The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 05, 1996
Filed:
Mar. 02, 1995
V R Ramanan, Dover, NJ (US);
Howard H Liebermann, Succasunna, NJ (US);
AlliedSignal Inc., Morristown, NJ (US);
Abstract
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 FIG. 1, said alloy having a crystallization temperature of at least about 490.degree. C., a saturation magnetization value of at least about 174 emu/g at 25.degree. C., a core loss not greater than about 0.3 W/kg, measured at 25.degree. C., 60 Hz and 1.4 T after having been annealed at 360.degree. C. for about 2000 seconds, a core loss not greater than about 0.3 W/kg, measured at 25.degree. C., 60 Hz and 1.4 T after having been annealed at about 380.degree. C. for a time ranging from about 1000 to about 2000 seconds, an exciting power requirement not greater than about 1 VA/kg, measured at 25.degree. C., 60 Hz and 1.4 T after having been annealed at 360.degree. C. for about 2000 seconds, an exciting power requirement not greater than about 1 VA/kg, measured at 25.degree. C., 60 Hz and 1.4 T after having been annealed at 380.degree. C. for about 1000 seconds, a fracture strain of at least about 0.03, measured at 25.degree. C. for the alloy after having been annealed at about 360.degree. C. for about 1.5 hours, and a fracture strain of at least about 0.03, measured at 25.degree. C. for the alloy after having been annealed at about 380.degree. C. 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.