A composite explosive micro-atmosphere humid heat aging test device and test method

Abstract

The present invention provides a composite explosive micro-atmosphere humid heat aging test device and test method. A porous partition is arranged in an organic glass container. The porous partition is used to divide the inner cavity of the organic glass container into two spaces, the upper space is used to place the composite explosive sample, and the lower space is used to place the saturated potassium nitrate solution pool and the micro-atmosphere generating pool. The test method steps include: configuring a saturated potassium nitrate solution and placing it in the saturated potassium nitrate solution pool; configuring a reaction solution and placing it in the micro-atmosphere generating pool; placing a watch glass containing the composite explosive sample in the organic glass container; covering the ground organic glass cover body, and conducting an accelerated aging test. During the test, a humidity atmosphere and a micro-atmosphere environment are established simultaneously to achieve accelerated aging testing of composite explosives in complex environments, and provide theoretical support for life evaluation of composite explosives. The present invention has a simple structure, is easy to operate, and has a low cost for the entire device, and can achieve efficient, rapid, and accurate aging tests.

Description

Technical Field

[0001] The invention belongs to the technical field of composite explosive aging test, and in particular relates to a composite explosive micro-atmosphere wet heat aging test device and a test method.

[0002] Background Technology

[0003] During accelerated aging or long-term natural storage, composite explosives will be affected by factors such as temperature, humidity, and micro-atmosphere, and will undergo slow thermal decomposition and binder degradation, causing changes in the storage safety performance of explosives. For example, during storage and accelerated aging, PETN in GI-920 explosives first undergoes thermal decomposition reactions to produce gas products such as NOx, and accelerates the self-acceleration reaction of GI-920 explosives, resulting in a series of performances such as mass, density, and detonation velocity rapidly decreasing, as well as changes in detonation and detonation performance. However, existing accelerated aging test devices are mainly high-temperature accelerated aging and temperature-humidity coupled aging test devices. At present, there is no simple and effective aging test device and method for simulating composite explosives under the coupling of catalytic atmosphere, temperature, and humidity, and it is impossible to simulate the decomposition process of micro-atmosphere catalytic composite explosives and evaluate the corresponding life.

[0004] In addition, when using the existing accelerated aging test equipment and regularly taking samples from the watch glass to test relevant performance, the test chamber needs to be fully opened each time before taking samples, which will cause most of the micro-atmosphere in the test chamber to leak out (that is, destroy the micro-environment in the test chamber). If the same batch of samples needs to be tested again, it will take a long time (up to several hours) to return to the micro-environment state before sampling (the environmental state of the space where the samples are located in the test chamber), or even be impossible to return to the micro-environment state before sampling. Obviously, this is not conducive to continuous aging testing of the same batch of samples. Summary of the invention

[0005] In view of the technical problems mentioned in the background technology, the present invention aims to provide a composite explosive micro-atmosphere humid heat aging test device and test method.

[0006] The technical solution adopted by the present invention is as follows.

[0007] A composite explosive micro-atmosphere humid heat aging test device, characterized in that it includes an organic glass container, a ground organic glass cover is arranged on the top of the organic glass container, a porous partition is arranged in the organic glass container, and the inner cavity of the organic glass container is divided into two spaces, the upper space is used to place the composite explosive sample, and the lower space is used to place the saturated potassium nitrate solution pool and the micro-atmosphere generating pool; a pressure relief valve, a sampling valve, a thermometer for monitoring the inner cavity temperature of the organic glass container, and a pressure gauge for monitoring the inner cavity pressure of the organic glass container are arranged on the organic glass cover. By adopting such a scheme, a humidity atmosphere and a micro-atmosphere environment can be established simultaneously during the test process, and an accelerated aging test of the composite explosive in a complex environment can be realized, providing theoretical support for the life evaluation of the composite explosive.

[0008] For easy operation, the porous partition is placed on the inner wall of the organic glass container or on a boss on the inner wall of the organic glass container.

[0009] In order to reduce the test cost, the organic glass container, the ground organic glass cover and the porous partition adopt an organic glass dryer.

[0010] A composite explosive micro-atmosphere humid heat aging test device comprises an organic glass container, a ground organic glass cover is arranged on the top of the organic glass container, a bearing member is arranged in the organic glass container, a through hole is arranged on the ground organic glass cover and directly above the bearing member, a plug is matched in the through hole, the plug is connected to the bearing member through multiple ropes, thin rods or multiple silk threads, the multiple ropes, multiple thin rods or multiple silk threads are evenly arranged, the bearing member can also match with the through hole, a watch glass for holding composite explosive samples is placed on the top wall of the bearing member, and in any state after the ground organic glass cover is covered, at least the plug or the bearing member is sealed and matched at the through hole (that is, one of the plug and the bearing member is sealed and matched at the through hole); a pool for placing a saturated potassium nitrate solution and a micro-atmosphere generating pool are arranged in the organic glass container; a pressure relief valve, a sampling valve, a thermometer for monitoring the temperature of the organic glass container inner cavity and a pressure gauge for monitoring the pressure of the organic glass container inner cavity are arranged on the organic glass cover. By adopting such a scheme, not only can a humidity atmosphere and a micro-atmosphere environment be established simultaneously during the test, thus realizing accelerated aging testing of composite explosives in complex environments and providing theoretical support for the life assessment of composite explosives, but also the micro-environment inside the plexiglass container will not be damaged basically. Samples can be taken from the watch dish quickly and smoothly without interrupting the test, which facilitates sampling at any time and is conducive to continuous aging tests on the same batch of samples.

[0011] Preferably, the plug body is an inverted tapered silicone plug; the support member is a positive tapered silicone plug; the effective length of the rope or thread is no more than 10 cm; the thread is a stainless steel wire with a diameter of 0.5-1 mm, and the thin rod is a stainless steel thin rod or an engineering plastic thin rod with a diameter of 2-3 mm. Among them, the most promising solution is that the thread is a stainless steel wire with a diameter of 1 mm, or the thin rod is a stainless steel thin rod or an engineering plastic thin rod with a diameter of 2 mm. Such a solution can ensure that the watch glass does not shake or slip during operation. In order to facilitate operation, the multiple ropes, multiple thin rods or multiple threads are all three in number, arranged at 0°, 90° and 180° positions on the same circle, and the space of 180°~360° is for the watch glass to pass horizontally.

[0012] An aging test method using the above composite explosive micro-atmosphere humid heat aging test device comprises the following steps:

[0013] Step 1, preparing a saturated potassium nitrate solution, placing it in a saturated potassium nitrate solution pool and placing it in a plexiglass container;

[0014] Step 2, preparing a reaction solution, placing it in a micro-atmosphere generating pool and placing it in a plexiglass container;

[0015] Step 3, placing the composite explosive sample in an oven at 60° C. for 2 hours, passing it through a 20-mesh sieve and spreading it on a watch glass, and placing the watch glass containing the composite explosive sample in a plexiglass container;

[0016] Step 4, cover the ground organic glass cover and carry out accelerated aging test according to the selected test parameters;

[0017] Step 5, take samples regularly and conduct inspection / testing.

[0018] In the present invention, the step of preparing the reaction solution comprises: placing the copper sheet in a 69% nitric acid solution to generate nitrogen dioxide gas through a chemical reaction between the copper sheet and the nitric acid solution; or placing the crystalline silicon in a NaOH solution to generate hydrogen gas through a chemical reaction between the copper sheet and the nitric acid solution; or measuring an aqueous solution of ammonium hydroxide with a content of 25% to 28% (mass percentage) to provide an ammonia atmosphere through the escape of ammonia gas; or placing NH 4 l and Ca(OH) 2 Mix and provide an ammonia atmosphere through a chemical reaction between the two.

[0019] In the present invention, the steps of sampling and testing from the watch glass in step 5 are as follows:

[0020] Step 51, quickly lift the plug until the bearing member and the through hole on the ground organic glass cover are in sealing fit, and then release the plug;

[0021] Step 52, removing the watch glass on the top of the carrier (transversely removing it) and taking a sample, or directly taking a sample without removing the watch glass;

[0022] Step 53, placing the watch glass containing the composite explosive sample on the top of the carrier again; the watch glass containing the composite explosive sample referred to here may be the watch glass taken out in step 52, or may be a new watch glass;

[0023] Step 54, press the support member or the plug body vertically downward, and when the support member completely enters the organic glass container, quickly seal the plug body in the through hole on the organic glass cover body.

[0024] Beneficial effects: During the test, the solution in the saturated potassium nitrate solution pool is used to generate a high-humidity atmosphere and the micro-gas generating pool is used to generate a micro-atmosphere. These atmospheres are in full contact with the composite explosive sample to achieve accelerated aging of the composite explosive under the coupling of multiple factors. During the test, a humidity atmosphere and a micro-atmosphere environment are simultaneously established to achieve accelerated aging testing of the composite explosive under a complex environment, providing theoretical support for the life assessment of the composite explosive. The present invention has a simple structure, is easy to operate, and has a low cost for the entire device, and can achieve efficient, rapid, and accurate aging tests. More importantly, the scheme of the present invention will basically not damage the microenvironment in the organic glass container, and can quickly and smoothly take samples from the watch glass without interrupting the test, which is convenient for flexible sampling at any time and is conducive to continuous aging tests of the same batch of samples. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the cross-sectional structure of the composite explosive micro-atmosphere humid heat aging test device in the embodiment;

[0026] Figure 2 It is a schematic diagram of the cross-sectional structure of the composite explosive micro-atmosphere humid heat aging test device in Example 2;

[0027] Figure 3 This is a schematic diagram of the structure of the ground organic glass cover of the composite explosive micro-atmosphere humid heat aging test device in Example 2;

[0028] Figure 4 This is a schematic diagram of the plug body and its connector structure of the composite explosive micro-atmosphere humid heat aging test device in Example 2;

[0029] Figure 5 is the TG-DSC graph of the sample of RBOUL-1 composite explosive after wet heat aging test in Example 3;

[0030] Figure 6 is a TG-DSC graph of the sample after the wet heat aging test of RBOUL-1 composite explosive under ammonia atmosphere in Example 3;

[0031] Figure 7 is a TG-DSC graph of the sample after the wet heat aging test of RBOUL-1 composite explosive in a nitrogen dioxide atmosphere in Example 3;

[0032] Figure 8 This is the infrared absorption spectrum of the sample of RBOUL-1 composite explosive after the wet heat aging test in the micro-atmosphere in Example 3. DETAILED DESCRIPTION

[0033] The present invention will be further described below in conjunction with the embodiments and drawings.

[0034] Example 1

[0035] A composite explosive micro-atmosphere humid heat aging test device, such as Figure 1 As shown, it includes an organic glass container 1, a ground organic glass cover 2 is arranged on the top of the organic glass container 1, a porous partition 3 is arranged in the organic glass container 1, the holes on the porous partition 3 are evenly arranged, and the inner cavity of the organic glass container 1 is divided into two spaces, the upper space is used to place the composite explosive sample 9, and the composite explosive sample 9 is placed in a watch glass 10, and the lower space is used to place a saturated potassium nitrate solution pool 4 and a micro-atmosphere generating pool 5; a pressure relief valve 8, a sampling valve 11, a thermometer 7 for monitoring the inner cavity temperature of the organic glass container 1, and a pressure gauge 6 for monitoring the inner cavity pressure of the organic glass container 1 are arranged on the organic glass cover 2. Among them, the porous partition 3 is placed on the inner wall of the organic glass container 1. The organic glass container 1, the ground organic glass cover 2 and the porous partition 3 use an organic glass dryer.

[0036] Example 2

[0037] A composite explosive micro-atmosphere humid heat aging test device, such as Figures 2 to 4As shown, a composite explosive micro-atmosphere humid heat aging test device comprises an organic glass container 1, a ground organic glass cover 2 is arranged on the top of the organic glass container 1, a bearing member 14 is arranged in the organic glass container 1, a through hole is arranged on the ground organic glass cover 2 and directly above the bearing member 14, a plug body 12 is matched in the through hole, the plug body 12 is connected to the bearing member 14 through three thin rods 13, the thin rods 13 are evenly arranged, the bearing member 14 can also match with the through hole, a watch glass 10 for holding a composite explosive sample 9 is placed on the top wall of the bearing member 14, and in any state after the ground organic glass cover 2 is covered, at least the plug body 12 or the bearing member 14 is sealed and matched at the through hole; a pool 4 for placing a saturated potassium nitrate solution and a micro-atmosphere generating pool 5 are arranged in the organic glass container 1; a pressure relief valve 8, a sampling valve 11, a thermometer 7 for monitoring the inner cavity temperature of the organic glass container 1 and a pressure gauge 6 for monitoring the inner cavity pressure of the organic glass container 1 are arranged on the organic glass cover 2. The plug body 12 is an inverted conical silicone plug, a gripping portion 15 is provided on the upper portion of the plug body 12, and the bearing member 14 is a positive conical silicone plug; the effective length of the thin rod 13 (excluding the installation joint) is 8 cm, and the thin rod 13 is a stainless steel wire with a diameter of 1 mm. Figure 4 As shown, three thin rods 13 are arranged at 0°, 90° and 180° positions on the same circle (the outer diameter of the circle is not greater than the aperture of the through hole), and the space from 180° to 360° is for the watch glass 10 to pass horizontally.

[0038] During use, when it is necessary to take samples from the watch glass 10 for testing, the operating steps are as follows: quickly lift the plug 12 until the supporting member 14 is in a sealed fit with the through hole on the ground organic glass cover 2, then release the plug 12 when it stops (at this time, the supporting member 14 is tightly fitted in the through hole); remove the watch glass 10 on the top of the supporting member 14 and take samples; again place the watch glass 10 containing the composite explosive sample 9 on the top of the supporting member 14; press the plug 12 vertically downward, and when the supporting member 14 is completely inserted into the organic glass container 1, quickly seal the plug 12 in the through hole on the organic glass cover 2 (at this time, the plug 12 is tightly fitted in the through hole).

[0039] Example 3

[0040] An aging test method using the composite explosive micro-atmosphere humid heat aging test device in Example 1, comprising the following steps:

[0041] Step 1, preparing a saturated potassium nitrate solution, placing it in a saturated potassium nitrate solution pool 4 and placing it in a plexiglass container 1;

[0042] Step 2, preparing a reaction solution and placing it in a micro-atmosphere generating pool 5 and placing it in an organic glass container 1; the steps of preparing the reaction solution include: placing a copper sheet in a 69% nitric acid solution to generate nitrogen dioxide gas through a chemical reaction between the two; or placing crystalline silicon in a NaOH solution to generate hydrogen through a chemical reaction between the two; or measuring an ammonium hydroxide aqueous solution with a content of 25%-28% to provide an ammonia atmosphere by escaping ammonia; or placing NH 4 l and Ca(OH) 2 Mixing, and providing an ammonia atmosphere through a chemical reaction between the two;

[0043] Step 3, placing the composite explosive sample in an oven at 60° C. for 2 hours, passing it through a 20-mesh sieve and spreading it on a watch glass 10, and placing the watch glass 10 containing the composite explosive sample in a plexiglass container 1;

[0044] Step 4, cover the ground organic glass cover 2, and carry out accelerated aging test according to the selected test parameters;

[0045] Step 5: Take samples regularly and conduct testing.

[0046] In this embodiment, the following three operation schemes may be used.

[0047] Operation plan 1:

[0048] Place 130 g of potassium nitrate in a 250 ml beaker, add 100 ml of water, shake until it can no longer dissolve, and prepare a saturated potassium nitrate solution, which is then placed under the porous partition 3;

[0049] 20 g of copper sheet (chemically pure, Shanghai Sinopharm) was placed in 69% nitric acid solution (Sinopharm Chemical Reagent Co., Ltd.) and the chemical reaction between the two (Cu + HNO 3 → Cu(NO 3 ) 2 + 2H 2 O + 2NO 2 ) produces nitrogen dioxide gas,

[0050] Nitrogen oxide gases, such as N 2 O 4 , it and NO 2 Maintaining chemical balance.

[0051] The composite propellant sample is a powder sample (in another scheme, in order to analyze the influence of atmosphere and humidity on the surface and interior of the grain column and explore the penetration effect of the micro-atmosphere, a columnar sample can also be used). After being dried in an oven at 60°C for 2 hours, it is passed through a 20-mesh sieve, spread flat on a surface dish, and placed on a porous partition 3;

[0052] The mouth of the dryer is coated with vaseline and covered with a ground organic glass cover 2, and the dryer is placed in a constant temperature oven for accelerated aging, the temperature can be a conventional 71°C or a higher accelerated aging temperature;

[0053] During the aging process, an atmosphere sample can be extracted from the gas sampling valve 11, and a smoke tester can be used to detect the specific gas composition and content in the atmosphere; during the aging process, samples can be taken from the watch glass 10 regularly to test related properties, including but not limited to composition detection, content detection, and thermal performance detection; wherein, composition detection can use X-ray diffraction (XRD) to facilitate the determination of changes in the crystal structure, composition, and morphology of the material, and can also be qualitatively analyzed by infrared absorption spectroscopy; the content detection of the aged sample can be measured by liquid chromatography, and specifically, GJB770B-2005 method 218.1 can be referred to for testing content changes. For the new components generated in the aged sample, their types can be determined by liquid chromatography-mass spectrometry; the thermal properties and reactivity of the sample can be tested by synchronous thermal analysis technology (TG / DSC) to obtain the melting point, initial decomposition temperature, maximum decomposition temperature, maximum weight loss and other related properties of the sample, thereby evaluating the performance degradation of the sample.

[0054] Operation plan 2: Prepare 0.1 mol / L NaOH standard solution. Use a small beaker to weigh 120 g of solid NaOH on a balance, add 100 mL of water, and shake until dissolved into a saturated solution. Pipette 5.6 mL of the upper clear solution into 1000 mL of distilled water and shake well to make a NaOH solution. Place 20 g of crystalline silicon (chemically pure, Shanghai Guoyao) in the NaOH solution to generate H through the chemical reaction between the two. 2 Gas, in order to accelerate the reaction, the reaction beaker can be heated to accelerate the reaction; the performance test during the aging process is the same as operation plan 1.

[0055] Operation Scheme 3: The ammonia atmosphere is prepared by volatilizing ammonia water. 100 mL of an aqueous solution of ammonium hydroxide with a content of 25%-28% (analytical grade, Sinopharm Chemical Reagent Co., Ltd.) is measured with a measuring cylinder. Ammonia water is volatile and releases ammonia gas. The released ammonia gas provides an ammonia atmosphere for the system. The performance test during the aging process is the same as that in Example 1.

[0056] Aging analysis: After the RBOUL-1 composite explosive has undergone operation scheme 1 and operation scheme 3, its decomposition TGDSC is as follows: Figure 5 , Figure 6 and Figure 7As shown in the figure, the experiment was carried out in a nitrogen atmosphere with a gas flow rate of 20 mL / min. The sample was heated from 30°C to 450°C at a heating rate of 10 K / min. By comparing the test results, it can be seen that humidity has little effect on composite explosives, but the effects of ammonia atmosphere and nitrogen dioxide gas on composite explosives are the most significant. After aging, ammonium perchlorate in the composite explosive generates ammonium nitrate. This phenomenon is particularly obvious in ammonia atmosphere. It can be seen that ammonia atmosphere plays a significant catalytic role in the aging of propellants. This result is also obtained from the infrared spectrum ( Figure 8 )’s confirmation.

[0057] Example 4

[0058] An aging test method using the composite explosive micro-atmosphere humid heat aging test device in Example 2, comprising the following steps:

[0059] Step 1, preparing a saturated potassium nitrate solution, placing it in a saturated potassium nitrate solution pool 4 and placing it in a plexiglass container 1;

[0060] Step 2, preparing a reaction solution and placing it in a micro-atmosphere generating pool 5 and placing it in an organic glass container 1; the steps of preparing the reaction solution include: placing a copper sheet in a 69% nitric acid solution to generate nitrogen dioxide gas through a chemical reaction between the two; or placing crystalline silicon in a NaOH solution to generate hydrogen through a chemical reaction between the two; or measuring an ammonium hydroxide aqueous solution with a content of 25%-28% to provide an ammonia atmosphere by escaping ammonia; or placing NH 4 l and Ca(OH) 2 Mixing, and providing an ammonia atmosphere through a chemical reaction between the two;

[0061] Step 3, placing the composite explosive sample in an oven at 60° C. for 2 hours, passing it through a 20-mesh sieve and spreading it on a watch glass 10, and placing the watch glass 10 containing the composite explosive sample in a plexiglass container 1;

[0062] Step 4, cover the ground organic glass cover 2, and carry out accelerated aging test according to the selected test parameters;

[0063] Step 5, regularly sampling and testing; wherein the steps of sampling and testing from the watch glass are as follows:

[0064] Step 51, quickly lift the plug 12 until the bearing member 14 and the through hole on the ground organic glass cover 2 are in sealing cooperation, and then release the plug 12;

[0065] Step 52, remove the watch glass 10 on the top of the carrier 14 (transversely), and take a sample;

[0066] Step 53, placing the watch glass 10 containing the composite explosive sample 9 on the top of the carrier 14 again;

[0067] Step 54 , press the support member 14 or the plug body downward vertically, and when the support member 14 completely enters the organic glass container 1 , quickly seal the plug body 12 in the through hole on the organic glass cover body 2 .

[0068] The advantages of this embodiment include: simple and ingenious structure, low device cost, easy operation, especially without removing the ground organic glass cover, samples can be smoothly taken from the watch glass, and the microenvironment in the organic glass container will not be damaged during the sampling process. Samples can be quickly and smoothly taken from the watch glass without interrupting the test, which is convenient for flexible sampling at any time and is conducive to continuous aging tests of the same batch of samples.

[0069] During the test, a high-humidity atmosphere is generated by the solution in a saturated potassium nitrate solution pool and a micro-atmosphere is generated by a micro-gas generating pool. These atmospheres are in full contact with the composite explosive sample to achieve accelerated aging of the composite explosive under the coupling of multiple factors. During the test, a humidity atmosphere and a micro-atmosphere environment are simultaneously established to achieve accelerated aging testing of the composite explosive in a complex environment, providing theoretical support for life evaluation of the composite explosive. The present invention has a simple structure, is easy to operate, and has a low cost for the entire device, and can achieve efficient, rapid, and accurate aging tests.

Claims

1. A composite explosive micro-atmosphere humid heat aging test device, Features: The organic glass container (1) comprises an organic glass container (1), wherein a ground organic glass cover (2) is arranged on the top of the organic glass container (1), and a porous partition (3) is arranged inside the organic glass container (1). The porous partition (3) is used to divide the inner cavity of the organic glass container (1) into two spaces, an upper space and an lower space. The upper space is used to place a composite explosive sample (9), and the lower space is used to place a saturated potassium nitrate solution pool (4) and a micro-atmosphere generating pool (5); a pressure relief valve (8), a sampling valve (11), a thermometer (7) for monitoring the inner cavity temperature of the organic glass container (1), and a pressure gauge (6) for monitoring the inner cavity pressure of the organic glass container (1) are arranged on the organic glass cover (2).

2. The composite explosive micro-atmosphere humid heat aging test device according to claim 1, Features: The porous partition (3) is placed on the inner wall of the organic glass container (1) or on a boss on the inner wall of the organic glass container (1).

3. The composite explosive micro-atmosphere humid heat aging test device according to claim 2, Features: The organic glass container (1), the ground organic glass cover (2) and the porous partition (3) adopt an organic glass dryer.

4. A composite explosive micro-atmosphere humid heat aging test device, Features: The organic glass container (1) comprises an organic glass container (1), wherein a ground organic glass cover (2) is arranged on the top of the organic glass container (1), a carrier (14) is arranged in the organic glass container (1), a through hole is arranged on the ground organic glass cover (2) and directly above the carrier (14), a plug (12) is matched in the through hole, the plug (12) is connected to the carrier (14) through a plurality of ropes or a plurality of silk threads (13), the plurality of ropes or a plurality of silk threads (13) are evenly arranged, the carrier (14) can also be matched with the through hole, and a material for holding A watch glass (10) for composite explosive samples (9) is provided, and in any state after the ground-joint organic glass cover (2) is covered, at least the plug (12) or the bearing member (14) is sealed and fitted at the through hole; a pool (4) for placing a saturated potassium nitrate solution and a micro-atmosphere generating pool (5) are provided in the organic glass container (1); a pressure relief valve (8), a sampling valve (11), a thermometer (7) for monitoring the inner cavity temperature of the organic glass container (1), and a pressure gauge (6) for monitoring the inner cavity pressure of the organic glass container (1) are provided on the organic glass cover (2).

5. The composite explosive micro-atmosphere humid heat aging test device according to claim 4, Features: The plug body (12) is an inverted conical silicone plug; the bearing member (14) is a positive conical silicone plug; the effective length of the rope, thin rod or silk thread (13) is no more than 10 cm; the silk thread (13) is a stainless steel wire with a diameter of 0.5-1 mm.

6. An aging test method using the composite explosive micro-atmosphere humid heat aging test device according to any one of claims 1 to 5, It is characterized in that the steps include: Step 1, placing the prepared saturated potassium nitrate solution in a saturated potassium nitrate solution pool (4) and placing it in a plexiglass container (1); Step 2, placing the prepared reaction solution in a micro-atmosphere generating pool (5) and placing it in a plexiglass container (1); Step 3, placing the composite explosive sample (9) in an oven at 60° C. for 2 hours, passing through a 20-mesh sieve and spreading it on a watch glass (10), and placing the watch glass (10) containing the composite explosive sample (9) in a plexiglass container (1); Step 4, cover the ground organic glass cover (2), and carry out accelerated aging test according to the selected test parameters; Step 5: Take samples regularly and conduct testing.

7. The aging test method according to claim 6, It is characterized in that The steps of preparing the reaction solution include: placing the copper sheet in a 69% nitric acid solution to generate nitrogen dioxide gas through a chemical reaction between the two; or placing the crystalline silicon in a NaOH solution to generate hydrogen through a chemical reaction between the two; or measuring an aqueous solution of ammonium hydroxide with a content of 25% to 28% to provide an ammonia atmosphere through the escape of ammonia; or placing NH 4 l and Ca(OH) 2 Mix and provide an ammonia atmosphere through a chemical reaction between the two.

8. The aging test method according to claim 7, It is characterized in that In step 5, the steps for sampling and testing from the watch glass are as follows: Step 51, quickly lift the plug body (12) until the bearing member (14) and the through hole on the ground organic glass cover (2) are in sealing engagement, and then release the plug body (12); Step 52, removing the watch glass (10) from the top of the carrier (14) and taking a sample; Step 53, placing the watch glass (10) containing the composite explosive sample (9) on the top of the carrier (14) again; Step 54, press the carrier (14) vertically downward, and when the carrier (14) completely enters the organic glass container (1), quickly seal the plug (12) in the through hole on the organic glass cover (2).

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