MANUFACTURING APPARATUS AND ITS METHOD FOR SOFT MAGNETIC BMG SHEET AND PLATE WITHOUT CASTING DEFECTS BY MEANS OF SEMI-CENTRIFUGAL CASTING

摘要

PURPOSE: An apparatus and a method for manufacturing a soft-magnetic BMG sheet using centrifugal force are provided to manufacture sheets having various thicknesses by installing a thickness adjusting ring between upper and lower molds. CONSTITUTION: An apparatus for manufacturing a soft-magnetic BMG sheet using centrifugal force comprises a vacuum melting unit, a vacuum centrifugal casting unit, a mold preheating unit, a rotating unit, and a vacuum exhaust unit. The vacuum centrifugal casting unit comprises upper and lower molds and a thickness adjusting ring. The vacuum melting unit melts a Bulk Metallic Glass material. The mold preheating unit preheats the upper molds. The rotating device rotates the melted BMG material to form a BMG sheet.