发明公开
EP2738282A1 Fe-BASED AMORPHOUS ALLOY, AND DUST CORE OBTAINED USING Fe-BASED AMORPHOUS ALLOY POWDER
有权
非晶态合金铁基和粉末CORE由非晶态合金粉对铁基
- 专利标题： Fe-BASED AMORPHOUS ALLOY, AND DUST CORE OBTAINED USING Fe-BASED AMORPHOUS ALLOY POWDER
- 专利标题（中）： 非晶态合金铁基和粉末CORE由非晶态合金粉对铁基
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申请号： EP12818253.2申请日： 2012-07-26
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公开(公告)号： EP2738282A1公开(公告)日： 2014-06-04
- 发明人: TAKADATE, Kinshiro , KOSHIBA, Hisato
- 申请人： Alps Green Devices Co., Ltd.
- 申请人地址： 1-7 Yukigaya-Otsukamachi Ota-ku, Tokyo 145-8501 JP
- 专利权人： Alps Green Devices Co., Ltd.
- 当前专利权人： Alps Green Devices Co., Ltd.
- 当前专利权人地址： 1-7 Yukigaya-Otsukamachi Ota-ku, Tokyo 145-8501 JP
- 代理机构： Klunker . Schmitt-Nilson . Hirsch
- 优先权： JP2011165020 20110728; JP2012151424 20120705
- 国际公布： WO2013015361 20130131
- 主分类号： C22C45/02
- IPC分类号： C22C45/02 ; B22F1/00 ; H01F1/153 ; H01F1/26
摘要：
[Object] To provide an Fe-based amorphous alloy having a glass transition temperature (Tg) and capable of exhibiting a high saturation magnetic flux density Bs, and a dust core made using a powder of the Fe-based amorphous alloy.
[Solution] The compositional formula of an Fe-based amorphous alloy of the present invention is (Fe 100-a-b-c-de Cr a P b C c B d Si e (a, b, c, d, and e are in terms of at%), where 0 at % ≤ a ≤ 1.9 at%, 1.7 at % ≤ b ≤ 8.0 at %, 0 at% ≤ e ≤ 1.0 at %, an Fe content (100-a-b-c-d-e) is 77 at % or more, 19 at % ≤ b + c + d + e ≤ 21.1 at%, 0.08 ≤ b/(b + c + d) ≤ 0.43, 0.06 ≤ c/(c + d) ≤ 0.87, and the Fe-based amorphous alloy has a glass transition temperature (Tg).
[Solution] The compositional formula of an Fe-based amorphous alloy of the present invention is (Fe 100-a-b-c-de Cr a P b C c B d Si e (a, b, c, d, and e are in terms of at%), where 0 at % ≤ a ≤ 1.9 at%, 1.7 at % ≤ b ≤ 8.0 at %, 0 at% ≤ e ≤ 1.0 at %, an Fe content (100-a-b-c-d-e) is 77 at % or more, 19 at % ≤ b + c + d + e ≤ 21.1 at%, 0.08 ≤ b/(b + c + d) ≤ 0.43, 0.06 ≤ c/(c + d) ≤ 0.87, and the Fe-based amorphous alloy has a glass transition temperature (Tg).
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