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41. 发明专利

JP2005040805A Method for sealing working part of heat-resistant member 审中-公开
标题翻译：密封耐热部件工作部分的方法
公开(公告)号：JP2005040805A
公开(公告)日：2005-02-17
申请号：JP2003200832
申请日：2003-07-24
申请人： Hitachi Eng Co Ltd , Hitachi Ltd , 日立エンジニアリング株式会社 , 株式会社日立製作所
发明人： FUJITA KAZUHIRO , YOSHIDA SUMI , YOSHINARI AKIRA
IPC分类号： B23K20/12 , B23K20/16
摘要： PROBLEM TO BE SOLVED: To solve problems that sealing of a working part of a heat-resistant member by a melt-welding method is difficult because weldability of the heat-resistant material is not good, the disposition or a pressing method of an insert is sometimes difficult according to the position of a hole or a groove in the member in a diffusion-joining method of a non-melt-welding method, and joining in a semi-molten state is very difficult because the heat-resistant member has the high strength at high temperature in a case of a friction welding method.
SOLUTION: The thin layer of an insert is formed on either the working part of a heat-resistant member which is shaped by the pre-treatment, or the sealing member of substantially the same material. Then, the heat-resistant member and the sealing member are disposed on the working part via the insert. The working part of the heat-resistant member and the sealing member are joined with each other by a joining means as a primary treatment, and further joined firmly by performing the heating as a secondary treatment.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：解决的问题：为了解决由于耐热材料的焊接性不好而通过熔融焊接法密封耐热构件的工作部件的难题，由此，根据非熔融焊接方法的扩散接合方法，根据构件中的孔或槽的位置，插入件有时是困难的，并且半熔融状态的接合是非常困难的，因为耐热构件在摩擦焊接方法的情况下，在高温下具有高强度。解决方案：插入件的薄层形成在通过预处理成形的耐热构件的工作部分或基本上相同材料的密封构件上。然后，耐热构件和密封构件经由插入件设置在工作部件上。耐热构件和密封构件的工作部分通过作为主要处理的接合装置彼此接合，并且通过作为二次处理进行加热而进一步连接。版权所有（C）2005，JPO＆NCIPI

42. 发明专利

JP2003129155A SINGLE CRYSTAL Ni-BASE ALLOY SUPERIOR IN STRENGTH AND CORROSION RESISTANCE 审中-公开
公开(公告)号：JP2003129155A
公开(公告)日：2003-05-08
申请号：JP2001322183
申请日：2001-10-19
申请人： HITACHI LTD , KANSAI ELECTRIC POWER CO , MORINAGA MASAHIKO , MURATA SUMINORI
发明人： YOSHINARI AKIRA , HASHIZUME RYOKICHI , MORINAGA MASAHIKO , MURATA SUMINORI
IPC分类号： F01D5/28 , C22C19/05 , C22F1/00 , C22F1/10 , F02C7/00
摘要： PROBLEM TO BE SOLVED: To provide a single crystal Ni-base alloy which can be solution-treated at a higher temperature, and can improve oxidation resistance and corrosion resistance at high temperature, without sacrificing creep rupture strength at a higher temperature, and provide a manufacturing method therefor. SOLUTION: The objective single crystal Ni-base superalloy superior in strength and corrosion resistance comprises, by weight, 3.0-6.0% Cr, 3.0-15.0% Co, 5.0-7.0% W, 0.5-3.0% Mo, 3.5-6.0% Re, 4.0-8.0% Ta, 0.1-2.0% Ti, 4.5-6.0% Al, 0.01-0.2% Hf; by atom ratio, 14-16% Ta+Ti+Al; by weight, 0.01% or less C, 0.005% or less B, 0.01% or less Zr, 0.005% or less O, and 0.005% or less N; and the balance Ni with unavoidable impurities. The manufacturing method includes conducting several solution treatments and several aging treatments on the alloy.

43. 发明专利

JP2003120207A GAS TURBINE AND ITS STATIONARY BLADE 审中-公开
公开(公告)号：JP2003120207A
公开(公告)日：2003-04-23
申请号：JP2001316634
申请日：2001-10-15
申请人： HITACHI LTD
发明人： KITSUKA NOBUAKI , ANZAI SHUNICHI , UENO SANEYUKI , YOSHINARI AKIRA , TAKANO TAKESHI
IPC分类号： F01D9/02 , F02C7/00
摘要： PROBLEM TO BE SOLVED: To improve the reliability of a gas turbine and its stationary blade without deteriorating the sealing ability against coolant and the life of the stationary blade even if installing a probe for monitoring the inside of a gas path in the gas turbine and its stationary blade. SOLUTION: A pipe-like projected section 6 formed on the front side inside of an outer peripheral side end wall section 2 is erected facing the outer peripheral side from a base section 2a, which is an internal bottom face, and the outer peripheral side tip penetrates and projects outside more than a cavity cover 11, and the periphery is welded and jointed. This constitution improves an allowable value for the stress caused by thermal deformation and eliminate the necessity of the welded part to a gas path wall 28 in structure, for improving durability against a high temperature main flowing gas 21.

44. 发明专利

JPH08262009A EVALUATION METHOD OF REMAINING LIFE OF HIGH-TEMPERATURE MEMBER 失效
公开(公告)号：JPH08262009A
公开(公告)日：1996-10-11
申请号：JP6370995
申请日：1995-03-23
申请人： HITACHI LTD
发明人： TAMAOKI HIDEKI , YOSHINARI AKIRA , KOBAYASHI MITSURU , WATABE NORIYUKI
IPC分类号： G01N33/20 , C22C19/07
摘要： PURPOSE: To evaluate the remaining life of a high-temperature member with high accuracy by a method wherein the relationship between the quantified value of a shape and the damage amount of the high-temperature member is found in advance and the shape of a eutectic structure is quantified by an image processing method. CONSTITUTION: The creep rupture test of a creep-damaged material by using an unused material which is the same as an actual-machine material is executed under several conditions of different stresses. In addition, a sample whose rupture time has been interrupted at 10 to 90% of the time is prepared. Samples, for structure observation, which have been sampled from interrupted materials and ruptured materials are observed with a scanning electron microscope, and their eutectic structure shape is quantified at an aspect ratio by using an image analyzer. Then, the relationship between the aspect ratio and a damage amount is registered as a master curve 7 in a database 6. Then, a sample actual-machine observation is sampled from an actual machine in which the main damage of a moving blade is creep damage due to the result of an investigation, and it is observed in the same manner as the creation of the curve 7 so as to be quantified. this quantified value is applied to the curve 7, and the damage amount of the actual-machine material is found. Thereby, a remaining life can be evaluated with high accuracy.

45. 发明专利

JPH07302811A LARGE CURRENT ALUMINUM WIRE AND SEMICONDUCTOR MODULE USING THE ALUMINUM WIRE 失效
公开(公告)号：JPH07302811A
公开(公告)日：1995-11-14
申请号：JP9611494
申请日：1994-05-10
申请人： HITACHI LTD
发明人： ONUKI HITOSHI , KOIZUMI MASAHIRO , YOSHINARI AKIRA
IPC分类号： H01L21/60
摘要： PURPOSE:To provide a power module having a wire bonding material, superior in heat fatigue resistance. CONSTITUTION:A semiconductor module has many IGBTs and diode chips parallel disposed on common electrode plates on an insulation board. Aluminum electrodes of the IGBTs and diodes are ultrasonically connected to the common and gate electrode plates through Cu wires of 500mum diameter. the grain size to diameter ratio of which is 0.1-0.6; the wire contg. aluminium of 18-30Hv 0.5X. By using this wire, spread of cracks can be reduced, compared with that in the case of using a 500mum Al wire. Thus, a strong structure against the thermal fatigue in practice can be made.

46. 发明专利

JPH07247802A MANUFACTURE OF SINGLE CRYSTAL BLADE FOR GAS TURBINE 失效
公开(公告)号：JPH07247802A
公开(公告)日：1995-09-26
申请号：JP3940794
申请日：1994-03-10
申请人： HITACHI LTD , TOHOKU ELECTRIC POWER CO
发明人： YOSHINARI AKIRA , IIJIMA KATSUMI , SAITO TOSHIAKI , OKAYAMA AKIRA , HIRANE TERUO , ISHIDA TADAMI , ICHIGE MAKOTO , WADA KATSUO , KANO KIMIO , MATSUZAKI HIROYUKI
IPC分类号： F01D5/14 , B22C9/04 , B22D27/04 , F01D5/28 , F02C7/00
摘要： PURPOSE:To cast a complex shaped single crystal blade for a gas turbine having a protruding part. CONSTITUTION:A mold corresponding to a structure provided with a crystal growth promoting passage 1a of a triangle plate extending to the side of a platform part 12 on the angle of the blade surface of the blade part 8 to the platform part 12 surface is used in an integrated construction blade provided with a column blade part 8, a platform part 12 extending from the root of the blade part 8 in lateral direction, a block shaped shank part 9 extending downward from the platform 12, a block shaped dovetail 10 extending in lateral direction below the shank part 9, and a curbed plate shaped seal part 11 protruding from the shank part 9 side surface The mold is provided on a water cooling chill plate with the blade part 8 orientated downward, Ni group alloy fusion which is filled in the mold is gradually solidified in one direction upward from the water cooling chill plate so as to cast a single crystal tissue. It is thus possible to form single crystal on the platform protruding part by the crystal growth promoting passage.

47. 发明专利

JPH07145703A MOVING BLADE FOR GAS TURBINE, MANUFACTURE THEREOF, AND GAS TURBINE USING SAME 失效
公开(公告)号：JPH07145703A
公开(公告)日：1995-06-06
申请号：JP18440594
申请日：1994-08-05
申请人： HITACHI LTD , TOHOKU ELECTRIC POWER CO
发明人： YOSHINARI AKIRA , TAMAOKI HIDEKI , SAITO TOSHIAKI , KOBAYASHI MITSURU , IIJIMA KATSUMI , WADA KATSUO , KANO KIMIO , MATSUZAKI HIROYUKI
IPC分类号： F01D5/18 , B22D27/04 , C22C19/05 , F01D5/28 , F02C7/00
摘要： PURPOSE:To achieve excellent creep strength and eliminate an intercrystalline crack by constituting a moving blade of an integral casting where a part of a blade unit, a platform and a shank unit is made of monocrystal and a part except for the part made of monocrystal is made of columnar crystal coagulated in one direction. CONSTITUTION:A gas turbine moving blade comprises a blade unit 1, a platform 15 having a flat portion continuous to the blade unit 1, a shank unit 18 continuous to the blade 1 and the platform 15, and fins 14 formed on both sides of the shank unit 18, a dovetail continuous to the shank unit 18. The blade unit 1 is made of monocrystal, and the whole except for the blade unit 1 is an integral casting of columnar crystal coagulated in one direction. The casting is composed of 0-0.20wt.% of C, 2-16wt.% of Cr, 4-7wt.% of Al, 2-15wt.% of W, 0.5-5wt.% of Ti, 0-3wt.% of Nb, 0-6wt.% of Mo, 0-12wt.% of Ta, 0-10.5wt.% of Co, 0-2wt.% of Hf, 0-4wt.% of Re, 0-0.035wt.% of B, 0-0.035wt.% of Zr and the rest of 58wt.% or more of Ni.

48. 发明专利

JPH0633701A SINGLE CRYSTAL MOVING BLADE FOR GAS TURBINE AND PRODUCTION THEREOF 失效
公开(公告)号：JPH0633701A
公开(公告)日：1994-02-08
申请号：JP18945592
申请日：1992-07-16
申请人： HITACHI LTD , TOHOKU ELECTRIC POWER CO
发明人： YOSHINARI AKIRA , SAITO TOSHIAKI , IIJIMA KATSUMI , ISHIDA TADAMI , OKAYAMA AKIRA , HIRANE TERUO , KANO KIMIO , MATSUZAKI HIROYUKI
IPC分类号： B22D27/04 , C30B21/02 , F01D5/28
摘要： PURPOSE:To provide, a single crystal moving blade for a gas turbine which is excellent in creep strength and creep fatigue resistance, and a production thereof. CONSTITUTION:A seed crystal is set on the bottom of a mold, in such a way as a complicated cooling hole is formed inside a moving blade, longitudinal crystal orientation upon which centrifugal stress acts is orientation 1 and orientation 2 perpendicular to longitudinal orientation 1 becomes normal direction to a face where maximum thermal stress of the blade is generated, and a single crystal moving blade is produced by an one-way solidification method.

49. 发明专利

JPS6451364A PRODUCTION OF OXIDE SUPERCONDUCTING MATERIAL 失效
公开(公告)号：JPS6451364A
公开(公告)日：1989-02-27
申请号：JP20634887
申请日：1987-08-21
申请人： HITACHI LTD
发明人： YOSHINARI AKIRA , UCHIDA TETSUO , UCHIDA TOSHIO , WATABE NORIYUKI , MORIMOTO SHOGO
IPC分类号： H01L39/12 , C01G1/00 , C04B35/00 , C04B35/45 , C04B35/653 , C04B41/80 , H01B12/00
摘要： PURPOSE:To obtain an oxide superconducting material having scarce dispersion of superconducting characteristic and having high reliability by melting an oxide superconducting material in O2-contg. atmosphere, solidifying the material by cooling quickly to below a specified temp., and then heat-treating in O2-contg. atmosphere. CONSTITUTION:For example, each oxide of Y2O3, BaO, and Cu2O is weighed in specified mole fractions, and a crucible 2 provided with a cover 1, wherein said oxides are charged and a nozzle 5 is buried therein, is held at 1,550 deg.C by high frequency heating to melt the weighed oxides. O2 is then fed from an O2 source 6 by opening a valve 7 to stirr and enrich molten oxides with O2 sufficiently. Molten oxides are solidified by cooling quickly immediately thereafter while pressing simultaneously with a two belts quick cooling apparatus given in the drawing. The cooling velocity in this stage corresponds to a cooling velocity for cooling to below 50 deg.C within 0.5sec. An aimed oxide superconducting material is obtd. by heat-treating obtd. vitreous product in a heat-treating furnace in O2 atmosphere at, for example, 950 deg.C.

50. 发明专利

JP2014074208A HIGH STRENGTH Ni-BASED SUPERALLOY, AND GAS TURBINE USING THE SAME 有权
标题翻译：高强度镍基超级合金和使用其的气体涡轮机
公开(公告)号：JP2014074208A
公开(公告)日：2014-04-24
申请号：JP2012222648
申请日：2012-10-05
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： WANG YUTING , YOSHINARI AKIRA
IPC分类号： C22C19/05 , F01D5/28 , F01D9/02 , F01D25/00 , F02C7/00
摘要： PROBLEM TO BE SOLVED: To provide a Ni-based superalloy having equal or higher corrosiveness compared with conventional alloys, improved creep strength at high temperature and oxidation resistance without adding Ta, Re in normal casting materials.SOLUTION: A Ni-based superalloy contains Cr:11.0% to 15.0%, Mo:0.1% to 0.5%, Ti:0.5% to 2.1%, Al:4.5% to 7.0%, Co:9.5% to 20.0%, W:10.1 to 15.0%, Hf:0.5% or less, Nb:0.005% to 0.60%, B:0.02% or less, C:0.2% or less and the balance Ni with inevitable impurities. The Ni-based superalloy does not contain Ta and Re.
摘要翻译：要解决的问题：为了提供与常规合金相比具有相同或更高腐蚀性的Ni基超级合金，在常温铸造材料中不添加Ta，Re，在高温下具有改善的蠕变强度和抗氧化性。解决方案：Ni基超合金含有Cr ：11.0〜15.0％，Mo：0.1〜0.5％，Ti：0.5〜2.1％，Al：4.5〜7.0％，Co：9.5％〜20.0％，W：10.1〜15.0％，Hf：0.5％以下，Nb：0.005〜0.60％，B：0.02％以下，C：0.2％以下，余量为不可避免的杂质。 Ni基超级合金不含Ta和Re。

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