Cutting production technology of metal nanometer powder zero boundry particle

A technology of metal nano powder and production process, which is applied in metal processing equipment, transportation and packaging, etc. It can solve the problems of powder agglomeration and irregular particle shape, and achieve the effect of small particle diameter and good dispersion

Inactive Publication Date: 2007-02-14
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 powder agglomeration and irregular particle shape in the preparation of nano-scale metal powder materials in the prior art, the present invention provides a metal nano-powder zero-boundary particle cutting production process

Method used

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  • Cutting production technology of metal nanometer powder zero boundry particle
  • Cutting production technology of metal nanometer powder zero boundry particle
  • Cutting production technology of metal nanometer powder zero boundry particle

Examples

Experimental program
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Effect test

Embodiment 1

[0022] Embodiment 1, a production process of metal nano powder zero-boundary particle cutting, taking iron powder as an example, the steps include, placing the iron powder at a zero-boundary processing temperature of 5°C, and then cutting the iron powder particles at high speed , controlled at 4,000 times per minute, and then high-frequency grinding of the cut iron powder particles at 4,000 rpm, followed by high-speed reduction and surface treatment. You can get the product. Final grading and sorting. If the iron powder index is not up to standard, secondary cutting and grinding can be carried out.

[0023] The specific steps are: 1. Iron ore mining; 2. Mechanical crushing; 3. Washing; 4. Magnetic separation; 5. Drying; 6. Grinding to 100 mesh; 7. High temperature purification; Zero boundary particle cutting; 11 secondary classification; 12 high-frequency grinding; 13 purification; 14 coating; 15 high-speed reduction; 16 surface treatment; 17 parabolic classification; 18 neg...

Embodiment 2

[0025] Embodiment 2: The steps and equipment used are the same as those in Embodiment 1. The zero boundary processing temperature is controlled at -6°C, the cutting frequency is controlled at 6000 times / min, and the high-frequency grinding is 4000 rpm.

Embodiment 3

[0026] Embodiment 3: The steps and equipment used are the same as those in Embodiment 1. The zero boundary processing temperature is controlled at -10°C, the cutting frequency is controlled at 5000 times / min, and the high-frequency grinding is 5000 rpm.

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Abstract

The present invention relates to preparation of nanometer metal powder, and is especially critical cutting nanometer metal powder producing process. The production process includes the steps of: setting iron powder at critical temperature of -10 deg.c to +10 deg.c, cutting iron powder particle at the speed of 4000-6000 times every minute, high frequency grinding at 4000-6000 rpm, physical reduction, surface treatment and final grading. By means of the technology of the present invention, may be produced nanometer level superfine iron powder with spherical form, homogeneous granularity, good flowability and high strength.

Description

technical field [0001] The invention relates to a metal nano powder processing technology, in particular to a metal nano powder zero boundary particle cutting production technology. Background technique [0002] Nanotechnology is an emerging technology that emerged in the 1990s. It is a science that studies the properties and laws of substances with a scale of 0.1-100 nanometers. Nanoparticles refer to ultrafine particles whose particle size is on the order of nanometers, and nanoparticles are generally between 1-100nm. When the small particle size enters the nanometer level, it has quantum size effect, small size effect, surface effect and macroscopic quantum tunneling effect, and thus exhibits many unique properties. It is used in catalysis, light absorption, medicine, magnetic media and new materials. etc. have broad application prospects. When the size of nanoparticles continues to decrease, under certain conditions, it will cause changes in the macroscopic physical an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F9/04
CPCB22F9/04B22F2999/00B22F1/054B22F1/065
Inventor 王惠民
Owner 王惠民
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