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1. 发明授权

US06419453B2 Steam turbine rotor shaft 有权
标题翻译：蒸汽轮机转子轴
公开(公告)号：US06419453B2
公开(公告)日：2002-07-16
申请号：US09797989
申请日：2001-03-05
申请人： Yutaka Fukui , Hiroyuki Doi , Masahiko Arai , Ryo Hiraga , Kenichiro Nomura , Toshio Fujita , Yasuhiko Tanaka
发明人： Yutaka Fukui , Hiroyuki Doi , Masahiko Arai , Ryo Hiraga , Kenichiro Nomura , Toshio Fujita , Yasuhiko Tanaka
IPC分类号： B63H126
CPC分类号： F01D5/28 , C21D8/0205 , C21D9/28 , C21D9/38 , C22C38/001 , C22C38/44 , C22C38/46 , C22C38/48 , C22C38/52 , C22C38/54 , F01D25/005 , F05C2201/0463 , F05C2201/0466 , F05D2220/31 , F05D2240/60 , F05D2300/131 , F05D2300/132
摘要： The main object of the present invention is to provide a steam turbine rotor shaft whose high-temperature strength is excellent at a selected temperature of 650 degrees C. A steam turbine rotor shaft comprising 0.05% to 0.20% by weight of carbon, 0.20% or less by weight of silicon, 0.05% to 1.5% by weight of manganese, 0.01% to 1.0% by weight of nickel, 9.0% to 13.0% by weight of chrome, 0.05% to 2.0% by weight of molybdenum, 0.5% to 5.0% by weight of tungsten, 0.05% to 0.30% by weight of vanadium, 0.01% to 0.20% by weight of niobium, 0.5% to 10.0% by weight of cobalt, 0.01% to 0.1% by weight of nitrogen, 0.001% to 0.030% by weight of boron, 0.0005% to 0.006% by weight of aluminum, and the remaining parts substantially comprising iron and inevitable impurities.
摘要翻译：本发明的主要目的在于提供一种蒸汽轮机转子轴，其特征在于，在选定温度为650度的汽轮机转子轴的选定温度下，包括0.05重量％至0.20重量％的碳，0.20重量％以下，通过重量的硅，0.05〜1.5％的锰，0.01〜1.0％的镍，9.0〜13.0％的铬，0.05〜2.0％的钼，0.5〜5.0％的重量的钨，0.05〜0.30％的钒，0.01〜0.20％的铌，0.5〜10.0％的钴，0.01〜0.1％的氮，0.001〜0.030％的重量的硼，0.0005％至0.006％的铝，其余部分基本上包含铁和不可避免的杂质。

2. 发明授权

US08596982B2 Turbine rotor 有权
标题翻译：涡轮转子
公开(公告)号：US08596982B2
公开(公告)日：2013-12-03
申请号：US12821433
申请日：2010-06-23
申请人： Eiji Nishioka , Masahiko Arai , Hiroyuki Doi
发明人： Eiji Nishioka , Masahiko Arai , Hiroyuki Doi
IPC分类号： F01D5/08
CPC分类号： F01D5/063 , F01D5/081 , F05D2220/31 , F05D2230/232
摘要： A turbine rotor which is easy to manufacture and has a high tolerable temperature is provided. A highly efficient steam turbine power plant is also provided. The turbine rotor is configured from a rotor shaft, an inner rotor disc constructed integrally with the rotor shaft, and an outer rotor disc which is welded to the inner rotor disc via a weld metal part and has a structure for fixing a turbine blade. The outer rotor disc preferably has a cooling hole which extends in an axial direction to penetrate the outer rotor disc over the thickness of the outer rotor disc.
摘要翻译：提供了易于制造且具有高耐受温度的涡轮转子。还提供了一种高效率的蒸汽轮机发电厂。涡轮转子由转子轴，与转子轴一体构成的内转子盘和外转子盘构成，外转子盘通过焊接金属部件焊接到内转子盘，并具有用于固定涡轮叶片的结构。外转子盘优选具有在轴向方向上延伸以在外转子盘的厚度上穿过外转子盘的冷却孔。

3. 发明授权

US08225672B2 Method for assessing remaining lifespan of bolt used at high temperatures 有权
标题翻译：评估高温螺栓使用寿命的方法
公开(公告)号：US08225672B2
公开(公告)日：2012-07-24
申请号：US12708017
申请日：2010-02-18
申请人： Masahiko Arai , Shinichi Kobayasji , Hiroyuki Doi , Hiroaki Chiba , Takashi Haneishi
发明人： Masahiko Arai , Shinichi Kobayasji , Hiroyuki Doi , Hiroaki Chiba , Takashi Haneishi
IPC分类号： G01N3/00
CPC分类号： G01N3/60 , G01N2203/0071 , G01N2203/0688 , G01N2203/0694
摘要： The present invention is intended to provide a method for assessing remaining lifespan of a bolt with higher precision than conventional methods, which can be applied to a bolt comprising a high alloy with fewer tissue changes caused by creep damage.The present invention provides a method for assessing the remaining lifespan of a bolt used at high temperatures, including: carrying out a creep test for a bolt material that constitutes a bolt to be assessed and determining a life-time and a life-elongation rate; determining a time-temperature parameter based on the life-time and the creep test temperature; creating a lifespan-assessment diagram by plotting the time-temperature parameter with respect to the life-elongation rate; measuring a elongation rate between before and after the use of the bolt to be assessed; and assessing the remaining lifespan of the bolt with the use of the elongation rate between before and after the use of the bolt to be assessed and the lifespan-assessment diagram.
摘要翻译：本发明旨在提供一种用于评估具有比常规方法更高精度的螺栓的剩余寿命的方法，其可以应用于包括由蠕变损伤引起的较少组织变化的高合金的螺栓。本发明提供一种用于评估在高温下使用的螺栓的剩余寿命的方法，包括：对构成要评估的螺栓的螺栓材料进行蠕变试验，并确定寿命和寿命延长率; 根据寿命和蠕变试验温度确定时间 - 温度参数; 通过绘制时间 - 温度参数相对于寿命延长率来创建寿命评估图; 测量在使用要评估的螺栓之前和之后的伸长率; 并使用在评估螺栓的使用前后的伸长率和寿命评估图来评估螺栓的剩余寿命。

4. 发明申请

US20100329849A1 TURBINE ROTOR 有权
标题翻译：涡轮转子
公开(公告)号：US20100329849A1
公开(公告)日：2010-12-30
申请号：US12821433
申请日：2010-06-23
申请人： Eiji NISHIOKA , Masahiko Arai , Hiroyuki Doi
发明人： Eiji NISHIOKA , Masahiko Arai , Hiroyuki Doi
IPC分类号： F01D5/08
CPC分类号： F01D5/063 , F01D5/081 , F05D2220/31 , F05D2230/232
摘要： A turbine rotor which is easy to manufacture and has a high tolerable temperature is provided. A highly efficient steam turbine power plant is also provided. The turbine rotor is configured from a rotor shaft, an inner rotor disc constructed integrally with the rotor shaft, and an outer rotor disc which is welded to the inner rotor disc via a weld metal part and has a structure for fixing a turbine blade. The outer rotor disc preferably has a cooling hole which extends in an axial direction to penetrate the outer rotor disc over the thickness of the outer rotor disc.
摘要翻译：提供了易于制造且具有高耐受温度的涡轮转子。还提供了一种高效率的蒸汽轮机发电厂。涡轮转子由转子轴，与转子轴一体构成的内转子盘和外转子盘构成，外转子盘通过焊接金属部件焊接到内转子盘，并具有用于固定涡轮叶片的结构。外转子盘优选具有在轴向方向上延伸以在外转子盘的厚度上穿过外转子盘的冷却孔。

5. 发明申请

US20050074356A1 Heat resisting steel, gas turbine using the steel, and components thereof 审中-公开
标题翻译：耐热钢，使用钢的燃气轮机及其部件
公开(公告)号：US20050074356A1
公开(公告)日：2005-04-07
申请号：US10757847
申请日：2004-01-16
申请人： Masahiko Arai , Hirotsugu Kawanaka , Hiroyuki Doi , Isao Takehara , Hidetoshi Kuroki
发明人： Masahiko Arai , Hirotsugu Kawanaka , Hiroyuki Doi , Isao Takehara , Hidetoshi Kuroki
IPC分类号： F01D5/06 , C22C38/00 , C22C38/44 , C22C38/46 , C22C38/52 , C22C38/54 , F01D5/28 , F02C7/00
CPC分类号： C22C38/44 , C22C38/001 , C22C38/002 , C22C38/02 , C22C38/04 , C22C38/46 , C22C38/48 , C22C38/52 , C22C38/54
摘要： The invention is of a heat resisting martensitic steel comprising, by weight, 0.05 to 0.30% C, not more than 0.50% Si, not more than 0.60% Mn, 8.0 to 13.0% Cr, 0.5 to 3.0% Ni, 1.0 to 3.0% Mo, 0.1 to 1.5% W, 0.5 to 4% Co, 0.05 to 0.35% V, 0.02 to 0.30% in total of one or two elements selected from the group consisting of Nb and Ta, and 0.02 to 0.10% N, wherein a value of the square of a difference between the Ni amount and the Co amount, and the Ni amount are not more than values determined by a straight line drawn on a point A (1.0, 2.7%) and a point B (2.5, 1.0%) in the orthogonal coordinates shown in the attached drawing of FIG. 2 which represents a relationship between the above square value and the Ni amount, and an amount ratio of Mo/(Mo+0.5 W) is not less than 0.5. The heat resisting steel is suitably used in various components of a gas turbine.
摘要翻译：本发明是耐热马氏体钢，其含有0.05〜0.30％C，不大于0.50％Si，不大于0.60％Mn，8.0〜13.0％Cr，0.5〜3.0％Ni，1.0〜3.0％ Mo，0.1〜1.5％W，0.5〜4％Co，0.05〜0.35％V，0.02〜0.30％，1种或2种选自Nb和Ta的元素和0.02〜0.10％N，其中a Ni量和Co量之间的差的平方值，Ni量不大于通过点A（1.0,2.7％）和点B（2.5,1.0％）绘制的直线所确定的值，）在附图中所示的正交坐标中图。 2表示上述平方值与Ni量之间的关系，Mo /（Mo + 0.5W）的量比不小于0.5。耐热钢适用于燃气轮机的各种部件。

6. 发明申请

US20100028155A1 Turbine Rotor 审中-公开
标题翻译：涡轮转子
公开(公告)号：US20100028155A1
公开(公告)日：2010-02-04
申请号：US12509537
申请日：2009-07-27
申请人： Eiji Nishioka , Masahiko Arai , Ryusuke Hiruta , Hiroyuki Doi
发明人： Eiji Nishioka , Masahiko Arai , Ryusuke Hiruta , Hiroyuki Doi
IPC分类号： F01D5/14
CPC分类号： F01D5/063 , B23K31/02 , B23K33/004 , F05D2230/232
摘要： An object of the present invention is to provide a turbine rotor with high reliability of strength. The turbine rotor includes two rotors which are connected at the butted portions of the rotors via a weld without forming penetration beads. Specifically, the turbine rotor includes a rotor for low pressure, a rotor for high pressure, and a center hole formed at a center portion of the turbine rotor. The rotors for low pressure and for high pressure are integrated together into a steam turbine rotor by welding respective ends of the rotors to each other. The respective ends of the rotors are in contact with each other via at least two contact faces in a radial direction and an axial direction of the turbine rotor. At least parts of the respective ends are welded together.
摘要翻译：本发明的目的是提供一种高可靠性的涡轮转子。涡轮转子包括两个转子，其通过焊接在转子的对接部分处连接而不形成穿透珠。具体而言，涡轮转子包括低压用转子，高压用转子和形成在涡轮转子的中心部的中心孔。通过将转子的相应端部彼此焊接，用于低压和高压的转子被集成在一起成为蒸汽轮机转子。转子的相应端部经由涡轮机转子的径向方向和轴向方向上的至少两个接触面彼此接触。各端的至少部分焊接在一起。

7. 发明授权

US07632066B2 Pipe for steam turbine, manufacturing process of same, main stream pipe and reheat pipe for steam turbine, and steam turbine power plant using those pipes 有权
标题翻译：蒸汽轮机管道，制造工艺相同，蒸汽轮机主流管道和再热管，以及使用这些管道的蒸汽轮机发电厂
公开(公告)号：US07632066B2
公开(公告)日：2009-12-15
申请号：US11480978
申请日：2006-07-06
申请人： Masahiko Arai , Hirotsugu Kawanaka , Hiroyuki Doi , Kenichi Murata , Hajime Toriya
发明人： Masahiko Arai , Hirotsugu Kawanaka , Hiroyuki Doi , Kenichi Murata , Hajime Toriya
IPC分类号： F01D25/00
CPC分类号： B22D13/02 , C22C38/001 , C22C38/04 , C22C38/44 , C22C38/46 , C22C38/48 , F05B2260/60
摘要： A pipe for a steam turbine is formed of a centrifugal casting material to achieve resistance against higher temperatures and improve reliability of the pipe by employing, as a pipe material, a centrifugal casting material normalized to contain uniform and finer crystal grains. The centrifugal casting material is made of steel having a columnar structure in the radial direction with the crystal grain size number of 5 or more in a plane perpendicular to the radial direction. The steel includes 0.05-0.5% by mass C, not more than 1.0% Si, 0.05-1.5% Mn, 0.01-2.5% Ni, 8.0-13.0% Cr, 0.05-2.5% Mo, not more than 3.0% W, 0.05-0.35% V, 0.01-0.5% Nb, not more than 5% Co, 0.01-0.1% N, not more than 0.03% B, and not more than 0.05% Al.
摘要翻译：用于汽轮机的管由离心铸造材料形成，以通过采用归一化为含有均匀和更细晶粒的离心铸造材料作为管材料来实现耐高温性和提高管的可靠性。离心铸造材料由垂直于径向方向的平面中的晶粒尺寸数为5以上的在径向具有柱状结构的钢制成。该钢含有0.05〜0.5质量％的C，不大于1.0％的Si，0.05-1.5％的Mn，0.01-2.5％的Ni，8.0-13.0％的Cr，0.05-2.5％的Mo，不大于3.0％的W，0.05 -0.35％V，0.01-0.5％Nb，不大于5％Co，0.01-0.1％N，不大于0.03％B和不大于0.05％Al。

8. 发明授权

US08747733B2 Precipitation hardenable martensitic stainless steel and steam turbine blade using the same 有权
标题翻译：沉淀硬化马氏体不锈钢和蒸汽轮机叶片使用相同
公开(公告)号：US08747733B2
公开(公告)日：2014-06-10
申请号：US13086416
申请日：2011-04-14
申请人： Shinji Oikawa , Hideo Yoda , Masahiko Arai , Hiroyuki Doi
发明人： Shinji Oikawa , Hideo Yoda , Masahiko Arai , Hiroyuki Doi
IPC分类号： C22C38/44 , C22C38/46 , C22C38/48 , C22C38/50 , F01D5/14
CPC分类号： C22C38/06 , C21D6/004 , C21D6/02 , C21D9/0068 , C21D2211/008 , C22C38/04 , C22C38/44 , C22C38/46 , C22C38/48 , C22C38/50 , F01D5/286 , F05D2260/95 , F05D2300/171
摘要： A precipitation hardenable martensitic stainless steel excellent in the stability of martensite, having the high strength, high toughness and high corrosion resistance is provided. The precipitation hardenable martensitic stainless steel contains at a mass rate, C: 0.05-0.10%, Cr: 12.0-13.0%, Ni: 6.0-7.0%, Mo: 1.0-2.0%, Si: 0.01-0.05%, Mn: 0.06-1.0%, Nb: 0.3-0.5%, V: 0.3-0.5%, Ti: 1.5-2.5%, Al: 1.0-2.3%, and the remainder consisting of Fe and an unavoidable impurity.
摘要翻译：提供了具有高强度，高韧性和高耐腐蚀性的马氏体稳定性优异的析出硬化性马氏体系不锈钢。沉淀硬化马氏体系不锈钢的质量比为C：0.05〜0.10％，Cr：12.0〜13.0％，Ni：6.0〜7.0％，Mo：1.0〜2.0％，Si：0.01-0.05％，Mn：0.06 -1.0％，Nb：0.3〜0.5％，V：0.3〜0.5％，Ti：1.5〜2.5％，Al：1.0〜2.3％，余量由Fe和不可避免的杂质构成。

9. 发明申请

US20070014671A1 Pipe for steam turbine, manufacturing process of same, main steam pipe and reheat pipe for steam turbine, and steam turbine power plant using those pipes 有权
标题翻译：蒸汽轮机管道，制造工艺相同，蒸汽轮机主蒸汽管道和再热管道，以及使用这些管道的蒸汽轮机发电厂
公开(公告)号：US20070014671A1
公开(公告)日：2007-01-18
申请号：US11480978
申请日：2006-07-06
申请人： Masahiko Arai , Hirotsugu Kawanaka , Hiroyuki Doi , Kenichi Murata , Hajime Toriya
发明人： Masahiko Arai , Hirotsugu Kawanaka , Hiroyuki Doi , Kenichi Murata , Hajime Toriya
IPC分类号： F03B3/12
CPC分类号： B22D13/02 , C22C38/001 , C22C38/04 , C22C38/44 , C22C38/46 , C22C38/48 , F05B2260/60
摘要： A pipe for a steam turbine is formed of a centrifugal casting material to achieve resistance against higher temperatures and improve reliability of the pipe by employing, as a pipe material, a centrifugal casting material normalized to contain uniform and finer crystal grains. The centrifugal casting material is made of steel having a columnar structure in the radial direction with the crystal grain size number of 5 or more in a plane perpendicular to the radial direction. The steel includes 0.05-0.5% by mass C, not more than 1.0% Si, 0.05-1.5% Mn, 0.01-2.5% Ni, 8.0-13.0% Cr, 0.05-2.5% Mo, not more than 3.0% W, 0.05-0.35% V, 0.01-0.5% Nb, not more than 5% Co, 0.01-0.1% N, not more than 0.03% B, and not more than 0.05% Al.
摘要翻译：用于汽轮机的管由离心铸造材料形成，以通过采用归一化为含有均匀和更细晶粒的离心铸造材料作为管材料来实现耐高温性和提高管的可靠性。离心铸造材料由垂直于径向方向的平面中的晶粒尺寸数为5以上的在径向具有柱状结构的钢制成。该钢含有0.05〜0.5质量％的C，不大于1.0％的Si，0.05-1.5％的Mn，0.01-2.5％的Ni，8.0-13.0％的Cr，0.05-2.5％的Mo，不大于3.0％的W，0.05 -0.35％V，0.01-0.5％Nb，不大于5％Co，0.01-0.1％N，不大于0.03％B和不大于0.05％Al。

10. 发明申请

US20120308772A1 STEAM TURBINE MEMBER 审中-公开
标题翻译：蒸汽涡轮机会员
公开(公告)号：US20120308772A1
公开(公告)日：2012-12-06
申请号：US13577757
申请日：2011-02-17
申请人： Hiroshi Haruyama , Masahiko Arai , Hiroyuki Doi , Takeshi Izumi
发明人： Hiroshi Haruyama , Masahiko Arai , Hiroyuki Doi , Takeshi Izumi
IPC分类号： B32B15/04 , F01D5/28
CPC分类号： C23C8/14 , C22C38/02 , C22C38/04 , C22C38/18 , C22C38/44 , C22C38/46 , C23C8/18 , C23C30/00 , F01D17/18 , F01D25/007 , Y10T428/24355 , Y10T428/265
摘要： An object is to provide a steam turbine member having excellent oxidation resistance at low cost without using an alloy coating such as a thermally sprayed or sintered body. The steam turbine member includes a substrate made of stainless steel containing Fe as a main component, 8 to 15 wt % of Cr, and 0.1 to 1.0 wt % of Mn. The steam turbine member has, on a surface of the substrate, an oxide film made of an oxide of a constituent element of the substrate. It is preferable that the oxide film thickness is 1 μm or less. It is also preferable that the oxide film has a surface roughness Ra of 1.6 a or less.
摘要翻译：本发明的目的是提供一种在不使用诸如热喷涂或烧结体的合金涂层的情况下以低成本具有优异的耐氧化性的汽轮机构件。蒸汽轮机构件包括由不锈钢制成的基材，其含有Fe作为主要成分，8〜15重量％的Cr和0.1〜1.0重量％的Mn。蒸汽轮机构件在基板的表面上具有由基板的构成元件的氧化物构成的氧化膜。氧化膜厚度优选为1μm以下。另外，优选氧化膜的表面粗糙度Ra为1.6μm以下。

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