公开(公告)号：US4950625A

公开(公告)日：1990-08-21

申请号：US364693

申请日：1989-06-08

Applicant: Takeru Nakashima ,  Shuichi Satoh ,  Kazuwo Tsuji

Inventor： Takeru Nakashima ,  Shuichi Satoh ,  Kazuwo Tsuji

IPC: C30B33/04 ,  B01J3/06 ,  C30B29/04 ,  C30B33/00 ,  H01S3/16

CPC classification number: H01S3/1681 ,  B01J3/062 ,  C30B29/04 ,  C30B33/00 ,  B01J2203/062 ,  B01J2203/0655 ,  B01J2203/069

Abstract: A method of manufacturing a diamond laser crystal having an excellent laser efficiency is performed by first, preparing a synthetic type Ib diamond containing at least 60 volume percent of a (111) plane growth sector (43) is prepared. This synthetic diamond is then thermally treated under high temperature/high pressure, so that type Ib nitrogen contained in the synthetic diamond is converted to type IaA nitrogen. Thereafter an electron beam is applied to the synthetic diamond in order to generate vacancies in the synthetic diamond. Finally annealing is performed on the synthetic diamond to form H3 centers by coupling the type IaA nitrogen atoms contained in the synthetic diamond, with the vacancies. According to this method, the H3 centers can be formed in the synthetic type Ib diamond at high concentration, while formation of NV centers which become an obstacle to laser action, can be suppressed.

公开(公告)号：US4942750A

公开(公告)日：1990-07-24

申请号：US338222

申请日：1989-01-23

Applicant: Robert M. Conaway

Inventor： Robert M. Conaway

IPC: B01J3/06

CPC classification number: B01J3/06 ,  Y10T29/49805

Abstract: Apparatus and methods are disclosed for the rapid generation of high hydrostatic pressures and the concurrent delivery of said pressures to a workpiece. The apparatus and methods comprise the rapid thermal expansion and vaporization of a volatile fluid. The volatile fluid is typically liquid argon and heated typically by means of a controllable electric heater, delivered to the workpiece typically by means of a pressure-rupturable membrane. The disclosed apparatus and methods permit the application of high hydrostatic pressures to commercial-scale workpieces, in an economic manner and with reduced cycle times.

Abstract translation: 公开了用于快速产生高静水压力和将所述压力同时传送到工件的装置和方法。 该装置和方法包括挥发性流体的快速热膨胀和蒸发。 挥发性流体通常是液态氩气，通常通过可控制的电加热器加热，通常通过压力破裂膜输送到工件。 所公开的装置和方法允许以经济的方式和减少的循环时间对商业尺寸的工件施加高静水压力。

公开(公告)号：US4907377A

公开(公告)日：1990-03-13

申请号：US207685

申请日：1988-06-16

Applicant: Frank J. Csillag ,  Harold P. Bovenkerk

Inventor： Frank J. Csillag ,  Harold P. Bovenkerk

IPC: B01J3/06 ,  B22F7/06 ,  B24D3/06

CPC classification number: B22F7/06 ,  B01J3/062 ,  B24D3/06 ,  B01J2203/062 ,  B01J2203/0655 ,  B01J2203/0685

Abstract: Disclosed is an improved method for making a polycrystalline diamond compact comprising subjecting a mass of diamond particles, which mass is adjacent a cemented metal carbide mass containing a catalyst, to a high pressure/high temperature process which results in a compact characterized by diamond-to-diamond bonding. The improvement in such process comprises placing a second catalyst source adjacent the diamond mass, said second catalyst having a melting point which is lower than the melting point of the catalyst of the carbide; and subjecting said mass to high pressure/high temperature sintering at a temperature above the melting point of the second catalyst, but below the melting point of the carbide catalyst, for causing said second catalyst to selectively diffuse through said mass for forming said polycrystalline diamond compact. The preferred catalyst is a mixture of cobalt and boron.

Abstract translation: 公开了一种用于制造多晶金刚石压块的改进方法，其包括将质量相邻的含有催化剂的粘结金属碳化物块的金刚石颗粒质量接受到高压/高温工艺，其导致紧密的特征，其特征在于金刚石 - - 金刚石键合。 该方法的改进包括将第二催化剂源放置在金刚石块附近，所述第二催化剂的熔点低于碳化物的催化剂的熔点; 并且在高于第二催化剂的熔点但低于碳化物催化剂的熔点的温度下对所述物质进行高压/高温烧结，以使所述第二催化剂选择性地扩散通过所述物质以形成所述多晶金刚石致密体 。 优选的催化剂是钴和硼的混合物。

公开(公告)号：US4789385A

公开(公告)日：1988-12-06

申请号：US47531

申请日：1987-05-04

Applicant: Henry B. Dyer ,  Cornelius Phaal ,  Richard P. Brunand

Inventor： Henry B. Dyer ,  Cornelius Phaal ,  Richard P. Brunand

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

CPC classification number: C04B35/52 ,  B01J3/062 ,  B22F7/06 ,  B24D3/06 ,  C04B35/6316 ,  C04B35/645 ,  C04B37/021 ,  C04B37/026 ,  C22C26/00 ,  B01J2203/062 ,  B01J2203/0655 ,  B01J2203/0685 ,  C04B2235/3826 ,  C04B2235/427 ,  C04B2235/428 ,  C04B2235/5445 ,  C04B2235/616 ,  C04B2235/656 ,  C04B2235/6567 ,  C04B2235/80 ,  C04B2237/083 ,  C04B2237/09 ,  C04B2237/363 ,  C04B2237/401 ,  C04B2237/61 ,  C04B2237/64

Abstract: The invention provides a composite diamond abrasive compact comprising a thermally stable diamond compact directly bonded to a cemented carbide substrate. The thermally stable diamond compact comprises bonded diamond forming a coherent, skeletal mass and a second phase which preferably consists of silicon and/or silicon carbide. A method of producing the composite diamond abrasive compact under controlled elevated temperature and pressure conditions is also provided.

Abstract translation: 本发明提供了一种复合金刚石磨料成型体，其包含直接结合到硬质合金基底的热稳定金刚石致密组合物。 热稳定的金刚石致密体包括形成粘结的骨架物质的粘结金刚石和优选由硅和/或碳化硅组成的第二相。 还提供了在控制的高温和压力条件下生产复合金刚石磨料压块的方法。

公开(公告)号：US4740147A

公开(公告)日：1988-04-26

申请号：US839032

申请日：1986-03-12

Applicant: Akira Asari ,  Shiro Sakamoto

Inventor： Akira Asari ,  Shiro Sakamoto

IPC: B01J3/06 ,  B30B7/02 ,  B30B11/00 ,  B29C33/02

CPC classification number: B30B11/007 ,  B01J3/065 ,  B30B11/004 ,  B30B7/02 ,  Y10S425/013

Abstract: An ultra-high pressure solid pressing machine of the type having a pair of upper and lower platens mounted in a press frame and movable relatively toward and away from each other, a mold unit interposed between the upper and lower platens and including at least a cylindrical cavity for receiving raw material therein, upper and lower conical surfaces formed around the upper and lower ends of the cylindrical cavity, and upper and lower anvils fitted respectively in the upper and lower conical surfaces through a gasket to compress the raw material in the cylindrical cavity under an ultra-high pressure, characterized in that the pressing machine includes a plurality of mold units stacked one on another between the upper and lower platens through insulators with axes of cylindrical cavities of the respective mold units being in vertical alignment with each other and a current supply control separately connected to the mold units.

Abstract translation: 一种超高压固体压制机，其具有安装在压机框架中并相对于彼此相对移动的一对上压板和下压板;插入在上压板和下压板之间的模具单元，并且至少包括圆柱形 用于在其中容纳原料的空腔，围绕圆柱形腔的上端和下端形成的上和下锥形表面，以及分别通过垫圈装配在上锥形表面和下圆锥形表面中的上砧和下砧，以压缩圆柱形腔中的原材料 在超高压下，其特征在于，所述压制机包括通过绝缘体在所述上压板和下压板之间彼此堆叠的多个模具单元，所述模具单元的圆柱形腔的轴线彼此垂直对准，并且 电源供应控制单独连接到模具单元。

公开(公告)号：US4643741A

公开(公告)日：1987-02-17

申请号：US681549

申请日：1984-12-14

Applicant: Hongchang Yu ,  Zhen Yang ,  Chaodong Wang ,  Zhongqing Zai

Inventor： Hongchang Yu ,  Zhen Yang ,  Chaodong Wang ,  Zhongqing Zai

IPC: B01J3/06 ,  B24D3/06 ,  B24D18/00 ,  B30B11/00 ,  B30B15/34 ,  B24B1/00

CPC classification number: C04B35/52 ,  B01J3/062 ,  B22F3/15 ,  B24D18/0009 ,  B24D3/06 ,  B30B11/004 ,  B30B11/007 ,  B30B15/34 ,  C04B35/6316 ,  C04B35/645 ,  C22C1/101 ,  C22C26/00 ,  B01J2203/062 ,  B01J2203/0655 ,  B01J2203/0685 ,  C04B2235/3821 ,  C04B2235/3826 ,  C04B2235/3834 ,  C04B2235/40 ,  C04B2235/404 ,  C04B2235/405 ,  C04B2235/421 ,  C04B2235/427 ,  C04B2235/428 ,  C04B2235/5436 ,  C04B2235/5472 ,  C04B2235/6567 ,  C04B2235/80 ,  C04B2235/96

Abstract: A thermostable polycrystalline diamond body is produced by pre-treating the diamond crystals with molten base or salt, mixing the pre-treated diamond crystals with silicon powder or a blend of silicon and one or more substances, subjecting the mixture to a combination of high-pressure and high-temperature and maintaining the pressure and temperature for a period of time. The thermostable polycrystalline diamond body is characterized in having diamond crystals uniformly distributed in the body. The diamond crystals are covered by .beta.-silicon carbide and that the diamond crystals together with .beta.-silicon carbide form an uninterrupted framework throughout the entire body, the interstices of which are filled with elemental silicon or silicon-containing refractory phases. A polygonal graphite mold having walls of equal thickness useful in the production of said thermostable polycrystalline diamond body is also provided.

Abstract translation: 通过用熔融的碱或盐对金刚石晶体进行预处理，将预处理的金刚石晶体与硅粉末或硅与一种或多种物质的混合物混合，使混合物与高分子材料结合， 压力和高温，并保持一段时间的压力和温度。 耐热多晶金刚石体的特征在于具有均匀分布在体内的金刚石晶体。 金刚石晶体被β-碳化硅覆盖，并且金刚石晶体与β-碳化硅一起形成整个整体的不间断框架，其间隙填充有元素硅或含硅难熔物相。 还提供了具有相当厚度壁的多边形石墨模具，其用于生产所述耐热多晶金刚石体。

公开(公告)号：US4610699A

公开(公告)日：1986-09-09

申请号：US688654

申请日：1985-01-03

Applicant: Shuji Yazu ,  Tsutomu Nakamura

Inventor： Shuji Yazu ,  Tsutomu Nakamura

IPC: B01J3/06 ,  B24D3/02

CPC classification number: B01J3/062 ,  B01J2203/062 ,  B01J2203/0655 ,  B01J2203/0685

Abstract: The present invention relates to a hard diamond sintered body for use in tools such as cutting tools, excavating tools and wire drawing dies and a method for producing the same. A sintered body obtained by sintering fine powders of diamond under a superhigh pressure has been already used in cutting tools, drill bits, wire drawing dies and the like of nonferrous metals and similars. However, they have said that such a diamond sintered body is inferior in heat-resistance. The present invention was achieved from the investigation aiming at the elimination of the above described defect of being inferior in heat-resistance of the conventional diamond sintered body. That is to say, according to the present invention, synthetic diamond powders containing a diamond synthesizing catalyst consisting of VIII group ferrous metals of the periodic table or Cr, Mn or Ta or alloys containing them used in the synthesis of diamond at a ratio of 0.01 to 10% by weight are exposed to a high temperature under the condition wherein diamond is unstable to graphitize a part or whole thereof and then the resulting raw materials are filled in a reaction vessel consisting of at least one kind of metals selected from a group consisting of Ti, Zr, Hf, V, Nb, Ta, Cr, Mo, W and the like and sintered at a superhigh pressure of 50 Kb or more and high temperature of 1,400.degree. C. or more, under which diamond is stable, to obtain a diamond sintered body. In short, the present invention relates to a hard diamond sintered body, characterized by comprising intermetallic compounds consisting of metals or alloys thereof contained in said diamond as a raw material and metals composing a reaction vessel at a ratio of 0.01 to 12% by weight, and a method for producing the same. A hard diamond sintered body obtained according to the present invention is superior in heat-resistance and abrasion-resistance, in particular heat-resistance, of which lowness has been a disadvantage of the conventional diamond sintered body, can be remarkably and successfully improved without reducing the strength.

公开(公告)号：US4582212A

公开(公告)日：1986-04-15

申请号：US578081

申请日：1984-02-08

Applicant: Akira Asari

Inventor： Akira Asari

IPC: F16J12/00 ,  B01J3/04 ,  B01J3/06 ,  B65D25/20

CPC classification number: B30B15/042 ,  B01J3/048 ,  B01J3/06 ,  B30B11/002

Abstract: A high pressure apparatus including a container internally provided with a cylindrical space capable of being closed, which container is constituted by a unitary member or an integral assembly of a plurality of members joined throughout its full axial length; a cotter member or a pin inserted radially in the container at one or both axial end portions of the container, which cotter member or pin serves as a structure for bearing an axial force induced by a high pressure load; and a plurality of flexible members wound round the outer periphery of the container axially of the latter to thereby exert a precompression on the entirety of the container.

Abstract translation: 一种高压装置，包括内部设置有能够关闭的圆筒形空间的容器，该容器由整体构件或在整个轴向长度上连接的多个构件的整体组件构成; 在容器的一个或两个轴向端部处径向插入容器中的开口部件或销，该开口部件或销用作用于承受由高压负荷引起的轴向力的结构; 以及多个柔性构件，其围绕容器的外周边卷绕在容器的外周上，从而在整个容器上施加预压缩。

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：US4518334A

公开(公告)日：1985-05-21

申请号：US644362

申请日：1984-08-27

Applicant: Hiroshi Ishizuka

Inventor： Hiroshi Ishizuka

IPC: B01J3/06

CPC classification number: B01J3/06 ,  B01J3/065 ,  Y10S425/026

Abstract: A high temperature high pressure apparatus which comprises: an annular die having a straight cylindrical bore and a substantially conical face in adjacency outwards with each end thereof, a pair of tapered punches which are in opposed and axial alignment with the die so that a conical face of each punch is substantially in parallel with that of the die, a pair of inner gaskets, each of which is made of fired refractory and is arranged in direct abutment on the conical face of the punch and the bore of the die, a pair of outer gaskets, which are made of material of intermediate hardness level and is arranged in adjacency outside the inner gasket, and a pair of stopper rings of readily deformable but highly tough material and arranged in adjacency outwards to the outer gaskets.

Abstract translation: 一种高温高压装置，包括：环形模具，其具有直的圆柱形孔和与其每端相邻的基本上圆锥形的表面，一对与模具相对且轴向对准的锥形冲头，使得圆锥形面 每个冲头基本上与模具平行，一对内垫圈，每个内垫圈由耐火材料制成，并且直接邻接在冲头的锥形表面和模具的孔上，一对 外部垫圈由中间硬度水平的材料制成，并且在内部垫圈外侧相邻地布置，以及一对容易变形但非常坚韧的材料的止动环，并且邻近地布置在外部垫圈上。