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16 条记录 (耗时 0.031 秒)

    High-strength austenitic steel
    1.
    发明授权
    High-strength austenitic steel 失效
    高强度奥氏体钢

    公开(公告)号：US4581067A

    公开(公告)日：1986-04-08

    申请号：US547573

    申请日：1983-11-01

    申请人： Katsumi Iijima ,  Norio Yamada ,  Seishin Kirihara ,  Masao Shiga ,  Masayuki Sukekawa ,  Takatoshi Yoshioka ,  Kiyoshi Hiyama

    发明人： Katsumi Iijima ,  Norio Yamada ,  Seishin Kirihara ,  Masao Shiga ,  Masayuki Sukekawa ,  Takatoshi Yoshioka ,  Kiyoshi Hiyama

    IPC分类号： C22C38/00 ,  C22C38/48 ,  C22C38/58 ,  F01D1/00 ,  F01D17/10 ,  F01D25/24 ,  C22C38/06

    CPC分类号： C22C38/001 ,  C22C38/58

    摘要： A high-strength austenitic steel having a fully austenite structure and consisting essentially of 0.02 to 0.15 wt % of C, not greater than 1.5 wt % of Si, not greater than 2.5 wt % of Mn, 8 to 20 wt % of Ni, 13 to 25 wt % of Cr, 0.02 to 0.25 wt % of Al, not greater than 0.1 wt % of N, at least one of 0.001 to 0.01 wt % of B, 0.02 to 0.5 wt % of Nb, 0.01 to 0.2 wt % of Ti and 0.02 to 0.6 wt % of V and the balance substantialy Fe, with the weight ratio (Al/N) ranging between 1 and 4.5. This steel is suitable for use as the material of, for example, inner casing of steam turbine, valve body incorporated in the steam turbine, rotor shaft, and chemical equipment such as reaction pipe and vessel for styrene monomer producing facility.

    摘要翻译： 具有完全奥氏体组织的高强奥氏体钢，主要由C：0.02〜0.15重量％，Si：1.5重量％以下，Mn：2.5重量％以下，Ni：8〜20重量％，13 至25重量％的Cr，0.02-0.25重量％的Al，不大于0.1重量％的N，0.001至0.01重量％的B，0.02至0.5重量％的Nb，0.01至0.2重量％的Nb， Ti和0.02〜0.6重量％的V，余量基本上为Fe，重量比（Al / N）为1〜4.5。 该钢适用于汽轮机的内壳，汽轮机内的阀体，转子轴，苯乙烯单体生产设备的反应管，容器等的化学设备。

    Heat resisting steel
    3.
    发明授权
    Heat resisting steel 失效
    耐热钢

    公开(公告)号：US4477280A

    公开(公告)日：1984-10-16

    申请号：US452292

    申请日：1982-12-22

    申请人： Masao Shiga ,  Seishin Kirihara ,  Mitsuo Kuriyama ,  Takatoshi Yoshioka ,  Ryoichi Sasaki

    发明人： Masao Shiga ,  Seishin Kirihara ,  Mitsuo Kuriyama ,  Takatoshi Yoshioka ,  Ryoichi Sasaki

    IPC分类号： C22C38/00 ,  C22C38/22 ,  C22C38/48 ,  F01D5/02 ,  F01D5/28 ,  C22C38/06

    CPC分类号： C22C38/22

    摘要： A heat resisting steel suitable for use as material of steam turbine parts. The steel has a substantially whole tempered martensite structure and consisting essentially of, by weight, 8 to 13% of Cr, 0.5 to 2% of Mo, 0.02 to 0.5% of V, 0.02 to 0.15% of Nb, 0.025 to 0.1% of N, 0.05 to 0.25% of C, not greater than 0.6% of Si, not greater than 1.5% of Mn, not greater than 1.5% of Ni, 0.0005 to 0.02% of Al, 0.1 to 0.5% of W and the balance substantially Fe, the ratio W/Al between W content and Al content ranging between 10 and 110.

    摘要翻译： 适用于汽轮机部件材料的耐热钢。 该钢具有基本上整个回火的马氏体结构，并且基本上由以下组成：Cr：8〜13％，Mo：0.5〜2％，V：0.02〜0.5％，Nb：0.02〜0.15％，Nb：0.02〜 N，0.05〜0.25％的C，不大于0.6％的Si，不大于Mn的1.5％，不大于1.5的Ni，0.0005至0.02％的Al，0.1至0.5％的W，余量基本上 Fe，W含量和Al含量之间的W / Al比在10和110之间。

    Rotor shaft
    4.
    发明授权
    Rotor shaft 失效
    转子轴

    公开(公告)号：US4426162A

    公开(公告)日：1984-01-17

    申请号：US326351

    申请日：1981-12-01

    申请人： Keiichi Tsuchiya ,  Katsukuni Hisano ,  Toshimi Tan ,  Masahiro Kobayashi ,  Kei Kobayashi ,  Kazuhiko Ueda ,  Seishin Kirihara ,  Takatoshi Yoshioka ,  Masao Shiga

    发明人： Keiichi Tsuchiya ,  Katsukuni Hisano ,  Toshimi Tan ,  Masahiro Kobayashi ,  Kei Kobayashi ,  Kazuhiko Ueda ,  Seishin Kirihara ,  Takatoshi Yoshioka ,  Masao Shiga

    IPC分类号： F01D25/16 ,  F16C3/02 ,  F16C33/12 ,  F16C33/14

    CPC分类号： F16C3/02 ,  F01D25/16

    摘要： A rotor shaft suitable for use as the rotor shaft of a steam turbine. The rotor shaft has a rotor shaft portion made of a Cr alloy steel having martensite structure and containing 8 to 13% Cr. The rotor shaft body is provided with at least one journal portion at which the rotor shaft is rotatably supported by a bearing. The rotor shaft further has a sleeve fitted around each journal portion. The sleeve is divided in the circumferential direction into a plurality of segments which are assembled together by welding or fitting into the sleeve having a circular cross-section. Due to the provision of the sleeve around the journal portion, the rotor shaft made of Cr alloy steel can have improved bearing properties.

    摘要翻译： 适用于蒸汽轮机的转子轴的转子轴。 转子轴具有由具有马氏体结构且含有8〜13％的Cr的Cr合金钢制成的转子轴部。 转子轴体设置有至少一个轴颈部分，转子轴由轴承可转动地支撑在轴颈部分上。 转子轴还具有围绕每个轴颈部分安装的套筒。 套筒沿圆周方向分成多个段，通过焊接或装配到具有圆形横截面的套筒中组装在一起。 由于套筒围绕轴颈部分设置，所以由Cr合金钢制成的转子轴可具有改善的轴承性能。

    Steam-turbine power plant and steam turbine
    6.
    发明授权
    Steam-turbine power plant and steam turbine 失效
    蒸汽轮机发电厂和汽轮机

    公开(公告)号：US6123504A

    公开(公告)日：2000-09-26

    申请号：US391945

    申请日：1995-02-21

    申请人： Masao Shiga ,  Ryo Hiraga ,  Takeshi Onoda ,  Nobuo Shimizu ,  Norio Yamada ,  Mitsuo Kuriyama ,  Kishio Hidaka ,  Shigeyoshi Nakamura ,  Yutaka Fukui ,  Toshio Fujita

    发明人： Masao Shiga ,  Ryo Hiraga ,  Takeshi Onoda ,  Nobuo Shimizu ,  Norio Yamada ,  Mitsuo Kuriyama ,  Kishio Hidaka ,  Shigeyoshi Nakamura ,  Yutaka Fukui ,  Toshio Fujita

    IPC分类号： F01D5/02 ,  B23K35/00 ,  B23K35/30 ,  C21D9/38 ,  C22C38/00 ,  F01D5/14 ,  F01D5/28 ,  F01D5/30 ,  F01D25/00 ,  F01K7/22

    CPC分类号： F01D5/28 ,  B23K35/308 ,  C21D9/38 ,  B23K35/004 ,  C21D2211/005

    摘要： A steam turbine includes a rotor shaft, movable blades assembled on the rotor shaft, fixed blades for guiding inflow of steam to the moving blades, and an inner casing for holding the fixed blades. The rotor shaft and at least a first stage of the movable blades are made of high-strength martensitic steel comprising 0.05-0.20(%) of C, at most 0.15(%) of Si, 0.3-0.7(%) of Mn, 9.5-13(%) of Cr, 0.3-0.7(%) of Ni, 0.05-0.35(%) of V, 0.02-0.15(%) of Nb, 0.01-0.06(%) of N, 0.05-0.5(%) of Mo, 1.0-3.5(%) of W, 2-10(%) of Co and 0.0005-0.03(%) of B and at least 78(%) of Fe (the percentages being given in terms of weight). The inner casings is made of martensitic cast steel comprising 0.06-0.16(%) of C, at most 0.5(%) of Si, at most 1(%) of Mn, 0.2-1.0(%) of Ni, 8-12(%) of Cr, 0.05-0.35(%) of V, 0.01-0.15(%) of Nb, 0.01-0.1(%) of N, at most 1.5% of Mo, 1-4(%) of W and 0.0005-0.03(%) of B and at least 85(%) of Fe (the percentages being given in terms of weight). The rotor shaft has a length of at least 5 (m) and has a minimum diameter of at least 600 (mm) at a portion where the fixed blades are assembled. The first stage of said moving blades has a length of at least 35 (mm) at a blade portion thereof.

    摘要翻译： 蒸汽涡轮机包括转子轴，组装在转子轴上的可动叶片，用于引导蒸汽流入活动叶片的固定叶片以及用于保持固定叶片的内壳体。 转子轴和可动刀片的至少第一级由高强度马氏体钢制成，包括0.05-0.20（％）C，最多0.15（％）的Si，0.3-0.7（％）的Mn，9.5 -13（％）Cr，0.3-0.7（％）Ni，0.05-0.35（％）V，0.02-0.15（％）Nb，0.01-0.06（％）N，0.05-0.5（％） 的Mo，1.0-3.5（％）W，2-10（％）Co和0.0005-0.03（％）B和至少78（％）Fe（百分比以重量计）。 内壳由马氏体铸钢制成，包括C：0.06-0.16（％），最多0.5（％）Si，最多1（％）Mn，0.2-1.0（％）Ni，8-12（ ％），V 0.05〜0.35（％），Nb：0.01-0.15（％），N：0.01-0.1（％），Mo：1.5％以下，W：1-4（％）：0.0005〜 B的0.03（％）和Fe的至少85（％）（以重量计）。 转子轴具有至少5（m）的长度，并且在组装固定叶片的部分处具有至少600（mm）的最小直径。 所述活动叶片的第一阶段在叶片部分处具有至少35（mm）的长度。