公开(公告)号：US5415703A

公开(公告)日：1995-05-16

申请号：US022412

申请日：1993-02-16

申请人： Yoshiyuki Ushigami ,  Norito Abe ,  Sadami Kousaka ,  Tadao Nozawa ,  Osamu Honjo ,  Tadashi Nakayama

发明人： Yoshiyuki Ushigami ,  Norito Abe ,  Sadami Kousaka ,  Tadao Nozawa ,  Osamu Honjo ,  Tadashi Nakayama

IPC分类号： C21D8/12 ,  H01F1/147

CPC分类号： H01F1/14775 ,  C21D8/1233 ,  C21D8/1244

摘要： A very thin electrical steel strip having a thickness not exceeding 150 microns, an average grain diameter not exceeding 1.0 mm, a high degree of {110} grain orientation, a high normalized magnetic flux density as expressed by a B.sub.8 /B.sub.s value which is greater than 0.9, and a low core loss not exceeding 50% of the core loss of any conventional product.It is produced from a starting material consisting of a grain-oriented electrical steel strip containing not more than 8% silicon, the balance thereof substantially being iron, and having a high degree of {110} grain orientation, a normalized magnetic flux density as expressed by a B.sub.8 /B.sub.s value which is greater than 0.9, an average grain diameter of at least 20 mm in the rolling direction and an average grain diameter of at least 40 mm in the direction perpendicular to the rolling direction. The material is cold rolled with a reduction of 60 to 80% to a final thickness not exceeding 150 microns, and the cold rolled material is annealed for primary recrystallization. The use of a starting material further containing 0.005 to 0.30% of one or both of tin and antimony yields a product of still improved properties.

摘要翻译： 厚度不超过150微米，平均粒径不超过1.0毫米，{110} <001>晶粒取向高度的非常薄的电工钢带，由B8 / Bs值表示的高归一化磁通密度 其大于0.9，并且低铁损不超过任何常规产品的铁损的50％。 由含有不超过8％硅的晶粒取向电工钢板，其余基本上为铁，并具有高度{110} <001>晶粒取向的起始材料制成，归一化磁通量 由B8 / Bs值大于0.9表示，在轧制方向的平均粒径至少为20mm，平均粒径在与轧制方向垂直的方向上至少为40mm。 将材料冷轧至60-80％，最终厚度不超过150微米，冷轧材料进行一次再结晶退火。 使用进一步含有0.005〜0.30％的锡和锑中的一种或两种的起始材料得到仍具有改进性能的产品。