The invention discloses a method for preparing
neodymium, iron and
boron by means of bonding by the aid of high-uniformity
adhesive. The method includes steps of carrying out particle size treatment on
magnetic powder, and to be more specific,
grinding the
neodymium, iron and
boron magnetic powder by the aid of special
neodymium, iron and
boron magnetic powder grinding machines until the neodymium, iron and boron magnetic
powder can pass 90-mesh screen cloth; carrying out particle size treatment on auxiliaries, to be more specific, extracting gamma-aminopropyltriethoxysilane, water and
isopropyl alcohol according to
mass percents and matching the gamma-aminopropyltriethoxysilane, the water and the
isopropyl alcohol with one another;
drying materials, to be more specific, uniformly mixing the magnetic
powder treated at the step 1 and the auxiliaries treated at the step 2 with one another inside set ultrasonic generators to obtain mixtures, pouring the mixtures into
drying discs,
drying the mixtures, and then allowing the mixtures to stand still after the mixtures are dried so as to obtain
mixed materials; carrying out
granulation, to be more specific, pouring nylon 12 and the
mixed materials obtained at the step 3 into special neodymium, iron and boron granulators, granulating the nylon 12 and the
mixed materials to obtain particles and then allowing the particles to stand still after the nylon 12 and the mixed materials are granulated; carrying out injection molding on the particles in magnetic fields by the aid of injection molding machines. The method has the advantages that the human input, the equipment input and the
energy cost can be reduced, and accordingly large-scale production can be facilitated.