CN112867218A - Metal wire electric explosion method for enhancing energy discharge of energetic material - Google Patents
Metal wire electric explosion method for enhancing energy discharge of energetic material Download PDFInfo
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- CN112867218A CN112867218A CN202110009708.3A CN202110009708A CN112867218A CN 112867218 A CN112867218 A CN 112867218A CN 202110009708 A CN202110009708 A CN 202110009708A CN 112867218 A CN112867218 A CN 112867218A
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05H—PLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
- H05H1/00—Generating plasma; Handling plasma
- H05H1/24—Generating plasma
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05H—PLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
- H05H1/00—Generating plasma; Handling plasma
- H05H1/24—Generating plasma
- H05H1/52—Generating plasma using exploding wires or spark gaps
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Abstract
The invention discloses a metal wire electric explosion method for enhancing the energy discharge of an energetic material, which is used for an experiment of detonating the energetic material by metal wire electric explosion by processing a metal wire into a Z-shaped structure and covering the surface of the metal wire with the energetic material. The metal wire electric explosion detonation energetic material is a mechanism that drives the energetic material by utilizing physical phenomena or processes such as high-temperature environment, light radiation, shock waves and the like generated by the metal wire electric explosion, so the invention has feasibility in physics. According to the invention, firstly, according to the characteristic that the reaction time of energetic material explosion is microsecond level, the pulse discharge scale is adjusted to microsecond level, so that the energetic material explosion and the pulse discharge scale are matched in time. Secondly, the present invention adopts a method of coating the molten energetic material on the surface of the wire in consideration of the installation of the wire and the detonation sequence. Under the condition of certain electric explosion parameters, the contact area of the metal wire and the energetic material is obviously increased, and the deposition energy fed into a chemical explosion system is improved.
Description
Technical Field
The invention relates to a metal wire electric explosion method for enhancing the energy discharge of an energetic material.
Background
The metal wire electric explosion refers to a physical process that high-density pulse current is injected into a metal wire within a very short time, deposition energy rapidly melts, vaporizes and flows the metal wire under the action of joule heating, and plasma is generated. At present, electrical explosion of metal wires is intensively studied as a way to detonate energetic materials. For example, people such as the perioceanic shore (perioceanic shore, Zhang Yongmin, Liuqiao, Jing \40849, Han Yu, Qizi, the driving characteristics of copper wire electric explosion plasma to energetic materials [ J ]. high voltage technology, 2017,43(12): 4026-.
On the other hand, in order to obtain greater explosive power, new energetic materials are actively sought. For example, the theoretical energy level of the total-nitrogen energetic material can reach more than 3 times of that of TNT, and the exploded decomposition product is mainly nitrogen, so that the total-nitrogen energetic material is clean, pollution-free, difficult to detect and has various advantages in military affairs. At the same time, it is a new way to study the power of energetic materials by feeding other forms of energy. The energetic state with higher power can be obtained by feeding energy into the energetic material system in other forms, and a new means can be provided for researches on the damage mechanism of the explosive, the protection method of the explosive and the like. However, no relevant research is carried out at present. At present, little progress is made in the aspect of detonating energetic materials by metal wire electric explosion at home and abroad. In the prior load consisting of the metal wire and the energetic material, the contact area of the metal wire and the energetic material is small, only a small part of electric energy deposited in the metal wire is used for detonating the energetic material, and most of the electric energy is dissipated in the forms of light energy and heat energy. It is therefore desirable to find a new method and apparatus for increasing the discharge of electrical energy into energetic materials.
Disclosure of Invention
The invention aims to feed deposited energy in a metal wire into an energy-containing material discharging system and improve the energy discharging efficiency of the energy-containing material discharging system through matching of metal wire electric explosion and energetic material explosion in space and time, and provides a metal wire electric explosion method for enhancing the energy discharging of energetic materials.
In order to achieve the purpose, the invention adopts the following technical scheme to realize the purpose:
a wire electrical explosion method for enhancing the discharge of energetic materials, comprising the steps of:
step 1, processing a metal wire into a Z-shaped structure, and covering an energetic material on the surface of the metal wire;
step 2, installing the metal wire prepared in the step 1 in an electric explosion cavity, connecting one end of the metal wire with a high-voltage capacitor to be charged and connecting the other end of the metal wire with a ground end, and then charging the metal wire with a set voltage;
and 3, adjusting initial electric energy by adjusting voltage, triggering the air gap switch to break down, generating electric explosion, and detonating the energetic material.
The invention further improves the following steps:
and in the step 1, the metal wire is an aluminum wire, a tantalum wire or a tungsten wire.
The energetic material is in a powder shape and is uniformly covered on the surface of the metal wire by a smearing method.
The energetic material adopts aluminum nanoparticles, TNT or hexogen.
The energetic material is liquid, and the surface of the metal wire is covered with the energetic material in a molten state through soaking.
The length of the metal wire is 5-15cm, and the diameter of the metal wire is 0.2-0.3 mm.
Compared with the prior art, the invention has the following beneficial effects:
the invention relates to a metal wire electric explosion method for enhancing energy discharge of an energetic material, and provides an experiment for detonating the energetic material by metal wire electric explosion by processing a metal wire into a Z-shaped structure and covering the surface of the metal wire with the energetic material. The metal wire electric explosion detonation energetic material is a mechanism that drives the energetic material by utilizing physical phenomena or processes such as high-temperature environment, light radiation, shock waves and the like generated by the metal wire electric explosion, so the invention has feasibility in physics. According to the invention, firstly, according to the characteristic that the reaction time of energetic material explosion is microsecond level, the pulse discharge scale is adjusted to microsecond level, so that the energetic material explosion and the pulse discharge scale are matched in time. Secondly, the present invention adopts a method of coating the molten energetic material on the surface of the wire in consideration of the installation of the wire and the detonation sequence. Under the condition of certain electric explosion parameters, the contact area of the metal wire and the energetic material is obviously increased, and the deposition energy fed into a chemical explosion system is improved.
Furthermore, the metal wire is arranged in the electric explosion cavity in a Z shape, so that a longer metal wire and an energetic material with larger mass can be used for experiments under the condition that the distance between the electrodes is certain, and more energy release can be generated.
Furthermore, the output characteristics of the electric explosion device can be matched with the energetic material discharging process in time and space, namely that the current period and the reaction rate of the energetic material of the electric explosion device are microsecond level, and the energetic material is coated on the metal wire in a Z-shaped configuration. The effect of enhancing the discharge can be achieved.
Further, using aluminum, tantalum or tungsten wire, etc., the aluminum nanoparticles can be used as energetic materials, while the tantalum and tungsten nanoparticles can be used to catalyze energetic material discharge.
Drawings
In order to more clearly explain the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a schematic view of a load and its installation of the present invention;
fig. 2 is a flow chart of the configuration making and using of the load of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the embodiments of the present invention, it should be noted that if the terms "upper", "lower", "horizontal", "inner", etc. are used for indicating the orientation or positional relationship based on the orientation or positional relationship shown in the drawings or the orientation or positional relationship which is usually arranged when the product of the present invention is used, the description is merely for convenience and simplicity, and the indication or suggestion that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, cannot be understood as limiting the present invention. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.
Furthermore, the term "horizontal", if present, does not mean that the component is required to be absolutely horizontal, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the embodiments of the present invention, it should be further noted that unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
The invention is described in further detail below with reference to the accompanying drawings:
referring to fig. 1 and 2, the invention relates to a wire electric explosion method for enhancing the energy release of an energetic material, which adopts a Z-shaped metal wire, the energetic material covers the surface of the metal wire, and two ends of the metal wire are respectively arranged on a high-voltage and low-voltage polar plate. In the past, when experiments of detonating the energetic materials by the metal wire through electric explosion are carried out, the metal wire is vertically arranged, the energetic materials are partially contacted with the metal wire, although the energetic materials can be detonated, the deposited energy in the metal wire is not completely fed into the energetic materials, and the energy utilization rate is low. After the load preparation and installation method shown in fig. 1 is adopted, the smooth proceeding of the metal wire electric explosion process can be ensured, the effective contact area between the metal wire electric explosion process and the energetic material can be increased, the efficiency of feeding electric energy into chemical energy is improved, and the quality of the energetic material participating in the reaction is increased.
Firstly, a Z-shaped structure is formed on a metal wire through a processing method to ensure that the metal wire is straight and smooth, and then an energetic material is covered on the surface of the metal wire by adopting a method of soaking and melting the energetic material and the like. The prepared metal wire is arranged between the high-voltage pole plate and the low-voltage pole plate, then the set voltage is charged into the metal wire, the initial electric energy is adjusted through the voltage, the air gap switch is triggered to be broken down, electric explosion is generated, physical environments such as high temperature, high pressure, light radiation and the like are generated, and the energetic material can be detonated. Further, the electrical energy continues to feed into the explosive products of the wire and energetic material, enhancing their discharge. In addition, when the materials such as aluminum wires, tungsten wires and the like are selected, the metal steam and the nano particles can directly help or participate in energy release, and more energy and faster release are finally realized.
As shown in fig. 2, the present invention is mainly developed around the load design method of detonating an energetic material by a wire electrical explosion, and the wire electrical explosion mode and the main driving factors of the energetic material are not the focus of the present invention, so the present invention is idealized as that the wire electrical explosion is a typical electrical explosion process, i.e. the whole process including liquefaction, vaporization and plasma formation, and there is no special phenomenon such as current pause, the energetic material can be driven by one or more factors such as high temperature, shock wave and light radiation to explode, the units such as an energy storage capacitor and a trigger switch are consistent with the simple wire electrical explosion, and the start and the end of the related device can be set manually. The specific method comprises the following steps:
step 1, processing a metal wire:
the metal wire with the selected size is processed into a Z-shaped structure by an effective means, and each section of the metal wire keeps straight and smooth.
Step 2, covering with energetic materials:
and uniformly covering the powder or the solution of the energetic material on the surface of the processed metal wire by methods such as smearing and the like, so that the spatial matching of the metal wire electric explosion and the energetic material explosion process is realized.
Step 3, installing a metal wire:
after the preparation of the metal wire and the energetic material is completed, the metal wire is installed in an electric explosion cavity, one end of the metal wire is connected with a high-voltage capacitor to be charged, the other end of the metal wire is connected with the ground, and an experiment can be prepared after the confirmation of no errors. After the explosion is finished, the operation can be repeatedly carried out.
The invention has the following advantages:
1. the energetic material is initiated by using a metal wire electric explosion method, electric energy is fed into energy released by the energetic material, and the electric energy exceeds chemical energy of the energetic material.
2. The matching of the electric explosion and the energetic material discharge in space and time is kept, and the efficiency of feeding electric energy into chemical energy is increased.
3. The metal vapor and nanoparticles generated by the electrical explosion can directly participate or assist in the discharge of the energetic material. The method and the device have great significance in future related experiments for detonating the energetic material by using the metal wire electric explosion, and the matching of the electric explosion and the chemical explosion in space and time can be realized.
Examples
Step 1, processing the aluminum wire with the length of 15cm and the diameter of 0.25mm into a Z-shaped structure shown in figure 1, wherein each section of the aluminum wire is smooth and straight.
And 2, heating the TNT to the melting point of about 80 ℃, putting the aluminum wire obtained in the step 1 into the TNT, taking out the TNT, and airing to obtain the prepared load.
The differences between examples 2-7 and example 1 are shown in the following table:
| examples | Length of wire/cm | Wire diameter/mm | Wire material | Energetic material |
| 1 | 5 | 0.25 | Aluminum wire | TNT |
| 2 | 10 | 0.3 | Aluminum wire | TNT |
| 3 | 10 | 0.2 | Tungsten filament | Hexogen |
| 4 | 10 | 0.2 | Tantalum wire | TNT |
| 5 | 15 | 0.3 | Aluminum wire | Hexogen |
| 6 | 15 | 0.3 | Tungsten filament | TNT |
| 7 | 15 | 0.3 | Tantalum wire | Hexogen |
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. A wire electrical explosion method for enhancing the discharge of energetic materials, comprising the steps of:
step 1, processing a metal wire into a Z-shaped structure, and covering an energetic material on the surface of the metal wire;
step 2, installing the metal wire prepared in the step 1 in an electric explosion cavity, connecting one end of the metal wire with a high-voltage capacitor to be charged and connecting the other end of the metal wire with a ground end, and then charging the metal wire with a set voltage;
and 3, adjusting initial electric energy by adjusting voltage, triggering the air gap switch to break down, generating electric explosion, and detonating the energetic material.
2. The process of claim 1, wherein the metal wire used in step 1 is aluminum, tantalum or tungsten.
3. The wire electric explosion method for enhancing the discharge of energy-containing materials according to claim 1 or 2, wherein the energy-containing materials are in powder form and are uniformly coated on the surface of the wire by a coating method.
4. The wire electrical explosion method for enhancing the discharging of an energetic material according to claim 3, wherein the energetic material employs aluminum nanoparticles, TNT or hexogen.
5. The wire electrical explosion method for enhancing the discharging of an energetic material according to claim 1 or 2, wherein the energetic material is a liquid, and the energetic material in the molten state is coated on the surface of the wire by soaking.
6. A wire electrical explosion method for enhancing the discharge of energy-containing materials according to claim 1 or 2, wherein said wire has a length of 5-15cm and a diameter of 0.2-0.3 mm.
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| CN202110009708.3A CN112867218A (en) | 2021-01-05 | 2021-01-05 | Metal wire electric explosion method for enhancing energy discharge of energetic material |
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| CN202110009708.3A CN112867218A (en) | 2021-01-05 | 2021-01-05 | Metal wire electric explosion method for enhancing energy discharge of energetic material |
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Cited By (4)
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| CN113533430A (en) * | 2021-07-05 | 2021-10-22 | 西安近代化学研究所 | Test observation method for synergistic explosion effect of electric explosion and energetic material |
| CN113533429A (en) * | 2021-07-05 | 2021-10-22 | 西安近代化学研究所 | Test platform and observation device for cooperation of electric explosion and energetic material with explosion effect |
| CN113604771A (en) * | 2021-07-28 | 2021-11-05 | 兰州理工大学 | Device and method for preparing magnesium alloy microtube by electric explosion jet deposition method |
| CN115026296A (en) * | 2022-06-13 | 2022-09-09 | 广东银纳科技有限公司 | Medical-grade tantalum powder for additive manufacturing and preparation method thereof |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113533430A (en) * | 2021-07-05 | 2021-10-22 | 西安近代化学研究所 | Test observation method for synergistic explosion effect of electric explosion and energetic material |
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| CN113604771A (en) * | 2021-07-28 | 2021-11-05 | 兰州理工大学 | Device and method for preparing magnesium alloy microtube by electric explosion jet deposition method |
| CN113604771B (en) * | 2021-07-28 | 2022-05-17 | 兰州理工大学 | Device and method for preparing magnesium alloy microtube by electric explosion jet deposition method |
| CN115026296A (en) * | 2022-06-13 | 2022-09-09 | 广东银纳科技有限公司 | Medical-grade tantalum powder for additive manufacturing and preparation method thereof |
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