公开(公告)号：US20090197063A1

公开(公告)日：2009-08-06

申请号：US12162669

申请日：2007-01-25

申请人： Fumio Uchikiba ,  Tsutomu Otsuka ,  Mitsugu Kawarai

发明人： Fumio Uchikiba ,  Tsutomu Otsuka ,  Mitsugu Kawarai

IPC分类号： B32B5/16 ,  B05D5/12

CPC分类号： H01F1/26 ,  B29C70/62 ,  B29K2995/0008 ,  H01F41/16 ,  Y10T428/25

摘要： Provided are composite magnetic sheet which has excellent magnetic properties while high strength and thickness reduction are realized and a method of producing the composite magnetic sheet. The composite magnetic sheet 1 includes at least a resin 20 and a metal magnetic powder 10. The metal magnetic powder 10 contains flat powder having a major axis and a minor axis, the flat powder having a diameter of the major axis in the range of not less than 5 μm and not more than 80 μm and having an aspect ratio defined by a dimension ratio between the major axis and the minor axis in the range of not less than 5 and not more than 20. In the composite magnetic sheet 1, the metal magnetic powder 10 is dispersed so that the major axis is aligned parallel along the surface of the composite magnetic sheet 1.

摘要翻译： 提供了具有优异的磁特性并实现高强度和厚度减少的复合磁性片以及复合磁性片的制造方法。 复合磁性片1至少包括树脂20和金属磁性粉末10.金属磁性粉末10包含具有长轴和短轴的扁平粉末，扁平粉末的长轴直径不在范围内 小于5μm且不大于80μm，并且具有由长轴和短轴之间的尺寸比限定在不小于5且不大于20的范围内的纵横比。在复合磁性片1中， 分散金属磁性粉末10，使得长轴沿着复合磁性薄片1的表面平行排列。