METHOD FOR PRODUCING FE-BASED NANOCRYSTALLINE ALLOY RIBBON, METHOD FOR PRODUCING MAGNETIC CORE, FE-BASED NANOCRYSTALLINE ALLOY RIBBON, AND MAGNETIC CORE

A method for producing an Fe-based nanocrystalline alloy ribbon, the method including a step of supplying a molten Fe-based alloy onto a rotating chill roll, and rapidly solidifying the molten Fe-based alloy that has been supplied onto the chill roll, thereby obtaining an Fe-based amorphous alloy ri...

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Bibliographische Detailangaben
Hauptverfasser: MORITSUGU, Nakao, SUNAKAWA, Jun
Format: Patent
Sprache:eng
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Zusammenfassung:A method for producing an Fe-based nanocrystalline alloy ribbon, the method including a step of supplying a molten Fe-based alloy onto a rotating chill roll, and rapidly solidifying the molten Fe-based alloy that has been supplied onto the chill roll, thereby obtaining an Fe-based amorphous alloy ribbon having a free solidified surface and a roll contact surface, and a step of heat-treating the Fe-based amorphous alloy ribbon, thereby obtaining an Fe-based nanocrystalline alloy ribbon; wherein an outer peripheral part of the chill roll is composed of a Cu alloy, and a thermal conductivity of the outer peripheral part is from 70 W/(m·K) to 225 W/(m·K).