Plasma generator with metal wire structure embedded in propellant powder

Abstract

The invention discloses a plasma generator with a metal wire structure embedded in the propellant powder, which is characterized by comprising an electrode stem, a nut pressing sheet, a cathode plug, a capillary tube, a propellant grain and a metal wire, a composite structure mode that the metal wire is embedded into the propellant grain is adopted, and the formula composition, the outer diameter, the hole number, the inner hole diameter and the length of the propellant grain are adjusted, so that the efficient ablation combustion-supporting effect on propellant powder during electric explosion of the metal wire can be achieved; the structural mode that the inner wall of the capillary tube is coated with energetic substances is adopted, and effective ignition substances and ignition pressure of plasmas can be adjusted and controlled by selecting the coating substances and adjusting the thickness of a coating layer; the structural mode that the multiple metal wires penetrate through the propellant grain is adopted, the material, the diameter and the number of the metal wires are optimized, and the strength of electric explosion can be well controlled. The problems of multi-parameter accurate adjustment and control of the plasma generator and control and efficiency of plasma ignition are solved.

Description

technical field [0001] The invention relates to the field of plasma technology, in particular to a plasma generator, in particular to a composite structure with propellant embedded metal wires, which can greatly enhance the density of plasma and effective ignition material, and can be directly used in gunpowder Ignition of the plasma generator. Background technique [0002] Plasma is an atomic group of ionized gas-like substances composed of positive and negative ions generated after ionization of atoms deprived of some electrons. It is a macroscopically neutral ionized gas whose scale is larger than the Debye length. Its movement is mainly dominated by electromagnetic force. And exhibit remarkable collective behavior. Plasma is divided into high-temperature hot plasma and low-temperature cold plasma according to temperature, and high-density plasma and low-density plasma according to density. According to different application objects, the structure and mechanism of plasma...

AI Technical Summary

Problems solved by technology

The structure of the capillary discharge plasma makes the direction of the plasma more constrained, and a certain plasma state substance can also be generated by ablation of the capillary, but the following problems exist in the application to the ignition of the propellant: (1) The density of the plasma is relatively low. Low, the effective ignition material is less, and the propellant cannot be ignited quickly and uniformly; (2) only the metal wire is used to ablate the capillary, the ablation ability is small, and more ignition materials cannot be obtained; (3) The capillary material is composed of non-energetic substances, which requires a large amount of energy to be ablated, and the amount of substances produced by ablation is small, which makes the ignition efficiency of the plasma generator low and difficult to control

[0003] From the technical information retrieved so far, there is no plasma generator with a composite structure embedded with metal wires in the propellant, which greatly enhances the effective ignition of the plasma.

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