To provide a method for processing Sm-Fe-N-based magnetic powders for a bond magnet in which a flow property in forming the bond magnet is superior and moreover stability in kneading with a resin is excellent, and to provide the bond magnet.
After iron oxide particle powders are mixed with samarium oxide particle powders, the mixture is subjected to a reduction reaction to form a mixture of iron particles and samarium oxide particles. Next, under a temperature range of 30 to 150°C and an oxygen containing atmosphere, a stabilization process is carried out to form an oxidated film on a particle surface of the iron particles. Thereafter, Ca is mixed, and under a temperature range of 800 to 1200°C and an inactive gas atmosphere, a reduction diffusion reaction is carried out, and next under a temperature range of 300 to 600°C, a nitriding reaction is carried out to obtain the Sm-Fe-N-based magnetic powders for the bond magnet.
| JP4306389 | Alloy powder manufacturing method |
| JP2004091889 | METAL NIOBIUM POWDER AND ITS MANUFACTURING METHOD |
| WO/2005/077573 | METHOD FOR PRODUCING VALVE METAL |
IKEMOTO KUNIO
FUJITA KATSUHIRO
HIRATA TADANOBU
SUGITA NORIO
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