Metal treatment – Process of modifying or maintaining internal physical... – Magnetic materials
Patent
1983-05-05
1986-07-22
Sheehan, John P.
Metal treatment
Process of modifying or maintaining internal physical...
Magnetic materials
148 3155, 75234, 75246, H01F 102
Patent
active
046017658
ABSTRACT:
A compacted powdered iron core utilizes iron powder in the 0.002 to 0.006 mean particle size range which is first coated with an alkali metal silicate and then overcoated with a silicone resin polymer. The treated powder is compressed to approximately 94% of theoretical density and then annealed at approximately 600.degree. C. This results in a core component characterized by overall core losses as low as in conventional laminated cores in A.C. operation.
REFERENCES:
patent: 3245841 (1966-04-01), Clarke et al.
patent: 3725521 (1973-04-01), Ebling
patent: 3917976 (1975-11-01), Nuckolls
patent: 4177089 (1979-12-01), Bankson
patent: 4227166 (1980-10-01), Tsuji et al.
Soileau Trasimond A.
Speaker Lawrence W.
General Electric Company
Policinski Henry J.
Sheehan John P.
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