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34 条记录 (耗时 0.037 秒)

    Turbine rotor
    6.
    发明授权
    Turbine rotor 有权
    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。

    Method for assessing remaining lifespan of bolt used at high temperatures
    7.
    发明授权
    Method for assessing remaining lifespan of bolt used at high temperatures 有权
    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。

    TURBINE ROTOR
    8.
    发明申请
    TURBINE ROTOR 有权
    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。

    High-strength heat resisting cast steel, method of producing the steel, and applications of the steel
    9.
    发明申请
    High-strength heat resisting cast steel, method of producing the steel, and applications of the steel 审中-公开
    高强度耐热铸钢，钢的生产方法和钢的应用

    公开(公告)号：US20070071599A1

    公开(公告)日：2007-03-29

    申请号：US11528439

    申请日：2006-09-28

    申请人： Masahiko Arai ,  Hirotsugu Kawanaka ,  Hideo Yoda

    发明人： Masahiko Arai ,  Hirotsugu Kawanaka ,  Hideo Yoda

    IPC分类号： F04D29/44

    CPC分类号： C22C38/02 ,  C22C38/04 ,  C22C38/44 ,  C22C38/46 ,  C22C38/52

    摘要： A high-strength heat resisting cast steel which has high creep rupture strength at temperatures of 620° C. or above, high toughness, and good weldability. A method of producing the steel, a steam turbine casing, a main steam valve casing, and a steam control valve casing, each casing being made of that steel, as well as a steam turbine power plant using those components are also provided. The high-strength heat resisting cast steel contains 0.06-0.16% by mass of C, 0.1-1% of Si, 0.1-1% of Mn, 8-12% of Cr, 0.1-1.0% of Ni, 0.7% or less of Mo, 1.9-3.0% of W, 0.05-0.3% of V, 0.01-0.15% of one or more of Nb, Ta and Zr in total, 0.1-2% of Co, 0.01-0.08% of N, and 0.0005-0.01% of B, the balance being Fe and unavoidable impurities.

    摘要翻译： 高温耐热铸钢，其温度为620℃以上，蠕变断裂强度高，韧性高，焊接性好。 还提供了一种制造钢的方法，蒸汽轮机壳体，主蒸汽阀壳体和蒸汽控制阀壳体，每个壳体由该钢制成，以及使用这些部件的蒸汽轮机发电厂。 高强度耐热铸钢含有0.06-0.16质量％的C，0.1-1％的Si，0.1-1％的Mn，8-12％的Cr，0.1-1.0％的Ni，0.7％以下的 的Mo，1.9〜3.0％的V，0.05〜0.3％的V，0.01-0.15％的Nb，Ta和Zr中的一种或多种，​​Co：0.1〜2％，N：0.01-0.08％，N：0.0005 -0.01％的B，余量为Fe和不可避免的杂质。

    Heat resisting steel, gas turbine using the steel, and components thereof
    10.
    发明申请
    Heat resisting steel, gas turbine using the steel, and components thereof 审中-公开
    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。