| abstract |
An object of the present invention is to provide a resin-bonded magnet having excellent magnetic properties as well as excellent shape freedom, formability, and mechanical strength.n n n A resin-bonded magnet in which a composition composed of magnetic powder and a resin binder is molded, wherein the resin binder is a resin-bonded magnet mainly composed of at least one unsaturated polyester resin cured product.n n n The resin binder preferably contains a peroxide or a reactant thereof curable at a temperature of 150 ° C. or lower, and the anisotropic magnetic field of the magnetic powder is 50 kOe or more, and 50 wt% or more of the particles of the magnetic powder has a particle diameter of 100 μm or less. desirable.n n n A resin bonded magnet is obtained by molding by injection molding, injection compression molding, injection press molding, or transfer molding. |