The manufacture method of anisotropic hard magnet

The manufacture method of anisotropic hard magnet

  • CN 86,102,259 A
  • Filed: 04/07/1986
  • Published: 10/21/1987
  • Est. Priority Date: 04/07/1986
  • Status: Abandoned Application
First Claim
Patent Images

1. Make ferromagnetic oxide powders such as dispersant and Ba, Sr with paraffin and mix, magnetic 90~

  • 70 (wt%), paraffin 10~

    30 (wt%) adds a small amount of surfactant in addition, is shaped with the hot pressing injector that is added with magnetic field.Forming temperature 60~

    100 (℃

    ), mold temperature 25~

    50 (℃

    ), shaping pressure is several~

    tens (kgf/cm 2), profiled magnetic field 4000~

    7000 (oe) or use pulsed magnetic field, the ferritic manufacture method of the high orientation of the back dewaxing and sintering that is shaped.

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