专利名称：HIGH-COMPRESSIBILITY IRON POWDER,
IRON POWDER COMPRISING THE SAME FOR
DUST CORE, AND DUST CORE
发明人：MAETANI, Toshio,UENOSONO, Satoshi,UETA,
Masateru
申请号：EP07708007.5
申请日：20070130
公开号：EP2108472A1
公开日：
20091014
专利内容由知识产权出版社提供
专利附图：
摘要：High compressibility iron powder that is suitably used for parts with excellent
magnetic characteristics or high density sintered parts and that has good productivity is provided from pure iron powder which includes, as impurities in percent by mass, C:
0.005% or less, Si: more than 0.01% and 0.03% or less, Mn: 0.03% or more and 0.07% or less, P: 0.01% or less, S: 0.01% or less, O: 0.10% or less, and N: 0.001% or less, and whose particle includes four or less crystal grains on average and has a micro Vickers hardness (Hv) of 80 or less on average. The circularity of the iron powder is preferably 0.7 or more.
申请人：JFE Steel Corporation
地址：2-3, Uchisaiwai-cho 2-chome Chiyoda-ku Tokyo, 100-0011 JP
less is more代言人国籍：JP
代理机构：Grünecker, Kinkeldey, Stockmair & Schwanhäusser Anwaltssozietät
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