Middle thirteen-mold heating furnace body and mold three-area temperature control device

Abstract

The utility model discloses a medium thirteen-mould heating furnace body and a mould three-area temperature control device, the medium thirteen-mould heating furnace body comprises a first furnace body and a second furnace body arranged beside the first furnace body, a tungsten filament sequentially penetrates through the first furnace body and the second furnace body, a heating plate is arranged in the first furnace body, and the first furnace body is connected with the second furnace body. A first furnace body temperature control area, a second furnace body temperature control area and a third furnace body temperature control area are sequentially arranged on the heating plate, a first thermocouple, a second thermocouple and a third thermocouple are arranged in the first furnace body temperature control area, the second furnace body temperature control area and the third furnace body temperature control area respectively, a mold support core body is arranged in the second furnace body, a plurality of adjustable polycrystalline molds are installed on the mold support core body, and the mold support core body is sequentially divided into a first mold temperature control area, a second mold temperature control area and a third mold temperature control area. And a fourth thermocouple, a fifth thermocouple and a sixth thermocouple are respectively arranged in the mold temperature control first area, the mold temperature control second area and the mold temperature control third area. By means of partition heating and partition temperature control and matching with a plurality of thermocouples, accurate control of tungsten filament heating is achieved so as to cope with diameter differences of tungsten filaments, meanwhile, it is guaranteed that the temperature of a furnace body is even and accurate, the tungsten filament drawing temperature stability is improved, and it is guaranteed that mechanical properties are consistent.

Description

Technical Field

[0001] The utility model relates to the technical field of tungsten wire processing equipment, in particular to a heating furnace body with thirteen middle molds and a temperature control device for three zones of a mold. Background Technique

[0002] With the rapid development of material science and processing technology, the market demand for high-performance materials such as tungsten wire shows a trend of diversification and refinement, which poses a severe challenge to the traditional heating mode, especially in the context of pursuing high-precision and high-efficiency production. Particularly in high-end application fields such as aerospace and electronic packaging, more stringent standards are put forward for the quality stability of tungsten wire materials.

[0003] In the field of metal processing, for the fine processing of high-performance materials such as tungsten wire, the temperature control accuracy and uniformity of the heating furnace body become the key factors determining the final quality and performance of the product. However, traditional heating systems generally use S-shaped heating resistance wires for unified heating and rely on a single thermocouple for temperature monitoring. This design has significant limitations when facing the diameter differences of tungsten wires in the furnace body and cannot implement differential temperature control according to different wire diameters, resulting in uneven temperature distribution in each area during the heating process, thereby affecting the heating uniformity of tungsten wire and the mechanical properties during the subsequent drawing process, such as the instability of tensile strength, and it is difficult to meet the requirements of high-end application fields. Content of the Utility Model

[0004] In view of this, aiming at the deficiencies existing in the prior art, the main purpose of the utility model is to provide a heating furnace body with thirteen middle molds and a temperature control device for three zones of a mold, which solves the technical problem that the traditional heating system is difficult to implement differential temperature control according to the diameter differences of tungsten wires, resulting in uneven temperature distribution in the furnace body and affecting the heating uniformity of tungsten wire and the stability of mechanical properties.

[0005] To achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A middle thirteen-mode heating furnace body of the present utility model includes a first furnace body and a second furnace body. The second furnace body is arranged beside the first furnace body. The tungsten wire sequentially passes through the first furnace body and the second furnace body. A heating plate is arranged in the first furnace body. The heating plate is successively provided with a furnace body temperature control zone one, a furnace body temperature control zone two, and a furnace body temperature control zone three. The furnace body temperature control zone one, the furnace body temperature control zone two, and the furnace body temperature control zone three are respectively provided with a first thermocouple, a second thermocouple, and a third thermocouple. The first thermocouple, the second thermocouple, and the third thermocouple are all installed through the first furnace body. A mold support core body is arranged in the second furnace body. A plurality of adjustable polycrystalline molds are installed on the mold support core body. The polycrystalline molds are used to clamp the tungsten wire. The plurality of polycrystalline molds are arranged at intervals in parallel. The mold support core body is successively divided into a mold temperature control zone one, a mold temperature control zone two, and a mold temperature control zone three according to the furnace body temperature control zone one, the furnace body temperature control zone two, and the furnace body temperature control zone three. The mold temperature control zone one, the mold temperature control zone two, and the mold temperature control zone three are respectively provided with a fourth thermocouple, a fifth thermocouple, and a sixth thermocouple. The fourth thermocouple, the fifth thermocouple, and the sixth thermocouple are all installed through the second furnace body.

[0007] As a preferred solution, the first thermocouple, the second thermocouple, and the third thermocouple are respectively used to monitor the temperatures of the furnace body temperature control zone one, the furnace body temperature control zone two, and the furnace body temperature control zone three. The fourth thermocouple, the fifth thermocouple, and the sixth thermocouple are respectively used to monitor the temperatures of the mold temperature control zone one, the mold temperature control zone two, and the mold temperature control zone three. The tungsten wire includes a first wire group, a second wire group, and a third wire group. The first wire group sequentially passes through the furnace body temperature control zone one and the mold temperature control zone one. The second wire group sequentially passes through the furnace body temperature control zone two and the mold temperature control zone two. The third wire group sequentially passes through the furnace body temperature control zone three and the mold temperature control zone three.

[0008] As a preferred solution, the first furnace body includes an upper furnace chamber and a lower furnace chamber. A first installation cavity is opened in the lower furnace chamber. The heating plate is installed on the first installation cavity. The heating plate is provided with a first partition rib and a second partition rib arranged in parallel. The first partition rib separates the furnace body temperature control zone one from the furnace body temperature control zone two. The second partition rib separates the furnace body temperature control zone two from the furnace body temperature control zone three. The upper furnace chamber is arranged above the lower furnace chamber. A sliding device is also arranged beside the lower furnace chamber. The upper furnace chamber is slidably installed on the sliding device. First avoidance notches corresponding to the tungsten wire are opened on opposite sides of the lower furnace chamber.

[0009] As a preferred solution, the sliding device includes a guiding platform and a linear guide rail installed on the guiding platform. A slider is slidably installed on the linear guide rail. One side of the upper furnace chamber is fixedly connected to the slider through a connecting and fixing member. A first operating handle is further provided on the side of the upper furnace chamber away from the lower furnace chamber.

[0010] As a preferred solution, limiting blocks are further installed at both ends of the guiding platform along the length direction of the linear guide rail. The limiting blocks are used to limit the sliding stroke of the upper furnace chamber on the linear guide rail.

[0011] As a preferred solution, the second furnace body includes a furnace body support. A mold supporting frame is installed on the furnace body support. A second installation cavity is formed on the mold supporting frame. The mold supporting core is installed on the second installation cavity. An installation groove corresponding to the polycrystalline mold is formed at one end of the mold supporting core away from the furnace body support. The polycrystalline mold is adjustably installed on the installation groove. The fourth thermocouple, the fifth thermocouple and the sixth thermocouple are all arranged on the side of the second furnace body away from the first furnace body and are located below the installation groove. The fourth thermocouple, the fifth thermocouple and the sixth thermocouple all pass through the mold supporting frame and are installed on the mold supporting core. An avoidance groove corresponding to the tungsten wire is further formed on the mold supporting core. One side of the avoidance groove directly penetrates to the outside of the mold supporting core. The other side of the avoidance groove passes through the installation groove and communicates with the outside of the mold supporting core. A second avoidance notch corresponding to the avoidance groove is further formed on the mold supporting frame.

[0012] As a preferred solution, a graphite ash box is further installed at one end of the furnace body support away from the mold supporting frame. The graphite ash box is used to collect the graphite ash generated by the drawing of the tungsten wire. A ash leakage through hole corresponding to the tungsten wire is further formed on the mold supporting core. The ash leakage through hole is arranged on one side of the installation groove and communicates with the installation groove. The ash leakage through hole sequentially penetrates through the mold supporting core, the mold supporting frame and the furnace body support.

[0013] As a preferred solution, a plugging groove is formed on the furnace body support. Plugging strips are convexly provided on both sides of one end of the graphite ash box close to the furnace body support. The graphite ash box is detachably installed on the furnace body support through the plugging strips. A second operating handle is further provided on one side of the graphite ash box.

[0014] As a preferred solution, the second furnace body further includes an upper furnace cover. The upper furnace cover is arranged above the mold supporting core. One side of the upper furnace cover is rotationally connected to the mold supporting frame through a rotational connection member. A third operating handle is further provided on the upper furnace cover.

[0015] A mold three-zone temperature control device includes the middle thirteen-mold heating furnace body described in any one of the foregoing.

[0016] Compared with the prior art, the utility model has obvious advantages and beneficial effects. Specifically, as can be seen from the above technical solution, it mainly realizes precise temperature control of different regions during the heating process of the tungsten wire by setting a heating plate in the first furnace body and dividing independent furnace body temperature control zones I, II, and III, in cooperation with the corresponding first, second, and third thermocouples, so as to effectively cope with the change in heating requirements caused by the difference in the diameter of the tungsten wire, ensure the uniformity and accuracy of the temperature distribution in the first furnace body, overcome the limitation of uneven temperature control of the traditional heating system. At the same time, a mold support core and an adjustable polycrystalline mold are arranged in the second furnace body, which not only optimizes the heat transfer and distribution, but also realizes real-time monitoring and precise regulation of the mold temperature during the wire drawing process of the tungsten wire through the division of mold temperature control zones I, II, and III and the corresponding fourth, fifth, and sixth thermocouples, further improving the temperature stability and uniformity of the tungsten wire during the wire drawing process, and ensuring the stability and consistency of the mechanical properties of the tungsten wire.

[0017] To more clearly elaborate on the structural features and functions of the present utility model, the present utility model will be described in detail below with reference to the accompanying drawings and specific embodiments. Description of the Drawings

[0018] Figure 1 It is a schematic assembly structure diagram of a thirteen-mold heating furnace body in an embodiment of the present application;

[0019] Figure 2 It is a partial structure diagram of a thirteen-mold heating furnace body in an embodiment of the present application;

[0020] Figure 3 It is an enlarged view of part Figure 2 A in an embodiment of the present application;

[0021] Figure 4 It is an enlarged view of part Figure 2 B in an embodiment of the present application.

[0022] Description of the Reference Numerals in the Drawings:

[0023] 10. First furnace body; 11. Heating plate; 111. Furnace body temperature control zone I; 112. Furnace body temperature control zone II; 113. Furnace body temperature control zone III; 114. First thermocouple; 115. Second thermocouple; 116. Third thermocouple; 12. First partition rib; 13. Second partition rib; 14. Lower furnace chamber; 141. First installation cavity; 142. First avoidance notch; 15. Upper furnace chamber; 151. First operation handle;

[0024] 20. Second furnace body; 21. Mold carrier core; 211. First mold temperature control zone; 212. Second mold temperature control zone; 213. Third mold temperature control zone; 214. Fourth thermocouple; 215. Fifth thermocouple; 216. Sixth thermocouple; 217. Installation groove; 218. Avoidance groove; 219. Ash leakage through hole; 22. Polycrystalline mold; 23. Furnace body support; 231. Insertion slot; 24. Mold carrier frame; 241. Second installation cavity; 242. Second avoidance notch; 25. Graphite ash box; 251. Insertion strip; 252. Second operation handle; 26. Upper furnace cover; 261. Third operation handle;

[0025] 30. Sliding device; 31. Guide sliding platform; 311. Limit block; 32. Linear guide rail; 33. Guide slider;

[0026] 40. Rotating connection member;

[0027] 50. Tungsten wire. Detailed implementation manners

[0028] In order to make the objectives, technical solutions and advantages of the present utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and implementation examples. It should be understood that the specific implementation examples described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0029] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may also be a middle element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be a middle element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are only for the purpose of illustration.

[0030] With the leap of materials science and processing technology, the market demand for high-performance materials such as tungsten wire tends to be diverse and refined, putting forward higher requirements for heating technology. Especially in cutting-edge fields such as aerospace and electronic packaging, the quality stability standards are unprecedentedly strict. In fine processing, the temperature control accuracy and uniformity of the heating furnace body are directly related to the final quality of tungsten wire products. The traditional heating mode of S-shaped heating resistance wire with a single thermocouple is difficult to achieve differential temperature control when there are differences in the diameter of tungsten wire, resulting in uneven temperature distribution in the furnace, affecting the uniform heating of tungsten wire and subsequent mechanical properties, and it is difficult to meet the high-end application standards.

[0031] To solve the above problems, please refer to Figures 1 to 4, an embodiment of the present utility model provides a medium thirteen-mode heating furnace body and a die three-zone temperature control device, which includes a first furnace body 10 and a second furnace body 20. The second furnace body 20 is arranged beside the first furnace body 10. A tungsten wire 50 passes through the first furnace body 10 and the second furnace body 20 in sequence. The first furnace body 10 and the second furnace body 20 work together to form a continuous tungsten wire 50 heating and drawing channel, ensuring the coherence of the tungsten wire 50 heating and drawing process. A heating plate 11 is arranged in the first furnace body 10. On the heating plate 11, there are successively a furnace body temperature control zone one 111, a furnace body temperature control zone two 112 and a furnace body temperature control zone three 113. Each zone is independently temperature-controlled to effectively meet the temperature requirements of tungsten wires 50 with different diameters at different heating stages. The furnace body temperature control zone one 111, the furnace body temperature control zone two 112 and the furnace body temperature control zone three 113 are respectively provided with a first thermocouple 114, a second thermocouple 115 and a third thermocouple 116. The first thermocouple 114, the second thermocouple 115 and the third thermocouple 116 are all installed through the first furnace body 10, monitoring and feedbacking the temperature of each zone in real time to ensure the accuracy and immediacy of temperature control. A die support core 21 is arranged in the second furnace body 20. A plurality of adjustable polycrystalline dies 22 are installed on the die support core 21. The polycrystalline dies 22 are used to clamp the tungsten wire 50. The plurality of polycrystalline dies 22 are arranged at intervals in parallel, optimizing heat transfer and distribution. The die support core 21 is successively divided into a die temperature control zone one 211, a die temperature control zone two 212 and a die temperature control zone three 213 according to the furnace body temperature control zone one 111, the furnace body temperature control zone two 112 and the furnace body temperature control zone three 113, realizing close cooperation with the temperature control zones of the heating plate 11. The die temperature control zone one 211, the die temperature control zone two 112 and the die temperature control zone three 213 are respectively provided with a fourth thermocouple 214, a fifth thermocouple 215 and a sixth thermocouple 216. The fourth thermocouple 214, the fifth thermocouple 215 and the sixth thermocouple 216 are all installed through the second furnace body 20, monitoring the die temperature of the second furnace body 20 in real time to ensure the temperature stability and uniformity of the tungsten wire 50 during the drawing process, thereby optimizing the mechanical properties of the tungsten wire 50, such as the improvement of tensile strength and the enhancement of stability, meeting the high-standard requirements for the tungsten wire 50 material in high-end application fields.

[0032] In this embodiment, the first thermocouple 114, the second thermocouple 115 and the third thermocouple 116 are respectively used to monitor the temperatures of the furnace body temperature control zone one 111, the furnace body temperature control zone two 112 and the furnace body temperature control zone three 113, effectively avoiding the adverse effects caused by temperature fluctuations on the process, promoting uniform heat distribution, optimizing the overall heating effect, and ensuring production continuity and stability. The fourth thermocouple 214, the fifth thermocouple 215 and the sixth thermocouple 216 are respectively used to monitor the temperatures of the die temperature control zone one 211, the die temperature control zone two 112 and the die temperature control zone three 213, helping to quickly respond to temperature changes, maintaining the constancy and consistency of the temperature of the polycrystalline die 22, effectively preventing processing errors caused by local overheating or overcooling, and further improving product quality and production efficiency.

[0033] Specifically, the tungsten wire 50 includes a first wire group, a second wire group, and a third wire group. The first wire group sequentially passes through the first furnace body temperature control zone 111 and the first mold temperature control zone 211. The second wire group sequentially passes through the second furnace body temperature control zone 112 and the second mold temperature control zone 212. The third wire group sequentially passes through the third furnace body temperature control zone 113 and the third mold temperature control zone 213. Among them, the wire diameters of the first wire group, the second wire group, and the third wire group are all different.

[0034] The first furnace body 10, as the core part of the heating system, includes an upper furnace chamber 15 and a lower furnace chamber 14. A first installation cavity 141 is opened in the lower furnace chamber 14. The heating plate 11 is installed on the first installation cavity 141 to ensure the stable installation of the heating element, improve the heating efficiency and uniformity. The heating plate 11 is provided with a first partition rib 12 and a second partition rib 13 arranged in parallel. The first partition rib 12 separates the first furnace body temperature control zone 111 from the second furnace body temperature control zone 112. The second partition rib 13 separates the second furnace body temperature control zone 112 from the third furnace body temperature control zone 113. By optimizing the heat transfer conduction path, the temperature isolation effect between intervals is enhanced, and more precise temperature zone control is achieved. The upper furnace chamber 15 is arranged above the lower furnace chamber 14, and the upper furnace chamber 15 plays a role in heat insulation and heat preservation. A sliding device 30 is also provided beside the lower furnace chamber 14. The upper furnace chamber 15 is slidably installed on the sliding device 30, endowing the upper furnace chamber 15 with the function of flexible sliding, facilitating the opening and closing adjustment of the upper furnace chamber 15 and the lower furnace chamber 14, facilitating the threading of the tungsten wire 50, and improving the flexibility of production. First avoidance notches 142 corresponding to the tungsten wire 50 are opened on the opposite sides of the lower furnace chamber 14 to ensure the straightness of the tungsten wire 50 during threading, ensure the normal progress of the tungsten wire 50 drawing process, and avoid interference with the equipment.

[0035] Furthermore, the sliding device 30, as the key component to realize the flexible adjustment of the upper furnace chamber 15, is composed of a guide sliding platform 31 and a linear guide rail 32 installed on the guide sliding platform 31. The guide sliding platform 31 provides a stable basic support for the entire sliding system, ensuring the smoothness during the sliding process. The linear guide rail 32 serves as the guiding core, making the sliding process smooth and unobstructed, effectively reducing friction and wear. A guide slider 33 is slidably installed on the linear guide rail 32. One side of the upper furnace chamber 15 is fixedly connected to the guide slider 33 through a connection fixing piece, ensuring that the upper furnace chamber 15 can slide precisely along the preset trajectory. A first operation handle 151 is also provided on the side of the upper furnace chamber 15 away from the lower furnace chamber 14. The user can easily operate the first operation handle 151 to achieve the quick opening and closing adjustment of the upper furnace chamber 15 and the lower furnace chamber 14, making the use of the first furnace body 10 more user-friendly.

[0036] Limit blocks 311 are also installed at both ends of the guide sliding platform 31 along the length direction of the linear guide rail 32. The limit blocks 311 are used to limit the sliding stroke of the upper furnace chamber 15 on the linear guide rail 32.

[0037] By precisely setting the position of the limit block 311, it is possible to effectively prevent the upper furnace chamber 15 from exceeding the preset range during the sliding process, avoiding structural damage or safety accidents caused by excessive movement, and ensuring the safety and stability of the operation of the first furnace body 10.

[0038] The second furnace body 20 includes a furnace body support 23. A mold support frame 24 is installed on the furnace body support 23. A second installation cavity 241 is formed on the mold support frame 24. A mold support core 21 is installed on the second installation cavity 241. An installation groove 217 corresponding to the polycrystalline mold 22 is formed at one end of the mold support core 21 away from the furnace body support 23. The polycrystalline mold 22 is adjustably installed on the installation groove 217. The adjustable installation compensates for the slight deformation of the structure under the influence of high temperature and ensures the processing quality of the product. The fourth thermocouple 214, the fifth thermocouple 215, and the sixth thermocouple 216 are all arranged on the side of the second furnace body 20 away from the first furnace body 10 and are located below the installation groove 217. The fourth thermocouple 214, the fifth thermocouple 215, and the sixth thermocouple 216 all pass through the mold support frame 24 and are installed on the mold support core 21, realizing real-time and accurate monitoring of the temperature in the mold temperature control area, providing reliable data support for the optimization of process parameters. A relief groove 218 corresponding to the tungsten wire 50 is also formed on the mold support core 21. One side of the relief groove 218 directly penetrates to the outside of the mold support core 21. The other side of the relief groove 218 passes through the installation groove 217 and communicates with the outside of the mold support core 21. A second relief notch 242 corresponding to the relief groove 218 is also formed on the mold support frame 24, ensuring the accurate threading of the tungsten wire 50, optimizing the spatial layout, and making the structure more compact.

[0039] One end of the furnace body support 23 away from the mold support frame 24 is also installed with a graphite ash box 25. The graphite ash box 25 is used to collect the graphite ash generated by the drawing of the tungsten wire 50, so as to reduce the pollution of the internal environment of the furnace body by the graphite ash, reduce the difficulty of subsequent cleaning and maintenance, and improve the overall operation efficiency and service life of the equipment. A ash leakage through hole 219 corresponding to the tungsten wire 50 is also formed on the mold support core 21, which is accurately corresponding to the position of the tungsten wire 50 to ensure that the graphite ash can be discharged smoothly. The ash leakage through hole 219 is arranged on one side of the installation groove 217 and communicates with the installation groove 217. The ash leakage through hole 219 sequentially penetrates the mold support core 21, the mold support frame 24, and the furnace body support 23, optimizing the flow path of the graphite ash, avoiding the accumulation and blockage of the graphite ash inside the mold support core 21, and enabling the graphite ash to be continuously and smoothly discharged into the graphite ash box 25, improving the collection efficiency and cleanliness.

[0040] Furthermore, a socket groove 231 is formed on the furnace body support 23. On both sides of one end of the graphite ash box 25 close to the furnace body support 23, insertion strips 251 are protruded. The graphite ash box 25 is detachably installed on the furnace body support 23 through the insertion strips 251. This design not only simplifies the installation process, but also facilitates the user to quickly replace and maintain according to actual needs, improving the overall flexibility and maintainability of the equipment.

[0041] On one side of the graphite ash box 25, a second operation handle 252 is further provided. This user-friendly design enables the user to easily hold and operate the second operation handle 252, further simplifying the disassembly and installation process of the graphite ash box 25. The user only needs to gently pull or push to complete the disassembly or installation of the graphite ash box 25, greatly improving the work efficiency and operation convenience.

[0042] The second furnace body 20 further includes an upper furnace cover 26. The upper furnace cover 26 is arranged above the mold support core 21 to form a closed and controllable temperature control space. One side of the upper furnace cover 26 is rotatably connected to the mold support frame 24 through a rotating connection member 40, which not only ensures the stability of the structural connection, but also makes the opening and closing operations of the upper furnace cover 26 flexible and simple. A third operation handle 261 is further provided on the upper furnace cover 26. The user only needs to easily hold and operate the third operation handle 261 to control the opening and closing of the upper furnace cover 26 without the need to rely on other tools or equipment, greatly improving the work efficiency and operation safety.

[0043] The embodiment of the present utility model further provides a mold three-zone temperature control device, including the aforementioned middle thirteen-mode heating furnace body.

[0044] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, and improvements made within the principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A medium thirteen-mode heating furnace body for the tungsten wire (50) drawing process, characterized in that: It includes a first furnace body (10) and a second furnace body (20). The second furnace body (20) is arranged beside the first furnace body (10). The tungsten wire (50) passes through the first furnace body (10) and the second furnace body (20) in sequence. A heating plate (11) is provided in the first furnace body (10). On the heating plate (11), there are a first furnace body temperature control zone (111), a second furnace body temperature control zone (112), and a third furnace body temperature control zone (113) arranged in sequence. The first furnace body temperature control zone (111), the second furnace body temperature control zone (112), and the third furnace body temperature control zone (113) are respectively provided with a first thermocouple (114), a second thermocouple (115), and a third thermocouple (116). The first thermocouple (114), the second thermocouple (115), and the third thermocouple (116) are all installed through the first furnace body (10). A mold support core body (21) is provided in the second furnace body (20). A plurality of adjustable polycrystalline molds (22) are installed on the mold support core body (21). The polycrystalline molds (22) are used to clamp the tungsten wire (50). The plurality of polycrystalline molds (22) are arranged at intervals and in parallel. The mold support core body (21) is sequentially divided into a mold temperature control zone one (211), a mold temperature control zone two (212), and a mold temperature control zone three (213) according to the first furnace body temperature control zone (111), the second furnace body temperature control zone (112), and the third furnace body temperature control zone (113). The mold temperature control zone one (211), the mold temperature control zone two (212), and the mold temperature control zone three (213) are respectively provided with a fourth thermocouple (214), a fifth thermocouple (215), and a sixth thermocouple (216). The fourth thermocouple (214), the fifth thermocouple (215), and the sixth thermocouple (216) are all installed through the second furnace body (20).

2. The medium thirteen-mode heating furnace body according to claim 1, characterized in that: The first thermocouple (114), the second thermocouple (115), and the third thermocouple (116) are respectively used to monitor the temperatures of the first furnace body temperature control zone (111), the second furnace body temperature control zone (112), and the third furnace body temperature control zone (113). The fourth thermocouple (214), the fifth thermocouple (215), and the sixth thermocouple (216) are respectively used to monitor the temperatures of the mold temperature control zone one (211), the mold temperature control zone two (212), and the mold temperature control zone three (213). The tungsten wire (50) includes a first wire group, a second wire group, and a third wire group. The first wire group passes through the first furnace body temperature control zone (111) and the mold temperature control zone one (211) in sequence. The second wire group passes through the second furnace body temperature control zone (112) and the mold temperature control zone two (212) in sequence. The third wire group passes through the third furnace body temperature control zone (113) and the mold temperature control zone three (213) in sequence.

3. A thirteen-mode heating furnace body according to claim 1, characterized in that: The first furnace body (10) includes an upper furnace chamber (15) and a lower furnace chamber (14). A first installation cavity (141) is formed in the lower furnace chamber (14). The heating plate (11) is installed on the first installation cavity (141). The first partition rib (12) and the second partition rib (13) which are arranged in parallel are installed on the heating plate (11). The first partition rib (12) separates the first temperature control area (111) of the furnace body from the second temperature control area (112) of the furnace body. The second partition rib (13) separates the second temperature control area (112) of the furnace body from the third temperature control area (113) of the furnace body. The upper furnace chamber (15) is arranged above the lower furnace chamber (14). A sliding device (30) is further provided beside the lower furnace chamber (14). The upper furnace chamber (15) is slidably installed on the sliding device (30). First avoidance notches (142) corresponding to the tungsten wire (50) are formed in opposite sides of the lower furnace chamber (14).

4. A medium thirteen-mode heating furnace body according to claim 3, characterized in that: The sliding device (30) includes a guide sliding platform (31) and a linear guide rail (32) installed on the guide sliding platform (31). A guide slider (33) is slidably installed on the linear guide rail (32). One side of the upper furnace chamber (15) is fixedly connected to the guide slider (33) through a connecting and fixing member. A first operation handle (151) is further provided on the side of the upper furnace chamber (15) away from the lower furnace chamber (14).

5. The medium thirteen-mode heating furnace body according to claim 4, characterized in that: Limit blocks (311) are further installed at two ends of the guide sliding platform (31) along the length direction of the linear guide rail (32). The limit blocks (311) are used for limiting the sliding stroke of the upper furnace chamber (15) on the linear guide rail (32).

6. The thirteen-mode heating furnace body according to claim 1, characterized in that: The second furnace body (20) includes a furnace body support (23). A mold support frame (24) is installed on the furnace body support (23). A second installation cavity (241) is formed in the mold support frame (24). The mold core (21) is installed in the second installation cavity (241). An installation groove (217) corresponding to the polycrystalline mold (22) is formed at one end of the mold core (21) away from the furnace body support (23). The polycrystalline mold (22) is adjustably installed in the installation groove (217). The fourth thermocouple (214), the fifth thermocouple (215), and the sixth thermocouple (216) are all arranged on the side of the second furnace body (20) away from the first furnace body (10) and are located below the installation groove (217). The fourth thermocouple (214), the fifth thermocouple (215), and the sixth thermocouple (216) all pass through the mold support frame (24) and are installed on the mold core (21). An avoidance groove (218) corresponding to the tungsten wire (50) is further formed in the mold core (21). One side of the avoidance groove (218) directly penetrates to the outside of the mold core (21). The other side of the avoidance groove (218) passes through the installation groove (217) and communicates with the outside of the mold core (21). A second avoidance notch (242) corresponding to the avoidance groove (218) is further formed in the mold support frame (24).

7. The medium thirteen-mode heating furnace body according to claim 6, characterized in that: A graphite ash box (25) is further installed at one end of the furnace body support (23) away from the mold support frame (24). The graphite ash box (25) is used for collecting the graphite ash generated by the drawing of the tungsten wire (50). A ash leakage through hole (219) corresponding to the tungsten wire (50) is further formed in the mold core (21). The ash leakage through hole (219) is arranged on one side of the installation groove (217) and communicates with the installation groove (217). The ash leakage through hole (219) sequentially penetrates through the mold core (21), the mold support frame (24), and the furnace body support (23).

8. A medium thirteen-mode heating furnace body according to claim 7, characterized in that: A plug-in slot (231) is formed in the furnace body support (23). Plug-in strips (251) protrude from both sides of one end of the graphite ash box (25) close to the furnace body support (23). The graphite ash box (25) is detachably installed on the furnace body support (23) through the plug-in strips (251). A second operation handle (252) is further arranged on one side of the graphite ash box (25).

9. The medium thirteen-module heating furnace body according to claim 6, characterized in that: The second furnace body (20) further includes an upper furnace cover (26). The upper furnace cover (26) is arranged above the mold core (21). One side of the upper furnace cover (26) is rotatably connected to the mold support frame (24) through a rotating connection member (40). A third operation handle (261) is further arranged on the upper furnace cover (26).

10. A three-zone temperature control device for a mold, characterized in that: Including the thirteen-mold heating furnace body according to any one of claims 1-9.

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