公开(公告)号：US20100224822A1

公开(公告)日：2010-09-09

申请号：US12398391

申请日：2009-03-05

Applicant: Guillem Vachon ,  Claude Gelinas

Inventor： Guillem Vachon ,  Claude Gelinas

IPC: H01F1/09 ,  B05D5/12 ,  C04B35/645

CPC classification number: H01F1/24 ,  B22F1/02 ,  B22F2998/10 ,  C22C33/0228 ,  H01F1/33 ,  H01F41/0246 ,  B22F3/02 ,  B22F2003/248

Abstract: The present invention relates to ferromagnetic powders with an electrically insulating layer on iron particles intended for the manufacture of components having improved soft magnetic properties at low and medium frequencies. The invention comprises an iron powder coated with a dielectric insulating layer comprising boron bearing compounds to form an insulated ferromagnetic powder. The present invention also relates to a method of making these insulated ferromagnetic powders. The present invention further relates to a method of synthesizing a product made from insulated ferromagnetic powders via a post-heat treatment at a moderate temperature (300° C. to 700° C.), to form a glass-like coating which acts as an electrical insulator. A preferred embodiment of the present invention is obtained when small amounts of alkali bearing compounds are added to the precursors to modify the coating chemistry and significantly increase the electrical resistivity after heat treatment.

Abstract translation: 本发明涉及在铁颗粒上具有电绝缘层的铁磁粉末，其用于制造在低频和中频下具有改善的软磁特性的组分。 本发明包括涂覆有包含含硼化合物以形成绝缘铁磁粉末的介电绝缘层的铁粉末。 本发明还涉及制造这些绝缘铁磁粉末的方法。 本发明还涉及通过在中等温度（300℃至700℃）下进行后热处理来合成由绝缘铁磁粉末制成的产品的方法，以形成玻璃状涂层，其作为 电绝缘子。 当向前体中加入少量含碱的化合物以改变涂料化学性质并显着增加热处理后的电阻率时，可获得本发明的优选实施方案。

公开(公告)号：US20100150768A1

公开(公告)日：2010-06-17

申请号：US12600923

申请日：2008-05-26

Applicant: Akira Fujita ,  Tatsuhiko Hiratani ,  Toshio Maetani

Inventor： Akira Fujita ,  Tatsuhiko Hiratani ,  Toshio Maetani

IPC: B22F3/10 ,  B05D7/14 ,  B22F3/02 ,  B05D3/00

CPC classification number: H01F41/0246 ,  B22F1/0088 ,  B22F1/02 ,  B22F3/12 ,  B22F2998/00 ,  B22F2998/10 ,  H01F1/24 ,  H01F1/33 ,  B22F2201/40

Abstract: A pure iron powder of a diameter of 10 to 500 μm and a purity of 99% by mass or more is heated to a temperature in the range of 600 to 1400° C., and a Si-concentrated layer is formed in regions within a depth of 5 μm from the surfaces of the powder particles by gas-phase reaction at a temperature of that range. The average Si concentration in the regions within this depth is controlled in the range of 0.05% to 2% by mass. Thus, a dust core metal powder enhancing the adhesion of insulating material to the particle without degrading compressibility is produced. The resulting dust core maintains a high saturation magnetic flux density and exhibits a low iron loss.

Abstract translation: 将直径为10〜500μm，纯度为99质量％以上的纯铁粉末加热至600〜1400℃的温度范围，在该温度范围内形成Si浓缩层 在该范围的温度下通过气相反应从粉末颗粒的表面开始深度为5μm。 该深度区域内的平均Si浓度控制在0.05质量％至2质量％的范围内。 因此，产生增强绝缘材料对颗粒的粘合性而不降低可压缩性的粉尘芯金属粉末。 所得到的粉尘芯保持高的饱和磁通密度并且表现出低的铁损。

公开(公告)号：US20100060539A1

公开(公告)日：2010-03-11

申请号：US12412249

申请日：2009-03-26

Applicant: Tomohiro Suetsuna ,  Kouichi Harada ,  Maki Yonetsu ,  Seiichi Suenaga

Inventor： Tomohiro Suetsuna ,  Kouichi Harada ,  Maki Yonetsu ,  Seiichi Suenaga

IPC: B05D5/00 ,  B32B5/16 ,  H01F1/04 ,  H01Q1/00

CPC classification number: H01F1/33 ,  H01Q9/16 ,  H01Q9/42 ,  Y10T428/2991

Abstract: The present invention provides a core-shell magnetic material having an excellent characteristic in a high frequency band, particularly, in a GHz band. The core-shell magnetic material includes: core-shell magnetic particles including magnetic metal particles and an oxide coating layer, the magnetic metal particle containing magnetic metal selected from the group of Fe, Co, and Ni, nonmagnetic metal selected from the group of Mg, Al, Si, Ca, Zr, Ti, Hf, Zn, Mn, a rare-earth element, Ba, and Sr, and an element selected from carbon and nitrogen, and the oxide coating layer being made of an oxide containing at least one nonmagnetic metal as one of the components of the magnetic metal particle; and oxide particles existing at least a part between the magnetic metal particles and containing nonmagnetic metal selected from the group of Mg, Al, Si, Ca, Zr, Ti, Hf, Zn, Mn, a rare-earth element, Ba, and Sr, and in which nonmagnetic metal/magnetic metal (atomic ratio) in the particles is higher than that in the oxide coating layer.

Abstract translation: 本发明提供了在高频带，特别是GHz频带中具有优异特性的核 - 壳磁性材料。 核 - 壳磁性材料包括：包含磁性金属颗粒和氧化物涂层的核 - 壳磁性颗粒，含有选自Fe，Co和Ni的磁性金属的磁性金属颗粒，选自Mg组中的非磁性金属 ，Al，Si，Ca，Zr，Ti，Hf，Zn，Mn，稀土元素，Ba和Sr以及选自碳和氮的元素，氧化物被覆层由至少含有氧化物 一种非磁性金属作为磁性金属颗粒的组分之一; 并且存在至少一部分在磁性金属颗粒之间并且含有选自Mg，Al，Si，Ca，Zr，Ti，Hf，Zn，Mn，稀土元素，Ba和Sr中的非磁性金属的氧化物颗粒 ，其中颗粒中的非磁性金属/磁性金属（原子比）高于氧化物涂层中的非磁性金属/磁性金属（原子比）。

公开(公告)号：US20100060538A1

公开(公告)日：2010-03-11

申请号：US12411101

申请日：2009-03-25

Applicant: Tomohiro SUETSUNA ,  Kouichi HARADA ,  Maki YONETSU ,  Seiichi SUENAGA ,  Naoto ITO ,  Akihiro TSUJIMURA

Inventor： Tomohiro SUETSUNA ,  Kouichi HARADA ,  Maki YONETSU ,  Seiichi SUENAGA ,  Naoto ITO ,  Akihiro TSUJIMURA

IPC: H01Q1/00 ,  H01F1/053 ,  B05D5/12

CPC classification number: H01F1/33 ,  H01Q9/16 ,  H01Q9/42 ,  Y10T428/12465

Abstract: The present invention provides a core-shell magnetic material having an excellent characteristic in a high frequency band, particularly, in a GHz band. The core-shell magnetic material includes: core-shell magnetic particles including magnetic metal particles and an oxide coating layer, the magnetic metal particle containing magnetic metal selected from the group of Fe, Co, and Ni, nonmagnetic metal selected from the group of Mg, Al, Si, Ca, Zr, Ti, Hf, Zn, Mn, a rare-earth element, Ba, and Sr, and an element selected from carbon and nitrogen, and the oxide coating layer being made of an oxide containing at least one nonmagnetic metal as one of the components of the magnetic metal particle; and oxide particles existing at least a part between the magnetic metal particles and containing nonmagnetic metal selected from the group of Mg, Al, Si, Ca, Zr, Ti, Hf, Zn, Mn, a rare-earth element, Ba, and Sr, and in which nonmagnetic metal/magnetic metal (atomic ratio) in the particles is higher than that in the oxide coating layer.

Abstract translation: 本发明提供了在高频带，特别是GHz频带中具有优异特性的核 - 壳磁性材料。 核 - 壳磁性材料包括：包含磁性金属颗粒和氧化物涂层的核 - 壳磁性颗粒，含有选自Fe，Co和Ni的磁性金属的磁性金属颗粒，选自Mg组中的非磁性金属 ，Al，Si，Ca，Zr，Ti，Hf，Zn，Mn，稀土元素，Ba和Sr以及选自碳和氮的元素，氧化物被覆层由至少含有氧化物 一种非磁性金属作为磁性金属颗粒的组分之一; 并且存在至少一部分在磁性金属颗粒之间并且含有选自Mg，Al，Si，Ca，Zr，Ti，Hf，Zn，Mn，稀土元素，Ba和Sr中的非磁性金属的氧化物颗粒 ，其中颗粒中的非磁性金属/磁性金属（原子比）高于氧化物涂层中的非磁性金属/磁性金属（原子比）。

公开(公告)号：US20100045120A1

公开(公告)日：2010-02-25

申请号：US12518408

申请日：2007-12-28

Applicant: Tomoyasu Kitano ,  Eisuke Hoshina ,  Daisuke Ichigozaki

Inventor： Tomoyasu Kitano ,  Eisuke Hoshina ,  Daisuke Ichigozaki

IPC: H02K15/12 ,  H01F1/26 ,  H01F27/255

CPC classification number: H01F3/08 ,  B22F1/0062 ,  B22F1/02 ,  B22F2998/10 ,  C22C2202/02 ,  H01F1/26 ,  H01F1/33 ,  H01F41/0246 ,  H02K1/02 ,  H02K15/02 ,  B22F1/007

Abstract: According to the present invention, a magnetic powder for a dust core, which is excellent in terms of insulation properties without causing a decrease in the dust core magnetic flux density, a dust core comprising the magnetic powder, and a motor or a reactor having a core composed of the dust core are provided. Therefore, a magnetic powder 10 for a dust core is characterized in that relatively hard oxide fine powder particles 2 are dispersed over and fixed to the surface of a soft magnetic metal powder particle 1, and that a relatively soft insulating coat 3 is fixed to the oxide fine powder particles 2 and portions where the dispersed and fixed oxide fine powder particles 2 do not exist on the surface of the soft magnetic metal powder particle 1.

Abstract translation: 根据本发明，一种用于防尘芯的磁性粉末，其绝缘性能优异，而不会降低粉尘磁心的磁通密度，包含磁性粉末的压粉磁心，以及电动机或具有 提供由防尘芯组成的芯。 因此，用于防尘芯的磁粉10的特征在于，将较硬的氧化物细粉末颗粒2分散并固定在软磁性金属粉末颗粒1的表面上，并且将相对柔软的绝缘涂层3固定到 氧化物细粉末颗粒2和在软磁性金属粉末颗粒1的表面上不存在分散和固定的氧化物细粉末颗粒2的部分。

公开(公告)号：US20100044618A1

公开(公告)日：2010-02-25

申请号：US12518498

申请日：2008-09-03

Applicant: Tomoyuki Ishimine ,  Toshihiro Sakamoto ,  Toru Maeda ,  Naoto Igarashi

Inventor： Tomoyuki Ishimine ,  Toshihiro Sakamoto ,  Toru Maeda ,  Naoto Igarashi

IPC: H01F1/04 ,  B32B5/16 ,  B05D7/00 ,  B22F1/00 ,  B22F1/02 ,  B05D5/00

CPC classification number: H01F3/02 ,  B22F1/0014 ,  B22F1/0062 ,  B22F1/007 ,  B22F2999/00 ,  C22C38/00 ,  C22C2202/02 ,  H01F1/24 ,  H01F1/26 ,  H01F1/33 ,  H01F41/0246 ,  Y10T428/2982 ,  B22F3/10 ,  B22F2201/02

Abstract: A soft magnetic material, a dust core, a method for manufacturing the soft magnetic material, and a method for manufacturing the dust core that can improve DC bias characteristics are provided.A soft magnetic material includes a plurality of metal magnetic particles 10 whose coefficient of variation Cv (σ/μ), which is a ratio of a standard deviation (σ) of a particle size of the metal magnetic particles 10 to an average particle size (μ) thereof, is 0.40 or less and whose circularity Sf is 0.80 or more and 1 or less. The metal magnetic particles 10 preferably have an average particle size of 1 μm or more and 70 μm or less. The soft magnetic material preferably further includes an insulating coated film that surrounds a surface of each of the metal magnetic particles 10.

Abstract translation: 提供软磁性材料，压粉芯，软磁性材料的制造方法以及可提高直流偏压特性的集尘芯的制造方法。 软磁性材料包括多个金属磁性颗粒10，其金属磁性颗粒10的粒径与平均颗粒的标准偏差（＆sgr）的比值变化系数Cv（＆Sgr /μ） 尺寸（μ）为0.40以下，圆形度Sf为0.80以上1以下。 金属磁性粒子10的平均粒径优选为1μm以上且70μm以下。 软磁性材料优选还包括围绕每个金属磁性颗粒10的表面的绝缘涂膜。

公开(公告)号：US20100034687A1

公开(公告)日：2010-02-11

申请号：US12581164

申请日：2009-10-19

Applicant: Zhichao Lu ,  Deren Li ,  Shaoxiong Zhou ,  Caowei Lu ,  Feng Guo ,  Jianliang Li ,  Jun Wang ,  Tongchun Zhao ,  Liang Zhang

Inventor： Zhichao Lu ,  Deren Li ,  Shaoxiong Zhou ,  Caowei Lu ,  Feng Guo ,  Jianliang Li ,  Jun Wang ,  Tongchun Zhao ,  Liang Zhang

IPC: H01F41/02 ,  B22F1/00 ,  B22F3/12 ,  B22F3/24

CPC classification number: H01F1/15358 ,  B22F1/0059 ,  B22F2003/248 ,  B22F2998/10 ,  C22C33/0257 ,  H01F1/14791 ,  H01F1/15333 ,  H01F1/24 ,  H01F1/33 ,  H01F41/0246 ,  B22F1/0003 ,  B22F3/02 ,  B22F3/24

Abstract: The present invention provides a compound powder for making magnetic powder cores, a kind of magnetic powder core, and a process for making them. Said compound powder is a mixture composing of powder A and powder B, the content of powder A is 50-96 wt. % and the content of powder B is 4-50 wt. %, wherein powder A is at least one selected from iron powder, Fe—Si powder, Fe—Si—Al powder, Fe-based nanocrystalline powder, Fe-based amorphous powder, Fe—Ni powder and Fe—Ni—Mo powder; powder B bears different requirement characteristics from powder A and is at least one selected from iron powder, Fe—Si powder, Fe—Si—Al powder, Fe-based nanocrystalline powder, Fe-based amorphous powder, Fe—Ni powder and Fe—Ni—Mo powder. Said powder B adopts Fe-based amorphous soft magnetic powder with good insulation property as insulating agent and thus core loss of magnetic powder core decreases. The decrease of magnetic permeability of magnetic powder core resulting from a traditional insulating agent is remedied and the initial magnetic permeability of magnetic powder core is improved by taking advantage of soft magnetic properties of Fe-based amorphous powder.

Abstract translation: 本发明提供一种用于制造磁性粉末芯的复合粉末，一种磁性粉末核心及其制造方法。 所述复合粉末是由粉末A和粉末B组成的混合物，粉末A的含量为50-96重量％。 ％，粉末B的含量为4-50wt。 ％，其中粉末A为选自铁粉，Fe-Si粉末，Fe-Si-Al粉末，Fe基纳米晶体粉末，Fe基非晶质粉末，Fe-Ni粉末和Fe-Ni-Mo粉末中的至少一种; 粉末B与粉末A具有不同的要求特性，并且选自铁粉，Fe-Si粉末，Fe-Si-Al粉末，Fe基纳米晶体粉末，Fe基非晶质粉末，Fe-Ni粉末和Fe- 镍钼粉。 所述粉末B采用具有良好绝缘性能的铁基非晶软磁粉末作为绝缘剂，因此磁粉芯的磁芯损耗降低。 补充了由传统绝缘剂导致的磁粉芯磁导率的降低，并通过利用Fe基非晶态粉末的软磁性能改善了磁粉芯的初始磁导率。

公开(公告)号：US20100031773A1

公开(公告)日：2010-02-11

申请号：US12581163

申请日：2009-10-19

Applicant: Zhichao Lu ,  Deren Li ,  Shaoxiong Zhou ,  Caowei Lu ,  Feng Guo ,  Jianliang Li ,  Jun Wang ,  Tongchun Zhao ,  Liang Zhang

Inventor： Zhichao Lu ,  Deren Li ,  Shaoxiong Zhou ,  Caowei Lu ,  Feng Guo ,  Jianliang Li ,  Jun Wang ,  Tongchun Zhao ,  Liang Zhang

IPC: B22F9/00 ,  B22F1/00

CPC classification number: H01F1/15358 ,  B22F1/0059 ,  B22F2003/248 ,  B22F2998/10 ,  C22C33/0257 ,  H01F1/14791 ,  H01F1/15333 ,  H01F1/24 ,  H01F1/33 ,  H01F41/0246 ,  B22F1/0003 ,  B22F3/02 ,  B22F3/24

Abstract: The present invention provides a compound powder for making magnetic powder cores, a kind of magnetic powder core, and a process for making them. Said compound powder is a mixture composing of powder A and powder B, the content of powder A is 50-96 wt. % and the content of powder B is 4-50 wt. %, wherein powder A is at least one selected from iron powder, Fe—Si powder, Fe—Si—Al powder, Fe-based nanocrystalline powder, Fe-based amorphous powder, Fe—Ni powder and Fe—Ni—Mo powder; powder B bears different requirement characteristics from powder A and is at least one selected from iron powder, Fe—Si powder, Fe—Si—Al powder, Fe-based nanocrystalline powder, Fe-based amorphous powder, Fe—Ni powder and Fe—Ni—Mo powder. Said powder B adopts Fe-based amorphous soft magnetic powder with good insulation property as insulating agent and thus core loss of magnetic powder core decreases. The decrease of magnetic permeability of magnetic powder core resulting from a traditional insulating agent is remedied and the initial magnetic permeability of magnetic powder core is improved by taking advantage of soft magnetic properties of Fe-based amorphous powder.

公开(公告)号：US20100028195A1

公开(公告)日：2010-02-04

申请号：US12576716

申请日：2009-10-09

Applicant: Toru Maeda ,  Kazuyuki Maeda ,  Yasushi Mochida ,  Koji Mimura

Inventor： Toru Maeda ,  Kazuyuki Maeda ,  Yasushi Mochida ,  Koji Mimura

IPC: B22F1/02 ,  B05D5/00 ,  B22F3/12

CPC classification number: H01F41/0246 ,  B22F1/02 ,  B22F2003/145 ,  B22F2003/248 ,  B22F2998/10 ,  C22C33/02 ,  C22C2202/02 ,  H01F1/24 ,  H01F1/26 ,  H01F1/33 ,  H01F3/08 ,  Y10T428/12014 ,  Y10T428/2995 ,  Y10T428/32 ,  Y10T428/325 ,  B22F9/082 ,  B22F1/0088 ,  B22F3/02 ,  B22F3/24 ,  B22F3/14

Abstract: A soft magnetic material includes a plurality of composite magnetic particles (40) each including a metal magnetic particle (10) and an insulation coating (20) covering the surface of the metal magnetic particle (10), wherein the insulation coating (20) contains Si (silicon), and 80% or more of Si contained in the insulation coating constitutes a silsesquioxane skeleton. Therefore, it is possible to effectively decrease a hysteresis loss while suppressing an increase in eddy-current loss.

Abstract translation: 软磁性材料包括多个复合磁性颗粒（40），每个复合磁性颗粒包括覆盖金属磁性颗粒（10）表面的金属磁性颗粒（10）和绝缘涂层（20），其中绝缘涂层（20）包含 Si（硅），绝缘涂层中所含的80％以上的Si构成倍半硅氧烷骨架。 因此，可以有效地降低磁滞损耗，同时抑制涡电流损耗的增加。

公开(公告)号：US07622202B2

公开(公告)日：2009-11-24

申请号：US11793984

申请日：2006-07-19

Applicant: Toru Maeda ,  Kazuyuki Maeda ,  Yasushi Mochida ,  Koji Mimura

Inventor： Toru Maeda ,  Kazuyuki Maeda ,  Yasushi Mochida ,  Koji Mimura

IPC: B32B15/00

CPC classification number: H01F41/0246 ,  B22F1/02 ,  B22F2003/145 ,  B22F2003/248 ,  B22F2998/10 ,  C22C33/02 ,  C22C2202/02 ,  H01F1/24 ,  H01F1/26 ,  H01F1/33 ,  H01F3/08 ,  Y10T428/12014 ,  Y10T428/2995 ,  Y10T428/32 ,  Y10T428/325 ,  B22F9/082 ,  B22F1/0088 ,  B22F3/02 ,  B22F3/24 ,  B22F3/14

Abstract: A soft magnetic material includes a plurality of composite magnetic particles (40) each including a metal magnetic particle (10) and an insulation coating (20) covering the surface of the metal magnetic particle (10), wherein the insulation coating (20) contains Si (silicon), and 80% or more of Si contained in the insulation coating constitutes a silsesquioxane skeleton. Therefore, it is possible to effectively decrease a hysteresis loss while suppressing an increase in eddy-current loss.

Abstract translation: 软磁性材料包括多个复合磁性颗粒（40），每个复合磁性颗粒包括覆盖金属磁性颗粒（10）表面的金属磁性颗粒（10）和绝缘涂层（20），其中绝缘涂层（20）包含 Si（硅），绝缘涂层中所含的80％以上的Si构成倍半硅氧烷骨架。 因此，可以有效地降低磁滞损耗，同时抑制涡电流损耗的增加。