Curvature-reduction annealing of amorphous metal alloy ribbon

Details Curvature-reduction annealing of amorphous metal alloy ribbon Curvature-reduction annealing of amorphous metal alloy ribbon

1995-10-02

1997-11-04

Mullen, Thomas

Communications: electrical

Condition responsive indicating system

Specific condition

148121, G08B 1314

Patent

active

056844590

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.

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patent: 4744838 (1988-05-01), Lin et al.
patent: 5252144 (1993-10-01), Martis
patent: 5469140 (1995-11-01), Liu et al.

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