Resin bound magnet and its production process

Details Resin bound magnet and its production process Resin bound magnet and its production process

H - Electricity

01

F

317/26, 148/6, 1

H01F 1/26 (2006.01) H01F 1/28 (2006.01) H01F 7/00 (2006.01) H01F 41/02 (2006.01) H01F 1/30 (1990.01)

Patent

CA 2014975

Abstract A Resin Bound Magnet And Its Production Process This invention relates to a resin bound type magnet and its production process, especially a cylindrical or a thin plate state magnet and its production process. A resin bound type magnet comprising a magnetic powder and an organic resin or further with an additive and its production process wherein it is moulded as a single body in a cylindrical form satisfying a relation of 2DL / d2 ? 1 among the outer diameter (D), the inner diameter (d) and the length (L) of the said magnet, and it also has a radiated anisotropy in the diameter direction. Further this invention is a resin bound type magnet and a production process of a resin bound type magnet by an extrusion moulding of the said magnet with a die in a magnetic field wherein an average particle size r of the magnetic powder satisfies r ? 0.1 t (t ? 1mm) with the thickness t of the moulded article of an anisotropic resin bound type magnet comprising the said magnetic powder and the resin.

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