Processing amorphous metal into packets by bonding with low melting point material
US4413406A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 19, 1981 |
| Grant date | Nov 8, 1983 |
| Priority date | — |
| Expiry date | Mar 19, 2001 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49078
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.