Permanent magnet temporary demagnetization temperature rise...

Details Permanent magnet temporary demagnetization temperature rise... Permanent magnet temporary demagnetization temperature rise...

2011-03-01

2011-03-01

Ward, Jessica L (Department: 1735)

Metal fusion bonding

Process

Critical work component, temperature, or pressure

C228S262410, C228S262420, C228S262100, C228S102000, C228S103000

Reexamination Certificate

active

07896224

ABSTRACT:
A method for raising a demagnetization temperature of a permanent magnet is disclosed. The method provides a ferromagnetic arrangement around the magnet to increase demagnetization thresholds for the duration of soldering, or any other process requiring high temperatures. Using the method disclosed, it is possible to apply high levels of heat directly to permanent magnets without demagnetization, and more particularly to create permanent magnetic assemblies fit for any environment.

REFERENCES:
patent: 6214480 (2001-04-01), Hosoe et al.
patent: 6722643 (2004-04-01), Kurtz

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