-
公开(公告)号：US10428591B2
公开(公告)日：2019-10-01
申请号：US15585373
申请日：2017-05-03
发明人： Suresh G. Patel , David A. Stockey , Alejandro Flores , Anthony A. DiGiovanni , Danny E. Scott , Leroy W. Ledgerwood, III
IPC分类号： E21B10/46 , E21B10/55 , E21B10/62 , E21B10/567 , B24D99/00 , E21B10/43 , B24D18/00 , B24D3/00 , C23C16/27 , E21B10/573 , E21B10/42
摘要： A cutting element for an earth-boring tool includes a substrate and volume of superabrasive material positioned on the substrate. The volume of superabrasive material includes a cutting face having at least one recess extending into the volume of superabrasive material and/or at least one protrusion extending outward from the volume of superabrasive material. The volume of superabrasive material includes a first chamfer surface having a peripheral edge and a radially innermost edge. The peripheral edge of the first chamfer surface is located proximate a cutting edge of the volume of superabrasive material. A radial width of the first chamfer surface is between about 0.002 inch and about 0.045 inch. The volume of superabrasive material also includes a second chamfer surface having a peripheral edge and a radially innermost edge. The peripheral edge of the second chamfer surface is located adjacent the radially innermost edge of the first chamfer surface.
-
公开(公告)号：US10350563B2
公开(公告)日：2019-07-16
申请号：US15068140
申请日：2016-03-11
摘要： Methods for forming cutting elements comprising polycrystalline materials, methods for forming polycrystalline compacts for cutting elements of a drilling tool, methods for forming polycrystalline diamond compacts, and resulting polycrystalline compacts and cutting elements are disclosed. Grains of a hard material are introduced to a press and subjected to a high-pressure, high-temperature (HPHT) process to sinter the grains. The system conditions (i.e., temperature and pressure) are then adjusted past a phase or state change point, after which, at least one of the system conditions is held during an anneal stage before the system conditions are adjusted to final levels. The resulting compacts and cutting elements may therefore include inter-granularly bonded hard material grains with a more stable microstructure (e.g., less stressed microstructure) than a polycrystalline compact and cutting element formed without an anneal stage during the HPHT process.
-
公开(公告)号：US10279454B2
公开(公告)日：2019-05-07
申请号：US13839589
申请日：2013-03-15
IPC分类号： B22F1/00 , B22F3/14 , B22F5/00 , B24D18/00 , B24D99/00 , C04B35/63 , C22C26/00 , C04B35/528 , C04B35/532 , C04B35/645 , E21B10/573
摘要： A polycrystalline compact includes a plurality of diamond grains of micron size, submicron size, or both, and a plurality of diamond nanoparticles disposed in interstitial spaces between the plurality of diamond grains. A method of forming a polycrystalline compact includes combining a plurality of micron and/or submicron-sized diamond grains and a plurality of diamond nanoparticles to form a mixture and sintering the mixture in a presence of a carburized binder to form a polycrystalline hard material having a plurality of inter-bonded diamond grains and diamond nanoparticles. Cutting elements including a polycrystalline compact and earth-boring tools bearing such compacts are also disclosed.
-
公开(公告)号：US10174562B2
公开(公告)日：2019-01-08
申请号：US15235588
申请日：2016-08-12
IPC分类号： B24D3/00 , B24D18/00 , E21B10/573 , B24D99/00 , C04B35/52 , C22C26/00 , C04B35/58 , C04B35/5831 , C04B35/63 , C04B35/638 , C04B35/645 , C04B37/00 , F16C33/04 , B24D3/14 , B22F7/08 , C04B35/583 , C04B37/02 , E21B10/50 , E21B10/55 , E21B10/567 , B24D11/00 , C09K3/14 , B24D3/02 , B22F5/00
摘要： Methods of forming a polycrystalline table may involve disposing a plurality of particles comprising a superabrasive material, a substrate comprising a hard material, and a catalyst material in a mold. The plurality of particles may be partially sintered in the presence of the catalyst material to form a brown polycrystalline table having a first permeability attached to an end of the substrate. The substrate may be removed from the brown polycrystalline table and catalyst material may be removed from the brown polycrystalline table. The brown polycrystalline table may then be fully sintered to form a polycrystalline table having a reduced, second permeability. Intermediate structures formed during a process of attaching a polycrystalline table to a substrate may include a substantially fully leached brown polycrystalline table. The substantially fully leached brown polycrystalline table may include a plurality of interbonded grains of a superabrasive material.
-
公开(公告)号：US10167674B2
公开(公告)日：2019-01-01
申请号：US13782341
申请日：2013-03-01
IPC分类号： E21B10/567 , B24D18/00 , B24D99/00 , C04B35/532 , C04B35/622 , C04B35/626 , C04B35/628 , C04B35/645 , B01J3/06 , C01B32/25
摘要： Method of fabricating polycrystalline diamond include functionalizing surfaces of diamond nanoparticles with fluorine, combining the functionalized diamond nanoparticles with a polymer to form a mixture, and subjecting the mixture to high pressure and high temperature (HPHT) conditions to form inter-granular bonds between the diamond nanoparticles. A green body includes a plurality of diamond nanoparticles functionalized with fluorine, and a polymer material interspersed with the plurality of diamond nanoparticles. A method of forming cutting element includes functionalizing surfaces of diamond nanoparticles with fluorine, and combining the functionalized diamond nanoparticles with a polymer to form a mixture. The mixture is formed over a body, and the mixture and the body are subjected to HPHT conditions to form inter-granular bonds between the diamond nanoparticles and secure the bonded diamond nanoparticles to the body.
-
公开(公告)号：US09962669B2
公开(公告)日：2018-05-08
申请号：US15335955
申请日：2016-10-27
CPC分类号： B01J3/062 , B01J2203/0605 , B01J2203/062 , B01J2203/0625 , B01J2203/0655 , B01J2203/0685 , B24D18/0009 , B24D99/00 , E21B10/54 , E21B10/56 , E21B10/567
摘要： Methods of forming polycrystalline diamond include encapsulating diamond particles and a hydrocarbon substance in a canister, and subjecting the encapsulated diamond particles and hydrocarbon substance to a pressure and a temperature sufficient to form inter-granular bonds between the diamond particles. Cutting elements for use in an earth-boring tool include a polycrystalline diamond material formed by such processes. Earth-boring tools include such cutting elements.
-
公开(公告)号：US09790746B2
公开(公告)日：2017-10-17
申请号：US14156655
申请日：2014-01-16
CPC分类号： E21B10/567 , B22F3/14 , B24D3/10 , B24D99/005 , C22C19/007 , C22C19/03 , C22C26/00
摘要： Polycrystalline compacts include a polycrystalline material comprising a plurality of inter-bonded grains of hard material, and a metallic material disposed in interstitial spaces between the inter-bonded grains of hard material. At least a portion of the metallic material comprises a metal alloy that includes two or more elements. A first element of the two or more elements comprises at least one of cobalt, iron, and nickel. A second element of the two or more elements comprises at least one of dysprosium, yttrium, terbium, gadolinium, germanium, samarium, neodymium, and praseodymium. The metal alloys may comprise eutectic or near-eutectic compositions, and may have relatively low melting points. Cutting elements and earth-boring tools include such polycrystalline compacts. Methods include the formation of such polycrystalline compacts, cutting elements, and earth-boring tools.
-
公开(公告)号：US20170292376A1
公开(公告)日：2017-10-12
申请号：US15630290
申请日：2017-06-22
IPC分类号： E21B49/08 , E21B10/567 , E21B49/00 , E21B10/573 , E21B47/00 , E21B47/06 , E21B47/12 , E21B10/42 , E21B47/024
CPC分类号： E21B49/08 , E21B10/08 , E21B10/42 , E21B10/567 , E21B10/5735 , E21B47/00 , E21B47/0002 , E21B47/011 , E21B47/024 , E21B47/06 , E21B47/065 , E21B47/122 , E21B49/00 , E21B2049/085 , Y10T29/49002
摘要： A Polycrystalline Diamond Compact (PDC) cutter for a rotary drill bit is provided with an integrated sensor and circuitry for making measurements of a property of a fluid in the borehole and/or an operating condition of the drill bit. A method of manufacture of the PDC cutter and the rotary drill bit is discussed.
-
9.发明申请公开(公告)号：US20170247949A1
公开(公告)日：2017-08-31
申请号：US15594946
申请日：2017-05-15
IPC分类号： E21B10/22 , F16C33/04 , F16C33/12 , B24D3/06 , C22C1/05 , C22C26/00 , C22C29/06 , C22C29/14 , F16C17/00 , B24D18/00
CPC分类号： E21B10/22 , B22F2999/00 , B24D3/06 , B24D18/0009 , B24D99/005 , C22C1/051 , C22C26/00 , C22C29/06 , C22C29/14 , C22C2204/00 , E21B10/573 , E21B10/5735 , F16C17/00 , F16C17/02 , F16C17/04 , F16C17/12 , F16C33/043 , F16C33/121 , F16C33/26 , F16C2352/00 , Y10T428/24521 , B22F3/14
摘要： Bearings for earth-boring tools may include a first bearing member including a first bearing pad having a first contact surface and a second bearing member including a second bearing pad having a second contact surface in sliding contact with at least a portion of the first contact surface. At least one of the first bearing member and the second bearing member may include a polycrystalline table attached to a portion of a first substrate on which the polycrystalline table was formed. Another substrate may be attached to the portion of the first substrate, the portion of the first substrate interposed between the polycrystalline table and the other substrate. The portion of the first substrate may include a first volume percentage of the first matrix material and the other substrate may include a second, different volume percentage of the second matrix material
-
公开(公告)号：US09701877B2
公开(公告)日：2017-07-11
申请号：US14599213
申请日：2015-01-16
IPC分类号： B24D3/00 , B24D3/02 , B24D11/00 , B24D18/00 , C09K3/14 , B01J3/06 , B24D99/00 , B82Y30/00 , C01B31/06
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.
-
-
-
-
-
-
-
-
-
搜索结果
141 条记录 (耗时 0.029 秒)
