Curvature-reduction annealing of amorphous metal alloy ribbon
US5684459A · kind A · utility
9Cited by
6References
31Claims
0Family size
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Key dates
| Filing date | Oct 2, 1995 |
| Grant date | Nov 4, 1997 |
| Priority date | — |
| Expiry date | Oct 2, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG08B13/2442
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A longitudinal curvature in an amorphous metal alloy ribbon is reduced by heat-treatment. While the heat-treatment occurs, the alloy ribbon is bent "backwards" against the longitudinal curvature, to reduce the amount of heat-treatment required. The process is carried out continuously by transporting the alloy ribbon from reel to reel, while wrapping the ribbon around a heated roller. Using a discrete strip cut from the alloy ribbon subjected to the curvature-reducing process, a magnetomechanical EAS marker is constructed that has a relatively low profile, while retaining desired magnetic properties.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.