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1. 发明专利

JP2012129217A Pulverulent body to be pressure-molded for powder magnetic core and method for producing powder magnetic core 审中-公开
标题翻译：用于粉末磁芯的压力成型体和用于生产粉末磁芯的方法
公开(公告)号：JP2012129217A
公开(公告)日：2012-07-05
申请号：JP2010272564
申请日：2010-12-07
申请人： Daido Steel Co Ltd , 大同特殊鋼株式会社
发明人： TAKAGI SHINOBU , TAKEMOTO SATOSHI
IPC分类号： H01F1/20 , B22F1/00 , B22F1/02 , B22F3/00 , B22F3/24 , H01F41/02
摘要： PROBLEM TO BE SOLVED: To provide a method for producing a powder magnetic core which reduces iron loss, and to provide a pulverulent body to be pressure-molded for the powder magnetic core.SOLUTION: The pulverulent body is composed of a mixed power of a coagulation prevention powder (3) and a pure Fe powder (2) made of pure Fe. The coagulation prevention powder that is composed of at least one from among MgO, TiOand AlOis provided on a part of the pure Fe powder surface. Further, a binder (5) is provided on the whole pure Fe powder surface so as to cover it. The manufacturing method comprises: a step of obtaining the pure Fe powder with an atomizing method; an intermediate mixing step of mixing the pure Fe powder with the coagulation prevention powder to obtain an intermediate powder composed of an intermediate powder that is the pure Fe powder of having the coagulation prevention powder provided at a part of the pure Fe powder surface; a heat-treatment step of heat-treating the intermediate powder to remove a distortion accumulated inside of the pure Fe powder; a mixing step of mixing the intermediate powder with the binder to obtain a mixture containing the binder and an Fe powder composed of the pure Fe powder having the binder provided so as to cover the whole pure Fe powder surface; and a molding step of pressure-molding the mixture.
摘要翻译：解决的问题：提供一种制造减少铁损的粉末磁芯的方法，并提供用于粉末磁芯的压模的粉状体。解决方案：粉末体由防凝粉（3）和纯Fe制成的纯Fe粉（2）的混合动力组成。由MgO，TiO 2 和Al 2

2. 发明专利

JP2010196123A Method for producing flattened soft magnetic powder, flattened soft magnetic powder and electromagnetic wave absorber 有权
标题翻译：扁平软磁粉，扁平软磁粉和电磁波吸收器的生产方法
公开(公告)号：JP2010196123A
公开(公告)日：2010-09-09
申请号：JP2009043353
申请日：2009-02-26
申请人： Daido Steel Co Ltd , 大同特殊鋼株式会社
发明人： TSUTSUI MIKIKO , TANAKA NOBUAKI , TAKEMOTO SATOSHI
IPC分类号： C21D6/00 , B22F1/00 , C22C38/00 , H01F1/147 , H01F1/20 , H05K9/00
摘要： PROBLEM TO BE SOLVED: To provide a flattened soft magnetic powder having high magnetic permeability compared with the conventional material.
SOLUTION: A first heat-treatment is applied to the soft magnetic powder as the prepared raw material. Successively, the soft magnetic powder to which the first heat-treatment is applied, is flattening-treated. Further, a second heat-treatment is applied to the flattening-treated soft magnetic powder and thus, the flattened soft magnetic powder having high magnetic permeability characteristic, is obtained. The first heat-treatment temperature is desirable to be in the range of 200-1200°C. In the flattened soft magnetic powder, the total generating ratio of the respective generating ratios of (111) phase and (200) phase, is ≥15%.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供与常规材料相比具有高磁导率的扁平软磁性粉末。解决方案：对作为制备原料的软磁性粉末进行第一次热处理。接着，对施加了第一次热处理的软磁性粉末进行扁平化处理。此外，对平坦化处理的软磁性粉末进行第二次热处理，得到具有高导磁率特性的扁平软磁性粉末。第一热处理温度优选在200-1200℃的范围内。在扁平软磁粉末中，（111）相和（200）相的各自发生率的总发生率为≥15％。版权所有（C）2010，JPO＆INPIT

3. 发明专利

JP2007012866A Compressed magnetic core for reactor 审中-公开
标题翻译：压电磁芯用于反应器
公开(公告)号：JP2007012866A
公开(公告)日：2007-01-18
申请号：JP2005191618
申请日：2005-06-30
申请人： Daido Steel Co Ltd , 大同特殊鋼株式会社
发明人： TAKEMOTO SATOSHI , SAITO TAKANOBU , YABUMI TAKAO
IPC分类号： H01F37/00 , H01F27/24 , H01F27/255
摘要： PROBLEM TO BE SOLVED: To provide a compressed magnetic core for a reactor which is smaller than a reactor magnetic core using a silicon steel plate containing 6.5% Fe in noise to cause a temperature rise on a surface.
SOLUTION: In the compressed particle magnetic core for the reactor having a plurality of gaps orthogonally crossing the magnetic path length, when an average value of the magnetic path length is defined as L (mm) and the total value of gap widths as Lg (mm), a relationship of 1×10
-3 ≤Lg/L≤1×10
-2 can be established.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：为了提供一种反应堆的压缩磁芯，该反应器的磁芯小于使用含有6.5％Fe的硅钢板的反应堆磁芯，导致表面温度上升。解决方案：在具有正交于磁路长度的多个间隙的电抗器的压缩颗粒磁芯中，当将磁路长度的平均值定义为L（mm），将间隙宽度的总和定义为 Lg（mm），可以建立1×10 -3 ≤Lg/L≤1×10 -2 的关系。版权所有（C）2007，JPO＆INPIT

4. 发明专利

JP2005150380A Flexible inductor 审中-公开
标题翻译：柔性电感器
公开(公告)号：JP2005150380A
公开(公告)日：2005-06-09
申请号：JP2003385509
申请日：2003-11-14
申请人： Daido Steel Co Ltd , 大同特殊鋼株式会社
发明人： TAKEMOTO SATOSHI , SAITOU TAKANOBU
IPC分类号： B22F3/00 , H01F1/26 , H01F27/255 , H01F37/00
摘要： PROBLEM TO BE SOLVED: To provide a flexible inductor that is low in initial permeability and reduced in the variation of permeability even under a high magnetic field.
SOLUTION: The flexible inductor is constituted in a molded body composed of soft magnetic powder and rubber and has form deformability. The molded body is obtained by kneading 60-80 vol.% of soft magnetic powder and 20-40 vol.% of rubber.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供初始磁导率低的柔性电感器，即使在高磁场下也可以减小磁导率的变化。解决方案：柔性电感器由软磁粉末和橡胶构成的成型体构成，具有形状变形性。通过捏合60-80体积％的软磁性粉末和20-40体积％的橡胶来获得成型体。版权所有（C）2005，JPO＆NCIPI

5. 发明专利

JP2005079530A Soft magnetic powder and dust core using it 审中-公开
标题翻译：软磁粉和软芯使用它
公开(公告)号：JP2005079530A
公开(公告)日：2005-03-24
申请号：JP2003311664
申请日：2003-09-03
申请人： Daido Steel Co Ltd , 大同特殊鋼株式会社
发明人： TAKEMOTO SATOSHI , SAITOU TAKANOBU
IPC分类号： B22F9/04 , B22F1/00 , B22F9/08 , C22C38/00 , H01F1/147 , H01F1/20 , H01F27/255
摘要： PROBLEM TO BE SOLVED: To provide a dust core having high initial permeability and excellent direct-current superposition characteristics and soft magnetic powder used for it. SOLUTION: Soft magnetic powder has an aspect ratio of 1.2 to 2 and a plurality of acute angle portions formed on the surface. A dust core has magnetic characteristics of μ 0 ≥100 and μ/μ 0 ≥0.8, expressing initial permeability as μ 0 and permeability at the time of magnetic field impression of 1600A/m as μ. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供具有高初始磁导率和优异的直流叠加特性的粉芯，以及用于其的软磁性粉末。解决方案：软磁粉末的纵横比为1.2-2，在表面上形成多个锐角部分。防尘芯具有μ 0 ≥100和μ/μ 0 ≥0.8的磁特性，表示初始磁导率为μ 0 ， 1600A / m的磁场印象时间为μ。版权所有（C）2005，JPO＆NCIPI

6. 发明专利

JP2003059710A Dust core 审中-公开
标题翻译： DUST CORE
公开(公告)号：JP2003059710A
公开(公告)日：2003-02-28
申请号：JP2002166075
申请日：2002-06-06
申请人： Daido Steel Co Ltd , 大同特殊鋼株式会社
发明人： TAKEMOTO SATOSHI , SAITOU TAKANOBU
IPC分类号： B22F1/00 , B22F1/02 , C22C38/00 , C22C45/02 , H01F1/153 , H01F1/24 , H01F3/08
CPC分类号： H01F1/15308
摘要： PROBLEM TO BE SOLVED: To provide a dust core which can be restrained from decreasing in permeability even if a strong magnetic field is applied and has a low core loss and new soft magnetic powder used for manufacturing the same.
SOLUTION: A dust core has a composition represented by a following formula, (Fe
1-f (Co+Ni)
f )
100-e-d-c-b-a M
e M'
d Si
c B
b X
a , (wherein, M is at least an element selected from Hf, Ta, Ti, Zr and Nb, M' is at least an element selected out of Sc, V, Cr, Mn, Mo, Pd, W, Pt, Zn, Sn and rare earth elements, X denotes at least an element selected from Cu, N, O, Al, P, S, Ca, Ga, Ge, As, Li, Be, Mg, Se, Sr, Cd, In, Sb, Te and Ba, and f, e, d, c, b and a are each so set as to satisfy following formulas, 0≤f≤30, 0≤e≤30, 0≤d≤20, 0≤c≤30, 1≤b≤30, and 0≤a≤50).
COPYRIGHT: (C)2003,JPO
摘要翻译：要解决的问题：为了提供即使施加强磁场并且具有低磁芯损耗也可以抑制渗透性降低的粉尘芯和用于制造这种磁芯的新的软磁性粉末。解决方案：防尘芯具有由下式表示的组成：（Fe1-f（Co + Ni）f）100-edcba Me M'd Sic Bb Xa（其中，M是至少一种选自Hf，Ta ，Ti，Zr和Nb中的至少一种元素，M'是选自Sc，V，Cr，Mn，Mo，Pd，W，Pt，Zn，Sn和稀土元素中的至少一种元素，X表示选自Cu ，N，O，Al，P，S，Ca，Ga，Ge，As，Li，Be，Mg，Se，Sr，Cd，In，Sb，Te和Ba以及f，e，d，c，b和 a分别设定为满足下列公式：0 <= f <= 30,0 <= e <= 30,0 <= d <= 20,0 <= c <= 30,1 <= b <= 30 ，0 <= a <= 50）。

7. 发明专利

JP2003037018A Method for manufacturing dust core 审中-公开
标题翻译：制造粉芯的方法
公开(公告)号：JP2003037018A
公开(公告)日：2003-02-07
申请号：JP2001221707
申请日：2001-07-23
申请人： Daido Steel Co Ltd , 大同特殊鋼株式会社
发明人： SAITOU TAKANOBU , TAKEMOTO SATOSHI
IPC分类号： H01F1/22 , H01F1/24 , H01F1/33 , H01F41/02
CPC分类号： H01F1/24
摘要： PROBLEM TO BE SOLVED: To manufacture a dust core in which an electrical resistance value is large and a core loss due to an eddy current is small.
SOLUTION: A manufacturing method contains a step of mixing a metal salt aqueous solution with soft magnetic powder for forming the mixture, to heat the mixture. The metal forms an oxide of electrical insulation.
COPYRIGHT: (C)2003,JPO
摘要翻译：要解决的问题：制造电阻值大且由于涡流引起的磁芯损耗小的防尘芯体。解决方案：制造方法包括将金属盐水溶液与用于形成混合物的软磁性粉末混合以加热混合物的步骤。金属形成电绝缘氧化物。

8. 发明专利

JP2012012657A METHOD OF MANUFACTURING Si-BASED MATERIAL 审中-公开
标题翻译：制备Si基材料的方法
公开(公告)号：JP2012012657A
公开(公告)日：2012-01-19
申请号：JP2010149748
申请日：2010-06-30
申请人： Daido Steel Co Ltd , 大同特殊鋼株式会社
发明人： TAKO YUICHIRO , KIMURA YUTA , KODAMA KENJI , TAKEMOTO SATOSHI
IPC分类号： B22F9/08 , C01B33/02 , C22C13/00 , C22C30/00 , C22C30/04 , H01M4/38
CPC分类号： Y02E60/12
摘要： PROBLEM TO BE SOLVED: To provide a method of manufacturing a Si-based material with good manufacturing efficiency.SOLUTION: The method includes: a step of pouring pure Si or pure Si and an alloy raw material X, comprising one or more elements selected from a 2A-group element, a transition element, a 2B-group element, a 3B-group element, and a 4B-group element of the long format of periodic table, in a carbon crucible 12 or a heat-resistant glass crucible 18 disposed in a carbon susceptor 16, heating the carbon crucible 12 or the carbon susceptor 16 by high-frequency induction heating, and dissolving the pure Si or pure Si and alloy raw material X in the crucible 12 or 18 to obtain a molten metal 14; and a step of obtaining the Si-based material from the molten metal 14 by using an atomizing method or roll rapid cooling method.
摘要翻译：要解决的问题：提供制造具有良好制造效率的Si基材料的方法。解决方案：该方法包括：将纯Si或纯Si和合金原料X倒入包括选自2A族元素，过渡元素，2B族元素，3B中的一种或多种元素的步骤 - 组元件和周期表长格式的4B族元件，在设置在碳基座16中的碳坩埚12或耐热玻璃坩埚18中，将碳坩埚12或碳基座16加热高感应加热，将纯Si或纯Si和合金原料X溶解在坩埚12或18中，得到熔融金属14; 以及通过使用雾化法或辊式快速冷却法从熔融金属14获得Si系材料的工序。版权所有（C）2012，JPO＆INPIT

9. 发明专利

JP2009176974A Injection molding soft-magnetic material, and soft-magnetic kneading material 审中-公开
标题翻译：注射成型软磁材料和软磁材料
公开(公告)号：JP2009176974A
公开(公告)日：2009-08-06
申请号：JP2008014403
申请日：2008-01-25
申请人： Daido Steel Co Ltd , 大同特殊鋼株式会社
发明人： EZAKI JUNICHI , TAKEMOTO SATOSHI , SAITO TAKANOBU
IPC分类号： H01F1/22 , B22F1/00 , B22F3/00 , C22C38/00
摘要： PROBLEM TO BE SOLVED: To provide an injection molding soft-magnetic material and a soft-magnetic kneading material which reduce magnetic core-losses.
SOLUTION: The injection molding soft-magnetic material contains a soft-magnetic powder and an organic high-molecule material. The powder of an Fe-radical soft-magnetic alloy containing Si: 7-9 mass% is used as the soft-magnetic powder. Also, the soft-magnetic kneading material contains a soft-magnetic material and the organic high-molecule material. The powder of the Fe-radical soft-magnetic alloy containing Si: 7-9 mass% is used as the soft-magnetic powder.
COPYRIGHT: (C)2009,JPO&INPIT

10. 发明专利

JP2007009288A Soft magnetic alloy powder 审中-公开
标题翻译：软磁合金粉
公开(公告)号：JP2007009288A
公开(公告)日：2007-01-18
申请号：JP2005193212
申请日：2005-06-30
申请人： Daido Steel Co Ltd , 大同特殊鋼株式会社
发明人： OKOCHI TAKAO , KONDO TETSUYA , TAKEMOTO SATOSHI , ASANO MITSUAKI
IPC分类号： C22C38/00 , B22F1/00 , B22F9/08 , C22C45/02 , H01F1/14 , H01F1/153 , H01F1/20
摘要： PROBLEM TO BE SOLVED: To provide soft magnetic alloy powder having excellent magnetic properties. SOLUTION: The soft magnetic alloy powder has a composition comprising, by mass, >0 to 7% Si, 2 to 5% B, 0.5 to 6% Nb, and the balance substantially Fe, wherein the average particle diameter of the powder obtained by performing water cooling after water atomization or gas atomization is 20 to 100 μm. Further, fine powder having an amorphous material forming ratio of >90 to 100 vol.% and the average particle diameter of 5 to 20 μm, and coarse powder having an amorphous material forming ratio of ≤90 vol.% and the average particle diameter of >20 to 100 μm are mixed at a weight ratio of 7:3 to 3:7, so as to compose soft magnetic alloy powder, and the average particle diameter of the powdery mixture is controlled to 20 to 60 μm. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供具有优异磁性的软磁性合金粉末。＆lt; P＆gt;解决方案：软磁性合金粉末的组成为：以质量计含有0〜7％的Si，2〜5％的B，0.5〜6％的Nb，余量基本上为Fe，其中，水雾化或气体雾化后的水冷却得到的粉末为20〜100μm。此外，具有> 90至100体积％的无定形材料形成率和5至20μm的平均粒径的细粉末，以及非晶材料形成率≤90体积％的粗粉末和平均粒径为 > 20〜100μm的重量比以7:3〜3:7的比例混合，构成软磁性合金粉末，将粉末状混合物的平均粒径控制在20〜60μm。版权所有（C）2007，JPO＆INPIT

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