Proceedings of the Korean Powder Metallurgy Institute Conference (한국분말야금학회:학술대회논문집)
- 2006.09b
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- Pages.799-800
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- 2006
Development of Superior Fe-Si Sintered Magnetic Cores Equivalent to Wrought Si-steels
- Hamano, Aya (Department of PM Research and Development Center, Hitachi Powdered Metals Co., Ltd.) ;
- Isihara, Chio (Department of PM Research and Development Center, Hitachi Powdered Metals Co., Ltd.) ;
- Asaka, Kazuo (Department of PM Research and Development Center, Hitachi Powdered Metals Co., Ltd.)
- Published : 2006.09.24
Abstract
Wrought Si-steels are generally used for electromagnetic valves, which are needed good response. To date, Hitachi Powdered Metals Co., Ltd. have produced Fe-Si base sintered magnetic material, EU-52, which shows a magnetic flux density of more than 1.25T at 2000A/m and a maximum permeability of more than 3500. However these magnetic properties are lower than that of wrought Si-steels. Because EU-52 has a low density of