H - Electricity – 01 – F
Patent
H - Electricity
01
F
H01F 1/153 (2006.01) C22C 45/02 (2006.01)
Patent
CA 2072089
This invention is directed to metallic alloy consisting essentially of iron, boron and silicon and having a composition in the region A, B, C, D, E, F, A of figure 1, said alloy having a crys- tallization temperature of at least about 490 °C, a saturation magnetization value of at least about 174.emu/g at 25ÀC, a core loss not greater than about 0.3 W/kg, measured at 25ÀC, 60 Hz and 1.4 T after having been annealed at 360ÀC for about 2000 seconds, a core loss not greater than about 0.3 W/kg, measured at 25ÀC, 60 Hz and 1.4 T after having been annealed at about 380ÀC for a time ranging from about 1000 to about 2000 seconds, an exciting power require- ment not greater than about 1 VA/kg, measured at 25ÀC, 60 Hz and 1.4 T after having been an- nealed at 360ÀC for about 2000 seconds, an ex- citing power requirement not greater than about 1 VA/kg, measured at 25ÀC,.60 Hz and 1.4 T af- ter having been annealed at 380ÀC for about 1000 seconds, a fracture strain of at least about .03, measured at 25ÀC for the alloy after having been annealed at about 360ÀC for about 1.5 hours, and a fracture strain of at least about .03, measured at 25ÀC for the alloy after having been annealed at about 380ÀC for about 1.5 hours. The alloys exhibit improved utility and handleability in the production of magnetic cores used in the manufacture of electric distribution and power transformers.
Liebermann Howard H.
Ramachandran Venkata Ramanan Varagur
Alliedsignal Inc.
Gowling Lafleur Henderson Llp
LandOfFree
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