H - Electricity – 01 – F
Patent
H - Electricity
01
F
H01F 1/117 (2006.01) H01F 1/059 (2006.01) H01F 41/02 (2006.01)
Patent
CA 2266216
Provision of an extrusion-molded magnet using a samarium-iron-nitrogen material, which is novel and capable of exhibiting excellent magnetic properties, i.e., samarium-iron-nitrogen system magnetic particles excellent in magnetic properties. A permanent magnet material consisting of samarium-iron-nitrogen system magnetized anisotropy particles and having increased inter-iron atom distance and elevated magnetic saturation, is prepared by a method of causing nitrogen intrusion into the iron crystal lattice of a samarium-iron alloy by holding the alloy in a nitrogen gas at about 500 degrees C. The prepared permanent magnet material is added to a thermoplastic polyolefin system synthetic resin, and the admixture is thermally fused and kneaded. The paste thus obtained is charged into an extrusion molder and extruded through a magnetic field device, which is at an end of the extrusion molder and has an internal die, thus obtaining a molded magnet, which has a particle array in a fixed orientation and is flexible. The molded magnet is magnetized with a magnetizing device in conformity to the particle array.
Magx Co. Ltd.
Marks & Clerk
LandOfFree
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