| 摘要 |
PROBLEM TO BE SOLVED: To provide a method of manufacturing a laminated polar anisotropic hybrid magnet that has higher magnetic properties than those of conventional anisotropic injected magnets and can be manufactured to decrease the use of expensive magnet materials. SOLUTION: Permanent magnet powders having low magnetic properties are mixed with a thermoplastic resin to prepare pellets of low magnetic properties, and the pellets are firstly injection-molded into a polar anisotropic or anisotropic metal die to prepare a polar anisotropic or anisotropic resin magnet having low magnetic properties. Permanent magnet powders having high magnetic properties are mixed with a thermoplastic resin to prepare pellets of high magnetic properties which are then magnetic field injection-molded into a polar anisotropic metal die having an outer diameter larger than that of the first injection molding metal die wherein the formed anisotropic resin magnet is packaged, to form a polar anisotropic or anisotropic resin magnet having higher magnetic properties, thereby manufacturing a laminated polar anisotropic hybrid magnet having a plurality of poles and a plurality of laminates. COPYRIGHT: (C)2005,JPO&NCIPI |
