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101. 发明专利

JPH06114258A SUPERHIGH PRESSURE AND TEMPERATURE DEVICE 失效
公开(公告)号：JPH06114258A
公开(公告)日：1994-04-26
申请号：JP36096391
申请日：1991-12-14
申请人： ISHIZUKA HIROSHI
发明人： ISHIZUKA HIROSHI
IPC分类号： B01J3/06 , C01B31/06
摘要： PURPOSE:To economically execute synthetic reaction under a superhigh pressure by compensating Poison effect generated at a piston and a cylinder to make a device large sized and to improve the pressure resistance of the cylinder at the time of generating superhigh pressure by the movement of the piston. CONSTITUTION:In a piston-cylinder type superhigh pressure and temperature device, the high rigid material-made movable piston 25 is provided with a small- diameter and a large-diameter cylindrical part 27, 26 and the joining part and a high rigid material made cylinder 20 is provided with a large-diameter cylindrical part and a small-diameter cylindrical part and the joining part. And a pressure medium made of a plastic inorganic, organic or these composite body is packed in annular spaces surrounded with the small-diameter cylindrical part 27 of the piston 25 and the joining part and with the wall-surface of the large-diameter cylindrical part and the wall-surface of the small-diameter cylindrical part of the cylinder 20 and at the time of generating super high pressure by the movement of the movable piston 25, the Poison effect occurring at the piston 25 and the cylinder 20 is at least partially compensated.

102. 发明专利

JPH05332076A SOIL BORING DRILL BIT WITH IMPROVED ABRASION-RESISTANT INSERT 失效
公开(公告)号：JPH05332076A
公开(公告)日：1993-12-14
申请号：JP22043291
申请日：1991-08-30
申请人： BAKER HUGHES INC
发明人： DANII II SUKOTSUTO , SUTEIIBUN AARU JIYUABUITSUTSU
IPC分类号： C04B35/52 , B01J3/06 , C22C26/00 , E21B10/50 , E21B10/52 , E21B10/56
摘要： PURPOSE: To prolong the service life of the gauge surface of an earth boring drill bit or rotary cutter by using an improved insert containing dispersed diamond crystals formed through the in-situ conversion of graphite into diamond for the drill bit. CONSTITUTION: Diamond crystals formed through the in-situ conversion of graphite into diamond by using a tungsten carbide and diamond catalyst are used in an insert 41. The insert 41 is used for the formation of the member of a rotary rock bit 11. At the time of forming the diamond crystals, the grain sizes of the dispersed diamond crystals and tungsten carbide are adjusted to about 0.2-5 μand W, Ti, Zr, Hf, V, Nb, Ta, Cr, or Mo powder is used as metal carbide powder. In addition, a group III-VI metal or Ni, Co, Fe, Al, or B is used as the catalyst and the grain size of the graphite is adjusted to about 0.2-1,000 μ. Moreover, the mixing ratio of a binder in a particle compound is adjusted to about 5-50 vol.%. Furthermore, the sintering condition of a green material is set at lower than about 1,500 deg.C in temperature and lower than about 1,000 psi in pressure. A sintered material is treated in an HPHT device maintained at about 1,200 deg.C or higher in temperature and about 40 kilobar or higher in pressure.

103. 发明专利

JPH0585483B2 失效
公开(公告)号：JPH0585483B2
公开(公告)日：1993-12-07
申请号：JP51108589
申请日：1989-09-11
申请人： BIRUDENBURUKU IERUGU , BIRU GEORUKU
发明人： BIRUDENBURUKU IERUGU , BIRU GEORUKU
IPC分类号： B01J3/06 , C01B21/064 , C03C3/32 , C04B35/58 , C04B35/583

104. 发明专利

JPH05220378A PRODUCTION OF HIGH TEMPERATURE AND PRESSURE GENERATOR AND CUBIC BORON NITRIDE SINTERED COMPACT 失效
公开(公告)号：JPH05220378A
公开(公告)日：1993-08-31
申请号：JP5927492
申请日：1992-02-14
申请人： DENKI KAGAKU KOGYO KK
发明人： ISHIDA TSUMORU , KAWAGOE YOSHIMITSU
IPC分类号： B01J3/06 , C01B21/064 , C04B35/583
摘要： PURPOSE:To generate an extra-high pressure with good reproducibility by inserting gaskets between a cylinder and an anvil and using agalmatolite consisting essentially of pyrophyllite having a specified content of free water as the inner gasket and paper having a specified content of water as the outer gasket. CONSTITUTION:A cylinder is provided between a couple of anvils having different inner and outer inclined surfaces, a gasket corresponding to the inner and outer inclined surfaces is inserted between the cylinder and anvil, and hence a reaction chamber is formed in the space between the anvil and cylinder. Agalmatolite contg.

105. 发明专利

JPH05201764A PRODUCTION OF DIAMOND-IMPLANTED CARBIDE BY IN-PLACE CONVERSION OF DISPERSED GRAPHITE 失效
公开(公告)号：JPH05201764A
公开(公告)日：1993-08-10
申请号：JP22043191
申请日：1991-08-30
申请人： BAKER HUGHES INC
发明人： SUTEIIBUN AARU JIYUABUITSUTSU , TEIMOSHII DABURIYUU HAASUTO
IPC分类号： B01J3/06 , C04B35/52 , C04B35/56 , C04B35/645 , C04B41/88 , C22C26/00 , C30B29/04

106. 发明专利

JPH05200271A METHOD FOR GROWING IIB TYPE DIAMOND SINGLE CRYSTAL 失效
公开(公告)号：JPH05200271A
公开(公告)日：1993-08-10
申请号：JP1111792
申请日：1992-01-24
申请人： SUMITOMO ELECTRIC INDUSTRIES
发明人： SUMIYA HITOSHI , SATO SHUICHI
IPC分类号： B01J3/06 , C01B31/06 , C30B9/10 , C30B29/04 , H01L21/205
摘要： PURPOSE:To obtain a large single crystal wherein boron is uniformly distributed throughout IIb type diamond grown on a seed crystal, in a method for growing a diamond single crystal by a temp. difference method, by using IIb type diamond wherein boron is contained in a crystal as an isolated substitution type impurity as a carbon source. CONSTITUTION:A carbon source 1 is arranged to a high temp. part and a seed crystal 3 of diamond is arranged to a low temp. part and a solvent 2 is arranged between the carbon source 1 and the seed crystal 3 to be held at temp. melting the solvent 2 or higher under pressure thermally stabilizing diamond or more to grow a new diamond crystal on the seed crystal 3. At this time, IIb type diamond wherein boron is contained in a crystal as an isolated substitution type impurity is used as the carbon source to grow a IIb type diamond crystal uniform in boron concn. distribution on the seed crystal 3 so as to become at least larger than IIb type diamond used as the carbon source. As a result, a large diamond single crystal excellent in semiconductor characteristics can be obtained.

107. 发明专利

JPH05200270A HIGH PRESSURE GENERATING METHOD USING DIAMOND ANVIL WHICH IS PURE WITH RESPECT TO ISOTOPE 失效
公开(公告)号：JPH05200270A
公开(公告)日：1993-08-10
申请号：JP26396092
申请日：1992-10-02
申请人： GEN ELECTRIC
发明人： HARORUDO POURU BOUBENKAAKU
IPC分类号： B01J3/06 , C30B29/04 , G01N3/00 , G01N3/04 , G01N3/40
摘要： PURPOSE: To provide a method for forming a diamond anvil or an iron bed resistible to high static pressure. CONSTITUTION: Diamond anvils 10 and 12 are formed by one or more kinds of diamonds composed of isotopically-pure C diamond or isotopically-entiched C diamond. The C diamond is harder than natural diamond and the C diamond is harder than any other known materials. The diamond anvils 10 and 12 are formed of isotopically-pure C diamond, single crystal of C diamond, or polycrystal diamond each composed of isotopically-pure C diamond or C diamond. This single crystal or polycrystal diamond is formed by CVD technology or by high pressure and high temperature technology.

108. 发明专利

JPH05184905A CYLINDER FOR ULTRAHIGH PRESSURE GENERATOR AND ITS PRODUCTION 失效
公开(公告)号：JPH05184905A
公开(公告)日：1993-07-27
申请号：JP547992
申请日：1992-01-16
申请人： HITACHI METALS LTD
发明人： KADA YOSHIHIRO , NAKAMA ATSUSHI , MURAKAWA YOSHIYUKI , NAKAMURA HIDEKI
IPC分类号： B01J3/06
摘要： PURPOSE:To extend life by preventing a crack by imparting fiber flow in a proper direction and a sufficient forging ratio to the innermost periphery of a core receiving the high stress of ultrahigh pressure and holding them by an outside core through sufficiently strong metallurgical bonding. CONSTITUTION:A cylinder for an ultrahigh pressure generator synthesizing and producing a hard crystal such as industrial diamond has a ring-shaped core 5 having a through-hole bored therein at the central part thereof. In this case, the core 5 is formed by concentrically fitting a plurality of separately produced rings 1, 2. At least one of the fitting surfaces of the rings 1, 2 is constituted as a metallurgical contact part 4 mutually bonding the inside and outside rings 1, 2 metallurgically. In production, a plurality of the rings 1, 2 mutually different in a forging ratio and fiber flow 3 are fitted each other. The fitting surfaces of the rings 1, 2 are metallurgically bonded by hot static pressure press or heating.

109. 发明专利

JPH05154370A METHOD AND EQUIPMENT FOR MANUFACTURING PRODUCT AT SUPERHIGH PRESSURE 失效
公开(公告)号：JPH05154370A
公开(公告)日：1993-06-22
申请号：JP32772791
申请日：1991-12-11
申请人： ISHIKAWAJIMA HARIMA HEAVY IND
发明人： TOKUSHIGE KEINOSUKE , TSUDA KENICHI , NAGAI KENJI , YAJIMA SHIRO
IPC分类号： B01J3/06
摘要： PURPOSE:To obtain good-quality crystal by eliminating trouble for growth of crystal. CONSTITUTION:In the case of producing a product such as diamond at superhigh pressure by heating a reaction chamber encapsulated with a raw material while pressurizing the reaction chamber at superhigh pressure, the optimum pressurization force P1 exerted to the reaction chamber is increased at only corrected pressurization value DELTAP1 in accordance with change in volume due to conversion of the raw material in the reaction chamber and/or change in volume due to proceeding of reaction of the raw material.

110. 发明专利

JPH05132704A HIGH-HARDNESS MICROCRYSTAL SINTERED COMPACT AND PRODUCTION THEREOF 失效
公开(公告)号：JPH05132704A
公开(公告)日：1993-05-28
申请号：JP32367191
申请日：1991-11-11
申请人： KOBE STEEL LTD
发明人： TANAKA KAZUMITSU , MIYAMOTO MANABU , KITAHATA KOJIRO
IPC分类号： B01J3/06 , B22F7/00 , C04B35/52
摘要： PURPOSE:To produce the high-hardness microcrystal sintered compact capable of attaining an excellent finished-surface roughness when used for the edge of a cutting tool, a drawing die, etc., and excellent in wear resistance. CONSTITUTION:This sintered compact contains 60-94vol.% of diamond having =5wt.% of iron-family metal), and a solid soln. is formed at the grain boundary between the diamond and boron nitride as the structure. Meanwhile, such a sintered compact is also obtained by bringing a metal or alloy contg. >=5wt.% iron-group metal into contact with the amorphous carbon formed from the resin contg. the diamond powder having =1350 deg.C and at a pressure in the thermodynamic diamond stabilizing region.

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