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1. 发明授权

US06264718B1 Powder metallurgy product and method for manufacturing the same 有权
标题翻译：粉末冶金产品及其制造方法
公开(公告)号：US06264718B1
公开(公告)日：2001-07-24
申请号：US09580926
申请日：2000-05-26
申请人： Nobuaki Akagi , Shinya Kawai , Michael E. Lutheran , Masaaki Satoh , Hironori Suzuki
发明人： Nobuaki Akagi , Shinya Kawai , Michael E. Lutheran , Masaaki Satoh , Hironori Suzuki
IPC分类号： B22F300
CPC分类号： C22C33/0221 , C22C33/0228
摘要： A powder metallurgy product which is made from constituent including iron powder. The iron powder includes iron grains which contain machinability improving element in the iron grains. The machinability improving element is configured to improve machinability of the powder metallurgy product and has a pinning effect. An amount (Q) of the machinability improving element is adjusted such that an absolute value of a differential coefficient (dS/dQ) is at least a predetermined value, where (S) is a grain size of iron in the powder metallurgy product.
摘要翻译：由铁粉构成的粉末冶金制品。铁粉包含铁粒中含有机械加工性的铁粒子。可加工性改进元件被配置为提高粉末冶金产品的机械加工性并具有钉扎效果。调整切削性改善元件的量（Q），使得微分系数的绝对值（dS / dQ）至少为预定值，其中（S）是粉末冶金产品中的铁的粒径。

2. 发明授权

US06391083B1 Mixture for powder metallurgy product and method for producing the same 失效
标题翻译：粉末冶金产品的混合物及其制造方法
公开(公告)号：US06391083B1
公开(公告)日：2002-05-21
申请号：US09708619
申请日：2000-11-09
申请人： Nobuaki Akagi , Shinya Kawai , Masaaki Satoh , Yoshikazu Seki , Masaki Amano , Hideaki Ushio , Russell T. Scott
发明人： Nobuaki Akagi , Shinya Kawai , Masaaki Satoh , Yoshikazu Seki , Masaki Amano , Hideaki Ushio , Russell T. Scott
IPC分类号： C22C2900
CPC分类号： C22C33/0207 , B22F2998/00 , C22C33/0221 , C22C33/0228 , B22F5/10
摘要： A mixture for a powder metallurgy product, including iron powder, graphite powder and copper (Cu) of about 3.0 to about 5.0 weight percent. Iron powder includes iron grains which contain MnS therein. The mixture contains the MnS of about 0.65 to about 1.40 weight percent. The graphite powder is contained in the mixture such that an amount of carbon (C) in the powder metallurgy product is about 0.3 to about 0.7 weight percent. An amount (wt % C) of the carbon and an amount (wt % Cu) of the copper is determined to obtain a target fatigue strength FS (MPa) and a target hardness HR (HRB) based on a relation FS=66.63×(wt % C)+22.61×(wt % Cu)+280.84 HR=22.96×(wt % C)+2.99×(wt % Cu)+78.91.
摘要翻译：一种粉末冶金产品的混合物，包括约3.0至约5.0重量％的铁粉，石墨粉和铜（Cu）。铁粉包括含有MnS的铁粒子。该混合物含有约0.65至约1.40重量％的MnS。在该混合物中含有石墨粉，粉末冶金产物中的碳（C）的量为约0.3至约0.7重量％。确定碳的量（重量％C）和铜的量（重量％Cu），以获得基于关系的目标疲劳强度FS（MPa）和目标硬度HR（HRB）

3. 发明申请

US20100188179A1 IRON-BASED SOFT MAGNETIC POWDER FOR DUST CORE AND DUST CORE 有权
标题翻译：基于铁的软磁粉，用于粉尘和粉尘核心
公开(公告)号：US20100188179A1
公开(公告)日：2010-07-29
申请号：US12670750
申请日：2008-07-02
申请人： Hiroyuki Mitani , Nobuaki Akagi , Hirofumi Houjou
发明人： Hiroyuki Mitani , Nobuaki Akagi , Hirofumi Houjou
IPC分类号： H01F3/08 , B22F1/02 , B32B15/02
CPC分类号： H01F1/24 , B22F1/02 , H01F3/08 , H01F41/0246 , Y10T428/12007 , Y10T428/12181 , Y10T428/2991
摘要： The invention relates to an iron-based soft magnetic powder for a dust core, wherein a film comprising Fe and Co, a phosphoric acid-based chemical conversion film and a silicone resin film are formed in this order on the surface of an iron-based soft magnetic powder, and to a dust core obtained by molding the iron-based soft magnetic powder for a dust core. The invention also relates to an iron-based soft magnetic powder for a dust core formed by coating the surface of an iron-based soft magnetic powder with an insulating film, wherein the powder has a particle diameter of from 45 μm to 180 μm, the insulating film is composed of two layers in which a lower layer composed of a phosphoric acid-based chemical conversion film and an upper layer composed of a silicone resin film, and each of the films has a thickness of from 100 nm to 280 nm, and to a dust core obtained by molding the iron-based soft magnetic powder for a dust core.
摘要翻译：本发明涉及一种用于防尘芯的铁基软磁性粉末，其中包含Fe和Co，磷酸基化学转化膜和有机硅树脂膜的膜依次形成在铁基软磁性粉末和通过模制用于粉尘芯的铁基软磁性粉末而获得的粉芯。本发明还涉及一种用于通过用绝缘膜涂覆铁基软磁性粉末的表面形成的用于防尘芯的铁基软磁性粉末，其中该粉末具有45μm至180μm的粒径，绝缘膜由两层构成，其中由磷酸基化学转化膜构成的下层和由硅树脂膜构成的上层，并且每个膜具有100nm至280nm的厚度，以及涉及通过模制用于防尘芯的铁基软磁性粉末而获得的防尘芯。

4. 发明授权

US08409707B2 Iron-based soft magnetic powder for dust core and dust core 有权
标题翻译：铁粉软磁粉为防尘芯和防尘芯
公开(公告)号：US08409707B2
公开(公告)日：2013-04-02
申请号：US12670750
申请日：2008-07-02
申请人： Hiroyuki Mitani , Nobuaki Akagi , Hirofumi Houjou
发明人： Hiroyuki Mitani , Nobuaki Akagi , Hirofumi Houjou
IPC分类号： H01F3/08 , B22F1/02 , B32B15/02
CPC分类号： H01F1/24 , B22F1/02 , H01F3/08 , H01F41/0246 , Y10T428/12007 , Y10T428/12181 , Y10T428/2991
摘要： The invention relates to an iron-based soft magnetic powder for a dust core, wherein a film comprising Fe and Co, a phosphoric acid-based chemical conversion film and a silicone resin film are formed in this order on the surface of an iron-based soft magnetic powder, and to a dust core obtained by molding the iron-based soft magnetic powder for a dust core. The invention also relates to an iron-based soft magnetic powder for a dust core formed by coating the surface of an iron-based soft magnetic powder with an insulating film, wherein the powder has a particle diameter of from 45 μm to 180 μm, the insulating film is composed of two layers in which a lower layer composed of a phosphoric acid-based chemical conversion film and an upper layer composed of a silicone resin film, and each of the films has a thickness of from 100 nm to 280 nm, and to a dust core obtained by molding the iron-based soft magnetic powder for a dust core.
摘要翻译：本发明涉及一种用于防尘芯的铁基软磁性粉末，其中包含Fe和Co，磷酸基化学转化膜和有机硅树脂膜的膜依次形成在铁基软磁性粉末和通过模制用于粉尘芯的铁基软磁性粉末而获得的粉芯。本发明还涉及一种用于通过用绝缘膜涂覆铁基软磁性粉末的表面形成的用于防尘芯的铁基软磁性粉末，其中该粉末具有45μm至180μm的粒径，绝缘膜由两层构成，其中由磷酸基化学转化膜构成的下层和由硅树脂膜构成的上层，并且每个膜具有100nm至280nm的厚度，以及涉及通过模制用于防尘芯的铁基软磁性粉末而获得的防尘芯。

5. 发明申请

US20090226751A1 POWDER CORE AND IRON-BASE POWDER FOR POWDER CORE 有权
标题翻译：粉末核心和铁粉基础粉末粉末
公开(公告)号：US20090226751A1
公开(公告)日：2009-09-10
申请号：US12440779
申请日：2007-09-11
申请人： Hiroyuki Mitani , Nobuaki Akagi , Hirofumi Houjou , Chio Ishihara , Makoto Iwakiri , Sohei Yamada , Yasukuni Mochimizo
发明人： Hiroyuki Mitani , Nobuaki Akagi , Hirofumi Houjou , Chio Ishihara , Makoto Iwakiri , Sohei Yamada , Yasukuni Mochimizo
IPC分类号： B32B15/01 , C22C38/00 , B32B15/02
CPC分类号： H01F1/26 , B22F1/0007 , B22F1/0088 , B22F1/02 , B22F2003/026 , B22F2003/145 , B22F2003/248 , B22F2998/10 , C22C2202/02 , H01F1/24 , H01F3/08 , H01F41/0246 , Y10T428/12028 , Y10T428/12056 , B22F1/0059 , B22F1/0085 , B22F3/02 , B22F3/24
摘要： The present invention relates to an iron-base powder for a powder core, wherein when cross-sections of at least 50 iron-base powders are observed and a crystal grain size distribution containing at least a maximum crystal grain size is determined by measuring a crystal grain size of each iron-base powder, 70% or more of the measured crystal grains are a crystal grain having a crystal grain size of 50 μm or more. According to the iron-base powder of the invention, a coercivity of the powder core can be made small and a hysteresis loss can be reduced.
摘要翻译：本发明涉及一种用于粉末芯的铁基粉末，其中当观察至少50个铁基粉末的横截面时，通过测量晶体尺寸来确定至少具有最大晶粒尺寸的晶粒尺寸分布每个铁基粉末的晶粒尺寸，所测得的晶粒的70％以上是晶粒尺寸为50μm以上的晶粒。根据本发明的铁基粉末，可以使粉末芯的矫顽力变小，并且可以降低滞后损失。

6. 发明授权

US09275779B2 Iron-based soft magnetic powder for dust core, preparation process thereof, and dust core 有权
标题翻译：铁粉软磁粉，其制备工艺及防尘芯
公开(公告)号：US09275779B2
公开(公告)日：2016-03-01
申请号：US13306228
申请日：2011-11-29
申请人： Hirofumi Hojo , Masamichi Chiba , Hiroyuki Mitani , Nobuaki Akagi , Tomotsuna Kamijo
发明人： Hirofumi Hojo , Masamichi Chiba , Hiroyuki Mitani , Nobuaki Akagi , Tomotsuna Kamijo
IPC分类号： B32B5/16 , C21D11/00 , C21D1/00 , C22C38/00 , H01F1/24 , H01F41/02 , B22F1/00 , B22F1/02 , H01F1/26
CPC分类号： H01F1/24 , B22F1/0085 , B22F1/0088 , B22F1/02 , B22F2998/10 , H01F1/26 , H01F41/0246 , Y10T428/2991 , B22F1/0074 , B22F2003/026 , B22F2003/248
摘要： Provided is an iron-based soft magnetic powder for dust core having a less coercive force, which is obtained by specifying the amount of inclusions in the iron-based powder for dust core, and at the same time, capable of decreasing the coercive force of a dust core produced using the iron-based soft magnetic powder. The iron-based soft magnetic powder for dust core is characterized by that when the cross-section of the iron-based soft magnetic powder particle is observed with a scanning electron microscope, the number of inclusions having an equivalent circle diameter from 0.1 to 3 μm is 1×104 pieces/mm2 or less and the number of inclusions having an equivalent circle diameter exceeding 3 μm is 10 pieces/mm2 or less.
摘要翻译：本发明提供一种矫顽力小的铁基软磁性粉末，其特征在于，通过规定用于防尘芯的铁基粉末中的夹杂物的含量而得到，并且能够降低矫顽力的矫顽力使用铁基软磁性粉末制成的防尘芯。用于防尘芯的铁基软磁性粉末的特征在于，当用扫描电子显微镜观察铁基软磁性粉末颗粒的横截面时，具有0.1至3μm的当量圆直径的夹杂物的数量为1×104个/ mm 2以下，当量圆直径超过3μm的夹杂物的数量为10个/ mm 2以下。

7. 发明申请

US20100212455A1 IRON-BASED SOFT MAGNETIC POWDER FOR DUST CORE, METHOD FOR MANUFACTURING THE SAME, AND DUST CORE 审中-公开
标题翻译：用于磁芯的基于铁的软磁粉，其制造方法和除尘芯
公开(公告)号：US20100212455A1
公开(公告)日：2010-08-26
申请号：US12648684
申请日：2009-12-29
申请人： Takeshi OHWAKI , Hiroyuki Mitani , Hirofumi Hojo , Kasumi Yanagisawa , Nobuaki Akagi
发明人： Takeshi OHWAKI , Hiroyuki Mitani , Hirofumi Hojo , Kasumi Yanagisawa , Nobuaki Akagi
IPC分类号： B22F1/02 , B22F9/00 , H01F1/03 , B05D3/02 , B05D7/00
CPC分类号： H01F1/20 , B22F1/02 , B22F2998/00 , C22C2202/02 , C23C22/07 , C23C22/82 , H01F1/147 , H01F1/24 , H01F1/26 , H01F41/005 , H01F41/0246 , Y10T428/12181 , B22F2301/35 , B22F2302/45
摘要： An iron-based soft magnetic powder for dust core having a high magnetic flux density, maintaining high electric insulation even after annealing, and more excellent in the mechanical strength in which a coating film having a phosphate conversion coating film is formed on the surface thereof and the peak height for the absorption of hydroxyl groups formed at 3700 cm−1 to 2500 cm−1 is 0.04 or more being indicated by absorbance when the coating film is analyzed by infrared diffuse reflectance spectroscopy.
摘要翻译：一种铁磁性软磁粉末，具有高的磁通密度，即使在退火之后也保持高的绝缘性，并且在其表面上形成具有磷酸盐转化膜的涂膜的机械强度更优异，当通过红外漫反射光谱法分析涂膜时，通过吸光度表示在3700cm -1至2500cm -1处形成的羟基的吸收峰值为0.04以上。

8. 发明授权

US06344169B2 Method for compaction of powders for powder metallurgy 有权
标题翻译：粉末冶金粉末压实方法
公开(公告)号：US06344169B2
公开(公告)日：2002-02-05
申请号：US09433071
申请日：1999-11-03
申请人： Takehiro Tsuchida , Hiroshi Yaguchi , Tetsuya Sawayama , Masaaki Sato , Yoshikazu Seki , Nobuaki Akagi
发明人： Takehiro Tsuchida , Hiroshi Yaguchi , Tetsuya Sawayama , Masaaki Sato , Yoshikazu Seki , Nobuaki Akagi
IPC分类号： B22F312
CPC分类号： H01F1/24 , B22F1/02 , B22F3/14 , B22F2003/023 , B22F2003/026 , B22F2003/145 , B22F2998/00 , B22F2999/00 , H01F41/0246 , B22F1/0059 , B22F3/02 , B22F2202/01
摘要： A method for compacting powders for powder metallurgy comprises packing powders for powder metallurgy formulated with a lubricant in a compacting die applied with a lubricant on inner wall surfaces thereof, and subjecting the powders to warm or hot compaction. The powders contain the lubricant in an amount up to 0.2 wt %, non-inclusive of 0%, based on the total of the powders and the lubricant.
摘要翻译：压粉粉末冶金粉末的方法包括：将粉末冶金用粉末冶金制成的粉末冶金粉末在其内壁表面上施加润滑剂的压实模具中填充润滑剂，并对粉末进行热压或热压实。基于粉末和润滑剂的总和，粉末含有高达0.2重量％，不包括0％的量的润滑剂。

9. 发明授权

US08236087B2 Powder core and iron-base powder for powder core 有权
标题翻译：粉芯和铁粉粉末芯
公开(公告)号：US08236087B2
公开(公告)日：2012-08-07
申请号：US12440779
申请日：2007-09-11
申请人： Hiroyuki Mitani , Nobuaki Akagi , Hirofumi Houjou , Chio Ishihara , Makoto Iwakiri , Sohei Yamada , Yasukuni Mochimizo
发明人： Hiroyuki Mitani , Nobuaki Akagi , Hirofumi Houjou , Chio Ishihara , Makoto Iwakiri , Sohei Yamada , Yasukuni Mochimizo
IPC分类号： B22F1/02 , H01F1/06
CPC分类号： H01F1/26 , B22F1/0007 , B22F1/0088 , B22F1/02 , B22F2003/026 , B22F2003/145 , B22F2003/248 , B22F2998/10 , C22C2202/02 , H01F1/24 , H01F3/08 , H01F41/0246 , Y10T428/12028 , Y10T428/12056 , B22F1/0059 , B22F1/0085 , B22F3/02 , B22F3/24
摘要： The present invention relates to an iron-base powder for a powder core, wherein when cross-sections of at least 50 iron-base powders are observed and a crystal grain size distribution containing at least a maximum crystal grain size is determined by measuring a crystal grain size of each iron-base powder, 70% or more of the measured crystal grains are a crystal grain having a crystal grain size of 50 μm or more. According to the iron-base powder of the invention, a coercivity of the powder core can be made small and a hysteresis loss can be reduced.
摘要翻译：本发明涉及一种用于粉末芯的铁基粉末，其中当观察至少50个铁基粉末的横截面时，通过测量晶体尺寸来确定至少具有最大晶粒尺寸的晶粒尺寸分布每个铁基粉末的晶粒尺寸，所测得的晶粒的70％以上是晶粒尺寸为50μm以上的晶粒。根据本发明的铁基粉末，可以使粉末芯的矫顽力变小，并且可以降低滞后损失。

10. 发明申请

US20120164453A1 IRON-BASED SOFT MAGNETIC POWDER FOR DUST CORE, PREPARATION PROCESS THEREOF, AND DUST CORE 有权
标题翻译：基于铁粉的软磁粉，其制备方法及其核心
公开(公告)号：US20120164453A1
公开(公告)日：2012-06-28
申请号：US13306228
申请日：2011-11-29
申请人： Hirofumi HOJO , Masamichi Chiba , Hiroyuki Mitani , Nobuaki Akagi , Tomotsuna Kamijo
发明人： Hirofumi HOJO , Masamichi Chiba , Hiroyuki Mitani , Nobuaki Akagi , Tomotsuna Kamijo
IPC分类号： B32B5/16 , C21D11/00 , C21D1/00 , C22C38/00
CPC分类号： H01F1/24 , B22F1/0085 , B22F1/0088 , B22F1/02 , B22F2998/10 , H01F1/26 , H01F41/0246 , Y10T428/2991 , B22F1/0074 , B22F2003/026 , B22F2003/248
摘要： Provided is an iron-based soft magnetic powder for dust core having a less coercive force, which is obtained by specifying the amount of inclusions in the iron-based powder for dust core, and at the same time, capable of decreasing the coercive force of a dust core produced using the iron-based soft magnetic powder.The iron-based soft magnetic powder for dust core is characterized by that when the cross-section of the iron-based soft magnetic powder particle is observed with a scanning electron microscope, the number of inclusions having an equivalent circle diameter from 0.1 to 3 μm is 1×104 pieces/mm2 or less and the number of inclusions having an equivalent circle diameter exceeding 3 μm is 10 pieces/mm2 or less.
摘要翻译：本发明提供一种矫顽力小的铁基软磁性粉末，其特征在于，通过规定用于防尘芯的铁基粉末中的夹杂物的含量而得到，并且能够降低矫顽力的矫顽力使用铁基软磁性粉末制成的防尘芯。用于防尘芯的铁基软磁性粉末的特征在于，当用扫描电子显微镜观察铁基软磁性粉末颗粒的横截面时，具有0.1至3μm的当量圆直径的夹杂物的数量为1×104个/ mm 2以下，当量圆直径超过3μm的夹杂物的数量为10个/ mm 2以下。

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