CN114518439B - Sample cell for testing vacuum stability of explosives and powders and test method - Google Patents
Sample cell for testing vacuum stability of explosives and powders and test method Download PDFInfo
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- CN114518439B CN114518439B CN202210087424.0A CN202210087424A CN114518439B CN 114518439 B CN114518439 B CN 114518439B CN 202210087424 A CN202210087424 A CN 202210087424A CN 114518439 B CN114518439 B CN 114518439B
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- 239000002360 explosive Substances 0.000 title claims abstract description 69
- 239000000843 powder Substances 0.000 title claims abstract description 22
- 238000012360 testing method Methods 0.000 title claims abstract description 11
- 238000010998 test method Methods 0.000 title claims abstract description 10
- 238000004880 explosion Methods 0.000 claims abstract description 23
- 238000013112 stability test Methods 0.000 claims abstract description 9
- 238000000605 extraction Methods 0.000 claims abstract 2
- 238000003825 pressing Methods 0.000 claims description 22
- 238000000034 method Methods 0.000 claims description 7
- 238000005086 pumping Methods 0.000 claims description 5
- 230000006835 compression Effects 0.000 claims description 4
- 238000007906 compression Methods 0.000 claims description 4
- 238000005457 optimization Methods 0.000 description 8
- 230000001066 destructive effect Effects 0.000 description 6
- 238000005422 blasting Methods 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000872 buffer Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/22—Fuels; Explosives
- G01N33/227—Explosives, e.g. combustive properties thereof
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
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- Food Science & Technology (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention relates to the technical field of testing devices, in particular to a sample cell for a vacuum stability test of explosives and powders and a test method, which comprises a base, wherein a cross box is fixedly connected to the base, an adjusting mechanism is connected to the inside of the cross box, the adjusting mechanism comprises a piston, a fixed sleeve, a sliding block, a spring, air holes, sliding grooves and sliding holes, four pistons are connected to the inner wall of the cross box in a sliding manner, four fixed sleeves are fixedly connected to the inner wall of the cross box, sliding blocks are connected to the four fixed sleeves in a sliding manner, the springs are fixedly connected between the four sliding blocks and the four pistons, four supporting columns are fixedly connected to the base, a top plate is fixedly connected to the top ends of the four supporting columns together, a driving mechanism is connected to the top plate, the driving mechanism comprises an air pump and an air extraction tube, and a placing mechanism is arranged at the bottom of the cross box, so that the vacuum stability test can be carried out on the explosives and powders of the explosion can be buffered when the explosives and powders are exploded.
Description
Technical Field
The invention relates to a sample cell, in particular to a sample cell for a vacuum stability test of explosives and powders and a test method, and belongs to the technical field of test devices.
Background
The explosives and powders refer to explosives, which are products with explosion effects by mixing some inflammable and explosive chemicals in proper proportion, are generally used in the blasting industry and field, and are generally used for blasting operations, such as blasting demolition of buildings, or explosion exploitation of mines, etc.
The safety of the explosives and powders is one of the important properties, such as vacuum stability, i.e. the stability of the explosives and powders under low pressure or vacuum conditions, and the vacuum stability needs to be tested after the manufacturing of the explosives and powders to determine whether the explosives and powders are suitable for storage in the environment of low pressure or vacuum conditions, and the explosive power of the explosives and powders is high, so that a device for facilitating the vacuum stability test of the explosives and powders is needed.
Disclosure of Invention
The invention aims to solve the problems and provide a sample cell and a test method for testing the vacuum stability of explosives and powders, which can test the vacuum stability of the explosives and powders and buffer the explosion power when the explosives and powders are exploded.
The invention discloses a sample pool for a vacuum stability test of explosives and powders and a test method, which comprises a base, wherein a cross box is fixedly connected to the base, an adjusting mechanism is connected to the inside of the cross box, the adjusting mechanism comprises a piston, a fixing sleeve, a sliding block, a spring, air holes, sliding grooves and sliding holes, four pistons are connected to the inner wall of the cross box in a sliding manner, four fixing sleeves are fixedly connected to the inner wall of the cross box, sliding blocks are connected to the four fixing sleeves in a sliding manner, the spring is fixedly connected between the four sliding blocks and the four pistons, four air holes are formed in the cross box, the sliding grooves are formed in the tops of the four sliding blocks, four supporting columns are connected to the base in a corresponding manner, a top plate is fixedly connected to the top ends of the four supporting columns, a driving mechanism is connected to the top plate, the driving mechanism comprises an air pump and an air pumping pipe, the air pump is arranged at the top of the top plate, the air pump is fixedly connected to the top plate, the air pumping pipe is arranged at the bottom of the cross box, and the air pumping mechanism is arranged at the bottom of the cross box.
Preferably, the placement mechanism comprises a threaded column and a placement groove, the bottom of the cross box is connected with the threaded column in a threaded manner, and the placement groove is formed in the top end of the threaded column.
Preferably, the placing mechanism further comprises a rubber ring and a chassis, the bottom of the threaded column is fixedly connected with the chassis, and the rubber ring is arranged between the chassis and the threaded column.
Preferably, the driving mechanism further comprises a pressing plate and pressing rods, the pressing rods are connected to the inner portions of the four sliding grooves in a sliding mode, and the pressing plates are fixedly connected to the tops of the four pressing rods together.
Preferably, the driving mechanism further comprises a sliding sleeve and a sliding rod, the top of the pressing plate is fixedly connected with the sliding rod, the top plate is fixedly connected with the sliding sleeve, and the sliding rod is slidably connected to the inside of the sliding sleeve.
Preferably, the driving mechanism further comprises a motor and a screw rod, the top of the top plate is fixedly connected with the motor, the screw rod is movably connected to the motor, and the screw rod is in threaded connection with the slide rod.
Preferably, the driving mechanism further comprises a top hole, the top hole is arranged on the top plate, and the exhaust tube is located in the top hole.
Preferably, the cross section of spout is right trapezoid, the bottom of spout is the inclined plane, and four depression bars sliding connection respectively in the inside of four slide holes.
Preferably, the test method comprises:
s1: the explosive needing to be subjected to vacuum stability test is placed on the placement mechanism, the placement mechanism is arranged at the bottom of the cross box in a spiral mode, and the placement mechanism can ensure the bottom air tightness of the cross box while placing the explosive into the cross box.
S2: the motor is electrically connected with an external power supply, the motor is started, and the four compression bars are driven to be pressed down after the motor is started, so that the sliding block is moved, the piston is moved, the air pressure in the cross box is firstly reduced, and the air pressure in the cross box is lower than the external air pressure at the moment.
S3: the air pump is electrically connected with an external power supply, and the air pump is started to further pump out the air of the cross box through the exhaust pipe, so that the inside of the cross box is gradually close to a vacuum state, and whether the unstable condition of the explosives or the powders can be observed.
S4: if the explosive is exploded in the process of gradually reducing the air pressure in the cross box, the air pressure can be increased instantaneously in the explosion moment, the pistons can be separated from each other by the increased air pressure, so that enough space is provided for relieving the air pressure increase instantaneously generated by the explosion, the explosion of the explosive can not cause larger impact force on the cross box, the cross box is not easy to be broken, and if the explosive is not exploded, the vacuum stability of the explosive is better.
The beneficial effects of the invention are as follows:
through setting up cross case and piston for can put into the standing groove on the screw thread post with the explosive and the screw thread post is packed into the cross incasement afterwards, and the rubber circle supports the bottom of cross case, make the gas tightness of cross case bottom good, afterwards with motor and air pump and external power source electric connection, start the motor, after the motor starts, drive the screw rod rotation, the rotation of screw rod makes the slide bar slide down in the sliding sleeve, and then drive the clamp plate and move down, drive four depression bars and move down, drive four sliders and slide after four depression bars move down, thereby drive the spring and remove, four pistons remove the back, the atmospheric pressure in the cross case diminishes, be less than outside standard atmospheric pressure, and the spring is also slightly stretched because the piston receives the low pressure attraction, be lower than the atmospheric pressure in the cross case promptly, and the spring is in tensile state.
Through setting up air pump and adjustment mechanism for in order to test the stability of explosive, the air pump is taken out with the air in the cross case gradually after starting the air pump, the atmospheric pressure in the cross case drops gradually, observe whether the explosive can be in the state that atmospheric pressure reduces gradually and is close to the vacuum, if not explode, then indicate that the vacuum stability of explosive is better, if the explosive has taken place the explosion in the in-process that atmospheric pressure descends, the instantaneous high temperature that the explosion produced can make the surplus air in the cross case expand in the twinkling of an eye, the atmospheric pressure can increase by a wide margin in the twinkling of an eye, and far surpass atmospheric pressure, the destructive power of explosive explosion is great at this moment, easily cause the damage to the inner wall of cross case, but because the increase of the twinkling of an eye atmospheric pressure can force the piston to make the spring that is stretched originally resume the shape, consequently, space in the cross case can be increased, make the expanded air can be settled, thereby reduce the destructive power when the explosive explosion, be difficult for damaging the cross case when explosion takes place, whether the explosive can explode, the test also offset the power when part of explosion.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a schematic diagram of a connection structure between a top plate and a driving mechanism according to the present invention;
FIG. 3 is a schematic view of the internal structure of the cross box according to the present invention;
FIG. 4 is a schematic view of a placement mechanism according to the present invention;
FIG. 5 is a schematic view of a connection structure of the adjusting structure of the present invention;
fig. 6 is an enlarged schematic view of the portion a shown in fig. 2 according to the present invention.
In the figure: 1. a base; 2. a cross box; 3. an adjusting mechanism; 31. a piston; 32. a fixed sleeve; 33. a slide block; 34. a spring; 35. ventilation holes; 36. a chute; 37. a slide hole; 4. a placement mechanism; 41. a threaded column; 42. a placement groove; 43. a rubber ring; 44. a chassis; 5. a support post; 6. a top plate; 7. a driving mechanism; 71. an air pump; 72. an exhaust pipe; 73. a top hole; 74. a motor; 75. a sliding sleeve; 76. a slide bar; 77. a screw; 78. a pressing plate; 79. and (5) pressing the rod.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-6, a sample cell for vacuum stability test of explosives and powders and a test method thereof, comprising a base 1, wherein a cross box 2 is fixedly connected to the base 1, an adjusting mechanism 3 is connected to the inside of the cross box 2, the adjusting mechanism 3 comprises a piston 31, a fixing sleeve 32, a sliding block 33, a spring 34, an air hole 35, a sliding groove 36 and a sliding hole 37, four pistons 31 are slidingly connected to the inner wall of the cross box 2, four fixing sleeves 32 are fixedly connected to the inner wall of the cross box 2, sliding blocks 33 are slidingly connected to the four fixing sleeves 32, a spring 34 is fixedly connected between the four sliding blocks 33 and the four pistons 31, four air holes 35 are formed in the cross box 2, sliding grooves 36 are formed in the top of the four sliding blocks 33, four sliding holes 37 correspond to the four sliding grooves 36, four struts 5 are fixedly connected to the base 1, the top ends of the four struts 5 are fixedly connected with a top plate 6 together, the top plate 6 is connected with a driving mechanism 7, the driving mechanism 7 comprises an air pump 71 and an air exhaust pipe 72, the air pump 71 is arranged at the top of the top plate 6, the air exhaust pipe 72 is fixedly connected between the air pump 71 and the cross box 2, the bottom of the cross box 2 is provided with a placement mechanism 4, if the explosives and powders explode in the air pressure descending process, the instantaneous high temperature generated by the explosion can lead the residual air in the cross box 2 to be instantaneously expanded, the air pressure can be greatly increased in the moment and far exceeds the atmospheric pressure, the destructive power of the explosives and powders explode is high at the moment and is easy to damage the inner wall of the cross box 2, but the piston 31 is forced to move due to the instantaneous air pressure increase, so that the originally stretched spring 34 returns to the shape, the space in the cross box 2 can be increased, the expanded air can be placed, therefore, the destructive power of the explosive is reduced when the explosive is exploded, the cross box 2 is not easy to damage when the explosive is exploded, namely whether the explosive is exploded or not is tested, and the power of a part of the explosive is counteracted.
As a technical optimization scheme of the invention, the placement mechanism 4 comprises a threaded column 41 and a placement groove 42, the bottom of the cross box 2 is connected with the threaded column 41 in a threaded manner, and the placement groove 42 is formed in the top end of the threaded column 41.
As a technical optimization scheme of the invention, the placement mechanism 4 further comprises a rubber ring 43 and a chassis 44, the bottom of the threaded column 41 is fixedly connected with the chassis 44, the rubber ring 43 is arranged between the chassis 44 and the threaded column 41, and the rubber ring 43 props against the bottom of the cross box 2, so that the air tightness of the bottom of the cross box 2 is good.
As a technical optimization scheme of the invention, the driving mechanism 7 further comprises a pressing plate 78 and pressing rods 79, the pressing rods 79 are slidably connected to the inside of the four sliding grooves 36, and the pressing plates 78 are fixedly connected to the tops of the four pressing rods 79.
As a technical optimization scheme of the invention, the driving mechanism 7 further comprises a sliding sleeve 75 and a sliding rod 76, the top of the pressing plate 78 is fixedly connected with the sliding rod 76, the sliding sleeve 75 is fixedly connected to the top plate 6, and the sliding rod 76 is slidably connected to the inside of the sliding sleeve 75.
As a technical optimization scheme of the invention, the driving mechanism 7 further comprises a motor 74 and a screw rod 77, the motor 74 is fixedly connected to the top of the top plate 6, the screw rod 77 is movably connected to the motor 74, and the screw rod 77 is in threaded connection with the slide rod 76.
As a technical optimization scheme of the invention, the driving mechanism 7 further comprises a top hole 73, the top hole 73 is formed in the top plate 6, and the exhaust pipe 72 is located inside the top hole 73.
As a technical optimization scheme of the invention, the cross section of the sliding chute 36 is in a right trapezoid shape, the bottom of the sliding chute 36 is an inclined plane, four pressure rods 79 are respectively and slidably connected to the insides of the four sliding holes 37, after a motor 74 is started, the screw rods 77 are driven to rotate, the rotation of the screw rods 77 enables the sliding rods 76 to slide downwards in the sliding sleeves 75, the pressure plates 78 are driven to move downwards, the four pressure rods 79 are driven to slide downwards, and the springs 34 are driven to move, so that the four pistons 31 are pulled to move.
As a technical optimization scheme of the invention, the test method comprises the following steps:
s1: the explosive needing to be subjected to vacuum stability test is placed on the placement mechanism 4, the placement mechanism 4 is installed at the bottom of the cross box 2 in a spiral mode, and the placement mechanism 4 can ensure the bottom air tightness of the cross box 2 while placing the explosive into the cross box 2.
S2: the motor 74 is electrically connected with an external power supply, the motor 74 is started to drive the four compression bars 79 to be pressed down, so that the sliding block 33 is moved, the piston 31 is moved, the air pressure in the cross box 2 is firstly reduced, and at the moment, the air pressure in the cross box 2 is lower than the external air pressure, but the spring 34 is stretched due to the spring 34 arranged between the piston 31 and the sliding block 33.
S3: the air pump 71 is electrically connected with an external power supply, the air pump 71 is started, and the air of the cross tank 2 is further pumped out through the pumping pipe 72, so that the inside of the cross tank 2 is gradually close to a vacuum state, and whether the explosive is unstable or not is observed.
S4: if the explosive is exploded in the process of gradually reducing the air pressure in the cross box 2, the air pressure is increased instantaneously in the explosion moment, the pistons 31 are separated from each other by the increased air pressure, so that enough space is provided to alleviate the air pressure increase instantaneously due to the explosion, the explosion of the explosive does not cause larger impact force to the cross box 2, so that the cross box 2 is not easy to be broken, and if the explosive is not exploded, the vacuum stability of the explosive is better.
When the invention is used, firstly, the explosive is placed in the placing groove 42 on the threaded column 41, then the threaded column 41 is placed in the cross box 2 through the screw, the rubber ring 43 is propped against the bottom of the cross box 2, so that the air tightness of the bottom of the cross box 2 is good, then the motor 74 and the air pump 71 are electrically connected with an external power supply, the motor 74 is started, the screw 77 is driven to rotate, the rotation of the screw 77 enables the sliding rod 76 to slide downwards in the sliding sleeve 75, the pressing plate 78 is driven to move downwards, the four pressing rods 79 are driven to slide downwards, the four sliding blocks 33 are driven to slide, the springs 34 are driven to move, the four pistons 31 are pulled to move, the air pressure in the cross box 2 is reduced, the air pressure is lower than the external standard atmospheric pressure, and the springs 34 are slightly stretched because the pistons 31 are attracted by low air pressure, that is, the air pressure in the cross tank 2 is lower than the atmospheric pressure, and the spring 34 is in a stretched state, then, in order to test the stability of the explosive, the air pump 71 is started, the air pump 71 gradually pumps out the air in the cross tank 2, the air pressure in the cross tank 2 gradually decreases, whether the explosive explodes in a state that the air pressure gradually decreases and gradually approaches vacuum is observed, if the explosion does not occur, the vacuum stability of the explosive is better, if the explosive explodes in the air pressure decreasing process, the instantaneous high temperature generated by the explosion causes the residual air in the cross tank 2 to be instantaneously expanded, the air pressure is greatly increased in an instant and far exceeds the atmospheric pressure, the destructive power of the explosive explosion is high at the moment, the inner wall of the cross tank 2 is easily damaged, but the piston 31 is forced to move due to the instant air pressure increase, so that the originally stretched spring 34 returns to the shape, therefore, the space in the cross box 2 can be increased, so that the expanded air can be arranged, the destructive power of the explosive is reduced, the cross box 2 is not easy to damage when the explosive is exploded, namely whether the explosive is exploded or not is tested, and the power of part of the explosive is counteracted.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.
Claims (2)
1. The utility model provides an explosive vacuum stability test is with sample cell, includes base (1), its characterized in that: the utility model discloses a novel air pump, which is characterized in that a cross box (2) is fixedly connected with a base (1), an adjusting mechanism (3) is fixedly connected with the inside of the cross box (2), the adjusting mechanism (3) comprises a piston (31), a fixed sleeve (32), a sliding block (33), a spring (34), air holes (35), sliding grooves (36) and sliding holes (37), four pistons (31) are slidingly connected with the inner wall of the cross box (2), four fixed sleeves (32) are fixedly connected with the inner wall of the cross box (2), sliding blocks (33) are fixedly connected with the four fixed sleeves (32), springs (34) are fixedly connected between the four sliding blocks (33) and the four pistons (31), four air holes (35) are formed in the cross box (2), sliding grooves (36) are formed in the top of the four sliding blocks (33), four sliding holes (37) correspond to the four sliding grooves (36), four struts (5) are fixedly connected with the base (1), four struts (5) are fixedly connected with a top plate (7) and a top plate (7) are fixedly connected with a top plate (7), the air pump (71) is arranged at the top of the top plate (6), the air extraction pipe (72) is fixedly connected between the air pump (71) and the cross box (2), and the placement mechanism (4) is arranged at the bottom of the cross box (2);
the placement mechanism (4) comprises a threaded column (41) and a placement groove (42), the bottom of the cross box (2) is connected with the threaded column (41) in a threaded manner, and the placement groove (42) is formed in the top end of the threaded column (41);
the placing mechanism (4) further comprises a rubber ring (43) and a base plate (44), the base plate (44) is fixedly connected to the bottom of the threaded column (41), and the rubber ring (43) is arranged between the base plate (44) and the threaded column (41);
the driving mechanism (7) further comprises a pressing plate (78) and pressing rods (79), the pressing rods (79) are slidably connected to the inside of the four sliding grooves (36), and the pressing plates (78) are fixedly connected to the tops of the four pressing rods (79) together;
the driving mechanism (7) further comprises a sliding sleeve (75) and a sliding rod (76), the top of the pressing plate (78) is fixedly connected with the sliding rod (76), the sliding sleeve (75) is fixedly connected to the top plate (6), and the sliding rod (76) is slidably connected to the inside of the sliding sleeve (75);
the driving mechanism (7) further comprises a motor (74) and a screw (77), the motor (74) is fixedly connected to the top of the top plate (6), the screw (77) is movably connected to the motor (74), and the screw (77) is in threaded connection with the sliding rod (76);
the driving mechanism (7) further comprises a top hole (73), the top hole (73) is formed in the top plate (6), and the exhaust pipe (72) is located in the top hole (73);
the section of the chute (36) is in a right trapezoid shape, the bottom of the chute (36) is in an inclined plane, and four compression bars (79) are respectively and slidably connected to the insides of the four sliding holes (37).
2. The method for testing the sample cell for testing the vacuum stability of the explosives and powders according to claim 1, which is characterized in that: the test method comprises the following steps:
s1: the explosive to be tested for vacuum stability is placed on the placement mechanism (4), the placement mechanism (4) is arranged at the bottom of the cross box (2) in a spiral mode, and the placement mechanism (4) can ensure the air tightness of the bottom of the cross box (2) while placing the explosive into the cross box (2);
s2: the motor (74) is electrically connected with an external power supply, the motor (74) is started to drive the four compression bars (79) to be pressed down, so that the sliding block (33) is moved, the piston (31) is moved, the air pressure in the cross box (2) is reduced, at the moment, the air pressure in the cross box (2) is lower than the external air pressure, but the spring (34) is stretched due to the fact that the spring (34) is arranged between the piston (31) and the sliding block (33);
s3: the air pump (71) is electrically connected with an external power supply, the air pump (71) is started, the air in the cross box (2) is further pumped out through the air pumping pipe (72), and the inside of the cross box (2) is gradually close to a vacuum state, so that whether the explosive is unstable or not can be observed;
s4: if the explosive is exploded in the process of gradually reducing the air pressure in the cross box (2), the air pressure can be increased instantaneously in the explosion moment, and the increased air pressure can lead the pistons (31) to be respectively far away from each other so as to provide enough space to alleviate the air pressure increase instantaneously generated by the explosion, so that the explosion of the explosive can not cause larger impact force on the cross box (2), the cross box (2) is not easy to be broken, and if the explosive is not exploded, the vacuum stability of the explosive is better.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210087424.0A CN114518439B (en) | 2022-01-25 | 2022-01-25 | Sample cell for testing vacuum stability of explosives and powders and test method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210087424.0A CN114518439B (en) | 2022-01-25 | 2022-01-25 | Sample cell for testing vacuum stability of explosives and powders and test method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114518439A CN114518439A (en) | 2022-05-20 |
| CN114518439B true CN114518439B (en) | 2023-12-22 |
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| CN202210087424.0A Active CN114518439B (en) | 2022-01-25 | 2022-01-25 | Sample cell for testing vacuum stability of explosives and powders and test method |
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