公开(公告)号：US5011514A

公开(公告)日：1991-04-30

申请号：US378123

申请日：1989-07-11

Applicant: Hyun S. Cho ,  Chien-Min Sung ,  Leo Merrill ,  Sy-Hwa Chen ,  Frank Csillag

Inventor： Hyun S. Cho ,  Chien-Min Sung ,  Leo Merrill ,  Sy-Hwa Chen ,  Frank Csillag

IPC: B23P15/28 ,  B01J3/06 ,  B24D3/08 ,  C09K3/14 ,  C22C1/05 ,  C22C26/00 ,  C22C29/00 ,  C22C29/16 ,  E21B10/56 ,  E21B10/567

CPC classification number: E21B10/567 ,  B01J3/062 ,  B24D3/08 ,  C09K3/1445 ,  C22C26/00 ,  E21B10/5673 ,  F16C33/043 ,  B01J2203/062 ,  B01J2203/0645 ,  B01J2203/0655 ,  B01J2203/066 ,  B01J2203/0685 ,  B22F2999/00

Abstract: Superabrasive cutting elements, backed compacts and methods for their manufacture are disclosed wherein metal coated superabrasive particles are cemented under HPHT conditions. The superabrasives bond to the metal of the coating and the metal coatings of adjacent particles bond to each other forming a matrix. A binding aid with thermal expansion characteristics close to that of the superabrasive particle can be infiltrated through or otherwise mixed with the particles to assist in the bonding between the metal coatings and to fill in voids. Catalyst and non-catalyst binding aids can also be used. Uncoated, smaller superabrasive particles can be interstitially dispersed among the coated particles to increase the superabrasive concentration and can self bond to form a cemented/sintered structure. Tungsten is a preferred metal coating and silicon is a preferred binding/sintering aid. The superabrasive can be diamond, cubic boron nitride, boron doped diamond or crushed sintered polycrystalline aggregates. The free-standing cutting element can have a brazeable layer and the compact can be backed with, for example, cemented tungsten carbide. Free-standing cutting elements can be thermally stable up to 1,200.degree. C. Backed compacts can be thermally stable up to 1,100.degree. C.

Abstract translation: 公开了热稳定的超研磨产品，特别是超研磨切割元件，以及用于其制造的背衬压块及其方法，其中金属涂覆的超级磨料颗粒在HPHT条件下胶合。 超级磨料结合到涂层的金属上，相邻颗粒的金属涂层彼此结合形成基体。 具有接近超级磨料颗粒的热膨胀特性的粘合助剂可以渗入或与颗粒混合，以有助于金属涂层之间的粘合并填充空隙。 还可以使用催化剂和非催化剂结合助剂。 未涂覆的较小的超级磨料颗粒可以间隙地分散在涂覆的颗粒中以增加超研磨剂浓度并且可以自粘以形成胶结/烧结结构。 钨是优选的金属涂层，硅是优选的结合/烧结助剂。 超级磨料可以是金刚石，立方氮化硼，硼掺杂金刚石或粉碎烧结多晶聚集体。 独立的切割元件可以具有可钎焊层，并且该压块可以例如用硬质合金碳化钨来支撑。 独立的切割元件可以在1200℃下热稳定。支撑压块可在1100℃下热稳定。

公开(公告)号：US4525179A

公开(公告)日：1985-06-25

申请号：US542081

申请日：1983-10-14

Applicant: Paul D. Gigl

Inventor： Paul D. Gigl

IPC: B01J3/06 ,  C04B35/5831 ,  E21B10/56 ,  E21B10/567 ,  B24D3/02

CPC classification number: E21B10/5676 ,  B01J3/062 ,  C04B35/5831 ,  B01J2203/062 ,  B01J2203/0645 ,  B01J2203/0655 ,  B01J2203/066 ,  B01J2203/0685

Abstract: The high pressure/high temperature (HP/HT) process for making diamond or CBN compacts has been modified by placing partitions within the crystal mass before HP/HT processing. With reference to FIG. 3, within the shield metal sleeve 11 and shield metal cup 14 are placed pliable metal shapes 20 in a honeycomb pattern. The abrasive crystals within the tubes 18 and outside the tubes 26 is sintered, and a compact containing the tubes embedded therein results. This compact can be acid leached to give a plurality of small compacts which need little if any additional shaping. The partitions can also be left intact as chip arresters.

Abstract translation: 通过在HP / HT处理之前将分区放置在晶体质量内，已经修改了用于制造金刚石或CBN压块的高压/高温（HP / HT）工艺。 参考图1。 如图3所示，在屏蔽金属套筒11和屏蔽金属杯14内设有柔软的金属形状20，呈蜂窝状。 管18内和管26外的磨料晶体被烧结，并且包含嵌入其中的管的压实结果。 这种压块可以被酸浸，以产生多个需要很少的任何附加成形的小型压块。 隔板也可以作为避雷器保持不动。

公开(公告)号：US4505746A

公开(公告)日：1985-03-19

申请号：US414821

申请日：1982-09-03

Applicant: Tetsuo Nakai ,  Shuji Yazu

Inventor： Tetsuo Nakai ,  Shuji Yazu

IPC: B01J3/06 ,  B24D3/06 ,  B24D18/00 ,  C22C26/00 ,  B22F7/02 ,  B24D3/02

CPC classification number: C22C26/00 ,  B01J3/062 ,  B24D3/06 ,  B01J2203/062 ,  B01J2203/0645 ,  B01J2203/0655 ,  B01J2203/066 ,  B01J2203/0685 ,  C22C2026/005 ,  Y10S76/12

Abstract: An improved diamond compact of the present invention comprises 20 to 85% by volume of diamond grains with a grain size of at least 3 .mu.m and the balance of a binder consisting of 20 to 95% by volume of ultra-fine diamond grains with a grain size of at most 1 .mu.m, at least one member with a grain size of at most 1 .mu.m, selected from the group consisting of carbides, carbonitrides, nitrides, borides of Group 4a, 5a and 6a elements of Periodic Table, solid solutions thereof and mixed crystals thereof and at least one member selected from the group consisting of iron group metals.

Abstract translation: 本发明的改进的金刚石复合体包含20至85体积％的晶粒尺寸至少为3微米的金刚石颗粒，余量为20至95体积％的超细金刚石颗粒，其中具有 晶粒尺寸至多为1μm，至少一种粒径至多为1μm的成员选自碳化物，碳氮化物，氮化物，元素周期表4a，5a和6a元素的硼化物，固体 溶液及其混晶，以及选自铁族金属中的至少一种。

公开(公告)号：US4311490A

公开(公告)日：1982-01-19

申请号：US219289

申请日：1980-12-22

Applicant: Harold P. Bovenkerk ,  Gordon M. Kibler

Inventor： Harold P. Bovenkerk ,  Gordon M. Kibler

IPC: C04B35/52 ,  B01J3/06 ,  B22F7/06 ,  B24D3/06 ,  C04B35/583 ,  C22B26/00 ,  C22C26/00 ,  C30B29/38 ,  C09C1/68

CPC classification number: C22B26/00 ,  B01J3/062 ,  B22F7/06 ,  B24D3/06 ,  C22C26/00 ,  B01J2203/062 ,  B01J2203/0645 ,  B01J2203/0655 ,  B01J2203/066 ,  B01J2203/0685 ,  B22F2998/00 ,  B22F2999/00

Abstract: Disclosed is an improved process for preparing a composite compact wherein a mass of abrasive crystals, a mass of metal carbide, and a bonding medium are subjected to a high-temperature/high pressure process for providing a composite compact. The sintered carbide mass supports the mass of abrasive crystals and bonding or catalyst metal, and the abrasive crystal grains are directly bonded to adjacent crystal grains in the mass thereof. Such improved process comprises disposing the mass of abrasive crystals in layers wherein the coarsest layer is closest to the carbide mass and is composed of crystals having a largest dimension of between about 75 and 500 microns and the finest layer is disposed farthest away in the carbide mass and is composed of crystals having a largest dimension of less than 10 microns. The abrasive crystals are selected from the group consisting of diamond and cubic boron nitride and preferably are diamond; the metal carbide preferably is tungsten carbide; and the bonding metal preferably is cobalt. The resulting improved composite compact also is disclosed.

Abstract translation: 公开了一种改进的制备复合压块的方法，其中磨料晶体的质量，金属碳化物的质量和粘合介质经受用于提供复合压块的高温/高压工艺。 烧结碳化物块支撑研磨晶体和结合或催化剂金属的质量，并且研磨晶粒直接与其质量的相邻晶粒结合。 这种改进的方法包括将研磨晶体的质量布置在其中最粗糙层最接近碳化物块的层中，并且由最大尺寸在约75和500微米之间的晶体组成，最细层设置在最接近碳化物质量 并且由最小尺寸小于10微米的晶体组成。 研磨晶体选自金刚石和立方氮化硼，优选为金刚石; 金属碳化物优选为碳化钨; 并且键合金属优选为钴。 所得到的改进的复合压块也被公开。

公开(公告)号：US4288248A

公开(公告)日：1981-09-08

申请号：US960054

申请日：1978-11-13

Applicant: Harold P. Bovenkerk ,  Paul D. Gigl

Inventor： Harold P. Bovenkerk ,  Paul D. Gigl

IPC: B01J3/06 ,  B24B17/00 ,  B24D3/00 ,  B24D3/10 ,  C22C26/00 ,  B22F3/00 ,  B22F3/24

CPC classification number: B24D18/00 ,  B01J3/062 ,  B24D3/008 ,  B24D3/10 ,  C22C26/00 ,  B01J2203/062 ,  B01J2203/0645 ,  B01J2203/0655 ,  B01J2203/066 ,  B01J2203/0685

Abstract: In one embodiment, a compact for tools, such as cutting, drilling and shaping tools, consists essentially of self-bonded abrasive particles. The bonded particles define a substantially continuous interconnected network of pores, dispersed throughout the compact. The method for making such a compact comprises the steps of bonding a mass of abrasive particles, aided by a sintering aid material, under high temperatures and pressures (HP/HT) to form an abrasive body comprised of said particles in a self-bonded form and said material infiltrated throughout the body. The body is then treated to remove substantially all infiltrated material, thereby to produce a compact consisting essentially of the self-bonded abrasive particles. In another embodiment, a composite compact which is made in a similar manner to the first embodiment consists essentially of a layer of self-bonded abrasive particle and a substrate layer (preferably of cemented carbide) bonded to the abrasive particle layer.

Abstract translation: 在一个实施例中，用于诸如切割，钻孔和成形工具的工具的紧凑件基本上由自粘合磨料颗粒组成。 键合的颗粒限定分散在整个压块中的基本上连续的互连的孔网。 制造这种压块的方法包括以下步骤：在高温和高压（HP / HT）下，通过烧结助剂材料辅助的大量研磨颗粒结合，以形成由自粘结形式的所述颗粒组成的研磨体 并说物质渗入整个身体。 然后处理本体以基本上除去所有渗透的材料，从而产生基本上由自粘合磨料颗粒组成的压块。 在另一个实施例中，以与第一实施例相似的方式制成的复合压块基本上由结合到磨料颗粒层的自粘合研磨颗粒和基底层（优选地由硬质合金）组成。

公开(公告)号：US4287164A

公开(公告)日：1981-09-01

申请号：US84162

申请日：1979-10-12

Applicant: Tadashi Endo ,  Osamu Fukunaga ,  Minoru Iwata

Inventor： Tadashi Endo ,  Osamu Fukunaga ,  Minoru Iwata

IPC: B01J3/06 ,  C01B35/14 ,  C04B35/5831 ,  C01B21/064

CPC classification number: B01J3/062 ,  C01B35/146 ,  C04B35/5831 ,  B01J2203/0645 ,  B01J2203/066 ,  B01J2203/068

Abstract: A process for producing cubic system boron nitride comprises contacting calcium or strontium boron nitride with hexagonal system boron nitride and heating at higher than 1,450.degree. C. under the thermodynamically stable pressure for cubic system boron nitride.

Abstract translation: 用于生产立方体系氮化硼的方法包括使六方晶系氮化硼的钙或锶与六方晶系氮化硼接触，并在立方晶系氮化硼的热力学稳定压力下加热高于1,450℃。

公开(公告)号：US3982911A

公开(公告)日：1976-09-28

申请号：US515867

申请日：1974-10-18

Applicant: Minyoung Lee

Inventor： Minyoung Lee

IPC: B01J3/06 ,  B22F3/26 ,  B22F7/06 ,  B23P15/28 ,  C22C1/05 ,  B24D3/06 ,  B24D3/14 ,  C04B31/16

CPC classification number: B22F3/26 ,  B01J3/062 ,  B22F7/06 ,  B23P15/28 ,  C22C1/051 ,  B01J2203/0645 ,  B01J2203/066 ,  B01J2203/0685

Abstract: Cubic boron nitride (CBN) crystals of graded particle size are chemically cleaned and disposed in a protective metal cup together with a mass of substrate source material and a concentration of metal for providing an alloy for infusing and wetting the walls of capillary-size voids. The CBN content is increased in density to greater than 70% by volume and placed within a semi-isostatic system of finely-divided powder. Pressure in the range of from about 20,000 to about 100,000 psi is applied semi-isostatically to the system and thereby to the metal cup and its contents. Heat and pressure are then simultaneously applied to the semi-isostatic system. Liquefied infusing and wetting alloy enters the interstices between the CBN crystals to bond them together. The entire system is cooled and the strong composite body of metal-bonded CBN directly bonded to a substrate is recovered therefrom.

Abstract translation: 化学清洗立方氮化硼（CBN）晶体，并将其与大量衬底源材料和金属浓度一起放置在保护性金属杯中，以提供合金，用于注入和润湿毛细管尺寸空隙的壁。 CBN含量以密度增加至大于70体积％，并置于细分粉末的半等静压系统中。 将半等压力从约20,000至约100,000psi的压力施加到系统上，从而施加到金属杯及其内容物上。 然后将热和压力同时施加到半等静压系统。 液化浸润和润湿合金进入CBN晶体之间的间隙，将它们结合在一起。 整个系统被冷却，从基材中回收直接粘合到基材上的金属粘合CBN的强复合体。

公开(公告)号：US3852078A

公开(公告)日：1974-12-03

申请号：US21156471

申请日：1971-12-23

Applicant: WAKATSUKI M ,  ICHINOSE K ,  AOKI T ,  MORI R

Inventor： ICHINOSE K ,  MORI R ,  AOKI T ,  WAKATSUKI M

IPC: B01J3/06 ,  C04B35/5831 ,  C04B35/52

CPC classification number: C04B35/5831 ,  B01J3/062 ,  B01J2203/062 ,  B01J2203/0645 ,  B01J2203/0655 ,  B01J2203/066 ,  B01J2203/067 ,  B01J2203/0685

Abstract: This invention gives bonded or compact bodies of polycrystalline cubic system boron nitride and substantially uniform composites of polycrystalline cubic system boron nitride and other hard materials, for example, metal borides, such as titanium boride and zirconium boride, covalent or metallic cabides, such as boron carbide, silicon carbide, titanium, carbide, tungsten carbide and chromium carbide, metal nitrides, such as titanium nitride, tantalum nitride, silicon nitride and aluminum nitride, metal oxides, such as alumina and silica, complex oxide such as garnet and agate, and diamond. Further, this invention provides a process of obtaining the bonded body of these materials which comprises subjecting hexagonal system boron nitride powder, or a mixture of hexagonal system boron nitride powder and cubic system boron nitride crystal powder or powders of the above-mentioned hard materials to high temperatures and high pressures.

Abstract translation: 本发明提供了多晶立方氮化硼和多晶立方氮化硼和其它硬质材料的基本上均匀的复合材料的结合体或致密体，例如金属硼化物，例如硼化钛和硼化锆，共价或金属催化剂，例如硼 碳化物，碳化硅，钛，碳化物，碳化钨和碳化铬，金属氮化物，例如氮化钛，氮化钽，氮化硅和氮化铝，金属氧化物如氧化铝和二氧化硅，复合氧化物如石榴石和玛瑙，以及 钻石。 此外，本发明提供了获得这些材料的接合体的方法，其包括将六方晶系氮化硼粉末或六方晶系氮化硼粉末和立方体系氮化硼晶体粉末或上述硬质材料的粉末的混合物 高温高压。

公开(公告)号：US20170095905A1

公开(公告)日：2017-04-06

申请号：US15379878

申请日：2016-12-15

Applicant: Baker Hughes Incorporated

Inventor： Danny E. Scott ,  Anthony A. DiGiovanni

IPC: B24D18/00 ,  B01J3/06 ,  B24D3/14

CPC classification number: B24D18/0009 ,  B01J3/06 ,  B01J2203/062 ,  B01J2203/0645 ,  B24D3/06 ,  B24D3/14 ,  B24D99/005 ,  E21B10/55

Abstract: Methods for forming cutting elements, methods for forming polycrystalline compacts, and related polycrystalline compacts are disclosed. Grains of a hard material are subjected to a high-pressure, high-temperature process to form a polycrystalline compact. Inclusion of at least one relatively quick spike in system pressure or temperature during an otherwise plateaued temperature or pressure stage accommodates formation of inter-granular bonds between the grains. The brevity of the peak stage may avoid undesirable grain growth. Embodiments of the methods may also include at least one of oscillating at least one system condition (e.g., pressure, temperature) and subjecting the grains to ultrasonic or mechanical vibrations. A resulting polycrystalline compact may include a high density of inter-granularly bonded hard material with a minimized amount of catalyst material, and may provide improved thermal stability, wear resistance, toughness, and behavior during use of a cutting element incorporating the polycrystalline compact.

公开(公告)号：US09422161B2

公开(公告)日：2016-08-23

申请号：US14407017

申请日：2013-08-02

Applicant: YANSHAN UNIVERSITY

Inventor： Yongjun Tian ,  Dongli Yu ,  Bo Xu ,  Julong He ,  Zhongyuan Liu ,  Wentao Hu ,  Kun Luo ,  Yufei Gao ,  Zhisheng Zhao

IPC: B01J3/06 ,  B82Y30/00 ,  C01B21/064 ,  C04B35/645 ,  C04B35/5831

CPC classification number: C01B21/0648 ,  B01J3/062 ,  B01J2203/0645 ,  B01J2203/066 ,  B82Y30/00 ,  C01P2002/60 ,  C01P2002/72 ,  C01P2004/02 ,  C01P2004/04 ,  C01P2004/64 ,  C04B35/5831 ,  C04B35/645 ,  C04B2235/52 ,  C04B2235/5409 ,  C04B2235/5454 ,  C04B2235/723 ,  C04B2235/781 ,  C04B2235/96

Abstract: The invention relates to an ultrahard nanotwinned boron nitride bulk material and synthetic method thereof. Particularly, the invention discloses a nanocrystalline cubic boron nitride bulk material containing high density of twins and synthetic method thereof, in which a nanotwinned boron nitride bulk are synthesized from nanospherical boron nitride particles (preferably with a size of 5-70 nm) with onion-like structure as raw materials by using high temperature and high pressure synthesis. As compared with the prior arts, the nanotwinned boron nitride bulk obtained according to the invention has a much higher hardness than that of a normal cubic boron nitride single crystal. The nanotwinned boron nitride bulk has great prospects in applications, such as precision and ultra-precision machining, abrasives, drawing dies, and special optics as well as other fields.

Abstract translation: 本发明涉及一种超硬纳米结晶氮化硼体材料及其合成方法。 特别地，本发明公开了一种含有高密度双胞胎的纳米晶体立方氮化硼体材料及其合成方法，其中由纳米球形氮化硼体系由纳米球形氮化硼颗粒（优选尺寸为5-70nm）与洋葱 - 通过使用高温高压合成作为原料。 与现有技术相比，根据本发明获得的纳米结晶氮化硼体积具有比正常立方氮化硼单晶高得多的硬度。 纳米结晶氮化硼体积在精密和超精密加工，磨料，拉丝模，特殊光学以及其他领域的应用前景广阔。