HIGH STACK FACTOR AMORPHOUS METAL RIBBON AND TRANSFORMER CORE

PROBLEM TO BE SOLVED: To provide a transformer core using a high lamination factor amorphous metal. SOLUTION: The amorphous metal ribbon exhibits a lamination factor of 86% or greater in accordance with ASTM A900-91 and a width of 170 mm. For producing the amorphous metal ribbon, molten metal is cas...

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Hauptverfasser: DECRISTOFARO NICHOLAS, NGO DUNG A, BRIGGS MICHAEL L, BYE RICHARD L JR
Format: Patent
Sprache:eng
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Zusammenfassung:PROBLEM TO BE SOLVED: To provide a transformer core using a high lamination factor amorphous metal. SOLUTION: The amorphous metal ribbon exhibits a lamination factor of 86% or greater in accordance with ASTM A900-91 and a width of 170 mm. For producing the amorphous metal ribbon, molten metal is cast through a nozzle having a single slot onto the surface of a rotating casting wheel so as to form a ribbon-shaped body, the ribbon-shaped body is chilled at a cooling rate of 105 K/s so as to form an amorphous metal ribbon, and then, the surface of the casting wheel is contacted with an abrasive material having a mean abrasive particle size of