Metal treatment – Process of modifying or maintaining internal physical... – Magnetic materials
Patent
1991-03-19
1992-05-26
Sheehan, John P.
Metal treatment
Process of modifying or maintaining internal physical...
Magnetic materials
75331, 164463, 164477, 209 8, 209214, 209215, 241 24, 241 791, H01F 102
Patent
active
051164345
ABSTRACT:
Disclosed is a method for forming a high magnetic parameter ferromagnetic material. The material has a distribution of magnetic parameters as solidified, and is separated into a first fraction having relatively high magnetic parameters and a second fraction having relatively low magnetic parameters. The method comprises applying a magnetic field to the materials, the magnetic field being high enough to magnetize the low magnetic parameter fraction, but low enough to avoid substantially magnetization of the high parameter fraction. Thereafter the fractions of material are magnetically separated.
REFERENCES:
patent: 4802931 (1989-02-01), Croat
Im Jun S.
Keem John
Ovonic Synthetic Materials Company Inc.
Sheehan John P.
Siskind Marvin S.
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