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    Composite tooth for working the ground or rock
    2.
    发明授权
    Composite tooth for working the ground or rock 有权
    用于加工地面或岩石的复合齿

    公开(公告)号：US08646192B2

    公开(公告)日：2014-02-11

    申请号：US13119669

    申请日：2009-08-26

    申请人： Guy Berton

    发明人： Guy Berton

    IPC分类号： E02F3/00

    CPC分类号： C22C1/055 ,  B22D19/06 ,  B22D19/14 ,  B22F2005/001 ,  B22F2301/35 ,  B22F2302/10 ,  B22F2303/01 ,  B22F2303/05 ,  B22F2998/00 ,  B22F2998/10 ,  C22C1/1036 ,  C22C29/06 ,  C22C33/0242 ,  E02F9/285 ,  E02F9/2866 ,  B22F3/23 ,  B22F3/02 ,  B22F3/26

    摘要： The present invention discloses a composite tooth for working the ground or rocks, said tooth comprising a ferrous alloy at least partially reinforced with titanium carbide according to a defined geometry, in which said reinforced portion comprises an alternating macro-microstructure of millimetric areas concentrated with micrometric globular particles of titanium carbide separated by millimetric areas essentially free of micrometric globular particles of titanium carbide, said areas concentrated with micrometric globular particles of titanium carbide forming a microstructure in which the micrometric interstices between said globular particles are also filled by said ferrous alloy.

    摘要翻译： 本发明公开了一种用于对地面或岩石进行加工的复合齿，所述齿包括根据规定的几何形状至少部分地用碳化钛增强的铁合金，其中所述增强部分包括用微米级浓缩的毫米级的交替宏观微观结构 所述碳化钛的球形颗粒由毫米级区域分离，基本上不含碳化钛的微球状颗粒，所述区域用碳化钛的微球状颗粒浓缩，形成微结构，其中所述球状颗粒之间的微米间隙也由所述含铁合金填充。

    Method for manufacture of noble metal alloy catalysts and catalysts prepared therewith
    4.
    发明申请
    Method for manufacture of noble metal alloy catalysts and catalysts prepared therewith 有权
    制备贵金属合金催化剂的方法及其制备的催化剂

    公开(公告)号：US20100190641A1

    公开(公告)日：2010-07-29

    申请号：US12752410

    申请日：2010-04-01

    申请人： Dan V. GOIA ,  Marco LOPEZ ,  Tapan Kumar SAU ,  Mihaela-Ortansa Jitianu

    发明人： Dan V. GOIA ,  Marco LOPEZ ,  Tapan Kumar SAU ,  Mihaela-Ortansa Jitianu

    IPC分类号： B01J23/42 ,  B01J23/52 ,  B01J23/75

    CPC分类号： B82Y30/00 ,  B01D53/944 ,  B01D2255/1021 ,  B01D2255/1026 ,  B01D2255/106 ,  B01D2255/20746 ,  B01D2255/9202 ,  B01D2257/502 ,  B01J21/18 ,  B01J23/40 ,  B01J23/462 ,  B01J23/52 ,  B01J23/8913 ,  B01J35/0013 ,  B01J35/006 ,  B01J37/0072 ,  B01J37/0211 ,  B01J37/088 ,  B22F9/24 ,  B22F2998/00 ,  H01M4/921 ,  H01M4/926 ,  B22F2303/01 ,  B22F2301/25 ,  B22F2303/05 ,  B22F2301/15

    摘要： The present invention provides a method for manufacture of supported noble metal based alloy catalysts with a high degree of alloying and a small crystallite size. The method is based on the use of polyol solvents as reaction medium and comprises of a two-step reduction process in the presence of a support material. In the first step, the first metal (M1 =transition metal; e.g. Co, Cr, Ru) is activated by increasing the reaction temperature to 80 to 160° C. In the second step, the second metal (M2=noble metal; e.g. Pt, Pd, Au and mixtures thereof) is added and the slurry is heated to the boiling point of the polyol solvent in a range of 160 to 300° C. Due to this two-step method, an uniform reduction occurs, resulting in noble metal based catalysts with a high degree of alloying and a small crystallite size of less than 3 nm. Due to the high degree of alloying, the lattice constants are lowered. The catalysts manufactured according to the method are used as electrocatalysts for polymer electrolyte membrane fuel cells (PEMFC), direct-methanol fuel cells (DMFC) or as gas phase catalysts for CO oxidation or exhaust gas purification.

    摘要翻译： 本发明提供一种具有高合金化和微晶尺寸的负载型贵金属基合金催化剂的制造方法。 该方法基于使用多元醇溶剂作为反应介质，并且包括在存在载体材料的情况下的两步还原过程。 在第一步骤中，第一金属（M1 =过渡金属，例如Co，Cr，Ru）通过将反应温度升高至80至160℃来活化。在第二步中，第二金属（M2 =贵金属;例如 Pt，Pd，Au及其混合物），将浆料加热到多元醇溶剂的沸点在160〜300℃的范围内。由于这种两步法，发生均匀的还原，导致贵金属 具有高度合金化和小于3nm的微晶尺寸的金属基催化剂。 由于高合金化，晶格常数降低。 根据该方法制造的催化剂用作聚合物电解质膜燃料电池（PEMFC），直接甲醇燃料电池（DMFC）或用于CO氧化或废气净化的气相催化剂的电极催化剂。

    Coated cemented carbide insert particularly useful for heavy duty operations
    8.
    发明申请
    Coated cemented carbide insert particularly useful for heavy duty operations 有权
    涂层硬质合金刀片特别适用于重型作业

    公开(公告)号：US20080166192A1

    公开(公告)日：2008-07-10

    申请号：US12003372

    申请日：2007-12-21

    申请人： Leif Akesson ,  Kenneth Westergren

    发明人： Leif Akesson ,  Kenneth Westergren

    IPC分类号： C22C29/02 ,  B32B15/04 ,  B23P15/28 ,  B26D1/01 ,  B05D3/00

    CPC分类号： C22C29/08 ,  B22F2005/001 ,  B22F2998/00 ,  B22F2999/00 ,  C23C28/042 ,  C23C28/044 ,  C23C30/005 ,  Y10T407/27 ,  Y10T428/12576 ,  Y10T428/24975 ,  Y10T428/252 ,  Y10T428/265 ,  B22F2207/03 ,  B22F2303/05 ,  B22F2302/10 ,  B22F2302/15

    摘要： The present invention relates to coated cutting tool inserts particularly useful for heavy roughing turning operations of very large steel components, such as drive shafts for ships and shafts for wind power plants. The inserts are large with an iC, inscribed circle diameter, of greater than or equal to about 19 mm and a thickness of greater than or equal to about 6 mm with a composition of from about 5 to about 10 wt-% Co, from about 5 to about 12 wt-% cubic carbides or carbonitrides of the metals Ti, Ta and/or Nb, and balance WC with a stratified binder phase enriched surface zone from about 15 to about 40 μm thick. The inserts have an edge rounding before coating of 35-95 μm. The coating comprises a first, innermost layer of TiCxNyOz and a total thickness from about 0.1 to about 1.5 μm, a second layer of TiCxNy with a thickness of from about 4.5 to about 9.5 μm with columnar grains, a third layer of TiCxNyOz with a thickness of from about 0.3 to about 1.5 μm, a fourth layer of a smooth α-Al2O3 with a thickness of from about 4.5 to about 9.5 μm and, a from about 0.1 to about 2 μm thick colored top layer, preferably TiN or ZrN, on the clearance sides. The invention also relates to the method of making such inserts and the use thereof for heavy roughing turning operations of very large steel components.

    摘要翻译： 本发明涉及对于非常大的钢部件（例如用于船舶的驱动轴和用于风力发电厂的轴）的重型粗加工车削操作特别有用的涂覆切削刀具插入件。 插入件大，iC，内径圆直径大于或等于约19mm，厚度大于或等于约6mm，组成为约5至约10重量％Co，约为约 金属Ti，Ta和/或Nb的5至约12重量％的立方碳化物或碳氮化物，以及具有约15至约40μm厚的层状粘结相富集表面区域的平衡WC。 在35-95μm的涂层之前，刀片具有四边形的边缘。 涂层包括第一最内层的TiC x N y O z O z z，总厚度为约0.1至约1.5μm，第二层 层厚度为约4.5至约9.5μm的TiC x N N y Y层与柱状晶粒，第三层TiC x N N， 具有约0.3至约1.5μm的厚度的第三层平滑的α-Al 2 O 3 在间隙侧具有约4.5至约9.5μm厚度的厚度和约0.1至约2μm厚的着色顶层，优选为TiN或ZrN。 本发明还涉及制造这种刀片的方法及其用于非常大的钢部件的粗加工车削操作的用途。