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    METHOD OF MAKING A BIT FOR A ROTARY DRILL
    4.
    发明公开
    METHOD OF MAKING A BIT FOR A ROTARY DRILL 有权
    一种用于生产钻井螺丝的转动钻具

    公开(公告)号：EP2648874A1

    公开(公告)日：2013-10-16

    申请号：EP11794151.8

    申请日：2011-12-09

    申请人： Element Six Limited ,  Element Six Abrasives S.A.

    发明人： KASONDE, Maweja ,  BARRY, John James

    IPC分类号： B23P15/32 ,  B23B51/00

    CPC分类号： B23P15/32

    摘要： A method of manufacturing a bit for a rotary drill, the bit including a drill tip (30), the method including providing a precursor structure (10) comprising substrate body (14) and a super-hard structure (12) joined to an upper surface of the substrate body; cutting a plurality of conformal inserts (20) from the precursor structure (10), each insert (20) comprising a part of the super-hard structure; providing a drill tip (30) configured for receiving the insert (20); and joining the insert to the drill tip (30).

    METHOD FOR MAKING SUPER-HARD CONSTRUCTIONS
    9.
    发明公开
    METHOD FOR MAKING SUPER-HARD CONSTRUCTIONS 审中-公开
    VERFAHREN ZUR HERSTELLUNG SUPERHARTER KONSTRUKTIONEN

    公开(公告)号：EP2838681A1

    公开(公告)日：2015-02-25

    申请号：EP13716327.5

    申请日：2013-04-17

    申请人： Element Six Abrasives S.A. ,  Element Six Limited

    发明人： KASONDE, Maweja ,  CHOENYANE, Leshope Joseph ,  RADEBE, Erens Tshepo ,  BARRY, John James

    IPC分类号： B22F3/14 ,  B23C5/10 ,  B22F7/06 ,  B23P15/34

    CPC分类号： B28B3/025 ,  B22F3/14 ,  B22F7/062 ,  B23B2226/125 ,  B23B2226/315 ,  B23C5/10 ,  B23C2226/125 ,  B23C2226/315 ,  B23P15/34 ,  C04B35/52 ,  C04B35/5831 ,  C04B35/64 ,  C22C26/00

    摘要： A method of making a construction comprising a polycrystalline super-hard structure joined to a side surface of an elongate substrate. The method includes: providing a vessel configured for an ultra-high pressure, high temperature furnace, the vessel having an elongate cavity for containing a pre-sinter assembly and defining a longitudinal axis, the cavity having opposite ends connected by a cavity wall. The pre-sinter assembly comprises the substrate, an aggregation comprising a plurality of super-hard grains arranged over at least a part of the side surface of the substrate, and a spacer structure configured for spacing the substrate apart from the cavity wall. The spacer structure comprises material having a Young's modulus of at least 300 GPa. The method further includes inserting the pre-sinter assembly into the cavity, the substrate being substantially longitudinally aligned and the spacer structure arranged between the side surface of the substrate and the cavity wall; applying a force to the pre-sinter assembly and heating it to a temperature, the force being sufficient to generate a pressure within the vessel for sintering the aggregation at the temperature, and providing the construction.

    摘要翻译： 一种制造结构的方法，其包括结合到细长基板的侧表面的多晶超硬结构。 该方法包括：提供构造用于超高压高温炉的容器，所述容器具有用于容纳预烧结组件并限定纵向轴线的细长空腔，该腔体具有通过空腔壁连接的相对端。 预烧结组件包括衬底，包含布置在衬底的侧表面的至少一部分上的多个超硬晶粒的聚集体和被配置为将衬底与空腔壁分隔开的间隔结构。 间隔结构包括具有至少300GPa的杨氏模量的材料。 该方法还包括将预烧结组件插入空腔中，基底基本上纵向对准，并且间隔结构布置在基板的侧表面和空腔壁之间; 向预烧结组件施加力并将其加热到一个温度，该力足以在容器内产生压力以在该温度下烧结聚集体，并提供该结构。