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公开(公告)号：US11014157B2
公开(公告)日：2021-05-25
申请号：US15536875
申请日：2015-11-19
发明人： Yahua Bao
IPC分类号： E21B10/55 , E21B10/567 , B22F3/15 , C22C1/10 , C22C26/00 , B22F3/14 , B23B27/20 , B22F5/00 , B22F7/02 , C22B3/00
摘要： A method of making a polycrystalline diamond compact includes forming a first layer of polycrystalline diamond precursor materials comprising diamond particles and a first concentration of catalyst, forming a second layer of polycrystalline diamond precursor materials comprising diamond particles and a second concentration of catalyst, and placing a layer of an infiltrant material in the proximity of the first or the second layer of polycrystalline diamond precursor materials. The second concentration of catalyst is greater than the first concentration of catalyst. The infiltrant material is a catalyst. The first layer and the second layer are sintered under high-pressure high-temperature conditions in the presence of the infiltrant material to form the polycrystalline diamond compact. At least a portion of the catalyst is leached from the polycrystalline diamond compact.
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公开(公告)号：US20190275484A1
公开(公告)日：2019-09-12
申请号：US16420696
申请日：2019-05-23
摘要： A method of forming a polycrystalline diamond body includes mixing a sintering agent with diamond powder to form a premixed layer, the sintering agent including at least one alkaline earth metal carbonate; forming an infiltration layer adjacent to the premixed layer, the infiltration layer including an infiltrant material including at least one alkaline earth metal carbonate; and subjecting the premixed layer and the infiltration layer to high pressure high temperature conditions.
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公开(公告)号：US09422770B2
公开(公告)日：2016-08-23
申请号：US13728655
申请日：2012-12-27
发明人： J. Daniel Belnap , Yahua Bao , Youhe Zhang , Liang Zhao , Zhijun Lin
CPC分类号： E21B10/46 , B23K1/0008 , B23K1/008 , B23K1/19 , B23K31/025 , E21B10/567
摘要： A method for making a diamond compact includes pre-heating a diamond body which includes a carbonate catalyst to convert at least a portion of the carbonate catalyst into an oxide, assembling the diamond body and a substrate, providing a braze material between the diamond body and the substrate to form a diamond compact, heating the braze material to melt the braze material and form a braze joint between the diamond body and the substrate, and cooling the braze material after increasing the pressure. A bit having a diamond compact including a carbonate catalyst and a metal oxide mounted thereon.
摘要翻译： 制造金刚石致密体的方法包括预先加热包括碳酸酯催化剂的金刚石体，以将至少一部分碳酸酯催化剂转化为氧化物，组装金刚石体和基体，在金刚石体和金刚石体之间提供钎焊材料， 所述基底形成金刚石致密体，加热所述钎焊材料以熔化所述钎焊材料并在所述金刚石体和所述基底之间形成钎焊接头，以及在增加所述压力之后冷却所述钎焊材料。 有点具有安装在其上的碳酸酯催化剂和金属氧化物的金刚石压块。
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公开(公告)号：US11306542B2
公开(公告)日：2022-04-19
申请号：US14481570
申请日：2014-09-09
发明人： Yahua Bao , Liang Zhao , J. Daniel Belnap , Zhijun Lin
IPC分类号： E21B10/567 , E21B10/43 , B24D3/10 , B24D18/00 , E21B10/573 , B24D99/00 , B24D3/04
摘要： A method of making a cutting element includes subjecting a mixture of diamond particles and a carbonate material to high-pressure high-temperature sintering conditions to form a sintered carbonate-polycrystalline diamond body having a diamond matrix of diamond grains bonded together and carbonates residing in the interstitial regions between the diamond grains, the carbonate material having a non-uniform distribution throughout the diamond matrix. The carbonate-polycrystalline diamond body is subjected to a controlled temperature, a controlled pressure condition or a combination thereof, to effect an at least partial decomposition of the carbonate material.
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公开(公告)号：US10442057B2
公开(公告)日：2019-10-15
申请号：US15382770
申请日：2016-12-19
发明人： Yahua Bao
摘要： A polycrystalline diamond body, and a method for making a carbonate polycrystalline diamond body includes combining a first quantity of diamond particles with a first quantity of magnesium carbonate to form a first layer in an enclosure, the first layer having a working surface, and placing a second quantity of magnesium carbonate in the enclosure forming a second layer, the first layer and the second layer forming an assembly. A quantity of at least one of silicon or aluminum is mixed in with or placed adjacent to at least one of the first layer or the second layer. The assembly, including the at least one of silicon or aluminum, is sintered at high pressure and high temperature, causing the at least one of silicon or aluminum to infiltrate at least one layer of the assembly, forming a polycrystalline diamond body.
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公开(公告)号：US10352105B2
公开(公告)日：2019-07-16
申请号：US15276183
申请日：2016-09-26
摘要： A method of making a polycrystalline diamond compact includes forming multiple layers of premixed diamond particles and carbonate material, where the carbonate material includes an alkaline earth metal carbonate, and where each layer has a weight percent ratio of diamond to carbonate that is different from adjacent layers. The layers are subjected to high pressure high temperature conditions to form polycrystalline diamond.
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公开(公告)号：US10350733B2
公开(公告)日：2019-07-16
申请号：US14957847
申请日：2015-12-03
发明人： Liang Zhao , Xiaoge Gan , Yahua Bao , Yuri Y. Burhan , Youhe Zhang , J. Daniel Belnap , Zhijun Lin
摘要： Methods for joining an ultra-hard body, such as a thermally stable polycrystalline diamond (TSP) body, to a substrate and mitigating the formation of high stress concentration regions between the ultra-hard body and the substrate. One method includes covering at least a portion of the ultra-hard body with an intermediate layer, placing the ultra-hard body and the intermediate layer in a mold, filling a remaining portion of mold with a substrate material including a matrix material and a binder material such that the intermediate layer is disposed between the ultra-hard body and the substrate material, and heating the mold to an infiltration temperature configured to melt the binder material and form the substrate.
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公开(公告)号：US20180371844A1
公开(公告)日：2018-12-27
申请号：US16061680
申请日：2016-12-14
发明人： Yahua Bao , John Daniel Belnap
摘要： A cutting bit includes a body, a plurality of blades, and at least one ultrahard insert cast directly into at least one of the plurality of blades. The ultrahard insert is positioned with a rear face directly contacting the blade.
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公开(公告)号：US10105824B2
公开(公告)日：2018-10-23
申请号：US14566039
申请日：2014-12-10
发明人： Yahua Bao , J. Daniel Belnap , Liang Zhao
摘要： A method for treating a polycrystalline diamond material includes subjecting the polycrystalline diamond material to a leaching process and to a thermal decomposition process.
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10.发明申请公开(公告)号：US20180169987A1
公开(公告)日：2018-06-21
申请号：US15899735
申请日：2018-02-20
CPC分类号： B30B11/004 , B01J3/065 , B01J3/067 , B30B15/00
摘要： HPHT press system includes a thermal insulation layer. The thermal insulation layer includes CsCl, CsBr, CsI, or a combination thereof, and the thermal insulation layer is electrically insulating. The thermal insulation layer may include a thermal insulation sleeve and/or a thermal insulation button for an HPHT cell.
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