| 摘要 |
<p>A method for producing a sintered rare earth magnet which comprises pulverizing an ingot of Nd2Fe14 alloy as a raw material to prepare a fine powder, filling a mold for pressing with a mixture of the fine powder with a binder, pressing the mixture in a magnetic field to carry out a pretreatment for putting magnetic orientations of particles in order, sintering the resulting pressed powder for a sintered magnet in a heat treatment furnace, for example, at 1050 ° for 2 hr to prepare a rare earth sintered magnet, subjecting the magnet to cutting and abrasion to form a given product shape, and then immersing the formed magnet in a Zn plating bath held at 680 ° for a given period of time (about 30 min). The method allows simultaneous practice of both of a coating treatment and an aging treatment.</p> |
