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Concentric Explosive Shell Charging Structure and Its Forming Die and Forming Method for Shock Gasification Research
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A technology for forming molds and charges, which is applied in the direction of explosive charges, explosives, and material explosives, and can solve the problems of aerosol conversion rate and impact gasification performance of thrust materials.
Active Publication Date: 2022-04-05
BEIJING INSTITUTE OF TECHNOLOGYGY +1
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[0004] At present, the overall use of the centripetal explosive charge structure for the shock gasification of the thruster material is still blank, but the structural matching of the embedded thruster structure, the impedance of the thruster material and the high-energy high explosive during the explosion drive process is still blank. The problem of matching, the position and number of detonation points and the control of detonation sequence are the most important links that affect the impact gasification performance of the propellant material and the aerosol conversion rate. Therefore, it is necessary to design a centripetal detonation charge structure and its molding method, so as to meet the research needs of the impact gasification performance and aerosol conversion rate of the propelling body material under the action of explosive load, and further provide support for the technical development of search and detonation emergency response and safety protection equipment for relevant departments
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Embodiment 1
[0062] This embodiment provides a charge structure of a centripetal explosive shell for impact gasification research, through which the test of the centripetal convergence performance of the explosive pair propellant can be performed.
[0063] Such as figure 1 and figure 2 As shown, the centripetal explosion spherical charge structure includes: spherical charge 1 and spherical thrust body 2;
[0064] Such as image 3 As shown, the spherical pushing body 2 is a hollow spherical structure with equal wall thickness, and the material is AL, CU-OFHC high-conductivityoxygen-free copper and other metal materials that are easy to be crushed and deformed; the wall thickness of the spherical pushing body 2 is 2 mm to 5 mm; in this example The middle spherical pushing body 2 is formed by butting two hollow hemispheres.
[0065] The outside of the spherical pusher 2 is a spherical charge 1 (that is, the spherical pusher 2 is embedded inside the spherical charge 1), and the spherical ...
Embodiment 2
[0069] On the basis of the above-mentioned embodiment 1, further, in order to realize the reliable detonation of the spherical charge 1, the spherical charge 1 is provided with an expanding explosive column A3, and the end of the spherical charge 1 is carried out through the expanding explosive column A3. Detonate. Explosive column A3 is pressed and molded by JH-2, JH-14, passivated RDX and other standard explosives, which are used to amplify the energy released by the detonator detonation, and further detonate the spherical explosive charge reliably.
[0070] Such as Figure 5 As shown, in this example, the spherical charge 1 is detonated at a single point, that is, an expanding charge A3 is arranged on the outer surface of the spherical charge 1, and the detonator for detonating the spherical charge 1 passes through the expanding charge A3 and the spherical charge. Charge 1 is connected, and the connection surface between the expanding explosive column A3 and the spherical ...
Embodiment 3
[0072] Such as Figure 6 As shown, the difference with the above-mentioned embodiment 2 is that, in this example, the spherical charge 1 is detonated at two points, that is, the outer surface of the spherical charge 1 is relatively provided with two expanding explosive columns A3 (i.e. two expanding explosives Column A3 is respectively located at both ends of the same diameter of the spherical charge 1). During the test, two expanding explosive columns A3 detonated simultaneously, and the spherical charge 1 was detonated.
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Abstract
The invention provides a charge structure of a centripetal explosive shell used in the study of shock gasification, through which the charge structure can simulate the centripetal convergence process of the pushing body being crushed and deformed under the detonation driving action of the explosive charge. The charge structure includes: a spherical / ellipsoid charge and a spherical / ellipsoid push body; the spherical / ellipsoid charge and the spherical / ellipsoid push body are both hollow spherical / ellipsoid structures with equal wall thickness, so The spherical / ellipsoidal pusher is embedded inside the spherical / ellipsoidal charge, and the outer surface of the spherical / ellipsoidal pusher is in contact with the inner surface of the spherical / ellipsoidal charge; the spherical / ellipsoidal charge The charge is concentric with the spherical / ellipsoidal propelling body; when the spherical / ellipsoidal charge explodes, the detonation wave generated causes the spherical / ellipsoidal propelling body to collapse and deform towards the center. In addition, the present invention also provides a molding die and a molding method for the above-mentioned centripetal explosive charge structure.
Description
technical field [0001] The invention relates to a special-shaped charge structure, in particular to a centripetal explosive charge structure for studying the shock gasification reaction under the action of explosive detonation loading, as well as a forming mold and a forming method thereof. Background technique [0002] Dirty bombs, also known as "radioactive bombs", are dispersible radioactive weapons that can spread radioactive substances over a wide range. This type of bomb is different from the chemical explosion reaction of C, H, O, and N elements in conventional weapons and ammunition. The interior of its structure is spherical or powdered cobalt-60, cesium-137 or strontium-90 and other radioactive substances wrapped with explosives. , the huge detonation pressure during detonation causes part of the radioactive material to impact and gasify to form radioactive aerosol, or disperses radioactive particles into the air, thus causing large-scale nuclear radioactive pollut...
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