| 简介 |
PROBLEM TO BE SOLVED : To provide a magnet compound having satisfactory compression moldability by canceling deterioration in magnetic characteristics, mechanical strength, dimensional accuracy, and weather resistance with density reduction in exponent function caused by thinning and elongation observed in a conventional annular rare-earth-ferrous bond magnet dependent on compression molding, and making the magnet compound thin and long while maintaining these characteristics to reduce the amount of rare-earth elements to be used as a result, and a rare-earth-ferrous bond magnet using the same.SOLUTION : A pseudo spherical magnet compound is constituted by containing a resin composition component which is a solid at the normal temperature and has flowability with yield stress and a magnet component, and includes approximately spherical granules. A cavity is filled with the pseudo spherical magnet compound, uniaxial pressure equal to or higher than the yield stress of the resin composition component constituting the pseudo spherical magnet compound is applied to the pseudo spherical magnet compound at the normal temperature to obtain a green compact in a predetermined shape. The green compact is heated, and the resin composition component constituting the green compact is cured. |
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