Plasma generator with spiral metal wire propellant composite structure

Abstract

The invention discloses a plasma generator with a spiral metal wire propellant composite structure, and the plasma generator is characterized in that the plasma generator comprises an electrode stem, a nut pressing sheet, a negative plug, a capillary tube, a spiral metal wire and a propellant grain; a composite structure mode of metal wire propellant powder is adopted, and the formula composition, the diameter and the length of a propellant grain are adjusted, so the efficient ablation combustion-supporting effect on the propellant powder during metal wire electric explosion can be achieved; the structural mode that the inner wall of the capillary tube is coated with energetic substances is adopted, the amount of ablative substances can be further increased by selecting the coating substances and adjusting the thickness of a coating layer, and regulation and control over effective ignition substances and ignition pressure of plasma are achieved; the structural mode of the spiral metal wire is adopted, and the strength of electric explosion can be well controlled by adjusting the material, the diameter and the number of winding turns of the metal wire. The problems of multi-parameter accurate regulation and control of the plasma generator and control and efficiency of plasma ignition are solved.

Description

technical field [0001] The present invention relates to the field of plasma technology, in particular to a plasma generator, in particular to a composite structure with metal wire and propellant, which can greatly enhance the density of plasma and effective ignition material, and can be directly used for the ignition of gunpowder 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 pla...

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 that combines metal wire and propellant to greatly enhance the effective ignition of plasma

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