Magnetic annealing of amorphous alloy for motor stators
AssigneeElectric Power Research Institute, Inc.
InventorsBen Lee Damsky, Jan Stein
Life of this patent
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Abstract
A magnetically annealed amorphous metal motor stator is manufactured by magnetically annealing individually the stator yoke and stator teeth and then assembling the components to form a stator so that the field is radial in the teeth and varies or is circumferential in the yoke.
Claims7
A method for preparing a motor stator comprising providing a stator whose teeth are made of magnetic steel and whose yoke is made of thin strip amorphous metal alloy, imposing a magnetic field on said stator to produce a field circumferentially in the yoke with said magnetic field being applied at such a temperature as to effect magnetic annealing of the yoke without disturbing the magnetic field of the teeth.
Dependencies are inferred from the claim text.