Process for the treatment of a thin brittle metal strip and magnetic components produced from a strip made of a nanocrystalline alloy
AssigneeImphy Ugine Precision
InventorsJean-Pierre Reyal, Francis Schmit
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Abstract
The invention concerns a treatment method which consists in coating at least one surface of a brittle thin metal strip (1) with a coating film (3, 3′) comprising at least a polymer material, to obtain on the strip an adhering coat with a thickness ranging between 1 and 100 μm, modifying the working and breaking properties of the brittle thin strip (1); then carrying out a step wherein the brittle thin metal strip (1) is subjected to stresses, such as a cutting operation, on the brittle thin metal strip (1) coated with the film coating (3, 3′). The method is particularly useful for producing magnetic parts from strips or ribbons with nonocrystalline structure.
Claims6
A magnetic component made of a magnetic alloy in nanocrystalline form, characterized in that it is produced in a laminated form and in that it comprises at least one strip made of a magnetic material in nanocrystalline form and at least one coating layer comprising at least one polymer material superposed on the strip made of nanocrystalline magnetic alloy and adhering to this strip made of nanocrystalline magnetic alloy.
The magnetic component as claimed in claim 2, characterized in that it constitutes a flat transformer component (26a, 26b, 26c) having the shape of an E, an I or a U.
The magnetic component as claimed in claim 25, characterized in that it constitutes a slit torus (27c) having a gap (27c) in the radial direction.
Dependencies are inferred from the claim text.