摘要 |
PROBLEM TO BE SOLVED: To provide a stepping motor, having a high torque at a high frequency. SOLUTION: The stepping motor comprises a stator yoke, in which a part or an entirety of the yoke is formed of a ferrite Fe-Cr-Al alloy. In this case, the yoke is made of an alloy containing C of 0.05% or less, Si of 1.0% or less, Mn of 1.0% or less, P of 0.004% or less, Si of 0.001% or less, Cr of 8.0 to 16.0%, N of 0.05% or less, Al of 0.8 to 3.5% and Ti of 0.3% or less (containing 0% additives).
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