Experimental device for controlling phase change of solid alloy by strong electrostatic field

Abstract

The invention belongs to the field of alloy phase change, and provides a solid alloy phase change experimental device controlled by a strong electrostatic field, the solid alloy phase change experimental device comprises a direct current ultrahigh pressure generator and a vacuum resistance furnace, the outer ring of the vacuum resistance furnace is sleeved with a protective cover, and one side of the protective cover is provided with a vacuum pump; according to the method, migration of atoms in solid metal is accelerated, the efficiency and flexibility of material microstructure regulation and control are improved, the high-vacuum environment is utilized, sulfur hexafluoride is introduced to serve as an insulating medium, the phenomenon that a high-voltage electrode is prone to breakdown in the air is effectively avoided, meanwhile, the influence of the Joule heating effect is eliminated, and the service life of the electrode is prolonged. Precise phase change regulation under coupling of an electric field and a temperature field in the heat treatment process is ensured, the device accelerates the heat treatment process, solute atom distribution in metal can be regulated through an electrostatic field, the performance of a solid metal sample close to the positive and negative electrode faces is different, and therefore gradient materials can be prepared.

Description

Technical Field

[0001] The present invention belongs to the field of alloy phase transformation, and specifically relates to an experimental device for controlling solid-state alloy phase transformation by a strong electrostatic field. Background Art

[0002] An experimental device for controlling solid-state alloy phase transformation by a strong electrostatic field is an experimental equipment that combines strong electrostatic field technology, high-temperature vacuum environment, and precise control system, aiming to study how a strong electrostatic field affects the phase transformation process and its microstructural changes of solid-state alloys.

[0003] The performance and processing method of the experimental device for controlling solid-state alloy phase transformation by a strong electrostatic field have a decisive impact on the overall research effect and practical application. Especially in the core step of using an electrostatic field to assist in solid-state alloy phase transformation, the existing equipment and technology for controlling alloy phase transformation have limitations when dealing with alloy samples.

[0004] Specifically, the existing electrostatic field-assisted heating devices are generally limited by a relatively low electric field strength during the application of solid-state metal phase transformation treatment, usually not exceeding 5 kV / cm, such as 2.5 kV / cm, 3 kV / cm, 4 kV / cm, etc., and the voltage range is 0 - 100 V, and the current is 0 - 60 A / cm 2 , which is mainly due to the fact that the high-voltage electrode is prone to breakdown in the air, resulting in the inability to apply sufficient field strength to effectively promote atomic migration and phase transformation processes inside the solid-state metal. In addition, a large current passing through the solid-state metal specimen will generate a significant Joule heat effect, which has an adverse impact on temperature control and material property optimization during the heat treatment process, increasing the complexity and unpredictability of the experiment.

[0005] More seriously, due to the difficulty of effectively utilizing a super-strong electrostatic field in the existing device, the flexibility and controllability in the process of controlling solid-state alloy phase transformation are greatly limited, which constitutes a major obstacle to the development of new materials with specific microstructures and excellent properties.

[0006] Therefore, those skilled in the art have proposed an experimental device for controlling solid-state alloy phase transformation by a strong electrostatic field to solve the problems raised in the background art. Summary of the Invention

[0007] In order to solve the above technical problems, the present invention provides an experimental device for controlling solid-state alloy phase transformation by a strong electrostatic field to solve the problems in the prior art that due to the difficulty of effectively applying a super-strong electrostatic field in the existing device, the flexibility and controllability in the process of controlling solid-state alloy phase transformation are greatly limited, which constitutes a major obstacle to the development of new materials with specific microstructures and excellent properties, etc.

[0008] An experimental device for controlling solid alloy phase transformation by a strong electrostatic field, comprising a DC ultra-high voltage generator and a vacuum resistance furnace. A protective cover is sleeved outside the vacuum resistance furnace. A vacuum pump is provided on one side of the protective cover, and an inert gas storage tank is provided on the other side of the protective cover. An inner tank is vertically arranged in the inner cavity of the vacuum resistance furnace. An insulating pad is fixedly connected to the center of the bottom of the inner cavity of the inner tank, and a solid metal sample is arranged on the top of the insulating pad;

[0009] Pure copper plates are vertically arranged on both sides of the inner cavity of the inner tank, and mica tape insulated cables are fixedly connected to the tops of the pure copper plates. A cooling and protection mechanism is arranged on one side of the DC ultra-high voltage generator;

[0010] The bottom of the inner tank is fixedly connected with an insulating plate. An installation mechanism is arranged at the bottom of the inner cavity of the vacuum resistance furnace. The installation mechanism includes a base. A docking groove is formed at the top of the base, and a wedge block is inserted into the inner cavity of the docking groove. The top of the wedge block is fixedly connected to the bottom of the insulating plate.

[0011] Preferably, the cooling and protection mechanism includes a cable cooler and a ceramic seal. One end of the cable cooler is fixedly connected to one side of the DC ultra-high voltage generator. One end of the cable cooler penetrates through the side wall of the protective cover and is fixedly connected to one side of the vacuum resistance furnace. Two conventional ultra-high voltage cables are arranged in the inner cavity of the cable cooler. The end of the mica tape insulated cable away from the pure copper plate penetrates through the side wall of the vacuum resistance furnace through the ceramic seal and is fixedly connected to one end of the corresponding conventional ultra-high voltage cable. The other end of the conventional ultra-high voltage cable is fixedly connected to the output end of the corresponding DC ultra-high voltage generator.

[0012] Preferably, a switch door is rotatably connected to one side of the protective cover through a hinge. An air pipe and a transmission pipe are respectively arranged on both sides of the inner cavity of the protective cover. One end of the air pipe penetrates through the side wall of the protective cover through an insulating seal bushing and is fixedly connected to the output end of the vacuum pump. The other end of the air pipe penetrates through the side wall of the vacuum resistance furnace through an insulating seal bushing and is communicated with the inner cavity of the inner tank. One end of the transmission pipe penetrates through the side wall of the protective cover through an insulating seal bushing and is fixedly connected to the output end of the inert gas storage tank. The other end of the transmission pipe penetrates through the side wall of the vacuum resistance furnace through an insulating seal bushing and is communicated with the inner cavity of the inner tank. A plurality of insulating foot pads are fixedly connected to the outer circle of the vacuum resistance furnace along the circumferential direction of the vacuum resistance furnace.

[0013] Preferably, slots are formed on both sides of the wedge block. The bottom of the base is fixedly connected to the bottom of the inner cavity of the inner tank. Installation grooves are formed on both sides of the bottom of the base. An insert block adapted to the slot is horizontally arranged in the inner cavity of the installation groove. A displacement groove is formed at the top of the inner cavity of the installation groove. One side of the insert block is fixedly connected with an extension rod, and a toggle rod adapted to the displacement groove is fixedly connected to the top of the extension rod.

[0014] Preferably, one side of the insertion block is provided with an inclined surface adapted to the wedge block, one inner wall of the installation groove is fixedly connected with a damper, and one end of the damper is fixedly connected with one side of the corresponding insertion block.

[0015] Preferably, an adjusting mechanism is horizontally arranged on one side of the inner cavity of the vacuum resistance furnace. The adjusting mechanism includes an outer frame. One side of the outer frame is fixedly connected with the inner surface wall of the adjacent vacuum resistance furnace. A bidirectional lead screw is horizontally arranged in the inner cavity of the outer frame. Both sides of the outer ring of the bidirectional lead screw are sleeved with screw sleeves. Through grooves are respectively opened on both sides of one inner wall of the outer frame. Both sides of the outer wall of one side of the screw sleeve are fixedly connected with cross bars. A vertical bar is fixedly connected to the top of the pure copper electrode plate. One side of the vertical bar is fixedly connected with a bent bar. One sides of the two corresponding cross bars are respectively fixedly connected with one side of the adjacent bent bar.

[0016] Preferably, one side of the vertical bar is fixedly connected with a reinforcing bar. One ends of the two corresponding cross bars are respectively fixedly connected with one side of the adjacent reinforcing bar.

[0017] Preferably, both ends of the bidirectional lead screw are rotatably connected with the inner wall of the adjacent outer frame through rotating shafts, and a handle is sleeved in the middle of the outer ring of the bidirectional lead screw.

[0018] Preferably, an insulating sleeve is sleeved on the outer ring of the mica tape insulated cable, and one end of the insulating sleeve is attached to the top of the adjacent pure copper electrode plate.

[0019] Preferably, a control cabinet is arranged on one side of the protective cover. The control cabinet is electrically connected with the vacuum pump through an insulated wire, and the control cabinet is electrically connected with the inner tank through an insulated wire.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. The present invention accelerates the migration of atoms inside the solid metal, improves the efficiency and flexibility of material microstructure regulation. By utilizing a high-vacuum environment and introducing sulfur hexafluoride as an insulating medium, this method effectively avoids the breakdown phenomenon that easily occurs in high-voltage electrodes in air, and at the same time eliminates the influence of the Joule heat effect, ensuring precise phase transition regulation under the coupling of the electric field and temperature field during the alloy phase transition process. This device speeds up the alloy phase transition process, and can regulate the distribution of solute atoms inside the metal through an electrostatic field, causing differences in the properties of the solid metal specimen near the positive and negative electrode surfaces, so as to realize the preparation of gradient materials. In summary, the design of this device supports a wide range and flexible adjustment of the electrostatic field strength, provides a high degree of flexibility and control ability for studying solid metal specimens of various materials and shapes, and is conducive to the development of new materials with specific microstructures and excellent properties.

[0022] 2. The present invention improves the versatility and adaptability of the equipment, enabling it to adapt to solid metal specimens of different sizes and shapes without the need for additional equipment replacement or complex adjustments. By precisely controlling the distance and relative position between the pure copper plates, this technical means effectively optimizes the uniformity of the electrostatic field distribution, thereby further enhancing the controllability of the electric field strength during the experiment. This not only facilitates the study of the behavior of different materials under strong electrostatic fields but also enhances the comparability and reliability of experimental data.

[0023] 3. The present invention lowers the operation threshold, making experimental preparation and equipment adjustment more efficient and convenient. Once the inner tank is docked and locked with the base, the tight plugging between the plug and the slot can effectively prevent accidental loosening or detachment caused by external vibration or other interference factors, ensuring the stability and reliability of the equipment connection during the experiment. The design of the damper not only provides the necessary buffering effect and reduces the damage that may be caused to the equipment by vibration. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 is a sectional view of the protective cover of the present invention;

[0026] Figure 3 is a schematic diagram of the structure of the DC ultra-high voltage generator of the present invention;

[0027] Figure 4 is a sectional view of the cable cooler of the present invention;

[0028] Figure 5 is a schematic diagram of the structure of the mica tape insulated cable of the present invention;

[0029] Figure 6 is a sectional view of the vacuum resistance furnace of the present invention;

[0030] Figure 7 is a schematic diagram of the internal structure of the adjusting mechanism of the present invention;

[0031] Figure 8 is a schematic diagram of the structure of the inner tank of the present invention;

[0032] Figure 9 is a sectional view of the installation mechanism of the present invention;

[0033] Figure 10 is another sectional view of the installation mechanism of the present invention.

[0034] In the figure:

[0035] 1. Protective cover; 2. Door; 3. DC ultra-high voltage generator; 4. Cooling and protection mechanism; 401. Cable cooler; 402. Conventional ultra-high voltage cable; 403. Ceramic seal; 5. Vacuum pump; 6. Insulating plate; 7. Vacuum resistance furnace; 8. Air pipe; 9. Inert gas storage tank; 10. Transfer pipe; 11. Mica tape insulated cable; 12. Inner tank; 13. Pure copper electrode plate; 14. Adjusting mechanism; 1401. Outer frame; 1402. Bi-directional lead screw; 1403. Handle; 1404. Nut sleeve; 1405. Cross bar; 1406. Through slot; 1407. Bent rod; 1408. Reinforcing rod; 1409. Vertical rod; 15. Insulating sleeve; 16. Insulating foot pad; 17. Insulating block; 18. Solid metal specimen; 19. Mounting mechanism; 1901. Base; 1902. Wedge block; 1903. Slot; 1904. Mounting groove; 1905. Docking groove; 1906. Displacement groove; 1907. Poking rod; 1908. Damper; 1909. Insert block; 21. Control cabinet. Detailed implementation mode

[0036] The following further describes in detail the implementation mode of the present invention in conjunction with the drawings and embodiments. The following embodiments are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0037] As shown in the attached Figure 1 to the attached Figure 10 figure:

[0038] Embodiment 1: The present invention provides an experimental device for controlling the phase transformation of solid alloys in a strong electrostatic field, including a DC ultra-high voltage generator 3 and a vacuum resistance furnace 7. A protective cover 1 is sleeved outside the vacuum resistance furnace 7, and a vacuum pump 5 is provided on one side of the protective cover 1, and an inert gas storage tank 9 is provided on the other side of the protective cover 1. An inner tank 12 is vertically arranged in the inner cavity of the vacuum resistance furnace 7. An insulating block 17 is fixedly connected to the center of the bottom of the inner cavity of the inner tank 12, and a solid metal specimen 18 is arranged on the top of the insulating block 17;

[0039] Pure copper electrode plates 13 are vertically arranged on both sides of the inner cavity of the inner tank 12, and a mica tape insulated cable 11 is fixedly connected to the top of the pure copper electrode plates 13. A cooling and protection mechanism 4 is provided on one side of the DC ultra-high voltage generator 3;

[0040] The bottom of the inner tank 12 is fixedly connected to an insulating plate 6. A mounting mechanism 19 is arranged at the bottom of the inner cavity of the vacuum resistance furnace 7. The mounting mechanism 19 includes a base 1901, and a docking groove 1905 is opened at the top of the base 1901, and a wedge block 1902 is inserted into the inner cavity of the docking groove 1905. The top of the wedge block 1902 is fixedly connected to the bottom of the insulating plate 6.

[0041] The cooling and protection mechanism 4 includes a cable cooler 401 and a ceramic seal 403. One end of the cable cooler 401 is fixedly connected to one side of the DC ultra-high voltage generator 3, and one end of the cable cooler 401 penetrates through the side wall of the protective cover 1 and is fixedly connected to one side of the vacuum resistance furnace 7. Two conventional ultra-high voltage cables 402 are arranged in the inner cavity of the cable cooler 401. One end of the mica tape insulated cable 11 away from the pure copper electrode plate 13 penetrates through the side wall of the vacuum resistance furnace 7 through the ceramic seal 403 and is fixedly connected to one end of the corresponding conventional ultra-high voltage cable 402. The other end of the conventional ultra-high voltage cable 402 is fixedly connected to the output end of the corresponding DC ultra-high voltage generator 3.

[0042] Preferably, a switch door 2 is rotatably connected to one side of the protective cover 1 through a hinge. An air pipe 8 and a transfer pipe 10 are respectively arranged on both sides of the inner cavity of the protective cover 1. One end of the air pipe 8 penetrates through the side wall of the protective cover 1 through an insulating seal bushing and is fixedly connected to the output end of the vacuum pump 5. The other end of the air pipe 8 penetrates through the side wall of the vacuum resistance furnace 7 through an insulating seal bushing and is communicated with the inner cavity of the inner tank 12. One end of the transfer pipe 10 penetrates through the side wall of the protective cover 1 through an insulating seal bushing and is fixedly connected to the output end of the inert gas storage tank 9. The other end of the transfer pipe 10 penetrates through the side wall of the vacuum resistance furnace 7 through an insulating seal bushing and is communicated with the inner cavity of the inner tank 12. A plurality of insulating feet 16 are fixedly connected to the outer ring of the vacuum resistance furnace 7 along the circumferential direction of the vacuum resistance furnace 7.

[0043] Preferably, slots 1903 are provided on both sides of the wedge-shaped block 1902. The bottom of the base 1901 is fixedly connected to the bottom of the inner cavity of the inner container 12. Installation grooves 1904 are provided on both sides of the bottom of the base 1901. A plug block 1909 adapted to the slot 1903 is horizontally arranged in the inner cavity of the installation groove 1904. A displacement groove 1906 is provided at the top of the inner cavity of the installation groove 1904. One side of the plug block 1909 is fixedly connected with an extension rod, and a toggle rod 1907 adapted to the displacement groove 1906 is fixedly connected to the top of the extension rod. Specifically, the model of the DC ultra-high voltage generator 3 is ZKX-200HVC, the model of the conventional ultra-high voltage cable 402 is UHC-50KV10, the model of the vacuum pump 5 is VP-10-4HV, the model of the vacuum resistance furnace 7 is VF-1700HVC, the model of the mica tape insulated cable 11 is HTUHC-200KV10, the model of the inner container 12 is RF-1700T, the model of the DC ultra-high voltage generator 3 is DHVG-200KV100mA, the material of the protective cover 1 is polycarbonate, the material of the insulating sleeve 15 is alumina ceramic. An insulating outer frame made of alumina ceramic is installed on one side of the pure copper electrode plate 13 close to the inner container 12. The function of this insulating outer frame is to isolate the pure copper electrode plate 13 from generating an electrostatic field with the adjacent inner wall of the inner container 12. The materials of the bent rod 1407, the reinforcing rod 1408 and the vertical rod 1409 are all corundum. The furnace cover material of the vacuum resistance furnace 7 is zirconia toughened alumina. The materials of the insulating foot pads 16 and the insulating pads 17 are both silicon nitride ceramics. The voltage of the DC ultra-high voltage generator 3 is 0-200 kV.

[0044] As can be seen from the above, first, the pre-treated solid metal sample 18 is cut into a suitable size and its surface is cleaned. Then, the solid metal sample 18 is placed directly above the insulating spacer 17 at the center of the top of the insulating spacer 17. Subsequently, according to the size of the solid metal sample 18, the position relationship between the two pure copper plates 13 is adjusted by the adjusting mechanism 14 to achieve the effect of adapting to different solid metal samples 18. The personnel close the vacuum resistance furnace 7, then exit the protective cover 1, and evacuate the inside of the vacuum resistance furnace 7 through the vacuum pump 5 and the air pipe 8, so that the inside of the vacuum resistance furnace 7 reaches the experimental requirement standard. The inert insulating gas sulfur hexafluoride stored in the inert gas storage tank 9 is input into the vacuum resistance furnace 7 through the air pump in the inert gas storage tank 9 and the transmission pipe 10. At this time, the pressure of the inert insulating gas sulfur hexafluoride inside the vacuum resistance furnace 7 is maintained between 0.1 MPa and 0.5 MPa, so that the inert insulating gas sulfur hexafluoride can effectively provide high electrical insulation for the inside of the vacuum resistance furnace 7 without affecting the safety of the internal structure of the vacuum resistance furnace 7. The personnel turn on the vacuum resistance furnace 7 through the control cabinet 21 to heat up the inside of the vacuum resistance furnace 7. After the furnace temperature of the vacuum resistance furnace 7 reaches the target temperature, the personnel control the operation of the DC ultra-high voltage generator 3 through the control cabinet 21, and transmit the power to the corresponding pure copper plate 13 through the conventional ultra-high voltage cable 402 and the corresponding mica tape insulated cable 11, so that an electrostatic field is formed between the two pure copper plates 13. At this time, the inside of the vacuum resistance furnace 7 is converted from a state without an electric field to a state with an electric field. The personnel gradually control the DC ultra-high voltage generator 3 through the control cabinet 21 to strengthen the intensity of the electrostatic field until the intensity of the electrostatic field reaches the target electrostatic field intensity expected by the personnel, thus achieving the effect of heat treatment of the solid metal sample 18 by the electrostatic field-assisted vacuum resistance furnace 7. At this time, the electrostatic field-assisted heat treatment process, that is, the process of controlling the solute distribution in the solid metal sample 18 by the electrostatic field, is completed. After the experiment, the personnel turn off the DC ultra-high voltage generator 3 and the vacuum resistance furnace 7 through the control cabinet 21, and evacuate the vacuum inside the vacuum resistance furnace 7 again through the vacuum pump 5 and the air pipe 8. The personnel enter the protective cover 1, open the vacuum resistance furnace 7, and take out the heated solid metal sample 18;

[0045] Compared with the prior art, firstly, this device can apply an electric field intensity of up to 200 kV / cm, far exceeding the current generally limited value of no more than 5 kV / cm, greatly promoting the migration of atoms inside solid metals, and improving the efficiency and flexibility of material microstructure regulation. Secondly, by adopting a high-vacuum environment and injecting sulfur hexafluoride as an insulating medium, the problem of easy breakdown of high-voltage electrodes in the air is avoided, and at the same time, the influence of the Joule heat effect is effectively reduced, ensuring precise phase transformation regulation under the coupling of the electric field and temperature field during the heat treatment process. In addition, the design of this device allows for flexible adjustment of the electrostatic field intensity, providing great flexibility and controllability for studying alloys of different materials and shapes, which helps to develop new materials with specific microstructures and excellent properties. Finally, the entire operation process is simple and safe, greatly reducing the operation complexity and cost, significantly improving the experimental efficiency and the repeatability of the results, meeting the requirements of modern scientific research for high precision and mass production, and promoting the progress and development of metal materials science research.

[0046] Embodiment 2: This embodiment is basically the same as the previous one, except that, preferably, one side of the insertion block 1909 is provided with an inclined surface adapted to the wedge block 1902, and one side inner wall of the installation groove 1904 is fixedly connected with a damper 1908, and one end of the damper 1908 is fixedly connected with one side of the corresponding insertion block 1909.

[0047] Preferably, an adjustment mechanism 14 is horizontally arranged on one side of the inner cavity of the vacuum resistance furnace 7. The adjustment mechanism 14 includes an outer frame 1401, one side of the outer frame 1401 is fixedly connected with the inner surface wall of the adjacent vacuum resistance furnace 7, a bidirectional lead screw 1402 is horizontally arranged in the inner cavity of the outer frame 1401, both sides of the outer circle of the bidirectional lead screw 1402 are sleeved with screw sleeves 1404, through grooves 1406 are opened on both sides of one side inner wall of the outer frame 1401, cross bars 1405 are fixedly connected to both sides of the outer wall of one side of the screw sleeve 1404, a vertical bar 1409 is fixedly connected to the top of the pure copper electrode plate 13, a bent bar 1407 is fixedly connected to one side of the vertical bar 1409, and one side of the corresponding two cross bars 1405 is respectively fixedly connected with one side of the adjacent bent bar 1407.

[0048] As can be seen from the above, firstly, the precise adjustment of the position of the pure copper electrode plate 13 is realized through the adjustment mechanism 14, enabling the device to adapt to solid metal specimens 18 of different sizes. Specifically, the operator rotates the bidirectional lead screw 1402 according to the actual size of the solid metal specimen 18, uses the thread drive mechanism to move the two screw sleeves 1404 away from or close to each other, and then drives the corresponding cross bars 1405 and vertical bar 1409 to displace, finally realizing the flexible adjustment of the positional relationship between the pure copper electrode plates 13. This design not only simplifies the operation process but also ensures the consistency and accuracy of the electric field distribution during each experiment, providing a reliable basis for the experimental results;

[0049] Secondly, this adjustment method improves the versatility and flexibility of the equipment, enabling the same device to be applicable to the research of various specifications and types of alloy materials without the need to replace different equipment or components, greatly saving the experimental preparation time and cost. At the same time, due to its precise positioning ability, the intensity and distribution of the electrostatic field can be more accurately controlled, thereby improving the repeatability and reliability of the experimental results. In addition, the design of the adjustment mechanism 14 reduces the errors that may be brought about by manual adjustment, ensuring a high degree of consistency and stability of the experimental conditions. This not only helps to improve the experimental efficiency but also better meets the requirements of high-precision, large-scale production or scientific research, providing strong support for the development of new materials with specific microstructures and excellent properties.

[0050] Example 3: This example is basically the same as the previous example, except that preferably, a reinforcing rod 1408 is fixedly connected to one side of the vertical rod 1409, and one ends of two corresponding cross rods 1405 are fixedly connected to one side of the adjacent reinforcing rod 1408.

[0051] Preferably, both ends of the bidirectional lead screw 1402 are rotatably connected to the inner wall of the adjacent outer frame 1401 through a rotating shaft, and a grip 1403 is sleeved in the middle of the outer circle of the bidirectional lead screw 1402.

[0052] Preferably, an insulating sleeve 15 is sleeved on the outer circle of the mica tape insulated cable 11, and one end of the insulating sleeve 15 is in contact with the top of the adjacent pure copper electrode plate 13.

[0053] Preferably, a control cabinet 21 is provided on one side of the protective cover 1. The control cabinet 21 is electrically connected to the vacuum pump 5 through an insulated wire, and the control cabinet 21 is electrically connected to the inner tank 12 through an insulated wire.

[0054] As can be seen from the above, when a person needs to dock the inner tank 12 with the base 1901, the person aligns the wedge block 1902 with the docking groove 1905 and inserts it downward with force. When the wedge block 1902 contacts the adjacent insertion block 1909, cooperating with the inclined surface on the insertion block 1909, the wedge block 1902 squeezes the insertion block 1909 into the corresponding installation groove 1904. When the insulating plate 6 abuts against the top of the base 1901, the insertion block 1909 is subjected to the acting force of the corresponding damper 1908, so that the insertion block 1909 is inserted into the corresponding slot 1903, achieving the locking effect. When the person needs to disconnect the inner tank 12 from the base 1901, the person pulls the two toggle levers 1907 outward respectively, so that the toggle levers 1907 drive the corresponding insertion blocks 1909 to disengage from the adjacent slots 1903, thereby disconnecting the connection between the insulating plate 6 and the base 1901. The person can then lift the inner tank 12 upward with force. This process does not require additional tools or complex operations, greatly simplifying the difficulty of equipment assembly and maintenance. Secondly, this locking mechanism ensures the stability and reliability of the connection. Once the inner tank 12 is docked and locked with the base 1901, the insertion of the insertion block 1909 into the slot 1903 can effectively prevent accidental loosening or detachment caused by external vibration or other interference factors, ensuring the stable operation of the equipment during the experiment. At the same time, the design of the damper 1908 not only provides the necessary buffering effect but also enhances the safety of the connection between the insertion block 1909 and the slot 1903.

[0055] The embodiments of the present invention are given for purposes of illustration and description. Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present invention.

Claims

1. An experimental device for controlling solid alloy phase transformation by a strong electrostatic field, comprising a DC ultra-high voltage generator (3) and a vacuum resistance furnace (7), characterized in that: A protective cover (1) is sleeved outside the vacuum resistance furnace (7), a vacuum pump (5) is arranged on one side of the protective cover (1), and an inert gas storage tank (9) is arranged on the other side of the protective cover (1). An inner tank (12) is vertically arranged in the inner cavity of the vacuum resistance furnace (7). An insulating cushion block (17) is fixedly connected to the center position of the bottom of the inner cavity of the inner tank (12), and a solid metal sample (18) is arranged on the top of the insulating cushion block (17). Pure copper plates (13) are vertically arranged on both sides of the inner cavity of the inner tank (12), and mica tape insulated cables (11) are fixedly connected to the tops of the pure copper plates (13). A cooling and protection mechanism (4) is arranged on one side of the DC ultra-high voltage generator (3). An insulating plate (6) is fixedly connected to the bottom of the inner tank (12). An installation mechanism (19) is arranged at the bottom of the inner cavity of the vacuum resistance furnace (7). The installation mechanism (19) includes a base (1901), a docking groove (1905) is formed in the top of the base (1901), a wedge block (1902) is inserted into the inner cavity of the docking groove (1905), and the top of the wedge block (1902) is fixedly connected to the bottom of the insulating plate (6).

2. The experimental device for controlling the phase transformation of a solid alloy by a strong electrostatic field according to claim 1, characterized in that: The cooling and protection mechanism (4) includes a cable cooler (401) and a ceramic seal (403). One end of the cable cooler (401) is fixedly connected to one side of the DC ultra-high voltage generator (3), and one end of the cable cooler (401) penetrates through the side wall of the protective cover (1) and is fixedly connected to one side of the vacuum resistance furnace (7). Two conventional ultra-high voltage cables (402) are arranged in the inner cavity of the cable cooler (401). The end of the mica tape insulated cable (11) away from the pure copper plate (13) penetrates through the side wall of the vacuum resistance furnace (7) through the ceramic seal (403) and is fixedly connected to one end of the corresponding conventional ultra-high voltage cable (402). The other end of the conventional ultra-high voltage cable (402) is fixedly connected to the output end of the corresponding DC ultra-high voltage generator (3).

3. The experimental device for controlling solid alloy phase transformation by strong electrostatic field according to claim 1, characterized in that: A switch door (2) is rotatably connected to one side of the protective cover (1) through a hinge. An air pipe (8) and a transmission pipe (10) are respectively arranged on both sides of the inner cavity of the protective cover (1). One end of the air pipe (8) penetrates through the side wall of the protective cover (1) through an insulating seal bushing and is fixedly connected to the output end of the vacuum pump (5). The other end of the air pipe (8) penetrates through the side wall of the vacuum resistance furnace (7) through an insulating seal bushing and is communicated with the inner cavity of the inner tank (12). One end of the transmission pipe (10) penetrates through the side wall of the protective cover (1) through an insulating seal bushing and is fixedly connected to the output end of the inert gas storage tank (9). The other end of the transmission pipe (10) penetrates through the side wall of the vacuum resistance furnace (7) through an insulating seal bushing and is communicated with the inner cavity of the inner tank (12). A plurality of insulating foot pads (16) are fixedly connected to the outer ring of the vacuum resistance furnace (7) along the circumferential direction of the vacuum resistance furnace (7).

4. The experimental device for controlling the phase change of solid alloys by a strong electrostatic field according to claim 1, characterized in that: Both sides of the wedge block (1902) are provided with slots (1903). The bottom of the base (1901) is fixedly connected to the bottom of the inner cavity of the inner tank (12). Both sides of the bottom of the base (1901) are provided with mounting grooves (1904). A plug (1909) adapted to the slot (1903) is horizontally arranged in the inner cavity of the mounting groove (1904). A displacement groove (1906) is provided at the top of the inner cavity of the mounting groove (1904). One side of the plug (1909) is fixedly connected with an extension rod, and a toggle rod (1907) adapted to the displacement groove (1906) is fixedly connected to the top of the extension rod.

5. The experimental device for controlling the phase change of solid alloy by strong electrostatic field according to claim 4, characterized in that: One side of the plug (1909) is provided with an inclined surface adapted to the wedge block (1902). One side inner wall of the mounting groove (1904) is fixedly connected with a damper (1908), and one end of the damper (1908) is fixedly connected to one side of the corresponding plug (1909).

6. The experimental device for controlling the phase change of solid alloys by a strong electrostatic field according to claim 1, characterized in that: A regulating mechanism (14) is horizontally arranged on one side of the inner cavity of the vacuum resistance furnace (7). The regulating mechanism (14) includes an outer frame (1401). One side of the outer frame (1401) is fixedly connected to the inner surface wall of the adjacent vacuum resistance furnace (7). A bidirectional lead screw (1402) is horizontally arranged in the inner cavity of the outer frame (1401). Both sides of the outer ring of the bidirectional lead screw (1402) are sleeved with screw sleeves (1404). Through grooves (1406) are provided on both sides of one side inner wall of the outer frame (1401). Cross bars (1405) are fixedly connected to both sides of the outer wall of one side of the screw sleeve (1404). A vertical rod (1409) is fixedly connected to the top of the pure copper electrode plate (13). A bent rod (1407) is fixedly connected to one side of the vertical rod (1409). One side of the two corresponding cross bars (1405) is fixedly connected to one side of the adjacent bent rod (1407) respectively.

7. The experimental device for controlling the phase change of solid alloys by a strong electrostatic field according to claim 6, characterized in that: A reinforcing rod (1408) is fixedly connected to one side of the vertical rod (1409). One end of the two corresponding cross bars (1405) is fixedly connected to one side of the adjacent reinforcing rod (1408).

8. The experimental device for controlling the phase change of solid alloys by a strong electrostatic field according to claim 6, wherein: Both ends of the bidirectional lead screw (1402) are rotatably connected to the inner wall of the adjacent outer frame (1401) through a rotating shaft, and a grip (1403) is sleeved on the middle part of the outer ring of the bidirectional lead screw (1402).

9. The experimental device for controlling the phase change of a solid alloy by a strong electrostatic field according to claim 1, characterized in that: An insulating sleeve (15) is sleeved on the outer ring of the mica tape insulated cable (11), and one end of the insulating sleeve (15) is attached to the top of the adjacent pure copper electrode plate (13).

10. The experimental device for controlling the phase transformation of a solid alloy by a strong electrostatic field according to claim 2, wherein: A control cabinet (21) is arranged on one side of the protective cover (1). The control cabinet (21) is electrically connected to the vacuum pump (5) through an insulated wire. The control cabinet (21) is electrically connected to the inner tank (12) through an insulated wire.

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