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189 条记录 (耗时 0.023 秒)

    DESOXIDATION VON VENTILMETALLPULVERN
    1.
    发明公开
    DESOXIDATION VON VENTILMETALLPULVERN 审中-公开
    脱氧阀金属粉末

    公开(公告)号：EP1793950A2

    公开(公告)日：2007-06-13

    申请号：EP05782917.8

    申请日：2005-08-26

    申请人： H.C. Starck GmbH & Co. KG

    发明人： LÖFFELHOLZ, Josua ,  BARTMANN, Ulrich

    IPC分类号： B22F9/22

    CPC分类号： C22B5/12 ,  B22F9/22 ,  C22B5/04 ,  C22B34/24 ,  H01G9/0525

    摘要： The invention relates to the deoxidisation of valve metal powders, in particular of niobium powders, tantalum powders or their alloys by treating the valve metal powder with calcium, barium, lanthanum, yttrium or cerium as the deoxidisation agent. The invention also relates to valve metal powders, which are characterised by a ratio of the sum of the sodium, potassium and magnesium content to the capacitance of less than 3 ppm/10,000 µFV/g.

    INTERMETALLISCHE NICKEL-ALUMINIUM-BASISLEGIERUNG
    2.
    发明授权
    INTERMETALLISCHE NICKEL-ALUMINIUM-BASISLEGIERUNG 失效
    内金属镍铝基合金

    公开(公告)号：EP0760869B1

    公开(公告)日：2001-04-25

    申请号：EP95920844.8

    申请日：1995-05-19

    申请人： SIEMENS AKTIENGESELLSCHAFT ,  H.C. STARCK GmbH & Co. KG

    发明人： SAUTHOFF, Gerhard ,  ZEUMER, Benedikt

    IPC分类号： C22C19/03 ,  C22C32/00 ,  C22C19/00

    CPC分类号： C22C19/057

    摘要： A nickel-aluminium intermetallic basis alloy has a structure mainly made of the binary phase NiAl and further contains the elements chromium and tantalum. The total proportion of the elements chromium and tantalum amounts to maximum 12 % by atoms. The preferable content ranges lie from 0.3 to 3.8 % by atoms tantalum and from 1.0 to 9.0 % by atoms chromium. The nickel-aluminium intermetallic basis alloy is characterised in particular by a high oxidation resistance at high temperatures, such as 1350 DEG C. It is therefore suitable for producing pieces exposed to a high and continuous thermal stress, such as gas turbine blades. This high oxidation resistance allows additional anti-oxidation layers to be dispensed with.

    METALLPULVER-GRANULAT, VERFAHREN ZU SEINER HERSTELLUNG SOWIE DESSEN VERWENDUNG
    5.
    发明公开
    METALLPULVER-GRANULAT, VERFAHREN ZU SEINER HERSTELLUNG SOWIE DESSEN VERWENDUNG 失效
    金属粉末颗粒，方法生产及其用途

    公开(公告)号：EP0956173A1

    公开(公告)日：1999-11-17

    申请号：EP96939034.0

    申请日：1996-11-14

    申请人： H.C. Starck GmbH & Co. KG

    发明人： HÖHNE, Matthias ,  GRIES, Benno

    IPC分类号： B22F1 ,  B22F9 ,  C22C19

    CPC分类号： B22F9/22 ,  B22F1/0096 ,  B22F2998/10 ,  B22F2999/00 ,  B22F9/026

    摘要： The invention concerns metal powder granulates comprising one or a plurality of the metals Co, Cu, Ni, W and Mo. The invention further concerns a method for the production of these granulates and the use thereof. The production method is characterized in that a metal compound comprising one or a plurality of the groups comprising oxides, hydroxides, carbonates, hydrogenocarbonates, oxalates, acetates, formiates with binder and optionally in addition between 40 and 80 % solvent, relative to the solids content, is granulated as the starting component, and the granulates are thermally reduced in a hydrogen-containing gaseous atmosphere to form the metal powder granulates, the binder and the solvent, if used, being removed completely.

    KOBALTMETALLAGGLOMERATE, VERFAHREN ZU IHRER HERSTELLUNG SOWIE DEREN VERWENDUNG
    9.
    发明公开
    KOBALTMETALLAGGLOMERATE, VERFAHREN ZU IHRER HERSTELLUNG SOWIE DEREN VERWENDUNG 失效
    KOBALTMETALLAGGLOMERATE，VERFAHREN ZU IHRER HERSTELLUNG SOWIE DEREN VERWENDUNG

    公开(公告)号：EP0828578A1

    公开(公告)日：1998-03-18

    申请号：EP96919774.0

    申请日：1996-05-14

    申请人： H.C. Starck GmbH & Co. KG

    发明人： GÖRGE, Astrid ,  MEESE-MARKTSCHEFFEL, Juliane ,  NAUMANN, Dirk ,  OLBRICH, Armin ,  SCHRUMPF, Frank

    IPC分类号： B22F1 ,  B22F9 ,  C01G51 ,  C22B23 ,  H01M4 ,  H01M10

    CPC分类号： B22F9/22 ,  C01G51/04 ,  C01P2004/03 ,  C01P2004/32 ,  C01P2004/50 ,  C01P2004/61 ,  C01P2004/62 ,  C01P2006/12 ,  C01P2006/80 ,  H01M4/52

    摘要： The present invention concerns cobalt metal agglomerates consisting of peanut-shaped primary particles, a method of producing them and their use. The primary particles have a mean particle size of between 0.1 and 0.7 νm. The proposed method is characterised in that in a first step an aqueous cobalt (II) salt solution of the formula CoX2, in which X = Cl, NO and/or 1/2 SO, is converted with aqueous solutions or suspensions of alkali and/or ammonium carbonates and/or hydrocarbonates at temperatures of between 40 and 100 °C, thus forming basic cobalt carbonate. This step is followed by separation and neutral salt-free washing. The basic cobalt carbonate thus obtained is converted by the addition of alkaline lyes to Co(OH)2, oxidized with oxidizing agents to form the heterogenite CoO(OH) which is then reduced with reducing agents to form the cobalt metal agglomerates. These can be used for producing cobalt sintered articles and positive electrodes in alkaline secondary batteries.

    摘要翻译： 本发明涉及由花生形状的一次颗粒组成的钴金属团聚体，其生产方法及其用途。 一次颗粒的平均粒度在0.1至0.7νm之间。 所提出的方法的特征在于，在第一步中，将式CoX 2的钴（II）盐水溶液（其中X = Cl，NO和/或1 / 2SO）与碱和/或碱土金属的水溶液或悬浮液 或碳酸铵和/或碳酸氢铵在40-100℃的温度下反应，从而形成碱式碳酸钴。 该步骤之后是分离和中性无盐洗涤。 如此得到的碱式碳酸钴通过加入碱性碱液转化为Co（OH）2，用氧化剂氧化形成多原子CoO（OH），然后用还原剂还原形成钴金属团聚体。 这些可用于生产碱性二次电池中的钴烧结制品和正极。