| 摘要 |
PURPOSE:To efficiently manufacture a cylindrical oxide magnet which has high characteristics, long axis, and formed in one body, by extrusion molding a blended and kneaded material whose main component is an anisotropic-oxide magnetic material, and cooling said material by supplying cooling water. CONSTITUTION:When extruding the blended and kneaded material whose main component is the anisotropic-oxide magnetic material, the outer periphery of a pushing screw part 6 is cooled by supplying the cooling water 9 or the like. By this method, the heating of the pushing screw part is suppressed, and the material is prevented from drying, thereby the cylindrical oxide magnet which has the high characteristics, the long axis, and formed in one body can be efficiently manufactured. |
