second groove 212;

[0082] The first part 31 and the second part 32 of the third electrode 3 each include a first connecting part 34 located in the first groove 211 and a second connecting part 35 located in the second groove 212;

[0083] The dimension of the first connecting part 34 in the slot direction is greater than the dimension of the second connecting part 35 in the slot direction.

[0084] It should be noted that the first groove 211 is adapted to the shape of the first connecting part 34, and the groove wall of the first groove 211 is in close contact with the outer wall of the first connecting part 34.

[0085] The shape of the second groove 212 is adapted to the shape of the second connecting part 35, and the groove wall of the second groove 212 is in close contact with the outer wall of the second connecting part 35.

[0086] The difference between the opening size of the first groove 211 and the opening size of the second groove 212 is the same as the difference between the width of the first connecting part 34 and the width of the second connecting part 35 in the first direction x.

[0087] The cross-sections of the first connecting part 34 and the second connecting part 35 in the second direction y are T-shaped.

[0088] In specific implementation, the first connecting part 34 and the second connecting part 35 are fed downward into the first groove 211 along the second direction, so that the second connecting part 35 passes through the first groove 211 and reaches the second groove 212, until the bottom wall of the first connecting part 34 abuts against the bottom wall of the first groove 211 to restrict the first connecting part 34 from sliding out downward. The second connecting part 35 is fed into the second groove 212, and the side wall of the second connecting part 35 abuts tightly against the groove wall of the second groove 212.

[0089] By setting the first groove 211 and the second groove 212 to be interconnected, and the groove size of the first groove 211 is larger than the groove size of the second groove 212, and combined with the fact that the size of the first connecting part 34 is larger than the size of the second connecting part 35, the first connecting part 34 is locked in the first groove 211, restricting the first connecting part 34 from sliding downward in the second direction y, thereby further enhancing the stability of the connection between the third electrode 3 and the second electrode 2 and reducing the risk of the third electrode 3 becoming loose or falling off due to vibration or temperature changes.

[0090] In some embodiments, see Figure 1 and Figure 4 The dimensions of the second connecting portion 35 in the first direction gradually decrease along the direction away from the first electrode 1.

[0091] It should be noted that the first connecting part 34 in the first groove 211 and the second connecting part 35 located in the second groove 212 are integrally formed;

[0092] The cross-sectional shape of the first connecting part 34 can be rectangular, circular, elliptical, etc.;

[0093] The cross-section of the second connecting part 35 can be trapezoidal, triangular, etc.;

[0094] In specific implementation, the wider end of the second connecting portion 35 in the first direction x is located above the second groove 212, and the narrower end is located below the second groove 212. When the metal wire 4 extends out of the third electrode 3 and deposits the target metal, its weight gradually increases, causing the second connecting portion 35 to tend to slide downwards due to gravity. However, since the wider end of the second connecting portion 35 is located above, and the shape of the second groove 212 is adapted to the second connecting portion 35, the downward sliding of the second connecting portion 35 can be restricted, preventing the third electrode 3 and the metal wire 4 from detaching from the second electrode 2, and further increasing the stability of the connection.

[0095] When the second connecting part 35 tends to slide downward, the wider end of the second connecting part 35 moves toward the narrower side of the second groove 212, so that the groove wall on the narrower side of the second groove 212 exerts an inward squeezing force on the second connecting part 35 in the first direction. That is, under the constraint of the tapered part of the second connecting part 35, the two second connecting parts 35 continuously shrink, making the metal wire 4 more and more tightly squeezed, thereby enhancing the clamping effect on the metal wire 4 and achieving a firm clamping of the metal wire 4.

[0096] In some embodiments, the second connection portion 35 includes a portion extending toward the third electrode 3 in a direction away from the first electrode 1.

[0097] It should be noted that the extended portion of the second connecting part 35 is specifically manifested as: the end of the second connecting part 35 away from the first connecting part 34 extends downward along the second direction y into the second groove 212;

[0098] The length of the end of the second connecting part 35 extending out of the second groove 212 in the second direction y is 40 mm to 50 mm.

[0099] In specific implementation, by setting a protruding part of the second connecting part 35, the second connecting part 35 can better clamp the part of the metal wire 4 that protrudes from the second electrode 2, thereby improving the stability of the connection.

[0100] In some embodiments, see Figure 1 The metal wire 4 includes a first wire 41 and a second wire 42;

[0101] The first female wire 41 is located between the first electrode 1 and the third electrode 3;

[0102] One end of the second female wire 42 is perpendicularly connected to one end of the first female wire 41, and the other end extends out of the third electrode 3 along the second direction.

[0103] It should be noted that the first female wire 41 and the second female wire 42 have the same shape and the same dimensions in the first direction x.

[0104] The first female wire 41 and the second female wire 42 can be integrally formed;

[0105] A gap is formed between the first electrode 1 and the third electrode 3. This gap is located between the connection point of the second female wire 42 and the first female wire 41 and the wall of the first groove 211.

[0106] In specific implementation, the second female wire 42 is placed between the first part 31 and the second part 32, and the first part 31 and the second part 32 are used to clamp the second female wire 42 along a first direction. The lower end of the second female wire 42 extends downward from the first part 31 and the second part 32, so that the side wall of the first female wire 41 abuts against the top wall of the first part 31 or the second part 32. When the target metal is deposited on the side of the second female wire 42 that extends out, the second female wire 42 tends to slide downward under the force of gravity, so that the side wall of the first female wire 41 is further pressed against the top wall of the first part 31 or the second part 32, thereby limiting the downward sliding of the second female wire 42 and further enhancing the firmness of the metal female wire 4 connection.

[0107] In some embodiments, see Figure 1 The angle between the outer wall of the second connecting part 35 and the metal wire 4 is 15°~85°.

[0108] It should be noted that the angle between the outer wall of the second connecting part 35 and the second female wire 42 in the second direction y is 15°~85°.

[0109] In specific implementation, when the included angle is within the range of 15° to 85°, the second connecting part 35 under the extrusion force can generate an effective clamping force on the metal mother wire 4, so that the metal mother wire 4 will not loosen or fall off due to vibration or temperature changes during the iodination purification process, thereby improving the stability and reliability of the connection.

[0110] In practice, the angle between the outer wall of the second connecting part 35 and the metal wire 4 can be any angle value between 15° and 85°.

[0111] In some embodiments, see Figure 1 and Figure 4 One end of the first electrode 1 is embedded in the connecting groove 21 and is threadedly connected to the second electrode 2.

[0112] It should be noted that the first groove 211 in the connecting groove 21 has a thread on its groove wall, and the side wall of the first electrode 1 extending into the connecting groove 21 has a threaded groove that matches the thread.

[0113] The dimension of the threaded groove on the side wall of the first electrode 1 in the second direction y is greater than the dimension of the thread provided on the wall of the first groove 211 in the second direction y;

[0114] When the first electrode 1 and the second electrode 2 are threaded together, the gap between the lower end face of the first electrode 1 and the top wall of the third electrode 3 gradually decreases.

[0115] In specific implementation, the first electrode 1 is moved downward along the second direction, so that one end of the first electrode 1 extends into the connecting groove 21, and the first electrode 1 is rotated along the target direction (the target direction can be clockwise or counterclockwise) to achieve a threaded connection until the lower end face of the first electrode 1 abuts against the side wall of the first female wire 41, and then the rotation stops. On the one hand, it is easier to connect the first electrode 1 and the second electrode 2; on the other hand, the threaded connection can slow down the speed at which the first electrode 1 enters the connecting groove 21, avoiding excessively fast insertion that could cause a violent collision between the first electrode 1 and the metal female wire 4, thus protecting the first electrode 1 and the metal female wire 4 from damage; finally, during the assembly process, as the connecting threads between the first electrode 1 and the second electrode 2 are continuously tightened, the gap between the lower end face of the first electrode 1 and the upper end face of the third electrode 3 is continuously compressed, thereby continuously squeezing the first female wire 41 tightly, further ensuring a firm and tight connection, and preventing the metal female wire 4 from falling out of the through hole 33 formed in the middle of the third electrode 3.

[0116] In some embodiments, see Figure 1 The distance between the end face of the first female wire 41 away from the second female wire 42 and the wall of the connecting groove 21 is 1 mm to 5 mm.

[0117] In specific implementation, by setting the distance between the end face of the first female wire 41 away from the second female wire 42 and the wall of the connecting groove 21, the end face of the first female wire 41 is prevented from abutting against the wall of the connecting groove 21. When the first electrode 1 and the second electrode 2 are threaded together, the first female wire 41 is kept stable and will not rotate with the first electrode 1, reducing damage to the metal female wire 4.

[0118] In specific implementation, the distance between the end face of the first female wire 41 away from the second female wire 42 and the wall of the connecting groove 21 can be 1 mm, 1.5 mm, 2 mm, 2.5 mm, 3 mm, 3.5 mm, 4 mm, 4.5 mm, or 5 mm.

[0119] The following detailed description of a connection device for a metal iodide purification electrode wire provided in this application is provided through specific embodiments.

[0120] Example 1

[0121] See Figures 1-4 The first electrode 1, the second electrode 2, and the third electrode 3 are all made of pure metallic Mo with a purity ≥ 99.9%; the metal wire 4 is pure metallic vanadium with a purity greater than 99.5%, with a diameter of approximately 3 mm, and the length of the first wire 41 along the first direction is approximately 1 cm. The connection steps specifically include:

[0122] 1. Place the first part 31 with the first through groove 311 on one side and the second part 32 with the second through groove 321 on one side opposite each other in the first direction. Then place the second female wire 42 between the first part 31 and the second part 32. Move the first part 31 and the second part 32 toward each other in the first direction to form a through hole 33. The circumferential sidewall of the second female wire 42 abuts against the groove wall of the first through groove 311 and the second through groove 321, and the sidewall of the first female wire 42 abuts against the top wall of the second part 32.

[0123] 2. The first part 31 and the second part 32 are fed downward into the first groove 211 along the second direction. The first part 31 and the second part 32 are pressed down to drive the first female wire 41 and the second female wire 42 to move downward, so that the two second connecting parts 35 pass through the first groove 211 and reach the second groove 212. After continuing to move downward, the outer wall of the upper half of the second connecting part 35 is pressed against the groove wall of the second groove 212, and the lower half extends downward into the second groove 212 along the second direction. The bottom wall of the first connecting part 34 is pressed against the bottom wall of the first groove 211, and the outer wall is pressed against the groove wall of the first groove 211, so as to generate an inward squeezing force along the first direction. The first connecting part 34 and the second connecting part 35 clamp the upper half of the second female wire 42, and the lower half of the second female wire 42 extends out of the second connecting part 35 along the through hole 33.

[0124] 3. Move the first electrode 1 downward along the second direction so that the lower end of the first electrode 1 extends into the first groove 211. Then rotate the first electrode 1 along the target direction (the target direction is clockwise or counterclockwise) so that the first electrode 1 and the second electrode 2 are threadedly connected until the bottom wall of the first electrode 1 is tightly abutted against the side wall of the first female wire 41. Stop rotating to complete the connection.

[0125] 4. After all the above components are connected, check the firmness of the metal mother wire 4 connection, and further tighten the threads to ensure the firmness and tightness of the connection between the lower end conical surface of the second connecting part 35 (i.e. the side with smaller width in the first direction) and the conical surface inside the second groove 212 (i.e. the side with smaller groove diameter in the first direction), as well as the metal mother wire 4.

[0126] 5. After the iodization purification is completed, first rotate the first electrode 1 in the opposite direction to the target direction so that one end of the first electrode 1 is rotated out of the first groove 211 and the groove opening of the first groove 211 is exposed. Then push the first part 31 and the second part 32 upward in the second direction to the connecting groove 21, so that the third electrode 3 is separated from the second electrode 2. Then move the first part 31 and the second part 32 in the first direction to a position away from each other, so that the metal mother wire 4 and the metal crystal rod are separated from the third electrode 3, thus achieving disassembly.

[0127] The metal crystal rod includes a target metal deposited or grown on the side of the second mother wire 42 extending from the second connection portion 35 during the iodination purification process. The target metal and the second mother wire 42 form a metal crystal rod. The target metal and the metal mother wire 4 are made of the same material, namely vanadium.

[0128] In summary, the metal iodide purification electrode wire connection device provided in this application embodiment has a simpler structure, lower manufacturing cost, is reusable, is easier to load and disassemble, has a lower fault tolerance rate, greatly improves production efficiency, and reduces production costs.

[0129] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0130] Although preferred embodiments of the present application have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the embodiments of the present application.

[0131] Finally, it should be noted that in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or terminal device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or terminal device. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or terminal device that includes said element.

[0132] The foregoing has provided a detailed description of the metal iodide purification electrode wire connection device provided in this application. Specific examples have been used to illustrate the principle and implementation of this application. The description of the above embodiments is only for the purpose of helping to understand the method and core idea of ​​this application. At the same time, for those skilled in the art, there will be changes in the specific implementation and application scope based on the idea of ​​this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. A connection device for a metal iodide purification electrode wire, characterized in that, The connecting device includes: a first electrode (1), a second electrode (2), a third electrode (3), and a metal mother wire (4); The first electrode (1) is connected to the second electrode (2); The second electrode (2) includes a connecting groove (21); The third electrode (3) is embedded in the connecting groove (21). The third electrode (3) includes a first part (31) and a second part (32) disposed opposite to each other in a first direction in the connecting groove (21). A first through groove (311) is formed on the surface of the first part (31) opposite to the second part (32), and a second through groove (321) is formed on the surface of the second part (32) opposite to the first part (31). The first through groove (311) and the second through groove (321) extend along a second direction orthogonal to the first direction. The metal wire (4) is embedded in the through hole (33) formed by the first through groove (311) and the second through groove (321), and abuts against the groove wall of the first through groove (311) and the groove wall of the second through groove (321).

2. The connection device for the metal iodide purification electrode wire according to claim 1, characterized in that, The dimensions of the first through groove (311) and the second through groove (321) in the first direction are both smaller than the radius of the metal wire (4) in the first direction.

3. The connection device for the metal iodide purification electrode wire according to claim 1, characterized in that, The sum of the dimensions of the first through groove (311) and the second through groove (321) in the first direction is 1.5 mm to 10 mm.

4. The connection device for the metal iodide purification electrode wire according to claim 1, characterized in that, The connecting groove (21) includes a first groove (211) and a second groove (212) that are interconnected. The first groove (211) is located close to the first electrode (1), and the groove opening size of the first groove (211) is larger than the groove opening size of the second groove (212); The first part (31) and the second part (32) of the third electrode (3) each include a first connecting part (34) located in the first groove (211) and a second connecting part (35) located in the second groove (212). The dimension of the first connecting part (34) in the slot direction is greater than the dimension of the second connecting part (35) in the slot direction.

5. The connection device for the metal iodide purification electrode wire according to claim 4, characterized in that, The dimensions of the second connecting portion (35) in the first direction gradually decrease in the direction away from the first electrode (1).

6. The connecting device for the metal iodide purification electrode wire according to claim 4, characterized in that, The second connection portion (35) includes a portion that extends toward the third electrode (3) in a direction away from the first electrode (1).

7. The connection device for the metal iodide purification electrode wire according to claim 1, characterized in that, The metal mother wire (4) includes a first mother wire (41) and a second mother wire (42); The first female wire (41) is located between the first electrode (1) and the third electrode (3); One end of the second female wire (42) is perpendicularly connected to one end of the first female wire (41), and the other end extends out of the third electrode (3) along the second direction.

8. The connecting device for the metal iodide purification electrode wire according to claim 4, characterized in that, The angle between the outer wall of the second connecting part (35) and the metal mother wire (4) is 15°~85°.

9. The connection device for the metal iodide purification electrode wire according to claim 1, characterized in that, One end of the first electrode (1) is embedded in the connecting groove (21) and is threadedly connected to the second electrode (2).

10. The connecting device for the metal iodide purification electrode wire according to claim 7, characterized in that, The distance between the end face of the first female wire (41) away from the second female wire (42) and the wall of the connecting groove (21) is 1 mm to 5 mm.

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