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。

公开(公告)号：US5964091A

公开(公告)日：1999-10-12

申请号：US679398

申请日：1996-07-09

申请人： Yutaka Fukui ,  Tetsuo Kashimura ,  Hideyo Kodama ,  Hiroyuki Doi ,  Ryo Hiraga

发明人： Yutaka Fukui ,  Tetsuo Kashimura ,  Hideyo Kodama ,  Hiroyuki Doi ,  Ryo Hiraga

IPC分类号： C22C38/10 ,  F01D5/28 ,  F02C6/18 ,  F23R3/00 ,  F02C1/00

CPC分类号： F23R3/00 ,  C22C38/105 ,  F01D5/288 ,  F02C6/18 ,  F23C2900/03001 ,  Y02T50/671 ,  Y10S60/902

摘要： A cylindrical gas turbine combustor, burning injected fuel and guiding the combustion gas to turbine nozzles, includes a cylindrical portion such as a combustor liner and a transition piece, exposed to the combustion gas, which is made of austenitic Fe base casting alloy, Ni base casting alloy or Co base casting alloy.

摘要翻译： 燃烧喷射燃料并将燃烧气体引导到涡轮喷嘴的圆柱形燃气轮机燃烧器包括暴露于由奥氏体Fe基铸造合金制成的燃烧气体的燃烧器衬套和过渡件的圆柱形部分，Ni基 铸造合金或Co基铸造合金。

公开(公告)号：US5370497A

公开(公告)日：1994-12-06

申请号：US965699

申请日：1992-10-23

申请人： Hiroyuki Doi ,  Ken Yasuda ,  Tetsuo Kashimura ,  Yutaka Fukui

发明人： Hiroyuki Doi ,  Ken Yasuda ,  Tetsuo Kashimura ,  Yutaka Fukui

IPC分类号： C22C19/05 ,  C22C19/07 ,  C22C30/00 ,  F01D5/18 ,  F01D9/02 ,  F02C6/00 ,  F01D1/02

CPC分类号： C22C19/056 ,  C22C19/055 ,  C22C19/07 ,  C22C30/00 ,  F01D5/186 ,  F01D5/187 ,  F02C6/00 ,  F05D2260/201 ,  F05D2260/202 ,  Y10S60/909

摘要： A Ni-base superalloy consisting essentially of, by weight: 0.05 to 0.20% C, 20 to 25% Co, 15 to 25% Cr, 1.0 to 3.0% Al, 1.0 to 3.0% Ti, 1.0 to 3.0% Nb, 5 to 10% W, and at least 42.5% Ni, the combination of the [Al+Ti] and tungsten contents being determined as shown in FIG. 5. This superalloy has a high thermal-fatigue resistance, a great high-temperature strength, particularly, a great creep rupture strength, and a good weldability. The superalloy is used to form gas turbine nozzles, which are employed in a gas turbine. Using such a gas turbine, a combined power generating system is built.

摘要翻译： 一种Ni基超合金，其主要由以重量计：C：0.05〜0.20％，Co：20〜25％，Cr：15〜25％，Al：1.0〜3.0％，Ti：1.0〜3.0％，Nb：1.0〜 10％W和至少42.5％的Ni，[Al + Ti]和钨含量的组合如图6所示确定。 该超合金具有高耐热疲劳性，高温强度，特别是大的蠕变断裂强度和良好的可焊性。 超级合金用于形成用于燃气轮机中的燃气轮机喷嘴。 使用这种燃气轮机，构建组合发电系统。

公开(公告)号：US5480283A

公开(公告)日：1996-01-02

申请号：US246624

申请日：1994-05-20

申请人： Hiroyuki Doi ,  Ken Yasuda ,  Tetsuo Kashimura ,  Yutaka Fukui

发明人： Hiroyuki Doi ,  Ken Yasuda ,  Tetsuo Kashimura ,  Yutaka Fukui

IPC分类号： C22C19/05 ,  C22C19/07 ,  C22C30/00 ,  F01D5/18 ,  F02C6/00 ,  F01D1/02

CPC分类号： C22C19/07 ,  C22C19/055 ,  C22C19/056 ,  C22C30/00 ,  F01D5/186 ,  F01D5/187 ,  F02C6/00 ,  F05D2260/201 ,  F05D2260/202

摘要： A Ni-base superalloy consisting essentially of, by weight: 0.05 to 0.20% C, 20 to 25% Co, 15 to 25% Cr, 1.0 to 3.0% Al, 1.0 to 3.0% Ti, 1.0 to 3.0% Nb, 5 to 10% W, and at least 55% Ni, the combination of the [Al+Ti] and tungsten contents being determined as shown in FIG. 5. This superalloy has a high thermal-fatigue resistance, a great high-temperature strength, particularly, a great creep rupture strength, and a good weldability. The superalloy is used to form gas turbine nozzles, which are employed in a gas turbine. Using such a gas turbine, a combined power generating system is built.

摘要翻译： 一种Ni基超合金，其主要由以重量计：C：0.05〜0.20％，Co：20〜25％，Cr：15〜25％，Al：1.0〜3.0％，Ti：1.0〜3.0％，Nb：1.0〜 10％W和至少55％的Ni，[Al + Ti]和钨含量的组合如图1所示确定。 该超合金具有高耐热疲劳性，高温强度，特别是大的蠕变断裂强度和良好的可焊性。 超级合金用于形成用于燃气轮机中的燃气轮机喷嘴。 使用这种燃气轮机，构建组合发电系统。

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。

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。

公开(公告)号：US09873930B2

公开(公告)日：2018-01-23

申请号：US13292126

申请日：2011-11-09

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 ,  C22C38/18 ,  C21D6/00 ,  C21D6/02 ,  C21D9/00 ,  C22C38/40 ,  C22C38/46 ,  C22C38/48 ,  C22C38/50 ,  C22C38/52 ,  C22C38/60

CPC分类号： C22C38/18 ,  C21D6/00 ,  C21D6/004 ,  C21D6/02 ,  C21D9/0068 ,  C21D2211/008 ,  C22C38/40 ,  C22C38/44 ,  C22C38/46 ,  C22C38/48 ,  C22C38/50 ,  C22C38/52 ,  C22C38/60

摘要： It is an objective of the present invention to provide a precipitation-hardening martensitic stainless steel having well-balanced properties of high mechanical strength, high toughness and good corrosion resistance properties. There is provided a precipitation-hardening martensitic stainless steel comprising: 0.10 mass % or less of C; 13.0 to 15.0 mass % of Cr; 7.0 to 10.0 mass % of Ni; 2.0 to 3.0 mass % of Mo; 0.5 to 2.5 mass % of Ti; 0.5 to 2.5 mass % of Al; 0.5 mass % or less of Si; 0.1 to 1.0 mass % of Mn; and the balance including Fe and incidental impurities, in which the mass % content of the Ti (represented by [Ti content]), the mass % content of the Al (represented by [Al content]) and the mass % content of the C (represented by [C content]) satisfy relationships of “0.5≦[Ti content]≦2.5” and “0.5≦[Al content]+2[C content]≦2.7”.

公开(公告)号：US09062362B2

公开(公告)日：2015-06-23

申请号：US13495386

申请日：2012-06-13

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： F01D5/28 ,  C22C38/50 ,  C22C38/44

CPC分类号： C22C38/50 ,  C22C38/44

摘要： As a precipitate hardening stainless steel has excellent structure stability, strength, toughness, and corrosion resistance, requires no sub-zero treating and is excellent in terms of productivity, a long blade for a steam turbine uses the same. The following are provided: a precipitate hardening stainless steel, which comprises C at 0.05 mass % or less, N at 0.05 mass % or less, Cr at 10.0 mass % to 14.0 mass %, Ni at 8.5 mass % to 11.5 mass %, Mo at 0.5 mass % to 3.0 mass %, Ti at 1.5 mass % to 2.0 mass %, Al at 0.25 mass % to 1.00 mass %, Si at 0.5 mass % or less, and Mn at 1.0 mass % or less, and the balance is composed of Fe and inevitable impurities. The long blade for a steam turbine is composed of this precipitate hardening stainless steel.

摘要翻译： 作为沉淀硬化不锈钢具有优异的结构稳定性，强度，韧性和耐腐蚀性，不需要次零处理，并且在生产率方面优异，蒸汽轮机的长叶片使用它。 提供以下：沉淀硬化不锈钢，其含有0.05质量％以下的C，0.05质量％以下的N，10.0质量％〜14.0质量％的Cr，8.5质量％〜11.5质量％的Ni，Mo 1.5质量％至2.0质量％的Ti，0.5质量％至3.0质量％的Al，0.25质量％至1.00质量％的Al，0.5质量％以下的Si，1.0质量％以下的Mn，余量为 由Fe和不可避免的杂质组成。 蒸汽轮机的长叶片由这种沉淀硬化不锈钢组成。

公开(公告)号：US20090068052A1

公开(公告)日：2009-03-12

申请号：US12153552

申请日：2008-05-21

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： C22C38/52 ,  C22C38/44

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+0.5W) 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， ）在图1的附图中示出。 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。

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。