Abstract

Generally the magnetic steel sheet was used for the stator core material of the motor so far. In recent years, Soft Magnetic Composite (SMC) attracts attention as a material replaced with the magnetic steel sheet. Magnetic property depends for SMC on fabrication density. The fabrication density of SMC goes up by improvement in manufacture technology, and it is becoming close to the magnetic property of the magnetic steel sheet. In this paper, the influence which it has on the motor property of the fabrication density of SMC is discussed. Property comparison by Ring Test Piece and a motor was done about the fabrication density of 7.5g/cm3, 7.7g/cm3 SMC, and the magnetic steel sheet. When it was 7.7g/cm3 in fabrication density as a result, it was shown that it is in a practical use level as a motor core.

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