发明名称 |
POWDER MAGNETIC CORE AND IRON-BASE POWDER FOR POWDER MAGNETIC CORE |
摘要 |
<p>The present invention relates to an iron-base powder for a powder core, wherein when cross-sections of at least 50 iron-base powders are observed and a crystal grain size distribution containing at least a maximum crystal grain size is determined by measuring a crystal grain size of each iron-base powder, 70% or more of the measured crystal grains are a crystal grain having a crystal grain size of 50 µm or more. According to the iron-base powder of the invention, a coercivity of the powder core can be made small and a hysteresis loss can be reduced.</p> |
申请公布号 |
EP2060344(A1) |
申请公布日期 |
2009.05.20 |
申请号 |
EP20070807069 |
申请日期 |
2007.09.11 |
申请人 |
KABUSHIKI KAISHA KOBE SEIKO SHO |
发明人 |
MITANI, HIROYUKI;AKAGI, NOBUAKI;HOUJOU, HIROFUMI;ISHIHARA, CHIO;IWAKIRI, MAKOTO;YAMADA, SOHEI;MOCHIMIZO, YASUKUNI |
分类号 |
B22F1/00;B22F1/02;H01F1/24;H01F1/26;H01F41/02 |
主分类号 |
B22F1/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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