Steel sheet for non-oriented electrical steel sheet

Provided is a steel sheet for a non-oriented electrical steel sheet, which contains 0.0040% or less of C, 1.9% to 3.5% (inclusive) of Si, 0.10% to 3.0% (inclusive) of Al, 0.10% to 2.0% (inclusive) of Mn, 0.09% or less of P, 0.005% or less of S, 0.0040% or less of N, 0.0060% or less of B, and the bal...

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1. Verfasser: ICHIE TAKERU
Format: Patent
Sprache:chi ; eng
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Zusammenfassung:Provided is a steel sheet for a non-oriented electrical steel sheet, which contains 0.0040% or less of C, 1.9% to 3.5% (inclusive) of Si, 0.10% to 3.0% (inclusive) of Al, 0.10% to 2.0% (inclusive) of Mn, 0.09% or less of P, 0.005% or less of S, 0.0040% or less of N, 0.0060% or less of B, and the balance of Fe and unavoidable impurities. The remainder comprising Fe and impurities; the recrystallization rate of the cross-sectional structure in the plate thickness direction at each position 10 mm from both ends in the plate width direction to the plate width center is less than 50%; when the plate width is W, the recrystallization rate of the cross-sectional structure in the plate thickness direction at a position 1/4 W from each of the two ends in the plate width direction is 50% or more. 提供一种如下的无取向性电磁钢板用钢板:含有:C:0.0040%以下、Si:1.9%以上3.5%以下、Al:0.10%以上3.0%以下、Mn:0.10%以上2.0%以下、P:0.09%以下、S:0.005%以下、N:0.0040%以下、B:0.0060%以下;剩余部分由Fe和杂质构成;分别从板宽方向的两端部向板宽中央10mm的各位置的板厚方向截面组织的重结晶率不足50%;将板宽记为W时,分别距板宽方向的两端部1/4W的位置的板厚方向截面组织的重结晶率