公开(公告)号：US20090220372A1

公开(公告)日：2009-09-03

申请号：US11921021

申请日：2006-05-23

申请人： Takeshi Hattori ,  Shin Tajima ,  Masaki Sugiyama ,  Hidefumi Kishimoto ,  Toshiya Yamaguchi ,  Tadayoshi Kikkou

发明人： Takeshi Hattori ,  Shin Tajima ,  Masaki Sugiyama ,  Hidefumi Kishimoto ,  Toshiya Yamaguchi ,  Tadayoshi Kikkou

IPC分类号： B22F3/12 ,  H01F1/26 ,  C22C38/00 ,  C22C38/02

CPC分类号： H01F3/08 ,  C22C38/02 ,  H01F1/14766 ,  H01F1/15375 ,  H01F1/26 ,  H01F41/0246 ,  H01L41/20

摘要： Disclosed is a low cost, low magnetostriction body which is decreased only in magnetostriction while maintaining magnetic characteristics such as loss and saturation magnetization at desired values. Also disclosed is a dust core using such a low magnetostriction body. Specifically disclosed is a low magnetostriction body obtained by shaping a soft magnetic material powder added with an organic compound having an effect of changing the magnetostriction of the soft magnetic material when combined with it, and heat-treating a green compact in an inert atmosphere. The absolute value of the magnetostriction λO-P (1 T/50 Hz) of the low magnetostriction body is not more than 1.0×10−6. Also specifically disclosed is a dust core using such a low magnetostriction body.

摘要翻译： 公开了一种低成本，低磁致伸缩体，其仅在磁致伸缩中减小，同时将磁特性（例如损耗和饱和磁化强度）保持在期望值。 还公开了使用这种低磁致伸缩体的防尘芯。 具体公开了一种低磁致伸缩体，其通过加成有机化合物的软磁性材料粉末而形成，该有机化合物与其结合时具有改变软磁性材料的磁致伸缩效应，并且在惰性气氛中对生坯进行热处理。 低磁致伸缩体的磁致伸缩λO-P（1T / 50Hz）的绝对值不大于1.0×10 -6。 还具体公开了使用这种低磁致伸缩体的集尘芯。