Metal fusion bonding – Process – Specific mode of heating or applying pressure
Patent
1987-07-24
1988-11-08
Godici, Nicholas P.
Metal fusion bonding
Process
Specific mode of heating or applying pressure
228190, 228199, 228 443, 228 30, 164463, 164477, 148403, 148103, 72700, B23K 2004, H01F 102
Patent
active
047829940
ABSTRACT:
An apparatus for the in-line annealing of amorphous strip includes feed rolls for substantially continuously feeding the strip during annealing. The strip is first fed into a nip of cooperating heated pressure rolls. The heated pressure rolls rapidly heat the strip to an annealing temperature at a rate of substantially 10.sup.2 -10.sup.4 .degree.C./second while also subjecting the strip to localized plastic deformation. Where multiple ribbons are being fed simultaneously through the heating pressure rolls, bonding occurs to produce a composite strip. The strip is fed from the pressure rolls through an in-line annealer immediately downstream from the pressure rolls. During annealing, the strip is continuously fed and maintained under tension by operation of a winding roll. The strip is annealed at a temperature of between 420.degree.-510.degree. C. for 0.01-10.0 minutes. Torque of between 200-600 inch pounds is applied to the strip both during annealing and as the strip cools to room temperature prior to winding. An associated method is also disclosed.
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Esposito Anthony J.
Raybould Derek
Sawhney Dulari L.
Electric Power Research Institute Inc.
Godici Nicholas P.
Heinrich Samuel M.
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