发明名称 |
IRON-BASED SOFT MAGNETIC POWDER FOR DUST CORE, METHOD FOR MANUFACTURING THE SAME, AND DUST CORE |
摘要 |
An iron-based soft magnetic powder for dust core having a high magnetic flux density, maintaining high electric insulation even after annealing, and more excellent in the mechanical strength in which a coating film having a phosphate conversion coating film is formed on the surface thereof and the peak height for the absorption of hydroxyl groups formed at 3700 cm−1 to 2500 cm−1 is 0.04 or more being indicated by absorbance when the coating film is analyzed by infrared diffuse reflectance spectroscopy.
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申请公布号 |
US2010212455(A1) |
申请公布日期 |
2010.08.26 |
申请号 |
US20090648684 |
申请日期 |
2009.12.29 |
申请人 |
KABUSHIKI KAISHA KOBE SEIKO SHO (KOBE STEEL LTD) |
发明人 |
OHWAKI TAKESHI;MITANI HIROYUKI;HOJO HIROFUMI;YANAGISAWA KASUMI;AKAGI NOBUAKI |
分类号 |
B22F1/02;B05D3/02;B05D7/00;B22F9/00;H01F1/03 |
主分类号 |
B22F1/02 |
代理机构 |
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代理人 |
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地址 |
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