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    STRIKE TIP FOR A PICK TOOL HAVING A FLAT APEX AREA
    7.
    发明公开
    STRIKE TIP FOR A PICK TOOL HAVING A FLAT APEX AREA 有权
    AUFTREFFSPITZE与扁平顶部区域拾取工具

    公开(公告)号：EP2900917A2

    公开(公告)日：2015-08-05

    申请号：EP13767001.4

    申请日：2013-09-27

    申请人： Element Six GmbH

    发明人： RIES, Bernd, Heinrich ,  LACHMANN, Frank, Friedrich

    IPC分类号： E21C35/183 ,  E01C23/088

    摘要： A strike tip (100) for a pick tool, comprising a strike structure (120) joined to a substrate (110) at an interface boundary (115), the strike structure (120) comprising or consisting or super-hard material and the substrate (110) comprising or consisting of carbide material; the strike tip having a proximate strike end (117) coterminous with the super-hard material and a distal end (118) defined by the substrate (110), a side connecting the strike and distal ends; the strike end (117) including a flat apex area (150) and an outer area extending from the apex to the side. The apex area (150) is substantially less than the outer area, and is at least 1 square millimetre and at most 25 square millimetres.

    CEMENTED CARBIDE ARTICLE AND METHOD FOR MAKING SAME
    9.
    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。