A method of preparing anisotropy sintering SmFeN permanent magnets

A method of preparing anisotropy sintering SmFeN permanent magnets

  • CN 108,766,755 A
  • Filed: 05/14/2018
  • Published: 11/06/2018
  • Est. Priority Date: 05/14/2018
  • Status: Active Application
First Claim
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1. a kind of method preparing anisotropy sintering SmFeN permanent magnets, it is characterised in that:

  • Include the following steps:

    1) by Sm2Fe17Alloy powder is mixed with pore creating material, is placed in alignment magnetic field and is rotated compression moulding, the plane being orientatedAnisotropy alloy block;

    2) it is sintered under protective atmosphere or vacuum, keeps the temperature, obtain multi hole surface anisotropy sintered alloy block;

    3) by above-mentioned alloy block, nitrogen treatment is carried out, product is obtained.

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