中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

583 records (took 0.024 seconds)

    METHOD FOR PRODUCING AN R-T-B-M SINTERED MAGNET
    272.
    发明申请
    METHOD FOR PRODUCING AN R-T-B-M SINTERED MAGNET 有权
    用于生产R-T-B-M烧结磁体的方法

    公开(公告)号：US20150023831A1

    公开(公告)日：2015-01-22

    申请号：US14334009

    申请日：2014-07-17

    Applicant: Xifeng Lin ,  Kaihong Ding ,  Yongjie Wang ,  Shengli Cui ,  Zhong Jie Peng ,  Wenchao Li

    Inventor： Xifeng Lin ,  Kaihong Ding ,  Yongjie Wang ,  Shengli Cui ,  Zhong Jie Peng ,  Wenchao Li

    IPC: H01F41/02 ,  H01F1/053

    CPC classification number: H01F41/0266 ,  B22F3/04 ,  B22F3/12 ,  B22F9/04 ,  B22F2003/248 ,  B22F2201/02 ,  B22F2201/11 ,  C22C38/002 ,  C22C38/005 ,  C22C38/06 ,  C22C38/10 ,  C22C38/16 ,  H01F1/0536 ,  H01F1/0573

    Abstract: The present invention provides a method for producing an R-T-B-M sintered magnet having an oxygen content of less than 0.07 wt. % from R-T-B-M raw materials. The composition of R-T-B-M includes R being at least one element selected from a rare earth metal including Sc and Y. The composition also includes T being at least one element selected from Fe and Co. B in the composition is defined as Boron. The composition further includes M being at least one element selected from Ti, Ni, Nb, Al, V, Mn, Sn, Ca, Mg, Pb, Sb, Zn, Si, Zr, Cr, Cu, Ga, Mo, W, and Ta. The present invention provides for a step of creating an inert gas environment in the steps of casting, milling, mixing, molding, heating, and aging to prevent the powder from reacting with the oxygen in anyone of the above mentioned steps.

    Abstract translation: 本发明提供一种氧含量小于0.07重量％的R-T-B-M烧结磁体的制造方法。 ％R-T-B-M原料。 R-T-B-M的组成包括R是选自包括Sc和Y的稀土金属中的至少一种元素。该组合物还包括在组合物中选自Fe和Co B中的至少一种元素的T定义为硼。 所述组合物还包括M为选自Ti，Ni，Nb，Al，V，Mn，Sn，Ca，Mg，Pb，Sb，Zn，Si，Zr，Cr，Cu，Ga，Mo， 和Ta。 本发明提供了在铸造，研磨，混合，成型，加热和老化的步骤中产生惰性气体环境的步骤，以防止粉末与任何上述步骤中的氧气反应。

    Phlegmatized metal powder or alloy powder and method and reaction vessel for the production thereof
    273.
    发明授权
    Phlegmatized metal powder or alloy powder and method and reaction vessel for the production thereof 有权
    钝化金属粉末或合金粉末及其制备方法和反应容器

    公开(公告)号：US08821610B2

    公开(公告)日：2014-09-02

    申请号：US12746985

    申请日：2009-01-08

    Applicant: Ulrich Gerhard Baudis

    Inventor： Ulrich Gerhard Baudis

    IPC: B22F9/18 ,  C22C14/00 ,  C22C16/00

    CPC classification number: F27B19/02 ,  B22F9/18 ,  B22F9/20 ,  B22F9/22 ,  B22F2999/00 ,  C22B5/04 ,  C22B34/10 ,  C22B34/1268 ,  C22B34/1277 ,  C22B34/14 ,  F27D2005/0075 ,  Y10T428/2982 ,  B22F2201/013 ,  B22F2201/016 ,  B22F2201/02 ,  B22F2201/04 ,  B22F2201/30 ,  B22F2201/40

    Abstract: A method and a device are described for the production of metal powder or alloy powder of a moderate grain sizes less than 10 μm, comprising or containing at least one of the reactive metals zirconium, titanium, or hafnium, by metallothermic reduction of oxides or halogenides of the cited reactive metals with the aid of a reducing metal, wherein said metal powder or alloy powder is phlegmatized by adding a passivating gas or gas mixture during and/or after the reduction of the oxides or halogenides and/or is phlegmatized by adding a passivating solid before the reduction of the oxides or halogenides, wherein both said reduction and also said phlegmatization are performed in a single gas-tight reaction vessel which can be evacuated.

    Abstract translation: 描述了通过金属热还原氧化物或卤化物来生产中等粒度小于10μm的金属粉末或合金粉末的方法和装置，其包含或含有至少一种活性金属锆，钛或铪 的所述反应性金属，其中所述金属粉末或合金粉末通过在氧化物或卤化物还原期间和/或之后添加钝化气体或气体混合物和/或通过加入钝化气体或气体混合物而被钝化 在还原氧化物或卤化物之前钝化固体，其中所述还原和所述钝化都在可以抽空的单个气密反应容器中进行。

    METHOD FOR PRODUCING POWDER FOR MAGNET
    275.
    发明申请
    METHOD FOR PRODUCING POWDER FOR MAGNET 审中-公开
    制造磁粉用粉末的方法

    公开(公告)号：US20140112818A1

    公开(公告)日：2014-04-24

    申请号：US14142220

    申请日：2013-12-27

    Applicant: Sumitomo Electric Industries, Ltd.

    Inventor： Toru MAEDA

    IPC: H01F1/22 ,  H01F41/02

    CPC classification number: C22C33/02 ,  B22F3/02 ,  B22F9/00 ,  B22F2998/10 ,  B22F2999/00 ,  C21D1/74 ,  C21D6/00 ,  C22C1/1078 ,  C22C33/0228 ,  C22C38/001 ,  C22C38/005 ,  C22C2202/02 ,  H01F1/0552 ,  H01F1/0553 ,  H01F1/0556 ,  H01F1/059 ,  H01F1/08 ,  H01F1/22 ,  H01F41/0246 ,  H01F41/0266 ,  B22F2201/013 ,  B22F9/04 ,  B22F1/02 ,  B22F2003/248 ,  C22C1/1094 ,  B22F2201/02

    Abstract: Provided are a method for producing powder for a magnet, and methods for producing a powder compact, a rare-earth-iron-based alloy material, and a rare-earth-iron-nitrogen-based alloy material. Magnetic particles constituting the powder each have a texture in which grains of a phase of a hydride of a rare-earth element are dispersed in a phase of an iron-containing material. The uniform presence of the phase of the iron-containing material in each magnetic particle results in powder having excellent formability, thereby providing a powder compact having high relative density. The powder is produced by heat-treating rare-earth-iron-based alloy powder in a hydrogen atmosphere to separate the rare-earth element and the iron-containing material and then forming a hydride of the rare-earth element. The powder is compacted. The powder compact is heat-treated in vacuum to form a rare-earth-iron-based alloy material. The rare-earth-iron-based alloy material is heat-treated in a nitrogen atmosphere to form a rare-earth-iron-nitrogen-based alloy material.

    Abstract translation: 提供一种用于制造用于磁体的粉末的方法，以及制造粉末压块，稀土 - 铁基合金材料和稀土 - 铁 - 氮基合金材料的方法。 构成粉末的磁性颗粒各自具有将稀土元素的氢化物的相的粒子分散在含铁材料的相中的结构。 每个磁性颗粒中含铁材料相的均匀存在导致具有优异成形性的粉末，从而提供具有高相对密度的粉末压块。 通过在氢气氛中热处理稀土 - 铁基合金粉末来分离稀土元素和含铁材料，然后形成稀土元素的氢化物来制造粉末。 粉末被压实。 粉末压片在真空中热处理以形成稀土 - 铁基合金材料。 稀土 - 铁基合金材料在氮气气氛中进行热处理，形成稀土 - 铁 - 氮基合金材料。

    RARE EARTH-IRON-NITROGEN-BASED ALLOY MATERIAL, METHOD FOR PRODUCING RARE EARTH-IRON-NITROGEN-BASED ALLOY MATERIAL, RARE EARTH-IRON-BASED ALLOY MATERIAL, AND METHOD FOR PRODUCING RARE EARTH-IRON-BASED ALLOY MATERIAL
    278.
    发明申请
    RARE EARTH-IRON-NITROGEN-BASED ALLOY MATERIAL, METHOD FOR PRODUCING RARE EARTH-IRON-NITROGEN-BASED ALLOY MATERIAL, RARE EARTH-IRON-BASED ALLOY MATERIAL, AND METHOD FOR PRODUCING RARE EARTH-IRON-BASED ALLOY MATERIAL 审中-公开
    稀土 - 铁 - 氮合金材料，生产稀土 - 硝基 - 氮合金材料的方法，稀土金属合金材料及其制备稀土类金属合金材料的方法

    公开(公告)号：US20130252004A1

    公开(公告)日：2013-09-26

    申请号：US13824553

    申请日：2012-05-22

    Applicant: Toru Maeda ,  Asako Watanabe ,  Motoi Nagasawa ,  Takeshi Kato

    Inventor： Toru Maeda ,  Asako Watanabe ,  Motoi Nagasawa ,  Takeshi Kato

    IPC: H01F1/053 ,  H01F41/02

    CPC classification number: H01F1/053 ,  B22F3/087 ,  B22F3/1017 ,  B22F2998/10 ,  B22F2999/00 ,  C22C38/001 ,  C22C38/005 ,  C22C38/04 ,  C22C38/14 ,  H01F1/0573 ,  H01F1/059 ,  H01F41/0246 ,  H01F41/0266 ,  Y10T428/31678 ,  B22F1/0088 ,  B22F2201/013 ,  B22F2201/20 ,  B22F2201/10 ,  B22F3/02 ,  B22F2201/02

    Abstract: The present invention provides a rare earth-iron-nitrogen-based alloy material which can produce a rare earth magnet having excellent magnetic characteristics and a method for producing the same, a rare earth-iron-based alloy material suitable as a raw material of the rare earth magnet and a method for producing the alloy material. A rare earth-iron-based alloy material is heat-treated in a hydrogen-containing atmosphere to produce a multi-phase powder 1 in which a phase 3 of a hydrogen compound of a rare earth element is dispersedly present in a phase 2 of an iron-containing material. A powder compact 4 produced by compression-molding the multi-phase powder 1 is heat-treated in a vacuum with a magnetic field of 3 T or more applied, thereby forming a rare earth-iron-based alloy material 5. The rare earth-iron-based alloy material 5 is heat-treated in a nitrogen atmosphere with a magnetic field of 3.5 T or more applied, thereby forming a rare earth-iron-nitrogen-based alloy material 6. The rare earth-iron-based alloy material 5 has a structure in which a crystal of a rare earth-iron-based alloy is oriented in the c-axis direction. The rare earth-iron-nitrogen-based alloy material 6 composed of an ideal nitride can be formed by nitriding the rare earth-iron-based alloy material 5 having this oriented structure with the magnetic field applied, and a rare earth magnet 7 having excellent magnetic characteristics can be formed.

    Abstract translation: 本发明提供一种稀土 - 铁 - 氮系合金材料，其可以制造具有优异磁特性的稀土磁铁及其制造方法，稀土 - 铁基合金材料适合作为原料 稀土磁体和合金材料的制造方法。 稀土 - 铁基合金材料在含氢气氛中进行热处理，制成多相粉末1，其中稀土元素的氢化合物的相3分散存在于 含铁材料。 通过压缩多相粉末1制造的粉末压块4在施加3T以上的磁场的真空中进行热处理，从而形成稀土 - 铁基合金材料5.稀土 - 铁基合金材料5在施加3.5T以上的磁场的氮气气氛中进行热处理，形成稀土 - 铁 - 氮系合金材料6.稀土 - 铁系合金材料5 具有稀土 - 铁基合金的晶体在c轴方向取向的结构。 由理想的氮化物构成的稀土 - 铁 - 氮系合金材料6可以通过使施加磁场的具有取向结构的稀土 - 铁系合金材料5氮化而形成，并且具有优异的稀土类磁铁7 可以形成磁特性。

    Steel alloy and tools or components manufactured out of the steel alloy
    279.
    发明授权
    Steel alloy and tools or components manufactured out of the steel alloy 有权
    钢合金和由钢合金制成的工具或部件

    公开(公告)号：US08440136B2

    公开(公告)日：2013-05-14

    申请号：US13211630

    申请日：2011-08-17

    Applicant: Lennart Jönson ,  Odd Sandberg

    Inventor： Lennart Jönson ,  Odd Sandberg

    IPC: C22C38/48 ,  C22C38/46 ,  C22C38/50 ,  C22C38/06 ,  C22C38/56 ,  C22C38/58 ,  C22C38/44 ,  C22C38/52 ,  B21D45/28 ,  B29C45/00 ,  B29C47/00 ,  B22F3/00

    CPC classification number: C22C33/0285 ,  B22F2998/00 ,  B22F2998/10 ,  B26B3/00 ,  B26B9/00 ,  C22C38/001 ,  C22C38/02 ,  C22C38/04 ,  C22C38/22 ,  C22C38/24 ,  B22F9/082 ,  B22F1/0088 ,  B22F2201/02 ,  B22F3/15 ,  B22F3/17

    Abstract: The invention relates to a powder metallurgically manufactured steel with a chemical composition containing, in % by weight: 0.01-2 C, 0.6-10 N, 0.01-3.0 Si, 0.01-10.0 Mn, 16-30 Cr, 0.01-5 Ni, 0.01-5.0 (Mo+W/2), 0.01-9 Co, max. 0.5 S and 0.5-14 (V+Nb/2), where the contents of N on the one hand and of (V+Nb/2) on the other hand are balanced in relation to each other such that the contents of these elements are within an area that is defined by the coordinates A′, B′, G, H, A′, where the coordinates of [N, (V+Nb/2)] are: A′: [0.6,0.5]; B′: [1.6,0.5]; G: [9.8,14.0]; H: [2.6,14.0], and max. 7 of (Ti+Zr+Al), balance essentially only iron and impurities at normal amounts. The steel may be used for tools for injection molding, compression molding and extrusion of components of plastics, and cold working.

    Abstract translation: 本发明涉及一种粉末冶金制造的钢，其化学成分含有重量百分比：0.01-2C，0.6-10N，0.01-3.0Si，0.01-10.0Mn，16-30Cr，0.01-5Ni， 0.01-5.0（Mo + W / 2），0.01-9Co， 0.5 S和0.5-14（V + Nb / 2），其中一方面的N和（V + Nb / 2）的含量彼此平衡，使得这些元素的含量 在坐标A'，B'，G，H，A'定义的区域内，[N，（V + Nb / 2）]的坐标为：A'：[0.6,0.5]; B'：[1.6,0.5]; G：[9.8,14.0]; H：[2.6,14.0]，最大 7（Ti + Zr + Al），基本上只有铁和正常量的杂质。 钢可用于注塑，压塑和塑料部件的挤出和冷加工的工具。

    Free-Machining Powder Metallurgy Steel Articles and Method of Making Same
    280.
    发明申请
    Free-Machining Powder Metallurgy Steel Articles and Method of Making Same 有权
    自由加工粉末冶金钢制品及其制造方法

    公开(公告)号：US20120321500A1

    公开(公告)日：2012-12-20

    申请号：US13592541

    申请日：2012-08-23

    Applicant: Olivier Schiess ,  Pierre Marechal ,  Gregory J. De Corso

    Inventor： Olivier Schiess ,  Pierre Marechal ,  Gregory J. De Corso

    IPC: B22F5/00 ,  B22F3/12 ,  B22F3/24

    CPC classification number: B22F5/12 ,  B22F2003/247 ,  B22F2003/248 ,  B22F2998/10 ,  B22F2999/00 ,  C21D8/065 ,  C22C33/0264 ,  C22C33/0271 ,  C22C33/0285 ,  B22F9/082 ,  B22F3/15 ,  B22F3/18 ,  B22F3/20 ,  B22F3/24 ,  B22F2201/10 ,  B22F2201/02

    Abstract: A small diameter, elongated steel article, comprising fully consolidated, prealloyed metal powder is disclosed. The consolidated metal powder has a microstructure that has a substantially uniform distribution of fine grains having a grain size of not larger than about 9 when determined in accordance with ASTM Standard Specification E 112. The microstructure of the consolidated metal powder is further characterized by having a plurality of substantially spheroidal carbides uniformly distributed throughout the consolidated metal powder that are not greater than about 6 microns in major dimension and a plurality of sulfides uniformly distributed throughout the consolidated metal powder wherein the sulfides are not greater than about 2 microns in major dimension. A process for making the elongated steel article is also disclosed.

    Abstract translation: 公开了一种包括完全固结的预合金金属粉末的小直径细长钢制品。 固结的金属粉末具有根据ASTM标准规范E 112确定时具有基本均匀分布的具有不大于约9的粒度的微细颗粒的微结构。固结金属粉末的微结构进一步的特征在于具有 多个基本上球形的碳化物均匀分布在整个金属粉末中，其主要尺寸不大于约6微米，并且多个硫化物均匀分布在整个固结的金属粉末中，其中硫化物在主要尺寸上不大于约2微米。 还公开了制造细长钢制品的方法。

Patent Agency Ranking