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    CEMENTED CARBIDE MATERIAL
    5.
    发明公开
    CEMENTED CARBIDE MATERIAL 有权
    硬金属材料

    公开(公告)号：EP2691198A1

    公开(公告)日：2014-02-05

    申请号：EP12713043.3

    申请日：2012-03-27

    申请人： Element Six GmbH

    发明人： KONYASHIN, Igor Yurievich ,  RIES, Bernd Heinrich ,  LACHMANN, Frank Friedrich

    IPC分类号： B22F7/00 ,  C22C29/00 ,  C22C29/08

    CPC分类号： B22F3/24 ,  B22F7/00 ,  B22F7/008 ,  B22F2003/248 ,  B22F2005/001 ,  B22F2301/15 ,  B22F2302/10 ,  C22C29/005 ,  C22C29/067 ,  C22C29/08

    摘要： Cemented carbide material comprising tungsten carbide (WC) material in particulate form having a mean grain size D in terms of equivalent circle diameter of at least 0.5 microns and at most 10 microns, and a binder phase comprising cobalt (Co) of at least 5 weight per cent and at most 12 weight per cent, W being present in the binder at a content of at least 10 weight per cent of the binder material; the content of the WC material being at least 75 weight per cent and at most 95 weight per cent; and nanoparticles dispersed in the binder material, the nanoparticles comprising material according to the formula CoxWyCz, where X is a value in the range from 1 to 7, Y is a value in the range from 1 to 10 and Z is a value in the range from 0 to 4; the nanoparticles having a mean particle size at most 10 nm, at least 10 per cent of the nanoparticles having size of at most 5 nm; the cemented carbide material having a magnetic coercive force in the units kA/m of at least -2.1 X D + 14.

    CEMENTED CARBIDE ARTICLE AND METHOD FOR MAKING SAME
    6.
    发明公开
    CEMENTED CARBIDE ARTICLE AND METHOD FOR MAKING SAME 有权
    ZEMENTIERTER KARBIDARTIKEL UND VERFAHREN ZUR DESSEN HERSTELLUNG

    公开(公告)号：EP2665571A1

    公开(公告)日：2013-11-27

    申请号：EP12700556.9

    申请日：2012-01-17

    申请人： Element Six GmbH

    发明人： KONYASHIN, Igor Yurievich ,  RIES, Bernd Heinrich ,  LACHMANN, Frank Friedrich

    IPC分类号： B22F7/00 ,  B23B27/02 ,  B23B27/14 ,  C22C29/00 ,  C22C29/02 ,  C22C29/06 ,  C22C29/08

    CPC分类号： C22C29/08 ,  B22F3/10 ,  B22F3/1028 ,  B22F3/24 ,  B22F7/06 ,  B22F2003/248 ,  B22F2301/15 ,  B22F2301/35 ,  B22F2302/10 ,  Y10T428/12139

    摘要： A cemented carbide article comprising a core of metal carbide grains and a binder selected from cobalt, nickel, iron and alloys containing at least one of these metals, and a surface layer which comprises (by weight) 5-25 % tungsten and 0.1-5 % carbon and a metal or alloy selected from the binder metals and alloys. The surface layer is substantially free of carbide grains as determined by optical microscopy or SEM. The cemented carbide article can be made by forming a mixture of metal carbide grains and a binder selected from cobalt, iron and nickel and alloys containing one or more of these metals, pressing the mixture to form the article, sintering the article and cooling the article to a temperature at which the binder is substantially solid in an inert gas, nitrogen, hydrogen or a mixture thereof in at least three cooling stages, the cooling rates being progressively lower rates.

    摘要翻译： 本发明涉及一种硬质合金制品，其包含金属碳化物颗粒的芯和选自钴，镍，铁的粘合剂和含有这些金属中的一种或多种的合金和限定该制品的外表面的表面层，表面层 包括5至25重量％的钨和0.1至5重量％的碳，其余的表面层包含选自粘合剂金属和合金的金属或合金，并且表面层基本上不含碳化物颗粒，如通过光学显微镜或 SEM。 还提供了一种生产硬质合金制品的方法。

    CEMENTED CARBIDE MATERIAL
    7.
    发明公开
    CEMENTED CARBIDE MATERIAL 审中-公开

    公开(公告)号：EP3515636A1

    公开(公告)日：2019-07-31

    申请号：EP18755475.3

    申请日：2018-08-16

    申请人： Element Six GmbH

    发明人： KONYASHIN, Igor Yurievich ,  RIES, Bernd Heinrich

    IPC分类号： B22F3/10 ,  C04B35/56 ,  C22C1/05 ,  C22C29/08

    摘要： A cemented carbide body is provided with improved resistance to mechanical fatigue. The cemented carbide body comprises tantalum in the binder matrix material. The tantalum content is between 1.5 weight per cent and 3.5 weight per cent of the binder content. The binder comprises tantalum-containing inclusions having a mean largest linear dimension of no more than 80 nm

    METHOD OF COATING A BODY, GRANULES FOR THE METHOD AND METHOD OF MAKING GRANULES
    8.
    发明公开
    METHOD OF COATING A BODY, GRANULES FOR THE METHOD AND METHOD OF MAKING GRANULES 审中-公开
    用于涂覆体的方法，颗粒剂，用于生产颗粒的方法和手段

    公开(公告)号：EP3149218A1

    公开(公告)日：2017-04-05

    申请号：EP15726072.0

    申请日：2015-05-22

    申请人： Element Six Gmbh

    发明人： KONYASHIN, Igor Yurievich ,  HLAWATSCHEK, Daniel ,  RIES, Bernd Heinrich

    IPC分类号： C23C4/06 ,  C23C4/12 ,  B22F3/105 ,  B29C67/00

    CPC分类号： C23C4/067 ,  B22F3/1055 ,  B22F9/04 ,  B22F9/06 ,  B22F2003/1056 ,  B22F2998/10 ,  B22F2999/00 ,  B33Y10/00 ,  B33Y70/00 ,  C22C1/051 ,  C22C1/1084 ,  C22C29/06 ,  C22C29/08 ,  C22C29/10 ,  C23C4/06 ,  C23C4/131 ,  C23C4/134 ,  Y02P10/295 ,  B22F1/0096 ,  B22F1/0085 ,  B22F3/1035 ,  B22F3/15 ,  B22F1/0059 ,  B22F2009/047 ,  B22F2201/20

    摘要： A method and granules for coating a body. Each granule comprises silicon (Si), carbon (C), chromium (Cr) and iron group metal selected from iron (Fe), cobalt (Co) and nickel (Ni). The relative quantities of the Si, C and Cr are such that a molten phase comprising the Si, C, Cr and the iron group metal will form at a melting temperature of less than 1,300 degrees Celsius when at least a threshold quantity of the iron group metal is accessible to the Si, C and Cr; but each granule comprising substantially less than the threshold quantity of the iron group metal. A second source of the iron group metal is provided. A combination of the granules and the second source is formed such that at least the threshold quantity of the iron group metal will be accessible to the Si, C and Cr. The granules and the second source are heated to at least the melting temperature to form the molten phase in contact with the body. The heat is then removed to allow the molten phase to solidify and to provide the coated body.

    摘要翻译： 一种方法和用于涂覆体颗粒。 每个颗粒包含硅（Si），碳（C），铬（Cr）和铁族金属从铁（Fe）中选择，钴（Co）和镍（Ni）。 的Si，C和Cr的相对量进行了研究做了熔融相，其包含所述Si，C，Cr和铁族金属将形成在摄氏小于1300℃的熔融温度当至少铁族的阈值数量 金属是在Si，C和Cr可访问的; 但每个颗粒包括比铁族金属的量的阈值小得多。 设置在铁族金属的第二个来源。 所述颗粒和所述第二源的组合形成的搜索没有至少铁族金属的阈值量将是与Si，C和Cr访问。 所述颗粒和所述第二源极被加热到至少熔融温度，以形成在与身体接触的熔融相。 然后，热量被移除以允许熔融相凝固并提供涂装体。