公开(公告)号：US08157929B2

公开(公告)日：2012-04-17

申请号：US12526881

申请日：2008-02-12

申请人： Shin-ichiro Yokoyama ,  Yasuyuki Ilda ,  Hakaru Sasaki ,  Yoji Ishikura ,  Hiromitsu Itabashi ,  Masahiro Mita ,  Yoshiyuki Fujihara

发明人： Shin-ichiro Yokoyama ,  Yasuyuki Ilda ,  Hakaru Sasaki ,  Yoji Ishikura ,  Hiromitsu Itabashi ,  Masahiro Mita ,  Yoshiyuki Fujihara

IPC分类号： H01F1/147

CPC分类号： H01F1/14708 ,  C22C19/002 ,  C22C19/03 ,  C22F1/10

摘要： Disclosed are: a magnetic shielding material having excellent magnetic shielding property at a low magnetic field; and a magnetic shielding component and a magnetic shielding room each using the magnetic shielding material. Specifically disclosed is a magnetic shielding material comprising the following components (by mass): Ni: 70.0-85.0%, Cu: 0.6% or less, Mo: 10.0% or less and Mn: 2.0% or less, with the remainder being substantially Fe. The magnetic shielding material has a relative magnetic permeability of 40,000 or more under a magnetic field of 0.05 A/m and a squareness ratio (Br/B0.8) of 0.85 or less, wherein the squareness ratio (Br/B0.8) is a ratio of a remanent magnetic flux density (Br) to a maximum magnetic flux density (B0.8) in a DC hysteresis curve produced under the maximum magnetic field of 0.8 A/m.

摘要翻译： 公开了一种在低磁场下具有优异的磁屏蔽性能的磁屏蔽材料; 以及各自使用磁屏蔽材料的磁屏蔽部件和磁屏蔽室。 具体公开了包含以下成分（以质量计）的磁屏蔽材料：Ni：70.0-85.0％，Cu：0.6％以下，Mo：10.0％以下，Mn：2.0％以下，余量实质上为Fe 。 磁屏蔽材料的磁导度为0.05A / m，矩形比（Br / B0.8）为0.85以下，相对磁导率为40,000以上，矩形比（Br / B0.8）为 在0.8A / m的最大磁场下产生的直流磁滞曲线中的残留磁通密度（Br）与最大磁通密度（B0.8）的比率。

公开(公告)号：US20100047111A1

公开(公告)日：2010-02-25

申请号：US12526881

申请日：2008-02-12

申请人： Shin-ichiro Yokoyama ,  Yasuyuki Iida ,  Hakaru Sasaki ,  Yoji Ishikura ,  Hiromitsu Itabashi ,  Masahiro Mita ,  Yoshiyuki Fujihara

发明人： Shin-ichiro Yokoyama ,  Yasuyuki Iida ,  Hakaru Sasaki ,  Yoji Ishikura ,  Hiromitsu Itabashi ,  Masahiro Mita ,  Yoshiyuki Fujihara

IPC分类号： C22C19/03

CPC分类号： H01F1/14708 ,  C22C19/002 ,  C22C19/03 ,  C22F1/10

摘要： Disclosed are: a magnetic shielding material having excellent magnetic shielding property at a low magnetic field; and a magnetic shielding component and a magnetic shielding room each using the magnetic shielding material. Specifically disclosed is a magnetic shielding material comprising the following components (by mass): Ni: 70.0-85.0%, Cu: 0.6% or less, Mo: 10.0% or less and Mn: 2.0% or less, with the remainder being substantially Fe. The magnetic shielding material has a relative magnetic permeability of 40,000 or more under a magnetic field of 0.05 A/m and a squareness ratio (Br/B0.8) of 0.85 or less, wherein the squareness ratio (Br/B0.8) is a ratio of a remanent magnetic flux density (Br) to a maximum magnetic flux density (B0.8) in a DC hysteresis curve produced under the maximum magnetic field of 0.8 A/m.

摘要翻译： 公开了一种在低磁场下具有优异的磁屏蔽性能的磁屏蔽材料; 以及各自使用磁屏蔽材料的磁屏蔽部件和磁屏蔽室。 具体公开了包含以下成分（以质量计）的磁屏蔽材料：Ni：70.0-85.0％，Cu：0.6％以下，Mo：10.0％以下，Mn：2.0％以下，余量实质上为Fe 。 磁屏蔽材料的磁导度为0.05A / m，矩形比（Br / B0.8）为0.85以下，相对磁导率为40,000以上，矩形比（Br / B0.8）为 在0.8A / m的最大磁场下产生的直流磁滞曲线中的残留磁通密度（Br）与最大磁通密度（B0.8）的比率。