Rare earth magnet material and method for producing the same

Rare earth magnet material and method for producing the same

  • CN 102,667,978 A
  • Filed: 09/10/2010
  • Published: 09/12/2012
  • Est. Priority Date: 10/10/2009
  • Status: Active Grant
First Claim
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1. make the method for rare-earth magnet material, said method comprises:

  • The preparation process of the mixture of powders of preparation following ingredients;

    Ferromagnetic powder;

    Said ferromagnetic powder is the powder of coupernick;

    Said coupernick comprises first rare earth element (hereinafter referred to as " R1 ") as more than one rare earth elements, boron (B) and all the other are iron (Fe) and unavoidable impurities, and has or do not have modifying element;

    WithAs the fluoride powder of the powder of fluoride,At least a neodymium (Nd) that contains in said ferromagnetic powder and the fluoride powder;

    WithThereby the formed body that heats said mixture of powders obtains block rare-earth magnet material heating step, wherein is distributed in as the neodymium oxide fluoride of the product of near the particle of said ferromagnetic powder oxygen or oxide and said fluoride not only to comprise surface element but also comprise in all parts of inside.

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