A device for preparing nano powder by electric explosion method

Abstract

The invention discloses equipment for preparing nano powder by an electrical explosion method, and belongs to the field of nanomaterial preparation. The equipment aims at solving the problem that the conventional nano powder production equipment has a strict requirement for an insulating structure and an insulating material of a high-voltage part. The equipment comprises a nano powder reaction mechanism, an electrical explosion generation mechanism, a wire feeding mechanism matched with the nano powder reaction mechanism, an air cooler, a first connecting tube, a first insulating tube, a second connecting tube, a second insulating tube and a third connecting tube. According to the equipment, instant high voltage is generated by electrodes, so that materials in an explosion reaction cavity react to generate corresponding nano particles. Due to an improvement of a structure, the working voltage of the equipment is equal to or lower than 25KV, and a high-voltage part has a very low requirement for a high-voltage structure and a withstand voltage material. In addition, raw materials of the equipment are filamentary materials and non-insulators, so that the equipment has the characteristics of wide raw material source and high adaptability, and has good universality for various filamentary non-insulator materials.

Description

technical field [0001] The invention relates to the field of material preparation, in particular to the field of nano-powder material preparation, in particular to a device for preparing nano-powder by electric explosion. The invention is a professional equipment for producing nanometer powder, more specifically an equipment for producing nanometer powder by electric explosion method. Background technique [0002] Generally, materials with a scale ranging from 1 to 100 nm and exhibiting special physical and chemical effects that are significantly different from conventional materials are called nanomaterials. The basic units or constituent units of nanomaterials can be composed of atomic clusters, nanoparticles, nanowires, nanotubes or nanomembranes. Nanomaterials have physical effects such as quantum size effects, surface effects, and macroscopic quantum tunneling effects. The atomic and electronic structures of metal nanomaterials are different from metal particles with t...

AI Technical Summary

Problems solved by technology

[0005] 1) Complex structure, inconvenient operation and use;

[0006] 2) Strict requirements on the insulation structure and insulation materials of the high voltage part of the equipment;

[0007] 3) There are few types of powder materials produced, and it is difficult to use high-melting point metals and alloys for the preparation of nano-powders;

[0008] 4) The particle size distribution of the powder produced by the existing equipment is uneven, there are many submicron powder particles, the composition of the produced alloy powder is unevenly distributed, and the composition of the raw material is quite different, and the particle size of the produced powder is uncontrollable ;

[0009] 5) The resolution of the powder classification collection device is low, and it is difficult to realize the classification collection of nano-scale powder

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