OXIDE-DISPERSION-STRENGTHENED PLATINUM MATERIAL
    294.
    发明公开
    OXIDE-DISPERSION-STRENGTHENED PLATINUM MATERIAL 审中-公开
    氧化物弥散强化铂材料

    公开(公告)号:EP1712646A1

    公开(公告)日:2006-10-18

    申请号:EP05790584.6

    申请日:2005-10-06

    Abstract: The present invention aims at providing an oxide-dispersed platinum material which can be stably used at high temperatures and has excellent weldability.
    The present invention provides an oxide-dispersion-strengthened platinum material in which dispersed particles made from a metallic oxide of an additive metal are dispersed in a matrix made from platinum or a platinum alloy, characterized in that the concentration of oxygen in the material except oxygen bound to the additive metal is 100 ppm or lower. The platinum material according to the present invention has preferably an average diameter of the dispersed particles of 0.2 µm or smaller, and an average interparticle distance of 0.01 to 2.7 µm. The platinum material also preferably has the concentration of the dispersed particles in an amount of 0.01 to 0.5 wt%, and an oxidation rate of the additive metal of 50 to 100%.

    Abstract translation: 本发明的目的在于提供一种能够在高温下稳定使用且具有优异的焊接性的氧化物分散铂材料。 本发明提供一种氧化物分散体强化铂材料,其中由添加金属的金属氧化物制成的分散颗粒分散在由铂或铂合金制成的基体中,其特征在于,除氧之外的材料中的氧浓度 与添加剂金属结合的浓度为100ppm或更低。 本发明的铂材料优选分散粒子的平均直径为0.2μm以下,平均粒子间距离为0.01〜2.7μm。 铂材料的分散粒子的浓度优选为0.01〜0.5重量%,添加金属的氧化率为50〜100%。

    CORROSION-RESISTANT R-Fe-B BONDED MAGNET AND POWDER FOR FORMING R-Fe-B BONDED MAGNET AND METHOD FOR PREPARATION THEREOF
    295.
    发明公开
    CORROSION-RESISTANT R-Fe-B BONDED MAGNET AND POWDER FOR FORMING R-Fe-B BONDED MAGNET AND METHOD FOR PREPARATION THEREOF 有权
    用于制造R-FE-BVERBUNDMAGNETS及其制造方法耐蚀R-FE-B复合磁铁和粉末。

    公开(公告)号:EP1220241A4

    公开(公告)日:2006-10-11

    申请号:EP00937212

    申请日:2000-06-12

    Applicant: NEOMAX CO LTD

    Inventor: IKEGAMI TAKASHI

    Abstract: A powder for forming a R-Fe-B bonded magnet, wherein an R compound, such as an R oxide, an R carbide, an R nitride or an R hydride, which is contained in a raw material powder such as a super rapidly cooled powder or a hydrogen treated powder (HDDR powder) and reacts with water vapor to change into R(OH)3, has been converted to a R hydroxide R(OH)3 being stable in the air by subjecting the raw material powder to a heat treatment in an atmosphere of a pressured water vapor. The powder for forming an R-Fe-B bonded magnet is free from the generation of a white powder in the surface of or inside a bonded magnet formed from the powder, and accordingly, is free from the occurrence of cracking, chipping, swelling or the like in the bonded magnet caused by volume expansion of a white powder. Thus, the above powder can be used for preparing an R-Fe-B bonded magnet which is free from the white powder which has been observed in a conventional R-Fe-B bonded magnet in the use for a long period of time and is reduced in the occurrence of defects such as cracking, chipping, swelling and the like.

    METHOD AND APPARATUS FOR THE PRODUCTION OF METAL POWDER
    296.
    发明公开
    METHOD AND APPARATUS FOR THE PRODUCTION OF METAL POWDER 审中-公开
    VERFAHREN UND VORRICHTUNG ZUR HERSTELLUNG VON METALLPULVER

    公开(公告)号:EP1449605A1

    公开(公告)日:2004-08-25

    申请号:EP02802371.1

    申请日:2002-10-24

    CPC classification number: B22F9/14 B22F2999/00 B22F2201/05

    Abstract: Provide a method and apparatus for producing, in an economical manner, metal powder offering high purity and comprising uniform particle shape and size. Produce metal powder of titanium metal, etc., using an apparatus that comprises a power supply for high-voltage/current discharge, a feeder of metal electrode made of titanium metal, etc., a high-voltage discharge generator equipped with a metal electrode made of titanium, etc., and its counter electrode, a water tank, a water inlet, an outlet for produced metal dispersion solution containing titanium metal, etc., a discharge pump, and an adjunct device for separating/recovering metal powder of titanium metal, etc., from the metal dispersion solution containing titanium metal, etc.

    Abstract translation: 提供一种以经济的方式生产提供高纯度并且包含均匀的颗粒形状和尺寸的金属粉末的方法和装置。 使用包括用于高压/电流放电的电源的装置,由钛金属制成的金属电极的馈电装置等来生产钛金属等的金属粉末,配备有金属电极的高压放电发生器 钛等制成的对置电极,水箱,进水口,含有钛金属的金属分散溶液的出口等,排出泵,金属粉末分离·回收用辅助装置 金属等,来自含有金属分散液的钛金属等

    Alloy steel powders, sintered bodies and method
    299.
    发明公开
    Alloy steel powders, sintered bodies and method 失效
    Legierungsstahlpulver,Sinterkörper和Verfahren

    公开(公告)号:EP0960953A3

    公开(公告)日:2002-08-21

    申请号:EP99107380.0

    申请日:1995-02-17

    Abstract: Alloy steel powders capable of obtaining high strength in a sintered state and having excellent compacting compressibility and methods of manufacturing a sintered body. The alloy steel powder comprises, by wt%, about 0.5 - 2% of Cr, not greater than about 0.08% of Mn, about 0.1 - 0.6% of Mo, about 0.05 - 0.5% of V, not greater than about 0.015 of S, not greater than about 0.2% of O, and the balance being Fe and incidental impurities. The alloy steel powder is compacted and sintered at a temperature at about 1100 - 1300°C and then cooled at a cooling rate no higher than about 1°C/s in a temperature range of from about 800°C to 400°C. The alloy steel powder can contain Nb and/or Ti and one or more of Co, W and B. Additionally, Ni powder and/or Cu powder may be adhered and dispersed onto the surface of the alloy steel powder.

    Abstract translation: 能够在烧结状态下获得高强度并且具有优异的压实压缩性的合金钢粉末和制造烧结体的方法。 合金钢粉末按重量计包含约0.5-2%的Cr,不大于约0.08%的Mn,约0.1-0.6%的Mo,约0.05-0.5%的V,不大于约0.015的S ,不大于约0.2%的O,余量为Fe和附带的杂质。 合金钢粉末在约1100-1300℃的温度下压实和烧结,然后在约800℃至400℃的温度范围内以不高于约1℃/ s的冷却速率冷却。 合金钢粉末可以含有Nb和/或Ti以及Co,W和B中的一种或多种。另外,可以将Ni粉末和/或Cu粉末粘附并分散在合金钢粉末的表面上。

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