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公开(公告)号:US20160303652A1
公开(公告)日:2016-10-20
申请号:US14442217
申请日:2013-12-02
IPC分类号: B22F1/00 , C22C38/06 , C22C38/04 , C22C38/02 , C22C38/00 , H01F3/08 , B22F9/20 , C21D3/04 , C21D3/02 , C21D1/26 , H01F1/20 , C22C38/18 , B22F9/08
CPC分类号: B22F1/0062 , B22F1/0014 , B22F9/082 , B22F9/20 , B22F2009/0828 , B22F2301/35 , B22F2304/10 , B22F2998/10 , C21D1/26 , C21D3/02 , C21D3/04 , C22C33/02 , C22C38/00 , C22C38/001 , C22C38/002 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/18 , C22C2202/02 , H01F1/20 , H01F3/08
摘要: The present invention provides iron powder for dust cores that has excellent compressibility and low iron loss after formation. In the iron powder for dust cores, Si content is 0.01 mass % or less, apparent density is 3.8 g/cm3 or more, the ratio of iron powder particles with a particle size of 45 μm or less is 10 mass % or less, the ratio of iron powder particles with a particle size of over 180 μm and 250 μm or less is less than 30 mass %, the ratio of iron powder particles with a particle size of over 250 μm is 10 mass % or less, and the Vickers hardness (test force: 0.245 N) of a powder cross-section is 80 Hv or less.
摘要翻译: 本发明提供了具有优异的压缩性和形成后的低铁损的防尘芯铁粉。 作为防尘芯铁粉末,Si含量为0.01质量%以下,表观密度为3.8g / cm 3以上,粒径为45μm以下的铁粉末的比例为10质量%以下, 粒径为180μm以上且250μm以下的铁粉粒子的比例小于30质量%,粒径超过250μm的铁粉粒子的比例为10质量%以下,维氏硬度 (试验力:0.245N)的粉末截面为80Hv以下。