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1. 发明专利

JP2000256770A LOW THERMAL EXPANSION Ni BASE SUPERALLOY 失效
公开(公告)号：JP2000256770A
公开(公告)日：2000-09-19
申请号：JP5605999
申请日：1999-03-03
申请人： MITSUBISHI HEAVY IND LTD , DAIDO STEEL CO LTD
发明人： UMAGOE RYUTARO , KAWAI HISATAKA , KADOYA YOSHIKUNI , YAMAMOTO RYUICHI , NODA TOSHIHARU , ISOBE SUSUMU , OKABE MICHIO
IPC分类号： C22C19/05 , B01J23/00
摘要： PROBLEM TO BE SOLVED: To provide a low thermal expansion Ni base superalloy having a linear expansion coefficient equal to that of 12Cr steel and also having high temp. strength and corrosion resistance and oxidation resistance similar to those of an austenitic heat resistant alloy. SOLUTION: This superalloy has a compsn. contg., by weight, = two kinds among Mo, W and Re so as to satisfy Mo+1/2(W+Re): 10 to 25%, one or two kinds among 0.2 to 2% Al, 0.5 to 4.5% Ti,

2. 发明专利

JP2005314728A METHOD FOR PRODUCING LOW THERMAL EXPANSION Ni BASED SUPERALLOY 有权
标题翻译：生产低热膨胀Ni基超级合金的方法
公开(公告)号：JP2005314728A
公开(公告)日：2005-11-10
申请号：JP2004132135
申请日：2004-04-27
申请人： Daido Steel Co Ltd , Mitsubishi Heavy Ind Ltd , 三菱重工業株式会社 , 大同特殊鋼株式会社
发明人： UEDA SHIGENORI , NODA TOSHIHARU , YAMAMOTO RYUICHI , KADOYA YOSHIKUNI , UMAGOE RYUTARO , NISHIMOTO SHIN
IPC分类号： C22C19/03 , C22C19/05 , C22F1/00 , C22F1/10
CPC分类号： C22C19/056 , C22C19/03 , C22C19/057 , C22C19/058 , C22F1/10
摘要： PROBLEM TO BE SOLVED: To provide a method for producing a low thermal expansion Ni based superalloy having higher high temperature creep fracture strength required. e.g., as that of a fastening bolt in a vapor turbine.
SOLUTION: An alloy having a composition comprising, by mass, ≤0.15% C, ≤1% Si, ≤1% Mn, 5 to 20% Cr, one or more kinds of metals selected from Mo, W and Re by 17 to 27% in terms of Mo+1/2(W+Re), 0.1 to 2% Al, 0.1 to 2% Ti (wherein, Nb+Ta/2:≤1.5%), ≤10% Fe, ≤5% Co, 0.001 to 0.02% B, 0.001 to 0.2% Zr, and the balance Ni with inevitable components is subjected to solution heat treatment at 1,000 to 1,200°C, is thereafter subjected to carbide stabilization treatment for agglomerating and stabilizing intergranular carbides at 850 to 2 B phase.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种要求具有较高的高温蠕变断裂强度的低热膨胀Ni基超级合金的制造方法。例如，作为蒸气涡轮机中的紧固螺栓的那些。＆lt;解决方案＆gt;一种合金，其组成包括以质量计≤0.15％C，≤1％Si，≤1％Mn，5〜20％Cr，选自Mo，W和Re中的一种或多种金属，以Mo + 1/2（W + Re），0.1〜2％的Al，0.1〜2％的Ti（其中，Nb + Ta / 2：≤1.5％），≤10％Fe，≤5 ％Co，0.001〜0.02％B，0.001〜0.2％Zr，余量为Ni的不可避免成分在1000〜1200℃下进行固溶热处理，然后进行碳化物稳定化处理，使晶粒间碳化物凝聚稳定在850℃ 在<1000℃下进行1〜50小时，进一步在720〜900℃进行1〜50小时的老化处理，析出γ'相，随后在550〜700℃下进行二次时效处理 5至100小时以沉淀出A 2 B相。版权所有（C）2006，JPO＆NCIPI

3. 发明专利

JP2003013161A Ni-BASED AUSTENITIC SUPERALLOY WITH LOW THERMAL EXPANSION AND MANUFACTURING METHOD THEREFOR 审中-公开
标题翻译：具有低热扩张性的镍基奥氏体超级合金及其制造方法
公开(公告)号：JP2003013161A
公开(公告)日：2003-01-15
申请号：JP2001195741
申请日：2001-06-28
申请人： Daido Steel Co Ltd , Mitsubishi Heavy Ind Ltd , 三菱重工業株式会社 , 大同特殊鋼株式会社
发明人： YAMAMOTO RYUICHI , KADOYA YOSHIKUNI , UMAGOE RYUTARO , NODA TOSHIHARU , ISOBE SUSUMU , OKABE MICHIO , KAWAI HISATAKA
IPC分类号： F16J12/00 , C22C19/05
摘要： PROBLEM TO BE SOLVED: To provide a Ni-based austenitic superalloy with a low thermal expansion, having a coefficient of thermal expansion equal to that of a ferrite-based 12Cr steel, and high-temperature strength and corrosion/oxidation resistance equal to that of an austenite-based heat resistant alloy.
SOLUTION: This super alloy includes carbon 0.15 mass% or less, silicon 1 mass% or less, manganese 1 mass% or less, chromium 5-20 mass%, molybdenum 17-26 mass%, aluminum 0.1-2.0 mass%, titanium 0.1-2.0 mass%, iron 10 mass% or less, boron 0.02 mass% or less, zirconium 0.2 mass% or less, tungsten, rhenium, and the balance substantially nickel, while the sum of aluminum and titanium content is 1-5.5 atom.%, satisfying the expression: 17≤Mo+(W+ Re)/2≤27, where Mo indicates a molybdenum content by mass%, W indicates a tungsten content by mass%, and Re indicates a rhenium content by mass%. The super alloy, further has a structure, in which a γ'-phase consisting of intermetallic compounds, and a A
2 B-phase consisting of intermetallic compounds, form composite precipitates.
COPYRIGHT: (C)2003,JPO
摘要翻译：要解决的问题：提供具有与铁素体系12Cr钢的热膨胀系数相当的热膨胀系数的具有低热膨胀系数的Ni基奥氏体超耐热合金，以及高温强度和耐腐蚀/抗氧化性等于奥氏体型耐热合金。解决方案：该超合金包括0.15质量％以下的碳，1质量％以下的硅，1质量％以下的锰，5〜20质量％的铬，17〜26质量％的铬，0.1〜2.0质量％的铝，0.1质量％ -2.0质量％，铁10质量％以下，硼0.02质量％以下，0.2质量％以下的钨，铼，余量基本上为镍，铝和钛的总和为1-5.5原子。％，满足以下表达式：17 <= Mo +（W + Re）/ 2 <= 27，其中Mo表示以质量％计含有的钼含量，W表示钨质量％，并且Re表示铼含量以质量％计。超合金还具有由金属间化合物构成的γ'相和由金属间化合物构成的A2B相形成复合析出物的结构。

4. 发明专利

JP2004036546A Steam turbine partition plate 审中-公开
公开(公告)号：JP2004036546A
公开(公告)日：2004-02-05
申请号：JP2002196444
申请日：2002-07-04
申请人： Mitsubishi Heavy Ind Ltd , 三菱重工業株式会社
发明人： UMAGOE RYUTARO , SHIRAI HIROKAZU , TANAKA KEIZO
IPC分类号： F01D9/02 , F01D25/24
摘要： PROBLEM TO BE SOLVED: To provide a steam turbine partition plate having excellent assembling efficiency without impairment of the turbine efficiency by improving a uniting means between a stationary blade and inner/outer rings.
SOLUTION: With the outer ring 6, the stationary blade 7, and the inner ring 9, fitting portions 12, 19, 17, 21 are fitted. When assembling partition plates 4, 5, the partition palates 4, 5 are made to side entry from a circumferential direction of the outer ring 6, and the inner rings 9, 10 by every 180 degrees, and fixed by caulking 23, 24 and the like. The stationary blades 7, 8 and the inner rings 9, 10 pierce a part superimposed by fitting with pins 25, 26 and units that, in at least one fitting portion. Therefore, the position difference and falling of the stationary blade can be prevented, and fitting between the stationary blade and the inner ring becomes certain. In this way, the assembling efficiency of the partition plates 4, 5 and working efficiency in maintenance can be remarkably improved. Welding and annealing work can be omitted, so that the surface roughness of the polished stationary blades 7, 8 is prevented from deteriorating.
COPYRIGHT: (C)2004,JPO

5. 发明专利

JP2004011434A FLUID EQUIPMENT 审中-公开
公开(公告)号：JP2004011434A
公开(公告)日：2004-01-15
申请号：JP2002162023
申请日：2002-06-03
申请人： MITSUBISHI HEAVY IND LTD
发明人： UMAGOE RYUTARO , NISHIKATSU HIDE
IPC分类号： F01D5/10 , F01D9/02 , F04D29/56 , F04D29/66 , F16F15/129
摘要： PROBLEM TO BE SOLVED: To attenuate a relative minute vibration to a shroud of a variable stator blade body. SOLUTION: In the fluid equipment such as a gas turbine, a compressor, and the like, the stator blade body 100 for regulating a flow passage of a fluid is supported, at a rotation shaft 101, to be rotatable by the shroud 110. A hole 1 is formed to an end 102 of the rotation shaft 101, a friction member 10 is inserted into the hole 1 to make contact to an inner wall of the hole 1 at vibration of the stator blade body 100, thereby generating friction. Further, the friction member 10 is held by a holding member 3, and the holding member 3 is arranged to the shroud 110 side. COPYRIGHT: (C)2004,JPO

6. 发明专利

JP2001295668A COMBUSTOR WALL COOLING SYSTEM 失效
公开(公告)号：JP2001295668A
公开(公告)日：2001-10-26
申请号：JP2000111557
申请日：2000-04-13
申请人： MITSUBISHI HEAVY IND LTD
发明人： UMAGOE RYUTARO , SHIMIZU TAKEHIKO , TANAKA KATSUNORI , BANDAI SHIGEMI , KONDO MITSURU
IPC分类号： F02C7/18 , F02C7/16
摘要： PROBLEM TO BE SOLVED: To provide a combustor wall cooling system, capable of increasing cooling effects for an area near a combustion gas outlet part and simplifying the cooling structure. SOLUTION: This combustor wall cooling system is formed, so that cooling steam is circulated in a cooling jacket 5A formed in a combustor tail tube 4. The cooling steam is fed from the combustion gas outlet part (manifold 6c) of the combustor tail tube 4 and collected from one position on the combustion gas inlet part (manifold 6a) side thereof.

7. 发明专利

JP2001289059A GAS TURBINE AND COMBINED CYCLE PLANT 失效
公开(公告)号：JP2001289059A
公开(公告)日：2001-10-19
申请号：JP2000099668
申请日：2000-03-31
申请人： MITSUBISHI HEAVY IND LTD
发明人： UMAGOE RYUTARO , HAGI NAOKI , ICHIYANAGI TAKU
IPC分类号： F01D9/02 , F01D11/24 , F01D25/00 , F02C7/18
摘要： PROBLEM TO BE SOLVED: To reduce the moving blade end loss of a gas turbine and loss caused by the leakage of an operating fluid from a clearance between members constituting an annular passage. SOLUTION: A turbine AT of the gas turbine GT built in a combined cycle plant CC is provided with a first blade ring 41 supported to a turbine casing 4 so as to be expandable in the radial direction of a turbine shaft 32, corresponding to each turbine stationary blade TS1 and each turbine moving blade TR1 constituting a first stage, and having a first heat medium passage 41P for circulating steam; a second blade ring 42 corresponding to each turbine stationary blade TS2 and each turbine moving blade TR2 constituting a second stage and having a second heat medium passage 42P for circulating steam; and a communicating member 45 for connecting the first blade ring 41 and the second blade ring 42 to each other and communicating the first heat medium passage 41P and the second heat medium passage 42P with each other.

8. 发明专利

JP2001123801A TURBINE ROTOR AND METHOD OF MANUFACTURING THE SAME 失效
公开(公告)号：JP2001123801A
公开(公告)日：2001-05-08
申请号：JP30040699
申请日：1999-10-22
申请人： MITSUBISHI HEAVY IND LTD
发明人： SHIGE TAKASHI , FUKUNAGA YOSHIAKI , JO KATSUHIDE , UMAGOE RYUTARO , KONISHI SATORU
IPC分类号： F01D5/02
摘要： PROBLEM TO BE SOLVED: To provide a steam turbine rotor, gas turbine rotor and method of manufacturing them that can ensure performance of a welded joint, while ensuring base metal strength. SOLUTION: This method of manufacturing a turbine rotor comprises a step of welding an overlay 12 of a 9% Cr steel to a 12% Cr steel 2, a step of applying high-temperature heat treatment to the overlay weld 12 and 12% Cr steel 2, a step of welding a 2-1/4 CrMoV low alloy steel 6 or 3.5 CrMoV low alloy steel 7 to the overlay weld 12, and a step of subjecting to low- temperature heat treatment for the entire rotor materials 2, 6 and 7. The rotor materials 2, 6 and 7 each contain vanadium.

9. 发明专利

JP2001003710A EXHAUST DEVICE OF STEAM TURBINE 失效
公开(公告)号：JP2001003710A
公开(公告)日：2001-01-09
申请号：JP16869999
申请日：1999-06-15
申请人： MITSUBISHI HEAVY IND LTD
发明人： UMAGOE RYUTARO , NAKANO TAKASHI
IPC分类号： F01D25/30 , F01D25/26
摘要： PROBLEM TO BE SOLVED: To attain smooth flow of exhaust without the generation of a vortex by providing a flow guide for guiding exhaust to cover the outer surface of an inner casing, and forming an exhaust chamber between the outer surface of the flow guide and the inner surface of an outer casing. SOLUTION: Exhaust chambers 9a, 9b, 9c of a high pressure turbine are formed between the outer periphery of an inner casing 2 and the inner periphery of an outer casing 1. An upper flow guide 20 is provided so as to cover the outer periphery of the upper half of the inner casing 2. A lower flow guide 21 is formed along the outer periphery of the lower half of the inner casing 2 to be extended downward more than the upper flow guide 20 and expanded. The upper flow guide 20 and the lower flow guide 21 are provided with the end faces butted against each other at the fitting parts to flanges 2a, 2b and extending over the whole of the exhaust chambers 9a, 9b, 9c toward the center of the turbine rotor. Since recessed parts formed on the upper and lower sides of the flange parts 2a, 2b do not face to the exhaust chambers, an exhaust chamber formed on the outside of the flow guide 20 becomes an exhaust passage without projected and recessed parts.

10. 发明专利

JP2001003708A STEAM TURBINE PLANT AND INSTALLATION METHOD FOR APPARATUS INCLUDING IT 失效
公开(公告)号：JP2001003708A
公开(公告)日：2001-01-09
申请号：JP16869899
申请日：1999-06-15
申请人： MITSUBISHI HEAVY IND LTD
发明人： UMAGOE RYUTARO , KONISHI SATORU
IPC分类号： F01D25/00 , F01D25/18 , F01D25/28 , F01K13/00 , F16M7/00
摘要： PROBLEM TO BE SOLVED: To support the vacuum load of a condenser without excessive deformation of a steel frame by interposing a spring mechanism and a vibration-proof damper between the lower surface of the condenser of a steam turbine and the foundation frame. SOLUTION: A steel frame 1 is elastically and vibration-proof supported on a foundation frame 50 through plural spring mechanisms 40 and plural vibration-proof dampers 30 arranged side by side. Further, a condenser 10 is provided with plural spring mechanisms 40 and vibration-proof dampers 30 arranged side by side between the lower surface thereof and the foundation frame 50 to thereby support the condenser 10 elastically and in the vibration-proof state. During the operation of a turbine generator, by the thermal expansion of the condenser 10, vertical displacement is caused in the condenser 10 and a first low pressure turbine 4 and a second low pressure turbine 5 to which the condenser 10 is fixed. However, since the steel frame 1 and the condenser 10 are supported on the foundation frame 50 through the spring mechanisms 40 and the vibration-proof dampers 30, the vertical displacement is absorbed by the elastic and vibration-proof mechanism and no excessive load is applied to the steel-made frame 1.

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