特集 電力用電磁機器の高効率化へ向けた磁性材料活用技術
面圧縮力による電磁鋼板の磁気特性測定と特性改善
2018 年 26 巻 3 号 p. 468-472
詳細
2018 年 26 巻 3 号 p. 468-472
When compressive stress is applied to electrical steel sheets in their thickness direction, both permeability and magnetic losses change. The stress induced loss reduction was observed both ring and strip specimens, and they are mainly from hysteresis loss change due to the stress. Magnetizing process due to the stress is discussed by means of domain observations.
