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    Composite soft magnetic sintered material having high density and high magnetic permeability and method for preparation thereof
    1.
    发明授权
    Composite soft magnetic sintered material having high density and high magnetic permeability and method for preparation thereof 失效
    具有高密度和高磁导率的复合软磁烧结材料及其制备方法

    公开(公告)号：US07371271B2

    公开(公告)日：2008-05-13

    申请号：US10472499

    申请日：2002-03-29

    申请人： Kazunori Igarashi ,  Ryoji Nakayama ,  Koichiro Morimoto ,  Muneaki Watanabe

    发明人： Kazunori Igarashi ,  Ryoji Nakayama ,  Koichiro Morimoto ,  Muneaki Watanabe

    IPC分类号： B22F3/00 ,  H01F1/01

    CPC分类号： H01F41/0246 ,  C04B2235/3206 ,  C04B2235/3262 ,  C04B2235/3274 ,  C04B2235/3275 ,  C04B2235/3279 ,  C04B2235/3281 ,  C04B2235/3284 ,  C04B2235/5436 ,  C04B2235/5445 ,  H01F1/22 ,  H01F1/24 ,  H01F1/33 ,  Y10T428/256

    摘要： An object of the present invention is to provide a composite soft magnetic sintered material that has high density, high mechanical strength and high relative magnetic permeability at high frequencies and, in order to achieve this object, the present invention provides a method of producing the composite soft magnetic sintered material, which comprises mixing a composite soft magnetic powder, that consists of iron powder, Fe—Si based soft magnetic iron alloy powder, Fe—Al based soft magnetic iron alloy powder, Fe—Si—Al based soft magnetic iron alloy powder, Fe—Cr based soft magnetic iron alloy powder or nickel-based soft magnetic alloy powder (hereinafter these powders are referred to as soft magnetic metal powder) of which particles arc coated with a ferrite layer which has a spinel structure, with 0.05 to 1.0% by weight of silicon dioxide powder having a mean powder particle size of 100 nm or less and sintering the mixed powder after compression molding, or processing two or more kinds of the composite soft magnetic powders, of which particles are coated with ferrite layer having a spinel structure of a different compositions, by compression molding and sintering.

    摘要翻译： 本发明的目的是提供一种在高频下具有高密度，高机械强度和高相对磁导率的复合软磁性烧结材料，为了实现该目的，本发明提供一种复合材料的制造方法 软磁烧结材料包括混合由铁粉，Fe-Si系软磁铁合金粉末，Fe-Al系软磁铁合金粉末，Fe-Si-Al系软磁铁合金粉末组成的复合软磁粉末 粉末，Fe-Cr类软磁铁合金粉末或镍基软磁性合金粉末（以下称为软磁性金属粉末），其粉末电弧涂覆有具有尖晶石结构的铁素体层，其中0.05〜 1.0重量％的平均粉末粒径为100nm以下的二氧化硅粉末，在压缩成型后烧结混合粉末，或者加工两种以上的亲 通过压缩成型和烧结，复合软磁粉末的ds，其中颗粒被具有不同组成的尖晶石结构的铁氧体层涂覆。

    Method for manufacturing a rare earth magnetic powder having high magnetic anisotropy
    6.
    发明授权
    Method for manufacturing a rare earth magnetic powder having high magnetic anisotropy 失效
    具有高磁各向异性的稀土磁性粉末的制造方法

    公开(公告)号：US5993732A

    公开(公告)日：1999-11-30

    申请号：US114254

    申请日：1998-07-13

    申请人： Ryoji Nakayama ,  Yoshinari Ishii ,  Norihito Fukatsu ,  Koichiro Morimoto

    发明人： Ryoji Nakayama ,  Yoshinari Ishii ,  Norihito Fukatsu ,  Koichiro Morimoto

    IPC分类号： B22F1/00 ,  B22F3/00 ,  B22F9/02 ,  C22C38/00 ,  H01F1/057 ,  H01F1/06 ,  B22F3/12 ,  B22F3/14

    CPC分类号： B22F9/023 ,  H01F1/0573 ,  B22F2998/00 ,  B22F2999/00

    摘要： An R--T--M alloy material, wherein R is at least one rare earth metal including Y, T is Fe or an Fe component partially replaced by Co or Ni, M is B or a B component partially replaced by C as primary components is prepared by heating the alloy at a temperature from room temperature to a specific temperature of less than 500.degree. C. in a non-oxidizing atmosphere and holding it at the given temperature, if necessary; performing hydrogenation by holding the alloy in a hydrogen atmosphere or a mixed gas atmosphere of hydrogen and an inert gas at a specific temperature in the range of 500-1,000.degree. C.; medial annealing the alloy by holding the R--T--M alloy after the hydrogenation step in an inert gas atmosphere at a specific temperature in the range of 500-1,000.degree. C.; and dehydrogenating the alloy by holding the alloy in a vacuum of less than 1 Torr for dehydrogenation, and then cooling the alloy.

    摘要翻译： 一种RTM合金材料，其中R是至少一种包括Y的稀土金属，T是Fe或部分被Co或Ni替代的Fe成分，M是B，或者部分被C作为主要成分的B成分加热 合金，在非氧化性气氛中，在室温至特定温度低于500℃的温度下，必要时将其保持在给定温度; 通过在500〜1000℃的特定温度下，在氢气氛或氢气和惰性气体的混合气体气氛中保持合金进行氢化。 在惰性气体气氛中，在500-1000℃的特定温度下，通过在氢化步骤之后保持R-T-M合金，对合金进行内侧退火。 并通过在低于1Torr的真空中保持合金进行脱氢来脱氢合金，然后冷却合金。

    Fe-based sintered valve seat having high strength and method for producing the same
    7.
    发明授权
    Fe-based sintered valve seat having high strength and method for producing the same 有权

    公开(公告)号：US06464749B1

    公开(公告)日：2002-10-15

    申请号：US09497853

    申请日：2000-02-04

    申请人： Kinya Kawase ,  Koichiro Morimoto

    发明人： Kinya Kawase ,  Koichiro Morimoto

    IPC分类号： C22C3302

    CPC分类号： F01L3/02 ,  C22C33/0207

    摘要： A valve seat made of an Fe-based sintered alloy excellent in wear resistance and having a reduced counterpart valve attack property is disclosed, which comprises a base comprising 15-40% by weight of Cu, 0.3-12% by weight of Ni and 0.0005-3.0% by weight of C, and further comprising 0.1-10% by weight of Co and 0.1-10% by weight of Cr when necessary, with the balance being Fe and inevitable impurities, the base having a structure which comprises an Fe-based alloy phase 1 composed of Fe as a main component combined by a Cu-based alloy phase 2 composed of Cu as a main component, wherein hard particles phase 3 having MHV of 500-1700 is dispersed in the base. The Fe-based alloy phase 1 is an Fe alloy phase which comprises Ni, Cu and C with Fe having more than 50% by weight, while the Cu-based alloy phase 2 is a Cu alloy phase which comprises Ni, Fe and C with Cu having more than 50% by weight. At the same time, the contents of Ni and C included in the Fe-based alloy phase are more than those of Ni and C included in the Cu-based alloy phase.

    Method for Producing Composite Soft Magnetic Material Exhibiting Excellent Magnetic Characteristics, High Strength and Low Core Loss
    8.
    发明申请
    Method for Producing Composite Soft Magnetic Material Exhibiting Excellent Magnetic Characteristics, High Strength and Low Core Loss 审中-公开
    具有优异磁特性，高强度，低磁芯损耗的复合软磁材料生产方法

    公开(公告)号：US20070243400A1

    公开(公告)日：2007-10-18

    申请号：US10595591

    申请日：2004-10-28

    申请人： Masahisa Miyahara ,  Koichiro Morimoto

    发明人： Masahisa Miyahara ,  Koichiro Morimoto

    IPC分类号： B22F1/02 ,  H01F1/26 ,  H01F41/02

    CPC分类号： H01F41/0246 ,  B22F1/02 ,  B22F2998/10 ,  H01F1/26 ,  Y10T428/12014 ,  B22F3/02 ,  B22F3/10

    摘要： A method of manufacturing a composite soft magnetic material having excellent magnetic characteristics, a high strength, and a low core loss, having steps of: heating a silicon resin film-coated soft magnetic powder at a temperature of from the room temperature to 150° C. obtained by forming a thin silicon resin film having a thickness of from 0.1 μm to 5 μm on a surface of a soft magnetic powder or an insulating film-coated soft magnetic powder; filling the silicon resin film-coated soft magnetic powder at a temperature of from the room temperature to 150° C. in a mold which is heated at a temperature of from 100° C. to 150° C. and performing compaction at a pressure of from 600 MPa to 1500 MPa, thereby obtaining a compact; and curing the compact at a temperature of from 400° C. to 600° C.

    摘要翻译： 一种制造具有优异的磁特性，高强度和低磁芯损耗的复合软磁材料的方法，具有以下步骤：在室温至150℃的温度下加热硅树脂薄膜软磁性粉末 通过在软磁性粉末或绝缘膜包覆的软磁性粉末的表面上形成厚度为0.1μm至5μm的薄硅树脂膜获得; 在室温至150℃的温度下将硅树脂薄膜包覆的软磁性粉末填充到在100℃至150℃的温度下加热的模具中，并在压力为 从600MPa到1500MPa，由此获得致密体; 并在400℃至600℃的温度下固化该压块。

    Fe-based sintered valve seat having high strength and method for producing the same
    9.
    发明授权
    Fe-based sintered valve seat having high strength and method for producing the same 失效

    公开(公告)号：US06641779B2

    公开(公告)日：2003-11-04

    申请号：US09987548

    申请日：2001-11-15

    申请人： Kinya Kawase ,  Koichiro Morimoto

    发明人： Kinya Kawase ,  Koichiro Morimoto

    IPC分类号： B22F312

    CPC分类号： F01L3/02 ,  C22C33/0207

    摘要： A valve seat made of an Fe-based sintered alloy excellent in wear resistance and having a reduced counterpart valve attack property is disclosed, which comprises a base comprising 15-40% by weight of Cu, 0.3-12% by weight of Ni and 0.0005-3.0% by weight of C, and further comprising 0.1-10% by weight of Co and 0.1-10% by weight of Cr when necessary, with the balance being Fe and inevitable impurities, the base having a structure which comprises an Fe-based alloy phase 1 composed of Fe as a main component combined by a Cu-based alloy phase 2 composed of Cu as a main component, wherein hard particles phase 3 having MHV of 500-1700 is dispersed in the base. The Fe-based alloy phase 1 is an Fe alloy phase which comprises Ni, Cu and C with Fe having more than 50% by weight, while the Cu-based alloy phase 2 is a Cu alloy phase which comprises Ni, Fe and C with Cu having more than 50% by weight. At the same time, the contents of Ni and C included in the Fe-based alloy phase are more than those of Ni and C included in the Cu-based alloy phase.

    Valve seat for engine method of manufacturing the valve seat, and cylinder head for engine
    10.
    发明申请
    Valve seat for engine method of manufacturing the valve seat, and cylinder head for engine 审中-公开
    用于制造阀座的发动机方法的阀座和用于发动机的气缸盖

    公开(公告)号：US20070101964A1

    公开(公告)日：2007-05-10

    申请号：US10572887

    申请日：2004-09-30

    申请人： Koichiro Morimoto ,  Kunio Hanada ,  Takashi Nishida ,  Tomohiro Sakai

    发明人： Koichiro Morimoto ,  Kunio Hanada ,  Takashi Nishida ,  Tomohiro Sakai

    IPC分类号： F02N3/00

    CPC分类号： B22F5/008 ,  B22F3/24 ,  B22F5/00 ,  B22F2003/242 ,  B22F2998/00 ,  C23C8/10 ,  C23C30/00 ,  F01L3/02 ,  F01L3/04 ,  F01L2101/00 ,  F01L2103/00

    摘要： An engine fuel essentially consisting of alcohol may contain a relatively large amount of water in comparison with conventional gasoline and diesel oil, so that when water possibly penetrates into a clearance between an intake valve seat and a mounting reception portion of a cylinder head where the valve seat is to be mounted when the engine fuel essentially consisting of alcohol together with air is introduced into a cylinder through an air inlet having the intake valve seat. As a plating layer 14 is formed on the surface of an iron-based valve seat main body 17 provided at a mounting reception portion 13 formed at an air inlet 6 of a cylinder head 2 made of an aluminum alloy, the plating layer 14 intervenes between the cylinder head 2 and the valve seat main body 17, so that a potential difference between the dissimilar metals for the mounting reception portion 13 and the valve seat main body 17 is reduced through water, thereby preventing galvanic corrosion.

    摘要翻译： 与常规汽油和柴油相比，基本上由酒精组成的发动机燃料可以含有相对大量的水，使得当水可能渗透到进气阀座和气缸盖的安装接收部分之间的间隙中时，阀 当主要由醇组成的发动机燃料与空气一起引入具有进气阀座的进气口的气缸中时，座椅将被安装。 由于在由铝合金制成的气缸盖2的进气口6形成的安装接收部13的铁基阀座主体17的表面上形成镀层14，镀层14介于 气缸盖2和阀座主体17，使得通过水减少用于安装接收部13的异种金属和阀座主体17之间的电位差，从而防止电偶腐蚀。