CN112969275A - Method for enhancing discharge plasma radiation to drive enhanced material - Google Patents
Method for enhancing discharge plasma radiation to drive enhanced material Download PDFInfo
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- CN112969275A CN112969275A CN202110148220.9A CN202110148220A CN112969275A CN 112969275 A CN112969275 A CN 112969275A CN 202110148220 A CN202110148220 A CN 202110148220A CN 112969275 A CN112969275 A CN 112969275A
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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
- H05H1/48—Generating plasma using an arc
-
- 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
- H05H2277/00—Applications of particle accelerators
- H05H2277/13—Nuclear physics, e.g. spallation sources, accelerator driven systems, search or generation of exotic elements
Abstract
The application discloses a method for enhancing discharge plasma radiation to drive an enhancement material, comprising the following steps: carrying out short-circuit discharge on the metal wire to generate discharge plasma; the radiation enhancing substance laid on the surface of the metal wire increases the temperature and the radiation intensity of the discharge plasma; the enhanced discharge plasma drives the enhanced material coated by the enhanced radiation substance to react and generate shock waves. The method solves the defect of low electric energy storage density caused by the fact that the shock wave is generated through metal wire discharge, is beneficial to industrial application, and meanwhile, the method avoids the problems that the metal wire discharge driving effect is poor, the efficiency is low, even detonation is difficult and the like caused by higher reaction threshold and more dullness of a reinforcing material.
Description
Technical Field
The application belongs to the technical field of shock wave generation, and particularly relates to a method for enhancing discharge plasma radiation to drive an enhancement material.
Background
Mineral resources are an important material basis for economic and social development, and at present, no matter metal minerals, nonmetal minerals or building stones are hard, so that the problems of difficult mining and the like of a conventional tool exist, and therefore, an explosive blasting mode is mainly adopted in actual mining. Although the explosive and other initiating explosive have great technical advantages in rock breaking operation, the explosive blasting and rock breaking not only seriously threatens the life safety of production personnel, but also has the defect of poor environmental protection, so that the control on rock breaking mining by using the explosive is more and more strict, and further the mining of mineral resources is restricted. The tunneling of various lithologic roadways is summarized, and the working progress of the shield tunneling machine is slow due to high hardness of rocks, so that engineering pre-splitting needs to be carried out on the rocks on a working surface. The safety of the initiating explosive device in rock engineering pre-splitting is poor, the control is very strict, and the working efficiency is greatly reduced.
The patent "a method for generating shock wave in water by driving energetic mixture by wire electric explosion discharge plasma" (publication No. CN108180003B) and the patent "a method for generating shock wave by releasing energy by driving energetic electrode by high-voltage discharge" (publication No. CN105674818B) propose a method for generating shock wave by generating energetic material which is driven by oxidation reaction and releasing energy by radiation of discharge plasma by forming discharge plasma arc by electric explosion of wire caused by short-circuit discharge to wire. The patent "a rock breaking rod for generating shock wave and its manufacturing method" (publication No. CN111472772A), "a compound rock breaking rod for generating controllable shock wave and its manufacturing method" (publication No. CN111472774A), "a liquid rock breaking rod for generating shock wave and its manufacturing method" (publication No. CN111472771A), "a compound liquid rock breaking rod for generating controllable shock wave and its manufacturing method" (publication No. CN111472773A) respectively introduce the method of using metal wire discharge plasma to drive various energetic materials to generate shock wave. In these patents, the electrical energy stored in the pulsed power source is converted into discharge plasma energy by the wire discharge to drive the reinforcement material to reinforce the shock wave generated by the wire discharge.
The technology of generating shock waves by metal wire discharge is different from the technology of generating shock waves by chemical explosion, and the metal wire discharge is more environment-friendly and safer. In practical application, however, the wire discharge drives the oxidation reaction which is easy to release energy, and not only the pulse power source is required to have enough energy storage, but also the material and the structural size of the wire are required to reach set parameters, so as to ensure the intensity of the shock wave. When the reaction threshold value is driven to be higher and the reaction is more insensitive, a pulse power driving source with larger volume has to be adopted, and the parameter requirement on the metal wire is higher, so that the problems of poor metal wire discharge driving effect, low efficiency, even difficult detonation and the like caused by the large processing difficulty of the metal wire and the large volume of the pulse power driving source exist, and the use of the metal wire for generating shock waves by discharge is limited.
Disclosure of Invention
The embodiment of the application solves the problem of poor driving effect caused by shock waves generated by metal wire discharge in the prior art by providing a method for enhancing discharge plasma radiation to drive an enhanced material.
In a first aspect, embodiments of the present invention provide a method for enhancing discharge plasma radiation to drive an enhancement material, comprising the steps of:
carrying out short-circuit discharge on the metal wire to generate discharge plasma;
the radiation enhancing substance laid on the surface of the metal wire increases the temperature and the radiation intensity of the discharge plasma;
the enhanced discharge plasma drives the enhanced material coated outside the radiation enhancement substance to react and generate shock waves.
Further, the radiation enhancement substance comprises graphene, a rare earth exothermic material or a rare earth up-conversion material.
Further, the radiation-enhancing substance is a rare earth up-conversion material;
the radiation enhancement substance laid on the surface of the metal wire regulates and controls the radiation spectrum of the discharge plasma, so that the radiation spectrum of the discharge plasma is matched with the absorption spectrum of the enhancement material, and simultaneously, the radiation energy of a spectrum section of which the absorption spectrum is close to that of the enhancement material is enhanced.
In a second aspect, the embodiments of the present invention further provide a method for applying a radiation-enhancing substance to a surface of a metal wire, where the radiation-enhancing substance is used, including the following steps:
selecting a powdery radiation-enhancing substance;
uniformly mixing the radiation-enhancing substance and the adhesive to obtain a radiation-enhancing coating agent;
and uniformly coating the radiation-enhancing coating agent on the surface of the metal wire, and enabling the radiation-enhancing coating agent to reach a set thickness, thereby finishing the application of the radiation-enhancing substance on the surface of the metal wire.
The radiation enhancing substance further comprises polyethylene.
In a third aspect, an embodiment of the present invention further provides a method for applying a radiation-enhancing substance to a surface of a metal wire, where the radiation-enhancing substance is used, including the following steps:
selecting a film-shaped radiation-enhancing substance;
and coating the radiation-enhancing substance on the surface of the metal wire to enable the radiation-enhancing substance to reach a set thickness, thereby finishing the laying of the radiation-enhancing substance on the surface of the metal wire.
In a fourth aspect, an embodiment of the present invention further provides an impact bar capable of enhancing radiation of a discharge plasma, including a shell, a metal wire, a radiation-enhancing substance, and a reinforcing material, where the shell is a hollow straight tube with two closed ends; the metal wire is arranged along the axis of the shell, two ends of the metal wire extend out of the shell and are fixedly installed, the radiation-enhancing substance is laid on the surface of the metal wire, and the reinforcing material is filled in the shell.
Furthermore, the impact rod capable of enhancing the radiation of the discharge plasma also comprises an inner tube coaxially sleeved in the shell, the inner tube is a hollow straight tube with two closed ends, and the metal wire penetrates through the inner tube; the reinforcing material is filled between the inner tube and the outer shell;
the inner pipe is filled with powdery energetic materials.
Further, the diameter of the metal wire is 0.3-3 mm, and the metal wire is made of tungsten, tantalum, nickel-chromium alloy or aluminum-magnesium alloy;
the reinforcing material is high explosive, pyrotechnic agent, thermite, chlorine-containing material and aluminum powder, or bromine-containing material and aluminum powder.
Further, the reinforcing material is solid and comprises 60-80% of polytetrafluoroethylene and 20-40% of aluminum powder in percentage by mass, and the particle size of the aluminum powder is submicron to micron.
One or more technical solutions provided in the embodiments of the present invention have at least the following technical effects or advantages:
the embodiment of the invention provides a method for enhancing radiation of a discharge plasma to drive an enhancement material, which can improve the temperature and the strength of the discharge plasma through enhancing a radiation substance, so that under the condition of a pulse power driving source with the same energy storage capacity, the metal wire discharge can easily drive the enhancement material to react and generate shock waves, and further the volume and the weight of equipment for pre-cracking rocks by the shock waves can be reduced; the method can reduce the energy storage of the pulse power source under the condition of generating the shock wave with the same strength, further reduce the volume and the weight of the pulse power source, and solve the defect of low electric energy storage density of the shock wave generated by the discharge of the metal wire, so the method is beneficial to industrial application, and simultaneously avoids the problems of poor metal wire discharge driving effect, low efficiency, even more difficult detonation and the like caused by higher reaction threshold and more insensitive of the reinforced material.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments of the present invention will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a flow chart of a method for enhancing discharge plasma radiation to drive an enhancement material according to an embodiment of the present invention.
Fig. 2 is a schematic structural diagram of an impact bar capable of enhancing discharge plasma radiation according to an embodiment of the present invention.
Reference numerals: 1-a metal wire; 2-a radiation enhancing substance; 3-a reinforcing material; 4-a shell.
Detailed Description
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, not all, embodiments of the present 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.
As shown in fig. 1, the method for enhancing discharge plasma radiation to drive an enhancement material according to an embodiment of the present invention includes the following steps:
short-circuit discharge is performed on the wire 1 to generate discharge plasma.
The radiation enhancing substance 2 laid on the surface of the metal wire 1 raises the temperature and the radiation intensity of the discharge plasma.
The enhanced discharge plasma drives the enhanced material 3 coated outside the enhanced radiation substance 2 to react and generate shock waves.
According to the invention, the temperature and the strength of the discharge plasma can be improved by the radiation enhancing substance 2, so that under the condition of a pulse power driving source with the same energy storage capacity, the metal wire 1 is easy to drive the enhancing material 3 to react and generate shock waves when discharging, and the volume and the weight of equipment for pre-cracking rocks by the shock waves can be further reduced; the method can also reduce the energy storage of the pulse power source under the condition of generating the shock wave with the same strength, further reduce the volume and the weight of the pulse power source, and solve the defect of lower electric energy storage density of the shock wave generated by the discharge of the metal wire 1, so the method is beneficial to industrial application, and simultaneously avoids the problems of poor discharge driving effect, low efficiency, even more difficult detonation and the like of the metal wire 1 caused by higher reaction threshold value and more dullness of the reinforcing material 3, such as fluorination reaction for releasing energy by non-oxidation reaction.
The method can only make the metal wire 1 generate discharge plasma and generate stronger shock wave when the strong current reaches more than 80kA and lasts for more than 50 mu s, so the method has high process safety, further ensures that ore bodies can be fully exploited, and simultaneously avoids the safety problem caused by difficult control during blasting of initiating explosive devices. Compared with the prior art, the invention can reduce the current and the duration time when the driving metal wire 1 generates the discharge plasma, thereby reducing the requirement of the equipment performance and further improving the safety in the shock wave generation process.
In this embodiment, the radiation enhancement substance 2 includes graphene, a rare earth exothermic material, or a rare earth up-conversion material.
The reinforcing material such as graphene, rare earth heating material or rare earth up-conversion material is a material which is easily ionized by discharge plasma to generate more plasma, so that the function of reinforcing radiation can be achieved. The metal wire is used for generating the discharge plasma, the generated discharge plasma drives the radiation enhancement substance 2 which is more difficult to be ionized to further generate the discharge plasma, and the quality of the material capable of generating the discharge plasma is increased, so that the reaction of the enhancement material is easier to drive and shock waves are generated, the problem that the conventional technical scheme (such as the increase of the volume of the metal wire) is adopted and the driving current is large or even the material cannot be driven is solved, and the method disclosed by the invention has good effect and high efficiency in shock wave generation.
In this embodiment, the radiation enhancing substance 2 is a rare earth up-conversion material.
The enhanced radiation substance 2 laid on the surface of the metal wire 1 regulates and controls the radiation spectrum of the discharge plasma, so that the radiation spectrum of the discharge plasma is matched with the absorption spectrum of the enhancement material 3, and simultaneously, the radiation energy of a spectrum band with the absorption spectrum close to that of the enhancement material 3 is enhanced.
In the physical process of the discharge plasma driving the reinforcing material 3 to generate shock waves, the ultraviolet radiation effect is the maximum. In actual construction, when the radiation spectrum of discharge plasma generated by the metal wire 1 electric explosion is adjusted, a rare earth up-conversion material can be adopted, wherein the rare earth up-conversion material is a material capable of generating ultraviolet/visible light under the excitation of near infrared light, namely, a luminescent material capable of converting infrared low-energy photons into ultraviolet/visible high-energy photons, namely, the luminescent material can generate ultraviolet section radiation required by the invention.
The discharge plasma generated by the discharge of the metal wire 1 is limited by the pulse power driving source and the material and the structure size of the metal wire 1, and has an optimal value, but when the optimal value still does not meet the driving requirement, the reinforcing material 3 cannot be driven to generate shock waves by a conventional means. The rare earth up-conversion material is driven by the discharge plasma by utilizing the rare earth up-conversion material, and the visible light and infrared band radiation frequency spectrum of the discharge plasma is transferred to the ultraviolet part, so that the driving efficiency can be improved. And then the purpose of rare earth material conversion of the radiation spectrum of the discharge plasma is realized, the radiation spectrum of the discharge plasma is closer to the absorption spectrum of the reinforcing material 3, the matching state is further achieved, and meanwhile, the radiation energy of the discharge plasma and the energy-containing material in the spectrum band close to the absorption spectrum can be reinforced, so that the driving effect of the discharge plasma is improved.
The embodiment of the invention also provides a method for coating the radiation-enhancing substance on the surface of the metal wire, which adopts the radiation-enhancing substance 2 and comprises the following steps:
and selecting the powdery radiation enhancement substance 2, namely powdery graphene, a rare earth heating material or a rare earth up-conversion material.
Uniformly mixing the powdery graphene, the rare earth heating material or the rare earth up-conversion material with the adhesive to obtain the radiation-enhanced coating agent; the adhesive is used to firmly adhere the radiation enhancing substance 2 to the surface of the wire 1. The adhesive can be made of a polymer material with a simple molecular structure.
And uniformly coating the radiation-enhancing coating agent on the surface of the metal wire 1, wherein the thickness of the radiation-enhancing coating agent is more than 0.3mm, so that the radiation-enhancing substance 2 on the surface of the metal wire 1 is laid.
In this embodiment, the radiation enhancing substance 2 further comprises polyethylene. Polyethylene is a high molecular polymer with the simplest molecular structure, and is easily ionized by discharge plasma radiation to generate discharge plasma, so that the overall strength of the discharge plasma is easily enhanced.
The embodiment of the invention also provides a method for coating the radiation-enhancing substance on the surface of the metal wire, wherein the radiation-enhancing substance 2 polyethylene is adopted, and the method comprises the following steps:
the radiation enhancing substance 2 is selected to be a film with a thickness of 0.1mm, namely a polyethylene film with a thickness of 0.1mm is selected.
The radiation-enhancing substance 2 is coated on the surface of the metal wire 1 by wrapping three layers of polyethylene film, so that the total thickness of the polyethylene film is more than 0.3 mm.
As shown in fig. 2, an embodiment of the present invention further provides an impact bar capable of enhancing radiation of discharge plasma, including a shell 4, a metal wire 1, a radiation enhancing substance 2 and a reinforcing material 3, where the shell 4 is a hollow straight tube with two closed ends; the metal wire 1 is arranged along the axis of the shell 4, two ends of the metal wire extend out of the shell 4 and are fixedly installed, the radiation-enhancing substance 2 is laid on the surface of the metal wire 1, and the reinforcing material 3 is filled in the shell 4.
The outer diameter of the shell 4 is 12-20mm, the length is 100-200mm, and the shell 4 is made of non-metal materials. The reinforcing material 3 is an oxidation reaction energy-releasing material or a non-oxidation reaction energy-releasing material. By arranging the radiation enhancement substance 2, the metal wire 1 is easy to drive the enhancement material 3 to react and generate shock waves when discharging, and the volume and the weight of the shock rod can be further reduced.
The structure of the impact bar of the invention can adopt the patent 'a rock breaking bar for generating impact wave and a manufacturing method thereof' disclosure number: CN111472772A or "a liquid rock breaking rod for generating shock wave and its manufacturing method" publication no: CN111472771A discloses a structure of rock breaking rod.
The wire drawing device also comprises an inner tube coaxially sleeved in the shell 4, wherein the inner tube is a hollow straight tube with two closed ends, and the metal wire 1 penetrates through the inner tube; the reinforcing material 3 is filled between the inner tube and the outer shell 4.
The inner pipe is filled with powdery energetic materials.
The structure of the impact bar in the embodiment can adopt the patent 'a composite rock breaking bar for generating controllable shock waves and a manufacturing method thereof' publication number: CN111472774A or "a composite liquid rock breaking rod for generating controllable shock wave and its manufacturing method" publication no: CN111472773A discloses a structure of rock breaking rod.
In this embodiment, the diameter of the metal wire 1 is 0.3-3 mm, and the metal wire 1 is made of tungsten, tantalum, nichrome or aluminum magnesium alloy.
The material and size of the metal wire 1 are different along with the energy storage change of the pulse power driving source, and the metal wire 1 with the diameter of 0.3-3.0 mm covers the pulse power driving source with the energy storage of 2-100 kJ. Generally, the larger the energy storage of the pulse power source, the thicker the diameter of the wire 1, but there is no quantitative relationship at present.
In this embodiment, the reinforcing material 3 is a high explosive, a pyrotechnic agent, a thermite, a chlorine-containing material and an aluminum powder, or a bromine-containing material and an aluminum powder.
The high explosive, the pyrotechnic agent and the thermite are reinforcing materials 3 which release energy by oxidation reaction; the chlorine-containing material and the aluminum powder, or the bromine-containing material and the aluminum powder are reinforcing materials 3 that release energy in a non-oxidation reaction. The invention can also adopt fluorine-containing and iodine-containing materials to carry out non-oxidation reaction. The non-oxidation reaction includes a fluoroaluminium reaction, a chloroaluminium reaction, an aluminum bromide reaction, and an aluminum iodide reaction.
The reaction of fluorine chlorine bromine iodine and aluminum is similar to the oxidation reaction of oxygen and aluminum, oxygen can also react with metals such as magnesium, titanium, iron and the like to release energy, and the thermite is the energy release reaction of aluminum replacing other metals, and is also called generalized oxidation reaction. The difference is that the reaction threshold is high, namely the reaction conditions are harsh, and the impact bar adopting the reinforcing material 3 is safer. The reaction release of the fluorine-chlorine-bromine iodide compound and the aluminum powder can be safer.
In the embodiment, the reinforcing material 3 is a solid, the reinforcing material 3 comprises 60-80% of polytetrafluoroethylene and 20-40% of aluminum powder in mass fraction, and the particle size of the aluminum powder is submicron to micron.
The packing density of the reinforcing material 3 of this example was 2g/cm3. Compared with the existing initiating explosive device, the polytetrafluoroethyleneThe ethylene and the aluminum powder are non-explosive products, and only when the metal wire 1 has a strong current of 80kA and lasts for more than 100 mu s, the shock wave generated by discharge, the radiation of discharge plasma and the heat of the discharge plasma can be initiated to generate stronger shock wave, so that the safety of the impact bar is high.
Through the use of the enhanced radiation substance 2, the limitation on the energy storage and the volume of the pulse power driving source is reduced, the defect that the electric energy storage density is lower when the metal wire 1 discharges to generate shock waves is overcome, and the shock wave technology can be applied to more occasions and fields.
According to the invention, the temperature and the radiation intensity of the discharge plasma generated by the discharge of the metal wire 1 are enhanced, so that the reinforcing material 3 with any quality can be directly driven to generate the required controllable shock wave, the safety is ensured, the mineral resources can be well exploited, the lithologic roadway can be well tunneled, and the construction efficiency is further improved.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and all simple modifications, changes and equivalent structural changes made to the above embodiment according to the technical spirit of the present invention still fall within the protection scope of the technical solution of the present invention.
Claims (10)
1. A method of enhancing discharge plasma radiation to drive an enhancement material, comprising the steps of:
short-circuit discharge is carried out on the metal wire (1) to generate discharge plasma;
the radiation enhancing substance (2) laid on the surface of the metal wire (1) raises the temperature and the radiation intensity of the discharge plasma;
the enhanced discharge plasma drives the enhanced material (3) coated outside the radiation enhancement substance (2) to react and generate shock waves.
2. A method of enhancing discharge plasma radiation to drive an enhancement material according to claim 1, characterized in that the enhancement radiation substance (2) comprises graphene, rare earth exothermic material or rare earth up-conversion material.
3. A method of enhancing discharge plasma radiation to drive an enhancement material according to claim 2, characterized in that the radiation enhancing substance (2) is a rare earth up-conversion material;
the radiation enhancement substance (2) laid on the surface of the metal wire (1) regulates and controls the radiation spectrum of the discharge plasma, so that the radiation spectrum of the discharge plasma is matched with the absorption spectrum of the enhancement material (3), and simultaneously, the radiation energy of a spectrum section of which the absorption spectrum is close to that of the enhancement material (3) is enhanced.
4. A method of enhancing discharge plasma radiation to drive an enhancement material according to claim 1, characterized in that the radiation enhancing substance (2) comprises polyethylene.
5. A method of applying a radiation enhancing substance to the surface of a wire, characterized in that the radiation enhancing substance (2) used in the method according to claim 2 is applied, comprising the steps of:
selecting a powdery radiation-enhancing substance (2);
uniformly mixing the radiation-enhancing substance (2) and the adhesive to obtain a radiation-enhancing coating agent;
uniformly coating the radiation-enhancing coating agent on the surface of the metal wire (1), and enabling the radiation-enhancing coating agent to reach a set thickness, thereby completing the application of the radiation-enhancing substance (2) on the surface of the metal wire (1).
6. A method for applying a radiation enhancing substance to the surface of a wire, characterized in that the radiation enhancing substance (2) used in the method according to claim 4 is applied, comprising the steps of:
selecting a film-shaped radiation-enhancing substance (2);
and (3) coating the radiation-enhancing substance (2) on the surface of the metal wire (1) to enable the radiation-enhancing substance (2) to reach a set thickness, so that the application of the radiation-enhancing substance (2) on the surface of the metal wire (1) is completed.
7. The impact rod capable of enhancing the radiation of the discharge plasma is characterized by comprising a shell (4), a metal wire (1), a radiation enhancing substance (2) and a reinforcing material (3), wherein the shell (4) is a hollow straight pipe with two closed ends; the metal wire (1) is arranged along the axis of the shell (4), two ends of the metal wire extend out of the shell (4) and are fixedly installed, the radiation-enhancing substance (2) is laid on the surface of the metal wire (1), and the reinforcing material (3) is filled in the shell (4).
8. The surge bar capable of enhancing discharge plasma radiation as claimed in claim 7, further comprising an inner tube coaxially sleeved in the outer shell (4), wherein the inner tube is a hollow straight tube with two closed ends, and the metal wire (1) passes through the inner tube; the reinforcing material (3) is filled between the inner tube and the outer shell (4);
the inner pipe is filled with powdery energetic materials.
9. The strike bar of claim 7 capable of enhancing discharge plasma radiation, wherein: the diameter of the metal wire (1) is 0.3-3 mm, and the metal wire (1) is made of tungsten, tantalum, nickel-chromium alloy or aluminum-magnesium alloy;
the reinforcing material (3) is a high explosive, a pyrotechnic agent, a thermite, a chlorine-containing material and aluminum powder, or a bromine-containing material and aluminum powder.
10. The strike bar of claim 7 capable of enhancing discharge plasma radiation, wherein: the reinforcing material (3) is solid, the reinforcing material (3) comprises 60-80% of polytetrafluoroethylene and 20-40% of aluminum powder in percentage by mass, and the particle size of the aluminum powder is submicron to micron.
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