| 摘要 |
PROBLEM TO BE SOLVED: To provide an injection molding mold for a bonded magnet which is little in generation of a flash and easy for maintenance. SOLUTION: In an injection molding mold where in divided elements 31 and 34 comprising a non magnetic material and divided elements 22, 31, 33 and 36 comprising a magnetic material are arranged so as to generate a radial magnetic field in a cavity C, the cavity C is set in a groove 40 provided in a sleeve 37, generation of a flash is suppressed by discarding a joint of the divided elements of a movable mold 12, and a wear life is coped with only by exchange of the sleeve 37.
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