Processing amorphous metal into packets by bonding with low melt

Details Processing amorphous metal into packets by bonding with low melt Processing amorphous metal into packets by bonding with low melt

1981-03-19

1983-11-08

Hall, Carl E.

Metal working

Method of mechanical manufacture

Electrical device making

228190, 228249, H01F 304

Patent

active

044134061

ABSTRACT:
A method for forming cores for an electrical transformer is disclosed. Also disclosed are the cores made from such a method. In one embodiment an amorphous metal core has relatively thick superimposed laminations comprised of relatively thin amorphous metal sheets. The amorphous metal sheets are heated and bonded together by a metallic bonding agent to form relatively thick amorphous metal packets for the superimposed laminations of the core. The heating and bonding of the amorphous metal sheets reduce the mechanical stresses normally induced into the amorphous metal during the fabrication process. In another embodiment a hybrid core has superimposed laminations certain of which comprise sheets of non-crystalline amorphous metal and one or more sheets of crystalline silicon steel metal.

REFERENCES:
patent: 2334131 (1943-11-01), Schultz
patent: 2479325 (1949-08-01), DeDomenico
patent: 3043000 (1962-07-01), Hatfield
patent: 3550266 (1970-12-01), Pickles et al.
patent: 4155397 (1979-05-01), Honsinger et al.
patent: 4219355 (1980-08-01), DeCristofaro
patent: 4288773 (1981-09-01), Alley et al.
F. E. Luborsky et al., "Strain-Induced Anisotropy in Amorphous Alloys and the Effect of Toroid Diameter on Magnetic Properties", published in IEEE Transactions on Magnetic, vol. MAG-15, No. 6, Nov., 1979.
"Metallic Glasses-A New Technology"; J. J. Gilman, published in 1977 by North-Holland Publishing Co.

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