A ROCK DRILL BUTTON
    1.
    发明申请
    A ROCK DRILL BUTTON 审中-公开
    摇滚钻头

    公开(公告)号:WO2016151025A1

    公开(公告)日:2016-09-29

    申请号:PCT/EP2016/056403

    申请日:2016-03-23

    CPC classification number: C22C29/067 B22F2005/001 C22C29/08 E21B10/56

    Abstract: A rock drill button, comprising a body made of sintered cemented carbide that comprises hard constituents of tungsten carbide (WC) in a binder phase comprising Co, wherein the cemented carbide comprises 4-12 mass% Co and balance WC and unavoidable impurities. The rock drill button is characterized in that said cemented carbide also comprises Cr in such an amount that the Cr/Co ratio is within the range of 0.043-0.19, and that the WC grain size mean value is above 1.75 µm.

    Abstract translation: 一种凿钻按钮,包括由包含Co的粘结相中的碳化钨(WC)的硬质成分的烧结硬质合金制成的主体,其中所述硬质合金包括4-12质量%的Co和余量WC和不可避免的杂质。 凿岩按钮的特征在于,所述硬质合金还包括Cr / Co比在0.043-0.19范围内的Cr,并且WC晶粒尺寸平均值大于1.75μm。

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