Variable orientation magnet molding tool

Details Variable orientation magnet molding tool Variable orientation magnet molding tool

1999-05-14

2000-09-26

Pyon, Harold

Plastic and nonmetallic article shaping or treating: processes

Direct application of electrical or wave energy to work

Producing or treating magnetic product precursor thereof

425 3, 425DIG33, H05B 600

Patent

active

061238929

ABSTRACT:
A magnet molding tool for controlling the orientation of magnetic particles in a polymer bonded magnet during injection molding. A magnet mold has a mold cavity. A flux generator is connected to the magnet mold for applying a magnetic field in the cavity. An upper plate is attached to the magnet mold to modify the magnetic field in the cavity such that the orientation of the magnetic particles varies proportionally to the dimensions of the plate.

REFERENCES:
patent: 4444550 (1984-04-01), Loubier
patent: 4604042 (1986-08-01), Tanigawa et al.
patent: 5453224 (1995-09-01), Kuroda

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