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
    151.
    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

    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。

    Permanent magnet and manufacturing method thereof
    152.
    发明授权
    Permanent magnet and manufacturing method thereof 有权
    永磁体及其制造方法

    公开(公告)号:US08480818B2

    公开(公告)日:2013-07-09

    申请号:US13499442

    申请日:2011-03-28

    Abstract: There are provided a permanent magnet and a manufacturing method thereof capable of preventing grain growth in a main phase and enabling rare-earth rich phase to be uniformly dispersed. To fine powder of milled neodymium magnet material is added an organometallic compound solution containing an organometallic compound expressed with a structural formula of M-(OR)x (in the formula, M represents Cu or Al, R represents a substituent group consisting of a straight-chain or branched-chain hydrocarbon, x represents an arbitrary integer) so as to uniformly adhere the organometallic compound to particle surfaces of the neodymium magnet powder. Thereafter, a compact body formed by compacting the above neodymium magnet powder is held for several hours in hydrogen atmosphere at 200 through 900 degrees Celsius. Thereafter, through a sintering process, a permanent magnet is manufactured.

    Abstract translation: 提供了能够防止主相中的晶粒生长并使稀土类富集相均匀分散的永久磁铁及其制造方法。 向研磨的钕磁体材料的细粉末中加入含有以结构式M-(OR)x表示的有机金属化合物的有机金属化合物溶液(在该式中,M表示Cu或Al,R表示由直链 链或支链烃,x表示任意的整数),以使有机金属化合物均匀地附着在钕磁体粉末的粒子表面上。 此后,通过压制上述钕磁体粉末形成的紧凑体在200-900摄氏度的氢气气氛中保持数小时。 此后,通过烧结工艺制造永久磁铁。

    RECYCLING OF TUNGSTEN CARBIDES
    155.
    发明申请
    RECYCLING OF TUNGSTEN CARBIDES 失效
    铁素体的回收

    公开(公告)号:US20120251380A1

    公开(公告)日:2012-10-04

    申请号:US13500313

    申请日:2010-10-26

    Inventor: Johan Arvidsson

    Abstract: The invention relates to a process for producing an iron-and/or tungsten containing powder or powder agglomerate including the steps of: a) mixing at least a first powder fraction comprising a tungsten carbide containing powder, and at least a second powder fraction comprising an iron oxide powder and/or a tungsten oxide containing powder and optionally an iron powder, the weight of the first fraction being in the range of 50-90% by weight of the mix and the weight of the second fraction being in the range of 10-50% by weight of the mix, b) heating the mix of step a) to a temperature in the range of 400-1300° C., preferably 1000-1200° C. The invention also relates to an iron-and/or tungsten containing powder or powder agglomerate.

    Abstract translation: 本发明涉及一种生产含铁和/或钨的粉末或粉末附聚物的方法,包括以下步骤:a)将包含含碳化钨的粉末的至少第一粉末部分和至少包含第 氧化铁粉末和/或含氧化钨粉末和任选的铁粉末,第一部分的重量在混合物的50-90重量%的范围内,第二部分的重量在10 -50重量%的混合物,b)将步骤a)的混合物加热至400-1300℃,优选1000-1200℃的温度。本发明还涉及铁和/或 含钨粉末或粉末附聚物。

    POWDER FOR MAGNET
    156.
    发明申请
    POWDER FOR MAGNET 有权
    磁粉粉

    公开(公告)号:US20120244030A1

    公开(公告)日:2012-09-27

    申请号:US13513677

    申请日:2010-12-02

    Applicant: Toru Maeda

    Inventor: Toru Maeda

    Abstract: Provided are a powder for a magnet, which provides a rare-earth magnet having excellent magnet properties and which has excellent formability, a method for producing the powder for a magnet, a powder compact, a rare-earth-iron-based alloy material, and a rare-earth-iron-nitrogen-based alloy material which are used as materials for the magnet, and methods for producing the powder compact and these alloy materials. Magnetic particles 1 constituting the powder for a magnet each have a texture in which grains of a phase 3 of a hydride of a rare-earth element are dispersed in a phase 2 of an iron-containing material, such as Fe. The uniform presence of the phase 2 of the iron-containing material in each magnetic particle 1 results in the powder having excellent formability, thereby providing a powder compact 4 having a high relative density. The powder for a magnet is produced by heat-treating a rare-earth-iron-based alloy powder in a hydrogen atmosphere to separate the rare-earth element and the iron-containing material from each other and then forming a hydride of the rare-earth element. The powder for a magnet is subjected to compacting to form the powder compact 4. The powder compact 4 is subjected to heat treatment in vacuum to form a rare-earth-iron-based alloy material 5. The rare-earth-iron-based alloy material 5 is subjected to heat treatment in a nitrogen atmosphere to form a rare-earth-iron-nitrogen-based alloy material 6.

    Abstract translation: 提供一种用于磁体的粉末,其提供具有优异的磁性能并且具有优异的成形性的稀土磁体,用于制造用于磁体的粉末的方法,粉末压块,稀土 - 铁基合金材料, 以及作为磁铁材料使用的稀土 - 铁 - 氮系合金材料以及这些合金材料的制造方法。 构成磁体用粉末的磁性粒子1具有将稀土类元素的氢化物的相3的粒子分散在Fe等含铁材料的相2中的结构。 每个磁性颗粒1中含铁材料的相2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4。 通过在氢气氛中对稀土类铁系合金粉末进行热处理,将稀土类元素和含铁物质分离,然后形成稀土类铁系合金粉末, 地球元素 对磁体粉末进行压实以形成粉末压块4.粉末压块4在真空中进行热处理以形成稀土 - 铁基合金材料5.稀土 - 铁基合金 材料5在氮气气氛中进行热处理,形成稀土 - 铁 - 氮基合金材料6。

    CEMENTED CARBIDE - METALLIC ALLOY COMPOSITES
    157.
    发明申请
    CEMENTED CARBIDE - METALLIC ALLOY COMPOSITES 审中-公开
    硬质合金 - 金属合金复合材料

    公开(公告)号:US20120237386A1

    公开(公告)日:2012-09-20

    申请号:US13487323

    申请日:2012-06-04

    Abstract: A method of making a composite sintered powder metal article includes providing a first powder comprising hard particles and a powdered binder in a first region of a mold. Providing a second powder comprising a metal or metal alloy powder in a second region of the mold, wherein the second powder contacts the first powder and comprises at least one of a metal powder and a metallic alloy powder. The first powder and the second powder are consolidated in the mold to provide a green compact. The green compact is sintered to provide a composite sintered powder metal article comprising a cemented hard particle region formed from the first powder and metallurgically bonded to a metallic second region formed from the second powder.

    Abstract translation: 制造复合烧结粉末金属制品的方法包括在模具的第一区域中提供包含硬颗粒和粉末状粘合剂的第一粉末。 在模具的第二区域中提供包含金属或金属合金粉末的第二粉末,其中第二粉末接触第一粉末并且包括金属粉末和金属合金粉末中的至少一种。 将第一粉末和第二粉末固结在模具中以提供生坯。 生坯被烧结以提供复合烧结粉末金属制品,其包括由第一粉末形成的粘结硬质颗粒区域并冶金结合到由第二粉末形成的金属第二区域。

    PERMANENT MAGNET AND MANUFACTURING METHOD THEREOF
    158.
    发明申请
    PERMANENT MAGNET AND MANUFACTURING METHOD THEREOF 有权
    永磁体及其制造方法

    公开(公告)号:US20120182106A1

    公开(公告)日:2012-07-19

    申请号:US13499442

    申请日:2011-03-28

    Abstract: There are provided a permanent magnet and a manufacturing method thereof capable of preventing grain growth in a main phase and enabling rare-earth rich phase to be uniformly dispersed. To fine powder of milled neodymium magnet material is added an organometallic compound solution containing an organometallic compound expressed with a structural formula of M-(OR)x (in the formula, M represents Cu or Al, R represents a substituent group consisting of a straight-chain or branched-chain hydrocarbon, x represents an arbitrary integer) so as to uniformly adhere the organometallic compound to particle surfaces of the neodymium magnet powder. Thereafter, a compact body formed by compacting the above neodymium magnet powder is held for several hours in hydrogen atmosphere at 200 through 900 degrees Celsius. Thereafter, through a sintering process, a permanent magnet is manufactured.

    Abstract translation: 提供了能够防止主相中的晶粒生长并使稀土类富集相均匀分散的永久磁铁及其制造方法。 向研磨的钕磁体材料的细粉末中加入含有以结构式M-(OR)x表示的有机金属化合物的有机金属化合物溶液(在该式中,M表示Cu或Al,R表示由直链 链或支链烃,x表示任意的整数),以使有机金属化合物均匀地附着在钕磁体粉末的粒子表面上。 此后,通过压制上述钕磁体粉末形成的紧凑体在200-900摄氏度的氢气气氛中保持数小时。 此后,通过烧结工艺制造永久磁铁。

    Cemented carbide—metallic alloy composites
    159.
    发明授权
    Cemented carbide—metallic alloy composites 有权
    硬质合金 - 金属合金复合材料

    公开(公告)号:US08221517B2

    公开(公告)日:2012-07-17

    申请号:US12476738

    申请日:2009-06-02

    Abstract: A macroscopic composite sintered powder metal article including a first region including cemented hard particles, for example, cemented carbide. The article includes a second region including one of a metal and a metallic alloy selected from the group consisting of a steel, nickel, a nickel alloy, titanium, a titanium alloy, molybdenum, a molybdenum alloy, cobalt, a cobalt alloy, tungsten, and a tungsten alloy. The first region is metallurgically bonded to the second region, and the second region has a thickness of greater than 100 microns. A method of making a macroscopic composite sintered powder metal article is also disclosed, herein. The method includes co-press and sintering a first metal powder including hard particles and a powder binder and a second metal powder including the metal or metal alloy.

    Abstract translation: 一种宏观复合烧结粉末金属制品,其包括具有硬质合金的第一区域,例如硬质合金。 所述制品包括第二区域,所述第二区域包括选自钢,镍,镍合金,钛,钛合金,钼,钼合金,钴,钴合金,钨中的金属和金属合金之一, 和钨合金。 第一区域冶金结合到第二区域,第二区域具有大于100微米的厚度。 本文还公开了制造宏观复合烧结粉末金属制品的方法。 该方法包括将包含硬颗粒和粉末粘合剂的第一金属粉末和包括金属或金属合金的第二金属粉末共压并烧结。

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