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Rare-earth permanent magnet-forming sintered body, and rare-earth permanent magnet obtained by magnetizing said sintered body
Rare-earth permanent magnet-forming sintered body, and rare-earth permanent magnet obtained by magnetizing said sintered body
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机译:形成稀土永磁体的烧结体和通过将所述烧结体磁化而获得的稀土永磁体
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摘要
This invention provides for a rare-earth permanent magnet-forming sintered body having an integral sintered structure of magnet material particles containing a rare-earth substance. The integral sintered structure is formed in a three-dimensional shape having: a cross-section with a shape defined by a radially outer-side arc-shaped surface having a first curvature radius, a radially inner-side arc-shaped surface having a second curvature radius less than the first curvature radius and having an arc shape concentric with the outer-side arc-shaped surface; and a first end face and a second end face each of which is a radially-extending face along a virtual radial line extending from a curvature center of the arc shapes; and an axial length extending in a direction perpendicular to the cross-section.
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