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公开(公告)号：US08968436B2
公开(公告)日：2015-03-03
申请号：US13330805
申请日：2011-12-20
IPC分类号： B24D18/00 , C22C26/00 , B22F5/00 , B22F7/06 , B24D99/00 , E21B10/567 , E21B10/573 , B01J3/06
CPC分类号： B24D3/06 , B01J3/062 , B01J2203/062 , B01J2203/063 , B01J2203/0655 , B01J2203/0685 , B22F5/00 , B22F7/06 , B24D18/0009 , B24D99/005 , C22C26/00 , E21B10/567 , E21B10/573
摘要： A cutting element include a substrate and a diamond compact including at least two polycrystalline diamond portions separated by at least one metal carbide foil portion. The cutting element is made by placing diamond powder in a reaction container, placing a thin metal layer in the reaction container above or around the diamond powder and binder, placing additional diamond powder in the reaction container above or around the thin metal layer, and placing a pre-sintered substrate containing binder into the reaction container above all diamond powder and thin metal layer components. The assembled reaction container is put into a reactor and is subjected to a high-temperature high-pressure sintering process. The binder in the pre-sintered substrate sweeps through to sinter the first diamond portion, and then reacts with the thin metal layer to form a metal carbide, and then the binder continues to sweep through to sinter the second diamond portion.
摘要翻译： 切割元件包括基底和金刚石致密体，其包括由至少一个金属碳化物箔部分分开的至少两个多晶金刚石部分。 切割元件通过将金刚石粉末放置在反应容器中，将金属薄层放置在金刚石粉末和粘合剂上方或周围的反应容器中，在金属层上方或周围将反应容器中的另外的金刚石粉末放置在反应容器中， 将包含粘合剂的预烧结基材置于反应容器中，高于所有金刚石粉末和薄金属层组分。 将组装的反应容器放入反应器中并进行高温高压烧结工艺。 预烧结衬底中的粘合剂扫过以烧结第一金刚石部分，然后与薄金属层反应形成金属碳化物，然后粘合剂继续扫过以烧结第二金刚石部分。
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82.发明授权Methods of forming diamond particles having organic compounds attached thereto and compositions thereof 有权形成附着有有机化合物的金刚石颗粒及其组合物的方法公开(公告)号：US08936659B2
公开(公告)日：2015-01-20
申请号：US13275872
申请日：2011-10-18
CPC分类号： C09K3/1436 , B01J3/062 , B01J2203/062 , B01J2203/0655 , B01J2203/0685 , B24D99/005 , B82Y30/00 , C01B32/28 , Y10T428/2982
摘要： A substance includes diamond particles having a maximum linear dimension of less than about 1 μm and an organic compound attached to surfaces of the diamond particles. The organic compound may include a surfactant or a polymer. A method of forming a substance includes exposing diamond particles to an organic compound, and exposing the diamond particles in the presence of the organic compound to ultrasonic energy. The diamond particles may have a maximum linear dimension of less than about 1 μm. A composition includes a liquid, a plurality of diamond nanoparticles dispersed within the liquid, and an organic compound attached to surfaces of the diamond nanoparticles. A method includes mixing a plurality of diamond particles with a solution comprising a liquid solvent and an organic compound, and exposing the mixture including the plurality of diamond nanoparticles and the solution to ultrasonic energy.
摘要翻译： 物质包括具有小于约1μm的最大线性尺寸的金刚石颗粒和附着到金刚石颗粒表面的有机化合物。 有机化合物可以包括表面活性剂或聚合物。 形成物质的方法包括将金刚石颗粒暴露于有机化合物，并将有机化合物存在下的金刚石颗粒暴露于超声波能量。 金刚石颗粒可以具有小于约1μm的最大线性尺寸。 组合物包括液体，分散在液体内的多个金刚石纳米颗粒和附着到金刚石纳米颗粒表面的有机化合物。 一种方法包括将多个金刚石颗粒与包含液体溶剂和有机化合物的溶液混合，并将包括多个金刚石纳米颗粒和溶液的混合物暴露于超声波能量。
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公开(公告)号：US08741010B2
公开(公告)日：2014-06-03
申请号：US13241877
申请日：2011-09-23
申请人： Robert Frushour
发明人： Robert Frushour
IPC分类号： B24D18/00
CPC分类号： B01J3/062 , B01J2203/062 , B01J2203/0655 , B01J2203/0685
摘要： A method for making PDC with excellent abrasion resistance at high pressure in a single HPHT step without introducing high residual internal stress. In one aspect of the method, the diamond mass is subjected to an initial high pressure to compact the mass. The initial pressure is then lowered to a second pressure prior to the application of heat to the reaction cell. In another aspect, the diamond mass is subjected to an initial pressure to compact the mass, followed by raising the temperature to melt the sintering aid. The initial pressure is then lowered to a second pressure prior to lowering the temperature below the melting point of the sintering aid.
摘要翻译： 在单个HPHT步骤中，在高压下制备具有优异耐磨性的PDC的方法，而不引入高残留内应力。 在该方法的一个方面中，使金刚石块经受初始高压以压实质量。 然后在向反应池施加热量之前将初始压力降低至第二压力。 在另一方面，将金刚石质料经受初始压力以压实质量，随后升高温度以熔化烧结助剂。 然后在降低低于烧结助剂熔点的温度之前将初始压力降低至第二压力。
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公开(公告)号：US20140084669A1
公开(公告)日：2014-03-27
申请号：US14114876
申请日：2012-05-09
IPC分类号： E21C35/183 , E21B10/567
CPC分类号： E21C35/183 , B01J3/062 , B01J2203/062 , B01J2203/0655 , B01J2203/068 , B01J2203/0685 , B25D17/02 , B25D2222/09 , B25D2222/72 , E21B10/567 , E21B10/5673 , E21C2035/1813 , E21C2035/1816
摘要： A tip for a degradation tool, the tip comprising a PCD structure (20) joined to a cemented carbide substrate (30); the PCD structure comprising a plurality of strata (24, 25) arranged so that adjacent strata have alternating compressive and tensile stress states, adjacent strata comprising different PCD grades and being directly bonded to each other by inter-growth of diamond grains; each stratum having a mean thickness of at most 500 microns; the PCD structure defining a working end including a rounded conical apex (22) having a radius of curvature of 1.3 mm to 4 mm.
摘要翻译： 用于降解工具的尖端，所述尖端包括连接到硬质合金基底（30）的PCD结构（20）; PCD结构包括多个层（24,25），其布置成使得相邻层具有交替的压缩和拉伸应力状态，相邻层包含不同的PCD等级并且通过金刚石晶粒的相互生长直接地彼此结合; 每个层的平均厚度至多为500微米; PCD结构限定工作端，其包括具有1.3mm至4mm的曲率半径的圆锥形顶点（22）。
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公开(公告)号：US20130291443A1
公开(公告)日：2013-11-07
申请号：US13817441
申请日：2011-08-26
IPC分类号： B24D3/10
CPC分类号： B24D3/10 , B01J3/062 , B01J2203/062 , B01J2203/0655 , B01J2203/0685 , B82Y30/00 , C01B32/28 , C04B35/52 , C04B35/62805 , C04B35/6281 , C04B35/62886 , C04B35/62889 , C04B35/62897 , C04B35/645 , C04B2235/3201 , C04B2235/3206 , C04B2235/3208 , C04B2235/3213 , C04B2235/3215 , C04B2235/427 , C04B2235/44 , C04B2235/442 , C04B2235/5436 , C04B2235/5454 , C04B2235/604 , C04B2235/656 , C04B2235/6567 , C04B2235/77 , C04B2235/96
摘要： A method for making polycrystalline diamond material comprises providing a plurality of diamond particles or grains, coating the diamond particles or grains with a binder material comprising a non-metallic catalyst material for diamond, consolidating the coated diamond particles or grains to form a green body, and subjecting the green body to a temperature and pressure at which diamond is thermodynamically stable, sintering and forming polycrystalline diamond material.
摘要翻译： 一种用于制造多晶金刚石材料的方法包括提供多个金刚石颗粒或颗粒，用包含用于金刚石的非金属催化剂材料的粘合剂材料涂覆金刚石颗粒或颗粒，固化涂覆的金刚石颗粒或颗粒以形成生坯， 并使生坯在金刚石热力学稳定的温度和压力下进行烧结并形成多晶金刚石材料。
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公开(公告)号：US08404010B2
公开(公告)日：2013-03-26
申请号：US12518745
申请日：2007-12-13
申请人： Steven W. Webb
发明人： Steven W. Webb
CPC分类号： B24D3/342 , B01J3/062 , B01J2203/061 , B01J2203/062 , B01J2203/0645 , B01J2203/0655 , B01J2203/066 , B01J2203/0685 , C09K3/1436 , C22C26/00 , C22C2026/007 , C22C2026/008
摘要： An abrasive compact may include an ultra-hard phase that may include ultra-hard particles having a Knoop hardness of 5000 KHN or greater, a sinter catalyst, and a reaction phase that may include a catalyst-ceramic compound having a Knoop hardness lower than that of the ultra-hard phase.
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公开(公告)号：US08361429B2
公开(公告)日：2013-01-29
申请号：US13245249
申请日：2011-09-26
CPC分类号： E21B10/46 , B01J3/062 , B01J2203/062 , B01J2203/0655 , B01J2203/0685
摘要： Embodiments relate to methods of fabricating PCD materials by subjecting a mixture that exhibits a broad diamond particle size distribution to an HPHT process, PCD materials so-formed, and PDCs including a polycrystalline diamond table comprising such PCD materials. In an embodiment, a PCD material includes a plurality of bonded diamond grains that exhibit a substantially unimodal diamond grain size distribution characterized, at least in part, by a parameter θ that is less than about 1.0. θ = x 6 · σ , where x is the average grain size of the substantially unimodal diamond grain size distribution, and σ is the standard deviation of the substantially unimodal diamond grain size distribution.
摘要翻译： 实施方案涉及通过使表现出宽金刚石粒度分布的混合物经受HPHT方法，所形成的PCD材料和包括包含这种PCD材料的多晶金刚石台的PDC来制造PCD材料的方法。 在一个实施方案中，PCD材料包括多个结合的金刚石晶粒，其表现出基本上单峰金刚石晶粒尺寸分布，其至少部分地由参数和特征表征; 小于约1.0。 ＆thetas; = x 6·＆sgr ，其中x是基本上单峰金刚石晶粒尺寸分布的平均晶粒尺寸， 是基本上单峰金刚石晶粒尺寸分布的标准偏差。
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公开(公告)号：US08349040B2
公开(公告)日：2013-01-08
申请号：US12499679
申请日：2009-07-08
申请人： Federico Bellin
发明人： Federico Bellin
CPC分类号： B01J3/062 , B01J2203/062 , B01J2203/0645 , B01J2203/0655 , B01J2203/066 , B01J2203/0685
摘要： The present invention relates to polycrystalline ultra hard material cutting elements, and more particularly to a method of forming a polycrystalline ultra hard material cutting element with a thicker ultra hard layer than cutting elements formed by prior art methods. In an exemplary embodiment, such a method includes pre-sintering the ultra hard material powder to form an ultra hard material layer that is partially or fully densified prior to HPHT sintering, so that the ultra hard layer is pre-shrunk. This pre-sintering in an exemplary embodiment is achieved by means of a spark plasma process, or in another exemplary embodiment by a microwave sintering process.
摘要翻译： 本发明涉及多晶超硬材料切割元件，更具体地涉及一种形成具有比通过现有技术形成的切割元件更厚的超硬层的多晶超硬材料切割元件的方法。 在一个示例性实施例中，这种方法包括预烧结超硬材料粉末以形成在HPHT烧结之前部分或完全致密化的超硬材料层，使得超硬层被预收缩。 在示例性实施例中的这种预烧结通过火花等离子体工艺实现，或者在另一示例性实施例中通过微波烧结工艺实现。
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公开(公告)号：US20130000993A1
公开(公告)日：2013-01-03
申请号：US13534927
申请日：2012-06-27
申请人： Thembinkosi Shabalala , Nedret Can
发明人： Thembinkosi Shabalala , Nedret Can
CPC分类号： E21B10/5735 , B01J3/062 , B01J2203/062 , B01J2203/0655 , B01J2203/0685 , B24D18/0009 , E21B10/36 , E21B10/54 , E21B10/567 , E21B2010/545
摘要： A polycrystalline superhard construction comprises a body of polycrystalline superhard material, and a substrate of hard material bonded thereto along an interface. The body of polycrystalline superhard material comprises a first region abutting the substrate along the interface and a second region bonded to the first region. The second region defines a rake face, a cutting edge, a chamfer and at least a part of a flank face, the cutting edge being defined by an edge of the flank face joined to the chamfer, the chamfer extending between the cutting edge and the rake face. The height of the chamfer in a plane parallel to the plane through which the longitudinal axis of the polycrystalline superhard construction extends is less than the thickness of the second region. The first region comprises a material having coarser grains than the second region. There is also disclosed a method of making the same.
摘要翻译： 多晶超硬结构包括多晶超硬材料体，以及沿着界面与其结合的硬质材料的基板。 多晶超硬材料体包括沿着界面邻接基板的第一区域和与第一区域结合的第二区域。 所述第二区域限定前刀面，切削刃，倒角和所述侧面的至少一部分，所述切削刃由连接到所述倒角的所述侧面的边缘限定，所述倒角在所述切削刃和所述切削刃之间延伸 耙面 平行于多晶超硬结构的纵轴延伸的平面的平面中的倒角的高度小于第二区域的厚度。 第一区域包括具有比第二区域更粗的颗粒的材料。 还公开了一种制造其的方法。
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公开(公告)号：US08316969B1
公开(公告)日：2012-11-27
申请号：US11424674
申请日：2006-06-16
CPC分类号： B01J3/062 , B01J2203/061 , B01J2203/062 , B01J2203/0655 , B01J2203/0685 , B24D3/08 , E21B10/567
摘要： Methods of manufacturing sintered superabrasive structures are disclosed. For example, a plurality of agglomerated granules comprising at least one superabrasive material may be provided and exposed to a pressure and a temperature sufficient to sinter the at least one superabrasive material. In another example, a plurality of agglomerated granules comprising diamond may be provided and exposed to a pressure and a temperature sufficient to form polycrystalline diamond. Articles of manufacture including at least one superabrasive material are disclosed. For example, a polycrystalline diamond compact may comprise a volume of polycrystalline diamond bonded to a substrate, wherein the volume of polycrystalline diamond includes a plurality of agglomerated granules which have been sintered. A drill bit comprising at least one cutting element including a volume of polycrystalline diamond bonded to a substrate wherein the volume of polycrystalline diamond includes a plurality of agglomerated granules which have been sintered is disclosed.
摘要翻译： 公开了制造烧结超级磨料结构的方法。 例如，可以提供包含至少一种超级磨料材料的多个附聚颗粒并暴露于足以烧结至少一种超级磨料的压力和温度。 在另一个实例中，可以提供包含金刚石的多个附聚颗粒并暴露于足以形成多晶金刚石的压力和温度。 公开了包括至少一种超级磨料的制品。 例如，多晶金刚石压块可以包括结合到基底的多晶金刚石的体积，其中多晶金刚石的体积包括已经烧结的多个附聚颗粒。 一种钻头，其包括至少一个切割元件，该切割元件包括结合到基底的多晶金刚石体积，其中多晶金刚石的体积包括已经烧结的多个附聚颗粒。
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