Impact sensitivity testing device

Abstract

The utility model discloses an impact sensitivity testing device, which comprises a main operation box and a testing module, the main operation box is a sealed box, a first air inlet and a first air outlet are arranged on the main operation box, the testing module is arranged in the main operation box, and the testing module is used for testing the impact sensitivity of a sample to be tested. The impact sensitivity testing device disclosed by the utility model can accurately test the impact sensitivity of a sample in a required gas atmosphere, and solves the problems that water-forbidden and oxygen-forbidden materials cannot be tested and the test cannot be performed in a specific gas atmosphere in an existing testing method.

Description

Technical Field

[0001] The utility model relates to an impact sensitivity testing device. Background Art

[0002] Impact sensitivity test data is a crucial basis for determining a substance's hazard level and corresponding safety standards. In fields such as chemistry, materials science, and industrial safety, assessing a substance's impact sensitivity is crucial for the production, storage, transportation, and use of flammable and explosive substances. Accurately measuring a substance's impact sensitivity not only safeguards industrial production and public safety, but also promotes the development of new materials, chemical synthesis, and pharmaceutical research.

[0003] According to the United Nations Recommendations on the Transport of Dangerous Goods and GBT 21567-2008, Test Method for Impact Sensitivity of Dangerous Goods and Explosives, the drop-weight test is commonly used in current industrial production to determine the impact sensitivity of materials. The drop-weight test is relatively simple to perform and can intuitively demonstrate the impact effects of a material under a set load, thereby determining whether the material exhibits impact sensitivity under that load.

[0004] The current impact sensitivity test method can accurately determine the ultimate load at which most substances show impact sensitivity in an air atmosphere. However, in the rapidly developing fields of new material research and development, chemical synthesis, and drug research and development, the raw materials, intermediates, and products used often have the characteristics of being easy to absorb moisture and react with water, oxygen, and other components in the air, leading to product deterioration. In addition, materials that are sensitive to water and oxygen may react violently when in contact with water or oxygen, which may have a significant impact on the test results. Moreover, for some special samples, the lack of impact sensitivity in an air atmosphere test does not mean that they are also impact-sensitive under special working conditions such as pure oxygen or pure chlorine. The existing test equipment can only be tested under conventional air atmosphere conditions, and it is impossible to accurately measure the impact sensitivity of the above-mentioned substances, resulting in loopholes in the inherent safety process design in related fields.

[0005] Based on the limitations of existing impact sensitivity tests, there is an urgent need in this field for a device that can measure the impact sensitivity of a substance under a special gas atmosphere. Utility Model Content

[0006] The utility model addresses the problem that there is no impact sensitivity testing device for special working conditions in the prior art, and provides an impact sensitivity testing device. The impact sensitivity testing device of the utility model can accurately test the impact sensitivity of a sample under a required gas atmosphere, solving the problem that the existing testing methods cannot test water-sensitive and oxygen-sensitive materials and cannot test in a specific gas atmosphere.

[0007] The utility model solves the above technical problems through the following technical solutions:

[0008] The utility model provides an impact sensitivity testing device, which includes: a main operation box and a test module, the main operation box is a sealed box, a first air inlet and a first air outlet are provided on the main operation box, the test module is arranged in the main operation box, and the test module is used to test the impact sensitivity of a sample to be tested.

[0009] In the present invention, the main operation box is preferably a glove box for easy operation. The main operation box is provided with a plurality of openings, each of which is fixed with a long-sleeved glove for operators to perform operations such as testing, sampling, and sample preparation.

[0010] In the present invention, the replacement of the atmosphere in the main operating box is completed through the first air inlet and the first air outlet.

[0011] In the present invention, an isolation plate is preferably provided in the main operation box, which divides the main operation box into a first chamber and a second chamber that are independent of each other. A first isolation door that can be opened and closed is provided on the isolation plate, and the test module is arranged in the first chamber.

[0012] In the present invention, a gas composition detector can be further provided on the main operation box to detect the gas inside the main operation box. When the main operation box is divided into the first chamber and the second chamber, the gas composition detector is preferably provided on the second chamber.

[0013] In the present invention, the impact sensitivity testing device preferably also includes a buffer operation box, which is a sealed box. The buffer operation box is provided with a second air inlet and a second air outlet. One end of the buffer operation box is connected to one end of the main operation box. A second isolation door that can be opened and closed is provided at the connection between the buffer operation box and the main operation box. The communication and isolation between the buffer operation box and the main operation box are achieved by opening and closing the second isolation door. The other end of the buffer operation box is provided with a third isolation door that can be opened and closed. The third isolation door is used for sampling. In this preferred embodiment, by providing a buffer operation box, it is possible to avoid the need to replace the gas in the main operation box each time a sample is added in the test. When a buffer operation box is provided, after the atmosphere in the main operation box is replaced with the desired atmosphere at the beginning of the test, it is only necessary to replace the atmosphere in the buffer operation box with the desired atmosphere each time a sample is added in the subsequent test, thereby reducing the operating procedures and the amount of gas required to be replaced.

[0014] Wherein, when the main operation box is divided into the first chamber and the second chamber which are independent of each other, the buffer operation box is preferably connected to one end of the second chamber.

[0015] Preferably, one end of the buffer operation box is open and connected to one end of the main operation box, and the second isolation door is provided in the area of ​​the main operation box located at the open end of the buffer operation box. The buffer operation box and the main operation box are connected and isolated by opening and closing the second isolation door.

[0016] The replacement of the atmosphere in the buffer operation box is completed through the second air inlet and the second air outlet.

[0017] The buffer operation box may be provided with an independent air inlet or outlet pipeline, specifically:

[0018] The second inlet port may be provided with an air inlet pipe, and the second outlet port may be provided with an air outlet pipe. The air inlet pipe is used to connect to the required gas source, and the air outlet pipe is used to connect to the exhaust gas treatment device and the pump. Both the air inlet pipe and the air outlet pipe are preferably provided with a shutoff valve to control the opening and closing of the air inlet pipe and the air outlet pipe.

[0019] The air inlet and outlet of the buffer operation box may also share the same pipelines as the air inlet and outlet of the main operation box. Specifically:

[0020] The first air inlet and the second air inlet are preferably connected through a tee. The connecting pipes between the first air inlet and the tee and the connecting pipes between the second air inlet and the tee are preferably both provided with stop valves.

[0021] The first and second gas outlets are preferably connected via a tee. The connecting pipes between the first and second gas outlets are preferably each provided with a shutoff valve. In the present invention, the first inlet may be provided with an inlet pipe, and the first outlet may be provided with an outlet pipe. The inlet pipe is used to connect to the required gas source, and the outlet pipe is used to connect to the exhaust gas treatment device and pump.

[0022] The air inlet pipe and the air outlet pipe are preferably both provided with a shut-off valve for controlling the opening and closing of the air inlet pipe and the air outlet pipe.

[0023] In the present invention, the impact sensitivity testing device preferably further includes a sample preparation module, which is used to prepare samples to be tested and is disposed within the main operating box. The sample preparation module is preferably disposed within the second chamber, and the prepared samples are transferred to the first chamber through the first isolation door. An isolation plate is provided to isolate the sample preparation module from the testing module to prevent sparks or splashes from the testing module from affecting the sample preparation.

[0024] The sample preparation module may include a sample preparation table, a sample preparation tool box, and a sample storage box. The sample preparation table is made of a conventional hard plate material, preferably coated with a corrosion-resistant coating. The sample preparation tool box is used to store a ceramic mortar, ceramic pestle, ceramic powder funnel, press rod, tweezers, aluminum foil cup, collar, and roller. The sample storage box is used to temporarily store samples transferred to the second chamber.

[0025] In a preferred embodiment of the present invention, the main operation box is a glove box, which is provided with a plurality of openings, each of which is fixed with long-sleeved gloves, and the main operation box is provided with a first air inlet and a first air outlet; an isolation plate is provided in the main operation box, which divides the main operation box into a first chamber and a second chamber that are independent of each other, and a first isolation door that can be opened and closed is provided on the isolation plate, the test module is provided in the first chamber, and a sample preparation module is provided in the second chamber, and the sample preparation module is used to prepare samples to be tested; a buffer operation box is connected to the side of the second chamber, and the buffer operation box is a sealed box, and a second air inlet and a second air outlet are provided on the buffer operation box, the first air inlet and the second air inlet are connected by a tee, and the first air outlet and the second air outlet are preferably connected by a tee, and a second isolation door that can be opened and closed is provided at the connection between the buffer operation box and the second chamber, and a third isolation door that can be opened and closed is provided at the other end of the buffer operation box.

[0026] In the present invention, the impact sensitivity testing device may further include a cleaning module, preferably comprising a spray head disposed within the main operating box, connected to a liquid inlet pipe, and positioned obliquely above the sample placement platform. This preferred embodiment allows for spraying cleaning fluid onto contaminated areas of the device after testing is complete.

[0027] Wherein, the nozzle is preferably an atomizing nozzle.

[0028] The cleaning module may further include a temporary waste storage box, which is placed in an area of ​​the main operation box away from the sample placement table, and is used to store waste after washing.

[0029] The washing liquid used for cleaning can be an active detergent, process water, ethanol or sample quenching liquid.

[0030] In the present invention, the impact sensitivity testing device may further include a recording module, which preferably includes a camera, a data recording controller and a display. The camera is used to record impact test phenomena, the data recording controller is used to record and process test data, and the display is used to assist in observing test phenomena. The camera is connected to the input end of the data recording controller, and the display is connected to the output end of the data recording controller.

[0031] Wherein, the camera, the data recording controller and the display are all arranged outside the main operation box, and the camera is located near the sample placement table.

[0032] In the present invention, the test module can be a conventional impact sensitivity testing device in the field, such as a testing device with a vertically moving hammer. The test module includes a guide rail and a hammer. The guide rail is arranged in the main operating box along the vertical direction. The hammer is arranged on the guide rail, and the hammer can move vertically along the guide rail to hit the sample to be tested.

[0033] The utility model also provides an impact sensitivity testing device, which includes a testing module, wherein the testing module includes a guide rail and a hammer, wherein the guide rail is arranged in a horizontal direction, the hammer is arranged on the guide rail, and the hammer can move horizontally along the guide rail and then hit the sample to be tested.

[0034] In the present invention, the guide rail preferably includes a first guide rail and a second guide rail arranged in parallel along a horizontal direction, and the hammer is clamped between the first guide rail and the second guide rail.

[0035] The first guide rail and the second guide rail may be arranged side by side up and down, or may be arranged side by side on the same horizontal plane. Preferably, the first guide rail and the second guide rail may be arranged side by side up and down.

[0036] The test module preferably also includes a hammer control unit, which preferably includes a first wire, a second wire, a third wire, and a power supply. The first wire is arranged on the first guide rail, the second wire is arranged on the second guide rail, and the third wire is arranged on the hammer. The two ends of the third wire are always in contact with the first wire and the second wire during the movement of the hammer. The first wire and the second wire are respectively connected to the positive and negative terminals of the power supply. The first wire in the first guide rail, the third wire in the hammer, the second wire in the second guide rail, and the power supply form a loop, generating a magnetic field between the first guide rail and the second guide rail. The hammer moves toward the sample placement table under the action of the Ampere force. This preferred solution changes the impact energy by changing the current, without the need to replace the hammer, making operation easier.

[0037] A switch may also be provided in the circuit to control the opening and closing of the circuit.

[0038] The type of the power supply is conventional in the art, such as a constant current power supply.

[0039] Preferably, the first wire is embedded in the lower surface of the first guide rail, the second wire is embedded in the upper surface of the second guide rail, the third wire is arranged inside the hammer and the two ends of the third wire pass through the upper and lower surfaces of the hammer, and the two ends of the third wire are in contact with the first wire and the second wire respectively.

[0040] The first conductive line, the second conductive line, and the third conductive line may all be copper wires.

[0041] Preferably, a limiter is provided on the first guide rail and / or the second guide rail to limit the rebound of the hammer. The shape of the limiter is preferably conventional in the art, such as a raised block. The limiter is preferably provided at the end of the first guide rail and / or the second guide rail.

[0042] In the present invention, the test module may further include a sample placement platform located between the first guide rail and the second guide rail, wherein the sample placement platform may be a cylindrical platform with an axis along a horizontal direction and located at the center of the gap between the first guide rail and the second guide rail.

[0043] In the present invention, the hammer is preferably provided with a slot, the width of which matches the width of the first guide rail or the width of the second guide rail, and the first and second guide rails can be snapped into the slot. This allows the hammer to move stably along the first and second guide rails. Furthermore, when the hammer control unit is provided, it can ensure that both ends of the third wire remain in contact with the first and second wires during the movement of the hammer. The width of the slot refers to the slot's dimension perpendicular to the direction of movement of the hammer.

[0044] In the present invention, the test module preferably further includes a speed sensor for monitoring the movement speed of the hammer. By providing the speed sensor to monitor the hammer's actual speed, the difference between the theoretical speed and the measured speed is used to calculate the kinetic energy lost by the hammer due to friction in the guide rail, thereby correcting the impact energy based on frictional heat.

[0045] In the present invention, the test module preferably also includes a controller, which is connected to the power supply and the speed sensor. The controller is used to control the on / off of the power supply and process the data transmitted by the speed sensor, thereby improving the automatic adjustability of the entire hammer control unit.

[0046] When the base is provided, one end of the first guide rail and one end of the second guide rail are both connected to the base.

[0047] In a preferred embodiment of the present invention, the test module includes a guide rail, a hammer, a hammer control unit, a sample placement table and a speed sensor, the guide rail includes a first guide rail and a second guide rail arranged side by side in a horizontal direction, the hammer is provided with a slot, the width of the slot matches the width of the first guide rail or the width of the second guide rail, and the hammer is clamped between the first guide rail and the second guide rail; the sample placement table is located between the first guide rail and the second guide rail; the hammer control unit includes a first wire, a second wire, a third wire and a power supply, the first wire is provided on the first guide rail, the second wire is provided on the second guide rail, the third wire is provided on the hammer, the two ends of the third wire are respectively in contact with the first wire and the second wire, and the first wire and the second wire are respectively connected to the positive and negative ends of the power supply.

[0048] The utility model also provides an impact sensitivity testing device, which includes: a main operating box and a testing module; the main operating box is a sealed box, and a first air inlet and a first air outlet are provided on the main operating box; the testing module is arranged in the main operating box;

[0049] The test module includes a guide rail and a hammer. The guide rail is arranged in the main operation box along the horizontal direction. The hammer is arranged on the guide rail, and the hammer can move along the guide rail to hit the sample to be tested.

[0050] In the present invention, the main operating box is preferably the main operating box in the aforementioned impact sensitivity testing device.

[0051] In the present invention, the test module is preferably the test module in the aforementioned impact sensitivity test device.

[0052] Among them, the method for fixing the first guide rail and the second guide rail in the main operation box can be a conventional method in the art. Preferably, one end of the first guide rail is connected to the side wall of the main operation box, and one end of the second guide rail is connected to the side wall of the main operation box, thereby realizing the fixation of the first guide rail and the second guide rail in the main operation box. More preferably, a first connecting column is provided between the upper surface of the first guide rail and the top of the main operation box, and a second connecting column is provided between the lower surface of the second guide rail and the bottom of the main operation box, and the stability of the second guide rail is improved by providing the first connecting column and the second connecting column.

[0053] In the present invention, the test module may further include a sample placement platform, which is disposed on a side of the main operating box and located between the first guide rail and the second guide rail. The sample placement platform may be a cylindrical platform, with its axis extending horizontally and located at the center of the gap between the first guide rail and the second guide rail.

[0054] In the present invention, the test module preferably further includes a speed sensor disposed within the main operating box and configured to monitor the movement speed of the hammer. By providing the speed sensor to monitor the hammer's actual speed, the difference between the theoretical speed and the measured speed is used to calculate the kinetic energy lost by the hammer due to friction in the guide rail, thereby correcting the impact energy based on frictional heat.

[0055] In the present invention, the test module preferably further includes a base, which is arranged on the side wall of the main operation box, and the sample placement table is arranged on the base. The base facilitates the disassembly and assembly of the sample placement table.

[0056] In the present invention, the impact sensitivity testing device preferably also includes one or more of a sample preparation module, a cleaning module and a recording module. The sample preparation module, the cleaning module and the recording module are preferably the sample preparation module, the cleaning module and the recording module in the aforementioned impact sensitivity testing device.

[0057] In the present invention, special working conditions generally refer to high-purity atmosphere environments, water-avoiding environments, or oxygen-avoiding environments.

[0058] The positive progress effect of this utility model is:

[0059] (1) The impact sensitivity test device of the present invention can accurately test the impact sensitivity of a sample in a desired gas atmosphere, solving the problem that existing test methods cannot test water-sensitive and oxygen-sensitive materials and cannot test in a specific gas atmosphere.

[0060] (2) The impact sensitivity test device of the present invention monitors the actual speed of the hammer by setting a speed sensor. Based on the difference between the theoretical speed and the measured speed, the kinetic energy lost by the hammer due to friction in the guide rail is calculated. Then, the impact energy is corrected by correcting the friction heat, making the test result more accurate.

[0061] (3) The impact sensitivity testing device of the present invention can change the impact energy by changing the current without replacing the impact hammer, which is simpler to operate than the existing testing method.

[0062] (4) The impact sensitivity test device of the present invention has a light and compact structure, which overcomes the shortcomings of existing impact sensitivity test devices that are large in size, heavy in weight, and difficult to operate in a conventional glove box. BRIEF DESCRIPTION OF THE DRAWINGS

[0063] Figure 1 This is a schematic diagram of the overall structure of the impact sensitivity testing device described in Example 1.

[0064] Figure 2 This is a schematic structural diagram of the connection between the test module and the hammer control unit described in Example 1.

[0065] Figure 3 This is a schematic diagram of the structure of the hammer and guide rail described in Example 1.

[0066] Figure 4 This is a circuit diagram of the force and hammer control unit of the test module described in Example 1.

[0067] Description of Reference Numerals

[0068] Main operation box 1

[0069] Isolation Board 101

[0070] First chamber 102

[0071] Second chamber 103

[0072] First isolation door 104

[0073] Wire hole 105

[0074] Second isolation door 106

[0075] Buffer operation box 2

[0076] The third isolation door 201

[0077] Test Module 3

[0078] First guide rail 301

[0079] Card slot 3031

[0080] Second guide rail 302

[0081] Hammer 303

[0082] Base 304

[0083] Sample placement table 305

[0084] First connecting column 306

[0085] Second connecting column 307

[0086] Limiter 308

[0087] Speed ​​sensor 4

[0088] Hammer control unit 5

[0089] First wire 501

[0090] Second wire 502

[0091] The third wire 503

[0092] Power Supply 504

[0093] Switch 505

[0094] Controller 506

[0095] Sample preparation module 6

[0096] Sample preparation table 601

[0097] Sample Preparation Tool Box 602

[0098] Sample storage box 603

[0099] Cleaning module 7

[0100] Nozzle 701

[0101] Waste storage box 702

[0102] Recording Module 8

[0103] Camera 801

[0104] Data Recording Controller 802

[0105] Display 803

[0106] Tee 9

[0107] Stop valve 10

[0108] Gas composition detector 11 DETAILED DESCRIPTION

[0109] The present invention is further described below by way of examples, but the present invention is not limited to the scope of the examples.

[0110] It should be noted that the terms "upper", "lower", "inside", "outside", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the equipment or components referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. It should also be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection, or it can be indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

[0111] In the embodiments of the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediary. Furthermore, a first feature being "above," "above," or "above" a second feature may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. A first feature being "below" or "below" a second feature may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0112] Example 1

[0113] This embodiment discloses an impact sensitivity testing device, which includes: a main operation box 1, a buffer operation box 2, a testing module 3, a speed sensor 4, a hammer control unit 5, a sample preparation module 6, a cleaning module 7 and a recording module 8.

[0114] The main operation box 1 is a glove box, which is provided with multiple openings, each of which is fixed with long-sleeved gloves. The main operation box 1 is provided with a first air inlet and a first air outlet, and the atmosphere in the main operation box 1 is replaced through the first air inlet and the first air outlet.

[0115] An isolation plate 101 is provided in the main operation box 1, which divides the main operation box 1 into a first chamber 102 and a second chamber 103 that are independent of each other. A first isolation door 104 that can be opened and closed is provided on the isolation plate 101. The test module 3 is provided in the first chamber 102, and the sample preparation module 6 is provided in the second chamber 103. The prepared sample is transferred to the first chamber 102 through the first isolation door 104. A gas component detector 11 is provided on the second chamber 103 to detect the gas components in the second chamber 103. A wire hole 105 is provided on the main operation box 1 for wiring.

[0116] The test module 3 includes a first guide rail 301, a second guide rail 302, a hammer 303, a base 304, a sample placement platform 305, a first connecting post 306, and a second connecting post 307. The first guide rail 301 and the second guide rail 302 are arranged horizontally in parallel, with the hammer 303 sandwiched between the first and second guide rails 301 and 302. The sample placement platform 305 is provided on the base 304. The base 304 is mounted on the side wall of the main operating box 1, and the sample placement platform 305 is mounted on the base 304. The sample placement platform 305 is a cylindrical platform with its axis horizontally centered in the gap between the first and second guide rails 301 and 302. One end of the first guide rail 301 and one end of the second guide rail 302 are both connected to the base 304, the two ends of the first connecting column 306 are respectively connected to the upper surface of the first guide rail 301 and the top of the main operation box 1, and the two ends of the second connecting column 307 are respectively connected to the lower surface of the second guide rail 302 and the bottom of the main operation box 1.

[0117] A slot 3031 is provided on the upper and lower surfaces of the hammer 303 . The width of the slot 3031 matches the width of the first guide rail 301 and the width of the second guide rail 302 . The first guide rail 301 and the second guide rail 302 can be inserted into the slot 3031 .

[0118] A limiter 308 is provided on each of the first guide rail 301 and the second guide rail 302 . The limiter 308 is in the shape of a protruding block and is provided at the ends of the first guide rail 301 and the second guide rail 302 .

[0119] The speed sensor 4 is fixed on the base 304 and is used to monitor the moving speed of the hammer 303 .

[0120] The hammer control module 5 includes a first wire 501, a second wire 502, a third wire 503, a power supply 504, a switch 505 and a controller 506. The first wire 501 is embedded in the center of the lower surface of the first guide rail 301, the second wire 502 is embedded in the center of the upper surface of the second guide rail 302, and the third wire 503 is arranged inside the hammer 303, and the two ends of the third wire 503 pass through the center of the upper surface and the center of the lower surface of the hammer 303. The two ends of the third wire 503 correspond to the positions of the first wire 501 and the second wire 502 respectively, and the two ends of the third wire 503 are always in contact with the first wire 501 and the second wire 502 during the movement of the hammer 303. A first wire 501 and a second wire 502 are connected to the positive and negative terminals of a constant-current power supply 504, respectively. A switch 505 is provided on the connection between the second wire 502 and the power supply 504 to control the circuit's opening and closing. The power supply 504 and switch 505 are housed in a controller 506, which includes a button for turning the switch 505 on and off. The controller 506 processes data transmitted by the velocity sensor 4 and adjusts the current to compensate for frictional heat. The velocity sensor 4 is connected to the controller 506. The first wire 501 in the first rail 301, the third wire 503 in the hammer 303, the second wire 502 in the second rail 302, and the power supply 504 form a circuit, generating a magnetic field between the first rail 301 and the second rail 302. The hammer 303 moves toward the sample platform under the action of the Ampere force. The first wire 501, the second wire 502, and the third wire 503 are all copper wires.

[0121] The sample preparation module 6 is disposed in the main operation box 1 , and is used to prepare samples to be tested.

[0122] The sample preparation module 6 includes a sample preparation table 601, a sample preparation tool box 602, and a sample storage box 603. The sample preparation table 601 is made of a hard plate material and coated with a corrosion-resistant coating. The sample preparation tool box 602 stores a ceramic mortar, ceramic pestle, ceramic powder funnel, press rod, tweezers, aluminum foil cup, collar, and roller. The sample storage box 603 is used to temporarily store samples transferred to the second chamber 103.

[0123] The buffer operation box 2 is a sealed box equipped with a second air inlet and a second air outlet, through which the atmosphere in the buffer operation box is replaced. One end of the buffer operation box 2 is open, connected to one end of the main operation box 1. The main operation box 1 has a second isolation door 106 located in the area of ​​the open end of the buffer operation box 2. This second isolation door 106 can be opened and closed. The other end of the buffer operation box 2 is equipped with a third isolation door 201 that can be opened and closed for sample injection.

[0124] The first air inlet of the main operating box 1 and the second air inlet of the buffer operating box 2 are connected via a tee 9, the third port of which is connected to the required gas source. Shutoff valves 10 are installed on the pipes connecting the first air inlet of the main operating box 1 and the tee 9, as well as the pipes connecting the second air inlet of the buffer operating box 2 and the tee 9.

[0125] The first air outlet of main control box 1 and the second air outlet of buffer control box 2 are connected via a tee 9, the third port of which is connected to the exhaust gas treatment device and pump. Shutoff valves 10 are installed on the pipes connecting the first air outlet of main control box 1 and the tee 9, as well as the pipes connecting the second air outlet of buffer control box 2 and the tee 9.

[0126] The cleaning module 7 includes a nozzle 701 and a temporary waste storage box 702. The nozzle 701 is an atomizing nozzle and is connected to the side wall of the main operation box 1. The nozzle 701 is connected to the liquid inlet pipe and is located diagonally above the sample placement table 305. The temporary waste storage box 702 is placed in an area of ​​the main operation box 1 away from the sample placement table 305 and is used to store waste after washing.

[0127] Recording module 8 includes a camera 801, a data recording controller 802, and a display 803. Camera 801 is used to record the impact test phenomena, data recording controller 802 is used to record and process the test data, and display 803 is used to assist in observing the test phenomena. Camera 801 is connected to the input end of data recording controller 802, and display 803 is connected to the output end of data recording controller 802. Camera 801, data recording controller 802, and display 803 are all located outside of main operating box 1, with camera 801 located near sample placement table 305.

[0128] Example 2

[0129] The impact sensitivity test device of Example 1 was used to perform an impact test on solid materials in a nitrogen atmosphere. The test method is as follows:

[0130] Step 1: Open the stop valve 10 on the connecting pipe between the first air inlet of the main operation box 1 and the tee 9, and the stop valve 10 on the connecting pipe between the first air outlet of the main operation box 1 and the tee 9, replace the air in the main operation box 1 with nitrogen through vacuum exhaust method, and then close the stop valves 10 at both places.

[0131] Step 2: Make sure the surfaces of the sample container collar and roller are smooth. Place the roller in the collar and ensure it moves smoothly to avoid inaccurate test results due to friction between the test containers during impact.

[0132] The sample to be tested is a solid powder. According to the material characteristics and process requirements, the sample must always be protected by nitrogen during transfer and use, and strictly avoid oxygen and water.

[0133] Step 3: Open the third isolation door 201 and place the sample into the buffer operation box 2, and close the third isolation door 201. Open the stop valve 10 on the connecting pipe between the second air inlet and the tee 9, and the stop valve 10 on the connecting pipe between the second air outlet and the tee 9, and connect the air inlet pipe to the buffer operation box 2. Use nitrogen to replace the air in the buffer operation box 2 through vacuum exhaustion, so that the gas atmosphere in the buffer operation box 2 is consistent with the gas atmosphere of the main operation box 1. After the replacement is completed, close the two stop valves 10. Open the second isolation door 108 and move the sample to the sample storage box 603.

[0134] Step 4: Take out the sample to be tested from the sample storage box 603, transfer it to the sample preparation table 601, and use the sample preparation tool to measure 40mm 3 Transfer the sample to be tested to the assembled collar-roller. It is important to prevent the sample from sticking to the inner wall of the collar during the sample loading process. Prepare six samples per test group. Transfer the prepared sample to the sample placement table 305 and secure it. Ensure that the second isolation door 106 is closed.

[0135] Step 5: Impact Test:

[0136] Step 5.1: Perform a blank test, turn on the power, start the test, observe and record the test phenomena, use the speed sensor 4 to measure the actual moving speed v0 of the hammer, calculate the theoretical speed v1 by formula (1), and then calculate the friction heat E by formula (2). f :

[0137] (1)

[0138] In the above formula: E f represents frictional heat, m represents the mass of the hammer, v0 represents the actual moving speed of the hammer, μ represents the magnetic permeability under the required gas atmosphere, d0 represents the distance of the gap between the first guide rail and the second guide rail, s represents the distance moved by the hammer, a0 represents the diameter of the first wire or the second wire, and I0 represents the current of the blank test.

[0139] After the test is completed, the power supply is disconnected and the tested samples and used test containers are transferred to the waste storage box 702.

[0140] Step 5.2: Perform a formal impact test, set the impact energy to E=50J, and calculate the required current I of the circuit according to Formula 2.

[0141] (2)

[0142] In the above formula: F B represents Ampere force, B represents effective magnetic field strength, I represents current, and E represents impact energy.

[0143] Set the current to I, turn on the power, start the test, and observe and record the test phenomena;

[0144] After the test is completed, the power supply is disconnected. The tested samples and used test containers are transferred to the waste storage box 702;

[0145] Step 5.3: Repeat step 5.2 six times. If all results are negative, the test for this group ends and the sample is not impact sensitive at this energy. If any result is positive, proceed to step 5.4.

[0146] Step 5.4: Gradually reduce the impact energy and repeat steps 5.2 and 5.3 until all the results are negative and the lowest impact energy is measured.

[0147] In the above test, after each test, the nozzle 701 is opened to clean the contaminated area of ​​the equipment with cleaning fluid and wipe. After wiping, the waste is transferred to the waste temporary storage box 702 for temporary storage and removed and disposed of in time after the experiment.

Claims

1. A device for testing impact sensitivity, characterized in that: It includes: a main operation box and a test module. The main operation box is a sealed box. A first air inlet and a first air outlet are provided on the main operation box. The test module is arranged in the main operation box and is used to test the impact sensitivity of the sample to be tested.

2. The impact sensitivity testing device according to claim 1, wherein: The impact sensitivity testing device meets any one of the following conditions: ① The main operation box is a glove box, which is provided with multiple openings, each of which is fixed with a long-sleeved glove; ② An isolation plate is provided in the main operation box, which divides the main operation box into a first chamber and a second chamber that are independent of each other. A first isolation door that can be opened and closed is provided on the isolation plate, and the test module is provided in the first chamber; ③ The impact sensitivity testing device also includes a buffer operation box, which is a sealed box and is provided with a second air inlet and a second air outlet. One end of the buffer operation box is connected to one end of the main operation box. A second isolation door that can be opened and closed is provided at the connection between the buffer operation box and the main operation box. The other end of the buffer operation box is provided with a third isolation door that can be opened and closed. ④ The test module includes a guide rail and a hammer. The guide rail is arranged in the main operation box along the vertical direction. The hammer is arranged on the guide rail, and the hammer can move vertically along the guide rail and then hit the sample to be tested.

3. The impact sensitivity testing device according to claim 1, wherein: The main operation box is a glove box, which is provided with multiple openings, each of which is fixed with long-sleeved gloves, and is provided with a first air inlet and a first air outlet; an isolation plate is provided in the main operation box, which divides the main operation box into a first chamber and a second chamber that are independent of each other, and a first isolation door that can be opened and closed is provided on the isolation plate, the test module is provided in the first chamber, and a sample preparation module is provided in the second chamber, and the sample preparation module is used to prepare samples to be tested; a buffer operation box is connected to the side of the second chamber, and the buffer operation box is a sealed box, and is provided with a second air inlet and a second air outlet, the first air inlet and the second air inlet are connected by a tee, and the first air outlet and the second air outlet are preferably connected by a tee, and a second isolation door that can be opened and closed is provided at the connection between the buffer operation box and the second chamber, and a third isolation door that can be opened and closed is provided at the other end of the buffer operation box.

4. A device for testing impact sensitivity, characterized in that: It includes a test module, which includes a guide rail and a hammer. The guide rail is arranged in a horizontal direction, and the hammer is arranged on the guide rail. The hammer can move horizontally along the guide rail and then hit the sample to be tested.

5. The impact sensitivity testing device according to claim 4, wherein: The guide rails include a first guide rail and a second guide rail arranged in parallel along a horizontal direction, and the hammer is clamped between the first guide rail and the second guide rail.

6. The impact sensitivity testing device according to claim 5, wherein: The impact sensitivity testing device satisfies any one of the following items ① to ③: ① A slot is provided on the hammer, the width of which matches the width of the first guide rail or the width of the second guide rail, and the first guide rail and the second guide rail can be inserted into the slot; ② The test module also includes a hammer control unit, which includes a first wire, a second wire, a third wire, and a power supply, wherein the first wire is disposed on the first guide rail, the second wire is disposed on the second guide rail, and the third wire is disposed on the hammer, with two ends of the third wire respectively contacting the first wire and the second wire, and the first wire and the second wire are respectively connected to the positive and negative terminals of the power supply; ③The testing module also includes a sample placement platform, which is located between the first guide rail and the second guide rail.

7. The impact sensitivity testing device according to claim 4, wherein: The test module further includes a speed sensor, which is used to monitor the moving speed of the hammer.

8. The impact sensitivity testing device according to claim 4, wherein: The test module includes a guide rail, a hammer, a hammer control unit, a sample placement table and a speed sensor. The guide rail includes a first guide rail and a second guide rail arranged side by side in a horizontal direction. A slot is provided on the hammer, and the width of the slot matches the width of the first guide rail or the width of the second guide rail. The hammer is clamped between the first guide rail and the second guide rail; the sample placement table is located between the first guide rail and the second guide rail; the hammer control unit includes a first wire, a second wire, a third wire and a power supply. The first wire is provided on the first guide rail, the second wire is provided on the second guide rail, and the third wire is provided on the hammer. The two ends of the third wire are in contact with the first wire and the second wire respectively, and the first wire and the second wire are respectively connected to the positive and negative ends of the power supply.

9. A device for testing impact sensitivity, characterized in that: It includes: main Operation box and test module; The main operation box is the main operation box according to any one of claims 1 to 3; The test module is the test module according to any one of claims 4 to 8.

10. The impact sensitivity testing device according to claim 9, wherein: The impact sensitivity testing device satisfies any one of the following items ① to ③: ① One end of the first guide rail is connected to the side wall of the main operation box, and one end of the second guide rail is connected to the side wall of the main operation box. A first connecting post is provided between the upper surface of the first guide rail and the top of the main operation box, and a second connecting post is provided between the lower surface of the second guide rail and the bottom of the main operation box. ② The sample placement table is arranged on the side of the main operation box and the sample placement table is located between the first guide rail and the second guide rail; ③ The speed sensor is arranged in the main operation box.

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