| 摘要 |
<p>A nanometer iron powder specially used in conversion of electromagnetism energy is produced, wherein using critical particles cutting process of nanometer metal powder at 25°C~5°C temperature and setting the high frequency cutting times at 3000-3500 times per minute to produce nanometer iron powder, then grading the powder to obtain powder with relatively dispersed granulometric distribution that is D3=200.56nm, D10=300.89nm, D25=360.06nm, D50=400.19nm, D75=520.11nm, D97=600.73nm and S.S.A=0.02, finally permeating a layer of oxidation resistant coating at the surface of the powder particle by nitrogen and helium coating process. The nanometer iron powder produced in the application solves the problem of low inductance and electric quantity existing in the technology of electromagnetism energy converter.</p> |
