Method for preparing nano powdered material of non-ferrous metal by using electronic split process

A non-ferrous metal and nano-powder technology, applied in metal processing equipment, transportation and packaging, etc., can solve the problems of high cost and environmental pollution, and achieve the effects of low production cost, wide particle distribution and low energy consumption

Inactive Publication Date: 2009-08-05
王惠民
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problems of high cost and environmental pollution in the preparation of metal nano-powder particles in the prior art, the present invention provides a method for preparing non-ferrous metal nano-powder material by electron splitting method

Method used

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  • Method for preparing nano powdered material of non-ferrous metal by using electronic split process

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Experimental program
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Effect test

Embodiment 1

[0013] A method for preparing non-ferrous metal nano-powder material by electron splitting method,

[0014] The closed container is continuously filled with inert gas He, and the non-ferrous metal wire material with a diameter of 1mm is placed in the airtight container, and a voltage of 80v is introduced to both ends of the non-ferrous metal wire material to release a high current of 100A in an instant, and the wire melts. And form spherical particles with smooth surface, while the inert gas He flows out, the non-ferrous metal spherical particles flow out at the same time and enter the closed container to accumulate and collect; then surface treatment,

[0015] While collecting the non-ferrous metal sphere particles, fill the accumulation container with 3% oxygen to act on the surface of the non-ferrous metal particles to gradually form a 1nm honeycomb oxide layer, and then input the obtained non-ferrous metal nano-powder material into the intermediate frequency furnace at 210°...

Embodiment 2

[0017] Embodiment 2: A method for preparing non-ferrous metal nano-powder material by electron splitting method,

[0018] The closed container is continuously filled with inert gas He, and the non-ferrous metal wire material with a diameter of 2mm is put into the airtight container, and a voltage of 110v is introduced to both ends of the non-ferrous metal wire material to release a high current of 1000A in an instant, and the wire melts And form spherical particles with smooth surface, while the inert gas He flows out, the non-ferrous metal spherical particles flow out at the same time and enter the closed container to accumulate and collect; then surface treatment,

[0019] While collecting non-ferrous metal sphere particles, fill the accumulation container with 5% oxygen to act on the surface of non-ferrous metal particles, so that a 3nm honeycomb oxide layer is gradually formed, and then the obtained non-ferrous metal nanopowder material is input into a 270°C intermediate fr...

Embodiment 3

[0021] A method for preparing non-ferrous metal copper nano-powder material by electron splitting method,

[0022] The closed container is continuously filled with inert gas He, and the non-ferrous metal wire material with a diameter of 7mm is placed in the airtight container, and a voltage of 400v is introduced to both ends of the non-ferrous metal copper wire material to release a high current of 2500A in an instant, and the copper metal The silk melts and forms spherical particles with smooth surface. When the inert gas He flows out, the non-ferrous metal copper spherical particles flow out at the same time and enter the airtight container to accumulate and collect; then surface treatment,

[0023] While collecting the non-ferrous metal copper sphere particles, fill the accumulation container with 10% oxygen to act on the surface of the non-ferrous metal copper particles, so that a 2nm honeycomb oxide layer is gradually formed, and then the obtained non-ferrous metal copper ...

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Abstract

The invention relates to a processing technology of metal nano powder, in particular to a method for preparing nonferrous metal nano powder material by electron splitting method. The invention solves the problems of high cost, environmental pollution and the like in the preparation of metal nanopowder particles in the prior art. The main step is to conduct a high current on the non-ferrous metal wire in an inert gas environment to melt and split it to form high-quality metal nano-scale powder particles. The invention has the obvious advantages of low production cost, low energy consumption, no pollution, good particle shape, large specific surface area, good fluidity and the like.

Description

technical field [0001] The invention relates to a processing technology of metal nano powder, in particular to a method for preparing nonferrous metal nano powder material by electron splitting method. Background technique [0002] Non-ferrous metal nanopowder materials in the international market are basically produced and processed by chemical or physical chemical methods. The biggest disadvantages of chemical production and processing of non-ferrous metal nano-powder materials are: high energy consumption, high pollution, difficult control of powder particles, damage to the physical properties of non-ferrous metals, and difficulty in making nano-level powder particles. All produced are in the μm and quasi-nm range, and very few actually reach nm. Therefore, the cost of ferrous metal nano-powder materials in the international market is very high, and the market price is even more frighteningly high. As far as nano-copper powder is concerned, the price of 1g is US$569, whi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22F9/14
CPCB22F2998/00B22F9/14B22F1/054
Inventor 王惠民
Owner 王惠民
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