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公开(公告)号：EP2438030A1
公开(公告)日：2012-04-11
申请号：EP10723796.8
申请日：2010-05-31
IPC分类号： C04B35/52 , C04B35/645 , C04B35/628 , C03B29/04 , E21B10/00
CPC分类号： C04B35/52 , C04B35/62842 , C04B35/62886 , C04B35/6455 , C04B2235/3817 , C04B2235/3839 , C04B2235/3843 , C04B2235/40 , C04B2235/402 , C04B2235/404 , C04B2235/405 , C04B2235/42 , C04B2235/427 , C04B2235/5436 , C04B2235/5445 , C04B2235/5472 , C04B2235/75 , C04B2235/80 , C04B2235/85 , C04B2235/95 , C22C26/00 , C22C2026/008 , C22C2204/00
摘要： A polycrystalline diamond (PCD) material 10 comprising at least 88 volume percent and at most 99 volume percent diamond grains 12, the mean diamond grain contiguity being greater than 60.5 percent. The PCD material 10 is particularly but not exclusively for use in boring into the earth.
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公开(公告)号：EP2403969A1
公开(公告)日：2012-01-11
申请号：EP10711264.1
申请日：2010-03-08
IPC分类号： C22C26/00 , E21B10/567
CPC分类号： B24D3/10 , B22F7/06 , B22F2005/001 , B22F2999/00 , B24D18/0009 , C22C26/00 , E21B10/5676 , E21B10/5735 , E21B2010/563 , B22F2207/03
摘要： An embodiment of a PCD insert comprises an embodiment of a PCD element joined to a cemented carbide substrate at an interface. The PCD element has internal diamond surfaces defining interstices between them. The PCD element further comprises a working surface and a low melting point region adjacent the working surface in which the interstices are at least partially filled with a low melting point metallic material having a melting point of less than about 1,300 degrees centigrade at atmospheric pressure, or less than about 1,200 degrees centigrade at atmospheric pressure. The PCD element includes an intermediate region, the interstices of the intermediate region being at least partially filled with a catalyst material for diamond.
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公开(公告)号：EP2121998A2
公开(公告)日：2009-11-25
申请号：EP08702567.2
申请日：2008-02-05
CPC分类号： C22C26/00 , C04B35/52 , C04B35/6303 , C04B2235/3839 , C04B2235/3847 , C04B2235/404 , C04B2235/405 , C04B2235/427 , C04B2235/5436 , C04B2235/5472 , C04B2235/5481 , C04B2235/80 , C22C2204/00
摘要： The invention is for a polycrystalline diamond material comprising a first phase of bonded diamond particles and a second phase interspersed through the first phase. The second phase contains vanadium in the form of the metal or vanadium carbide or vanadium tungsten carbide or two or more of these forms and may be present in the polycrystalline diamond material in the range 1 to 8 percent by mass of the material.
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公开(公告)号：EP2417277A2
公开(公告)日：2012-02-15
申请号：EP10711263.3
申请日：2010-03-08
发明人： LIVERSAGE, John Hewitt , SCOTT, Danny Eugene , SITHEBE, Humphrey Samkelo Lungisani , NAIDOO, Kaveshini , KAISER, Bronwyn Annette , FISH, Michael Lester
IPC分类号： C22C26/00 , E21B10/567
CPC分类号： B24D18/0027 , B22F2005/001 , B22F2999/00 , B24D18/0009 , C04B35/52 , C04B35/6316 , C04B35/645 , C04B37/021 , C04B41/4523 , C04B41/4529 , C04B41/81 , C04B41/88 , C04B2235/3817 , C04B2235/3826 , C04B2235/402 , C04B2235/428 , C04B2235/616 , C04B2235/656 , C04B2235/6567 , C04B2235/783 , C04B2235/786 , C04B2235/80 , C04B2237/363 , C04B2237/401 , C04B2237/60 , C04B2237/61 , C22C26/00 , E21B10/56 , E21B10/5735 , B22F2207/03
摘要： An embodiment of a PCD insert comprises an embodiment of a PCD element joined to a cemented carbide substrate at an interface. The PCD element has internal diamond surfaces defining interstices between them. The PCD element comprises a masked or passivated region and an unmasked or unpassivated region, the unmasked or unpassivated region defining a boundary with the substrate, the boundary being the interface. At least some of the internal diamond surfaces of the masked or passivated region contact a mask or passivation medium, and some or ail of the interstices of the masked or passivated region and of the unmasked or unpassivated region are at least partially filled with an infiltrant material.
摘要翻译： PCD插入件的实施例包括在界面处连接到硬质合金基底的PCD元件的实施例。 PCD元件具有限定它们之间的空隙的内部金刚石表面。 PCD元件包括掩模或钝化区域和未掩模或未钝化区域，未掩模或未钝化区域限定与衬底的边界，边界是界面。 掩模或钝化区域的至少一些内部金刚石表面接触掩模或钝化介质，掩模或钝化区域以及未掩模或未钝化区域的一些或全部空隙至少部分地填充有浸渍材料 。
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