| 摘要 |
PROBLEM TO BE SOLVED: To provide a rotor support for a motor, which is suitable for an axial gap motor, and to provide a method for manufacturing the same.SOLUTION: A support for supporting a magnetic body arranged on the rotor of a motor is constituted of a non-magnetic cast steel which has a composition including, by mass, ≤0.3% of C, 0.1-2.0% of Si, 10-25% of Mn, 10-23% of Cr, and 0.3-0.8% of N, and optionally, one or more of 0.4-1.5% of V, ≤1.5% of Nb in terms of V+Nb, ≤0.02% of Al, ≤5.0% of Ni, ≤3.0% of Mo+1/2W, ≤3.0% of Co, and ≤0.01% of B, and the balance Fe with inevitable impurities. The support suitably has such characteristics that specific magnetic permeability is <1.005 and the 0.2% proof stress is ≥550 MPa at room temperature. |
