A sample rod integrated processing device for superconducting wire IC testing and its use method

Abstract

The present invention discloses an integrated sample rod processing device for superconducting wire Ic testing and its use method. The integrated processing device includes an operating table primarily constructed from a support frame and a panel. The panel is divided from left to right into a drying area, a storage area, and a welding area, according to the sample rod loading process. A drying actuator, a storage mechanism, a welding actuator, and a control mechanism are mounted on the operating table corresponding to each area. Through this integrated processing device, the present invention not only improves the efficiency of sample rod loading and the automation level of the sample rod drying, storage, and welding process during low-temperature superconducting wire testing, but also improves the working environment of each sample rod loading step, ensuring the health of test personnel. It also prevents sample rod contamination that could affect test precision and accuracy, thereby advancing the development of equipment for superconducting wire production.

Description

Technical Field

[0001] The present invention belongs to the technical field of auxiliary testing of low-temperature superconducting wires, and specifically relates to a sample rod integrated processing device for superconducting wire Ic testing and a method for using the device. The device is mainly used to complete the sample rod loading step. Background Art

[0002] Superconducting wire is primarily used in the manufacture of high-field magnets, ultimately finding applications in large-scale scientific projects and advanced equipment manufacturing, including new energy sources (such as the International Thermonuclear Experimental Reactor (ITER) and the Chinese Fusion Reactor (CFETR), magnetic resonance imaging (MRI), and nuclear magnetic resonance spectrometers (NMR). Currently, NbTi and Nb3Sn superconducting wires, as relatively mature superconducting products with mature processing technology and applications, are experiencing increasing demand in both domestic and international markets. In recent years, with the deepening of superconducting wire research, the demand for commercialization and industrialization has become increasingly urgent, leading to the development of various related equipment and devices.

[0003] Among them, critical current Ic is one of the key indicators for measuring the performance of superconducting wires. In the low-temperature test of superconducting wires, the critical current test mainly includes three processes: magnet cooling, sample preparation and testing. The sample preparation includes multiple steps such as sample verification, sampling, winding, welding and sample rod loading. The efficient completion of the sample rod loading process is of great significance to the improvement of Ic test efficiency. The sample rod loading can be further divided into three processes: sample rod drying, storage and welding.

[0004] As known to those skilled in the art, when testing a superconducting wire sample 1c, it is necessary to firstly Figure 1 as shown) is fixed to the sample holder (as Figure 2 The sample rod is reusable. After the Ic test of the previous sample is completed, the sample rod is pulled out of the magnet. Liquid will be attached to the surface of the sample rod. The sample rod needs to be blown dry before loading the sample again. Then it is stored in the area to be welded and a new sample frame is reinstalled. After the above preparations are completed, the tester welds the current lead on the sample rod to the sample frame, completing the sample rod loading step and waiting for the Ic test. The above-mentioned various processes in the prior art are carried out independently without a unified device, which has the following disadvantages:

[0005] First, the sample rod does not have a dedicated drying device, and the drying time is long. As the number of test samples increases, this process seriously affects the low-temperature test efficiency;

[0006] Second, there is no dedicated storage platform for the sample rod after it is blown dry, which causes dust or other pollutants in the environment to easily adhere to the surface of the sample rod, thereby contaminating the liquid helium in the magnet and affecting the stability of the test results.

[0007] Third, during the welding process, there is no dedicated welding equipment. When the number of sample welds increases, the solder fume can easily cause serious harm to the welder's body and affect human health.

[0008] In view of this, the present inventors propose a sample rod integrated processing device and a method for use for superconducting wire Ic testing, which are used to solve the above-mentioned problems existing in the existing sample rod loading. Summary of the Invention

[0009] The object of the present invention is to overcome the shortcomings of the above-mentioned prior art and provide an integrated sample rod processing device and a method for use for superconducting wire Ic testing. Through this integrated processing device, the efficiency of sample rod loading in low-temperature testing of superconducting wires and the degree of automation of the sample rod drying → storage → welding process are improved. More importantly, the working environment of each link of sample rod loading is improved, the health of test personnel is ensured, and the research and development process of equipment used in superconducting wire production is promoted.

[0010] The purpose of the present invention is to solve the problem through the following technical solutions:

[0011] An integrated sample holder processing device for superconducting wire Ic testing includes an operating table primarily constructed from a support frame and a panel. The operating table is divided from left to right into a drying area, a storage area, and a welding area according to the sample holder loading process. A drying actuator, a storage mechanism, and a welding actuator are installed on the operating table corresponding to each area.

[0012] The drying actuator includes a drying furnace for placing the sample rod and a hot air blower that provides heat for the drying furnace, and the hot air blower is connected to the drying furnace through a pipeline;

[0013] The storage mechanism includes a plurality of support blocks for supporting the sample rods, the outer periphery of the support blocks is provided with a dust cover, and the dust cover is provided with a movable window for storing and accessing the sample rods;

[0014] The welding actuator includes a support and clamping unit for carrying and fixing the sample rod, an electric soldering iron installed at the tail end of the sample rod, and a smoke exhaust unit for exhausting the smoke generated by the electric soldering iron welding. The smoke exhaust unit consists of an exhaust pipe and a solder exhaust fan. The inlet of the exhaust pipe is located at the welding position of the electric soldering iron. The support and clamping unit, the electric soldering iron and the exhaust pipe are all arranged in a protective cover.

[0015] Furthermore, exhaust fans are installed on the tops of the dust cover and the protective cover.

[0016] Furthermore, the integrated processing device also includes a control mechanism installed on the operating table, the control mechanism includes a control cabinet and a touch screen connected to the control cabinet, the control cabinet is electrically connected to the exhaust fan, hot air blower, soldering iron and solder fume exhaust fan, respectively, and is individually controlled through the touch screen.

[0017] Furthermore, the operating table further includes a base plate installed at the bottom of the support frame and located directly below the panel, and a file cabinet, a tool cabinet and a storage cabinet for samples to be tested are arranged on the same side between the base plate and the panel, and the storage cabinet for samples to be tested is arranged close to the welding area;

[0018] The hot air blower, control cabinet and solder fume exhauster are all mounted on the bottom plate through fasteners.

[0019] Furthermore, the drying oven is composed of a symmetrical and horizontal upper half and a hinged lower half, and both the upper half and the lower half are provided with a penetrating arc groove along the length direction for placing the sample rod;

[0020] The upper part is provided with a handle for opening and closing the drying oven;

[0021] The lower half is fixed on the panel of the operating table through a bracket, and the lower half is provided with a plurality of air inlets connected with the arc groove at equal intervals along the length direction, and the air inlets are connected to the pipeline through a clamp.

[0022] Furthermore, the drying oven is made of PVC material, and windshields are arranged at intervals on both sides of the drying oven (21) to prevent hot air from blowing out directly from the arc groove and burning the test personnel.

[0023] Furthermore, the storage mechanism includes four groups of support blocks fixedly mounted on the panel, each group of support blocks consists of two support blocks, which are respectively arranged at the head and tail of the sample rod, and the top of each support block is an arc surface.

[0024] Furthermore, the supporting and clamping units are in two groups and are both arranged on a panel, which includes a positioning block and a clamping block arranged above the positioning block. The positioning block and the two sides of the clamping block are connected by screws for locking the sample rod, and the surfaces where the positioning block and the clamping block contact the sample rod are arc-shaped surfaces.

[0025] Furthermore, the support block and the support clamping unit are both made of polytetrafluoroethylene material to avoid scratching the surface of the sample rod.

[0026] In another aspect, the present invention provides a method for using a sample rod integrated processing device for superconducting wire Ic testing, comprising the following steps:

[0027] Step 1: Dry the sample rod

[0028] First, open the drying oven, then pull the sample rod out of the magnet and place it into the opened drying oven. Then close the drying oven and start the hot air blower. Set the drying time of the sample rod to 3 to 5 minutes.

[0029] Step 2: Store the sample rod and fix the sample skeleton to be tested at its tail end

[0030] After the sample rod in step 1 is dried, turn off the hot air blower, open the drying oven and the movable window, then move the dried sample rod to the support block in the storage mechanism, start the exhaust fan on the dust cover, and then fix the sample skeleton to be tested to the tail end of the sample rod;

[0031] Step 3: Welding the sample rod

[0032] Open the protective cover, place the sample rod with the sample skeleton to be tested on the support clamping unit, lock it, and then preheat the soldering iron to the temperature required by the welding process; turn on the exhaust fan on the protective cover, turn on the solder fume exhaust fan, and adjust the entrance position of the exhaust pipe; the tester welds the current lead to the sample skeleton to be tested that has been installed on the sample rod. After welding is completed, move the sample rod to the magnet for lower rod testing. After the test is completed, repeat the above steps for the next superconducting wire sample test.

[0033] Compared with the prior art, the present invention has the following beneficial effects:

[0034] The present invention provides an integrated sample rod processing device for superconducting wire Ic testing and a method for using the device. The integrated processing device integrates the blowing, storage, and welding processes of sample rod loading, thereby improving the efficiency and automation of sample rod loading in low-temperature superconducting wire testing. The device significantly improves the operating environment of each step of sample rod loading, ensures the quality of the final sample rod, avoids contamination of liquid nitrogen in a magnet, and provides a benchmark for the precision and accuracy of subsequent superconducting wire Ic testing. More importantly, the device ensures the health of test personnel and promotes the development of equipment used in superconducting wire production. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] The accompanying drawings are incorporated in and constitute a part of this specification and, together with the description, serve to explain the principles of the invention.

[0036] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0037] Figure 1 This is a schematic diagram of the skeleton structure of the Ic test sample of the present invention;

[0038] Figure 2 Schematic diagram of the structure of the Ic test sample rod (with the sample skeleton installed) of the present invention;

[0039] Figure 3 It is a schematic diagram of the three-dimensional structure of the integrated processing device of the present invention;

[0040] Figure 4 It is a schematic top view of the integrated processing device of the present invention.

[0041] Figure 5 It is a schematic diagram of the three-dimensional structure of the present invention without the dust cover and the protective cover.

[0042] Among them: 1 is an operating table; 11 is a supporting frame; 12 is a panel; 13 is a bottom plate; 14 is a file cabinet; 15 is a tool cabinet; 16 is a storage cabinet; 121 is a drying area; 122 is a storage area; 123 is a welding area;

[0043] 2 is a drying actuator; 21 is a drying oven; 22 is a hot air blower; 23 is a pipe; 24 is a wind shield; 211 is the upper half; 212 is the lower half;

[0044] 3 is a storage mechanism; 31 is a support block; 32 is a dust cover; 33 is a movable window;

[0045] 4 is a welding actuator; 41 is a support clamping unit; 42 is an electric soldering iron; 43 is a fume exhaust unit; 44 is a protective cover; 411 is a positioning block; 412 is a pressing block; 431 is an exhaust pipe; 432 is a solder fume exhaust machine;

[0046] 5 is an exhaust fan;

[0047] 6 is a control mechanism; 61 is a control cabinet; 62 is a touch screen. DETAILED DESCRIPTION

[0048] Exemplary embodiments will be described in detail herein, examples of which are illustrated in the accompanying drawings. In the following description, when referring to the drawings, identical numerals in different figures represent identical or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments are not intended to represent all possible embodiments consistent with the present invention. Rather, they are merely examples of arrangements consistent with certain aspects of the present invention as detailed in the appended claims.

[0049] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the present invention is described in further detail below with reference to the accompanying drawings and embodiments.

[0050] See also Figures 1 to 5As shown, the present invention provides an integrated sample rod processing device for superconducting wire Ic testing. The device comprises an operating table 1 primarily constructed from a support frame 11 and a top panel 12. The panel 12 is divided, from left to right, into three working areas: a drying area 121, a storage area 122, and a welding area 123, according to the sample rod loading process. Each area is correspondingly mounted on the operating table 1 with a drying actuator 2, a storage mechanism 3, and a welding actuator 4. This device enables the sample rod loading process to be completed in a single operation. Compared to existing technologies, this device improves the efficiency of sample rod loading for superconducting wire low-temperature testing and ensures the quality of sample rod loading.

[0051] Specifically, the drying actuator 2 of the embodiment of the present invention includes a drying furnace 21 for placing the sample rod and a hot air blower 22 for providing a heat source for the drying furnace 21. The hot air blower 22 is connected to the drying furnace 21 through a pipe 23. When selecting the hot air blower 22, the present invention should select a hot air blower that can adjust the drying air volume and temperature.

[0052] Among them, the drying oven 21 of the embodiment of the present invention is made of PVC material to ensure that it can withstand a certain temperature without damaging the surface quality of the sample rod. The drying oven 21 as a whole is similar to a hollow cylinder that is squared into two halves, that is, it is composed of a symmetrical and horizontal upper half 211 and a lower half 212 that are hinged. The upper half 211 and the lower half 212 are both provided with a penetrating arc groove along the length direction for placing the sample rod; the upper half 211 is provided with a handle for opening and closing the drying oven 21 in the middle of the opposite hinged surface, and the lower half 212 is fixed to the panel 12 of the operating table 1 through a bracket, and the lower half 212 is provided with a plurality of air inlets connected to the arc groove at equal distances along its length direction, such as three air inlets in this embodiment, and the air inlet is connected to the pipe 23 by a clamp to make the hot air generated by the hot air blower 22 blow evenly on the sample rod as much as possible, thereby accelerating the drying efficiency.

[0053] In addition, since the hot air temperature generated by the hot air blower 22 is relatively high, in order to prevent the hot air from being blown out directly from both sides of the arc groove of the drying oven 21 and burning the test personnel, the present invention has wind shields 24 arranged at intervals on both sides of the drying oven 21 to change the flow direction of the hot air.

[0054] The storage mechanism 3 of this embodiment of the present invention includes multiple groups of support blocks 31 for supporting sample rods. These support blocks 31 are fixedly mounted in the central area of ​​the panel 12 of the operating table 1. Based on the structural characteristics of the sample rods, two support blocks 31 are arranged in a group, one at the head and one at the tail. The top of each support block 31 is configured to conform to the surface of the sample rod. As shown in the accompanying drawings of this embodiment, four groups are provided, allowing for storage of up to four sample rods at a time. Furthermore, to protect the temporarily stored sample rods from contamination by the surrounding environment, a dust cover 32 is provided around the periphery of the support blocks 31 in this embodiment of the present invention. Removable windows 33 are installed on the dust cover 32, located at both ends of the sample rods, to facilitate access to the sample rods from either end.

[0055] The welding actuator 4 of the present embodiment includes a support and clamping unit 41 for supporting and securing a sample rod, a soldering iron 42 mounted at the end of the sample rod, and a fume exhaust unit 43 for exhausting the fume generated by the soldering iron 42 during welding. The soldering iron 42 is located at the end of the sample rod to facilitate welding by the tester. Both the clamping unit 41 and the soldering iron 42 are fixedly mounted on the right side of the panel 12. The fume exhaust unit 43 consists of an exhaust pipe 431 and a solder fume exhaust fan 432. The inlet of the exhaust pipe 431 is located at the soldering iron 42 welding site. Preferably, the exhaust pipe 431 is a retractable hose so that the soldering iron 42 can be stretched and adjusted to any angle during welding. The solder fume exhaust fan 432 can adjust the exhaust air volume and replace the filter after long-term use. The support and clamping unit 41, the soldering iron 42, and the exhaust pipe 43 are all disposed within a protective cover 44. Removable windows are also provided on both sides of the protective cover 44 to facilitate access to the sample rod during welding.

[0056] Among them, the supporting and clamping units 41 are two groups, that is, at most two sample rod current leads can be welded to the sample skeleton to be tested at one time. Specifically, they include a positioning block 411 and a clamping block 412 arranged above the positioning block 411. The positioning block 411 and the clamping block 412 are connected on both sides by screws to lock the sample rod to prevent the sample rod from shaking during welding. In addition, the surfaces where the positioning block 411 and the clamping block 412 contact the sample rod are arc-shaped surfaces, which further protect the surface quality of the sample rod.

[0057] Preferably, the support block 31, positioning block 411, and pressure block 412 of the present embodiment are all made of polytetrafluoroethylene (PTFE) to prevent scratches and pinching of the sample rod surface. Furthermore, exhaust fans 5 are installed on top of both the dust cover 32 and the protective cover 44. The exhaust fan 5 on the dust cover 32 maintains clean air in the sample rod storage area; the exhaust fan 5 on the protective cover 44 exhausts residual solder fumes during the welding process.

[0058] In addition, the integrated processing device of the embodiment of the present invention also includes a control mechanism 6 installed on the operating table 1, and the control mechanism 6 includes a control cabinet 61 connected to the power supply and a touch screen 62 connected to the control cabinet 61. The control cabinet 61 is electrically connected to the exhaust fan 5, the hot air blower 22, the soldering iron 42 and the solder fume exhaust fan 432 respectively, and is individually controlled through the touch screen 62.

[0059] The operating table 1 of the integrated processing device of the present invention also includes a base plate 13 mounted at the bottom of the support frame 11, directly below the panel 12. A file cabinet 14, a tool cabinet 15, and a sample storage cabinet 16 are located on the same side between the base plate 13 and the panel 12. The sample storage cabinet 16 is located near the welding area 123 to facilitate access to the samples during welding. The hot air blower 22, control cabinet 61, and solder fume exhaust fan 432 are all mounted on the base plate 13 via fasteners. In addition, the bottom of the operating table 1 is evenly distributed with multiple height-adjustable support feet for adjusting the stability of the device.

[0060] In a second aspect, the present invention provides a method for using a sample rod integrated processing device for superconducting wire Ic testing, specifically comprising the following steps:

[0061] 1) Open the upper part 211 of the drying oven 21, and then the tester pulls out the tested sample rod from the magnet and places it in the arc groove of the lower part 212 of the drying oven 21;

[0062] 2) Slowly close the upper part 211 of the drying oven 21 by the handle, start the hot air blower 22, and the drying actuator 2 starts working. The drying time of the sample rod is generally set to 3 to 5 minutes;

[0063] 3) After the sample rods are completely dried, turn off the hot air blower 22, open the upper half 211 of the drying oven 21, and then open the movable window 33 of the dust cover 32. The tester moves the dried sample rods to a designated location in the storage area, waiting for the sample frame to be installed. If the sample rods have been stored for a long time, start the exhaust fan 5 on the dust cover 32 before installing the sample frame. The exhaust time is about 5 minutes.

[0064] 4) The tester inserts the sample frame to be tested into the tail of the sample rod and secures it with the locking mechanism to complete the installation of the sample frame;

[0065] 5) Open the movable window of the protective cover 44, place the sample rod with the sample skeleton to be tested on the support clamping unit 41, and lock it to fix it. The preparation work before welding is completed;

[0066] 6) The hot soldering iron 42 is heated to 300°C, the temperature required by the soldering process, for about 1 minute;

[0067] 7) First press the exhaust fan 5 start button on the protective cover 44 to start the exhaust fan 5, then press the solder fume exhaust machine 432 start button to ensure its normal operation;

[0068] 8) After the soldering iron is preheated, the tester solders the current lead to the sample frame mounted on the sample rod;

[0069] 9) After welding is completed, move the sample rod to be tested to the magnet for rod lowering test; after the test is completed, move the sample rod to the drying oven and perform the next round of operations according to the above steps.

[0070] Note: If the above-mentioned sample loading process is stopped, move the dried sample rod to the sample rod storage mechanism 3, then close the movable window 33, and at the same time turn off the hot air blower 22, solder fume exhaust fan 432 and exhaust fan 5 on the touch screen 62, and turn off the main power of the equipment.

[0071] The foregoing description is intended only to provide specific embodiments of the present invention, which will enable those skilled in the art to understand and implement the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention.

[0072] It should be understood that the present invention is not limited to the above description and that various modifications and changes may be made without departing from the scope thereof. The scope of the present invention is limited only by the appended claims.

Claims

1. A sample rod integrated processing device for superconducting wire Ic testing, comprising an operating table (1) mainly constructed by a support frame (11) and a panel (12); the operating table (1) divides the panel (12) into a drying area (121), a storage area (122) and a welding area (123) from left to right according to the sample rod loading process; and a drying actuator (2), a storage mechanism (3) and a welding actuator (4) are installed on the operating table (1) corresponding to each area; in, The drying actuator (2) comprises a drying oven (21) for placing the sample rod and a hot air blower (22) for providing a heat source for the drying oven (21), wherein the hot air blower (22) is connected to the drying oven (21) via a pipe (23); The storage mechanism (3) comprises a plurality of support blocks (31) for supporting the sample rods, a dust cover (32) is provided on the periphery of the support blocks (31), and a movable window (33) for storing and accessing the sample rods is installed on the dust cover (32); The welding actuator (4) comprises a supporting clamping unit (41) for carrying and fixing the sample rod, an electric soldering iron (42) installed at the tail end of the sample rod, and a fume exhaust unit (43) for exhausting fume generated by the electric soldering iron (42) during welding. The fume exhaust unit (43) is composed of a fume exhaust pipe (431) and a solder fume exhaust machine (432). The inlet of the fume exhaust pipe (431) is located at the welding position of the electric soldering iron (42). The supporting clamping unit (41), the electric soldering iron (42) and the fume exhaust pipe (431) are all arranged in a protective cover (44). An exhaust fan (5) is installed on the top of the dust cover (32) and the protective cover (44); The integrated processing device further comprises a control mechanism (6) mounted on the operating table (1), the control mechanism (6) comprising a control cabinet (61) and a touch screen (62) connected to the control cabinet (61), the control cabinet (61) being electrically connected to the exhaust fan (5), the hot air blower (22), the electric soldering iron (42) and the solder fume exhaust machine (432), respectively, and being individually controlled via the touch screen (62); The drying oven (21) is composed of a symmetrical and horizontal upper half (211) and a lower half (212) which are hinged together. The upper half (211) and the lower half (212) are both provided with a penetrating arc groove along the length direction for placing the sample rod; the upper half (211) is provided with a handle for opening and closing the drying oven (21); the lower half (212) is fixed to the panel (12) of the operating table (1) through a bracket, and the lower half (212) is provided with a plurality of air inlets connected to the arc groove at equal intervals along the length direction, and the air inlets are connected to the pipeline (23) through a clamp; The drying oven (21) is made of PVC material, and windshields (24) are arranged at intervals on both sides of the drying oven (21).

2. The sample rod integrated processing device for superconducting wire Ic testing according to claim 1, characterized in that: The operating table (1) further comprises a bottom plate (13) mounted on the bottom of the supporting frame (11) and located directly below the panel (12); a file cabinet (14), a tool cabinet (15) and a storage cabinet for samples to be tested (16) are arranged on the same side between the bottom plate (13) and the panel (12); and the storage cabinet for samples to be tested (16) is arranged close to the welding area (123); The hot air blower (22), the control cabinet (61) and the solder fume exhauster (432) are all mounted on the base plate (13) via fasteners.

3. The sample rod integrated processing device for superconducting wire Ic testing according to claim 1, characterized in that: The storage mechanism (3) comprises four groups of support blocks (31) fixedly mounted on a panel (12), each group of support blocks (31) comprising two support blocks, which are respectively arranged at the head and tail of the sample rod, and the top of each support block (31) is an arc surface.

4. The sample rod integrated processing device for superconducting wire Ic testing according to claim 1, characterized in that: The supporting and clamping units (41) are provided in two groups and both are provided on the panel (12). The supporting and clamping units (41) include a positioning block (411) and a pressing block (412) provided above the positioning block (411). The positioning block (411) and the pressing block (412) are connected on both sides by screws for locking the sample rod. The surfaces of the positioning block (411) and the pressing block (412) in contact with the sample rod are arc-shaped surfaces.

5. The sample rod integrated processing device for superconducting wire Ic testing according to claim 1, characterized in that: The support block (31) and the support clamping unit (41) are both made of polytetrafluoroethylene material to avoid scratching the surface of the sample rod.

6. A method for using a sample rod integrated processing device for superconducting wire Ic testing according to any one of claims 1 to 5, characterized in that: The specific steps include: Step 1: Dry the sample rod First, open the drying oven (21), then pull the sample rod out of the magnet and place it into the opened drying oven (21), then close the drying oven (21) and start the hot air blower (22), and set the drying time of the sample rod to 3 to 5 minutes; Step 2: Store the sample rod and fix the sample skeleton to be tested at its tail end After the sample rod is dried in step 1, the hot air blower (22) is immediately turned off, the drying oven (21) and the movable window (33) are opened, and the dried sample rod is then moved to the support block (31) in the storage mechanism (3), and the exhaust fan (5) on the dust cover (32) is started, and the sample skeleton to be tested is then fixed to the tail end of the sample rod; Step 3: Welding the sample rod Open the protective cover (44), place the sample rod with the skeleton of the sample to be tested on the support clamping unit (41), lock it and fix it, then preheat the electric soldering iron (42) to the temperature required by the welding process; turn on the exhaust fan (5) on the protective cover (44), and turn on the solder fume exhaust machine (432), and adjust the entrance position of the fume exhaust pipe (431); the tester welds the current lead to the skeleton of the sample to be tested installed on the sample rod. After the welding is completed, the sample rod is moved to the magnet for the rod lowering test. After the test is completed, the above steps can be repeated for the next superconducting wire sample test.

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