The alloy powder material of rare-earth-iron-boron permanent magnet and the manufacture method of adjusting the alloy powder of its composition

The alloy powder material of rare-earth-iron-boron permanent magnet and the manufacture method of adjusting the alloy powder of its composition

  • CN 1,082,963 A
  • Filed: 03/18/1993
  • Published: 03/02/1994
  • Est. Priority Date: 03/19/1992
  • Status: Abandoned Application
First Claim
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1. , a kind of manufacture method that is used to make the alloy powder raw material of R-Fe-B permanent magnet is characterized in that a kind of alloy powder comprises a kind of R that is used to adjust composition 2Fe 17Phase, and comprise and account for atomicity 50% or less R (R represent from the rare earth element that comprises yttrium, select at least a element), and remaining sum is iron (at least a part substitute that can be used as iron in cobalt and the nickel) and unavoidable impurities, above-mentioned alloy powder is added in a kind of main-phase alloy powder, and the main-phase alloy powder is with a kind of R 2Fe 14B is as principal phase, and comprise the R (R represents at least a element from the rare earth element that comprises yttrium) that accounts for atomicity 10% to 30%, account for the boron of atomicity 6% to 40%, and remaining sum is iron (at least a part substitute that can be used as iron in cobalt and the nickel) and unavoidable impurities.

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