| 摘要 |
PROBLEM TO BE SOLVED: To enhance intrinsic resistance by increasing alloy amount of a nonoriented electromagnetic steel sheet and improve manufacturability deteriorated with increase of alloy content in a technology achieving low iron loss, where needs for high efficiency of various rotaries such as a power generator, a motor for automobile driving and electric, a compressor for refrigerator or air conditioner are high and the nonoriented electromagnetic steel sheet used as an iron core material is continuously requested to reduce iron loss and increasing magnetic flux density.SOLUTION: In a nonoriented electromagnetic steel sheet with high intrinsic resistance containing Si:over 3.0% and 3.6% or less, Mn:0.5% to 1.5%, Al:0.5% to 1.5%, toughness of a raw material is secured, manufacturability is improved, and breaking especially during cold rolling is effectively avoided by controlling the C amount depending of Si and Al contents.SELECTED DRAWING: None |
