公开(公告)号：US4505232A

公开(公告)日：1985-03-19

申请号：US593931

申请日：1984-03-27

申请人： Kenichi Usami ,  Seishin Kirihara ,  Hiroyuki Doi ,  Choichi Asano ,  Masayuki Sukekawa ,  Yasuhide Sakaguchi

发明人： Kenichi Usami ,  Seishin Kirihara ,  Hiroyuki Doi ,  Choichi Asano ,  Masayuki Sukekawa ,  Yasuhide Sakaguchi

IPC分类号： B32B15/01 ,  C22C38/00 ,  C22C38/54 ,  F22B37/04 ,  F22B37/06

CPC分类号： B32B15/01 ,  F22B37/04 ,  Y10S122/13 ,  Y10S165/905 ,  Y10T428/12965

摘要： A boiler tube having a double-tube structure constituted by an inner tube and an outer tube integrated with each other. The inner tube is made of an alloy consisting essentially of, by weight, 0.02 to 0.15% of C, 0.5 to 3.5% of Si, not greater than 2% of Mn, 25 to 40% of Ni, 20.5 to 27% of Cr, 0.5 to 3% of Mo, not greater than 1% of Nb and the balance Fe and having a substantially fully austenite structure. The outer tube is made of an alloy consisting essentially of, by weight, 0.02 to 0.2% of C, not greater than 3.5% of Si, not greater than 2% of Mn, 33 to 45% of Ni, 30 to 40% of Cr and the balance Fe and having a substantially fully austenite structure. The inner tube made of the alloy having the composition specified above exhibits a high resistance to steam oxidation without any reduction in high-temperature strength even at elevated steam temperature, while the outer tube made of the alloy having the composition specified above exhibits a superior resistance to corrosion by coal combustion gas.

摘要翻译： 一种具有由内管和彼此一体化的外管构成的双管结构的锅炉管。 内管由以下组成的合金制成，该合金主要由C：0.02〜0.15％，Si：0.5〜3.5％，Mn：2％以下，Ni：25〜40％，Cr：20.5〜27％ ，0.5〜3％的Mo，不大于1％的Nb，余量为Fe，并具有基本上完全奥氏体的结构。 外管由以下组成的合金制成，该合金主要由以下组成：C：0.02〜0.2％，Si：3.5％以下，Mn：2％以下，Ni：33〜45％，Ni：30〜40％ Cr和余量Fe并具有基本上完全奥氏体的结构。 由具有上述组成的合金制成的内管即使在升高的蒸汽温度下也具有高的耐蒸汽氧化性，而不会降低高温强度，而由具有上述组成的合金制成的外管显示出优异的电阻 由煤燃烧气体腐蚀。

公开(公告)号：US4802894A

公开(公告)日：1989-02-07

申请号：US2285

申请日：1987-01-12

申请人： Kenichi Usami ,  Seishin Kirihara ,  Tadaoki Morimoto ,  Hiroyuki Doi ,  Michiya Okada

发明人： Kenichi Usami ,  Seishin Kirihara ,  Tadaoki Morimoto ,  Hiroyuki Doi ,  Michiya Okada

IPC分类号： C22C38/00 ,  C22C38/40 ,  C22C38/50 ,  C10J3/76

CPC分类号： C22C38/40 ,  Y02E20/16 ,  Y10S148/909

摘要： A structural member to be subjected to a hot gas atmosphere produced through reaction between coal and a gasifier such as oxygen, air, steam or hydrogen, in a gasification furnace for example. The structural member is made of an anti-sulfur attack Cr-Ni-Al-Si alloy steel which has a composition essentially consisting of, by weight, 0.03 to 0.3% of C, 1 to 10% of Si, not greater than 2.0% of Mn, 8 to 14% of Ni, 16 to 20% of Cr, 0.5 to 10% of Al and the balance not less than 50% of Fe.

摘要翻译： 在气化炉中，通过煤和气化器如氧气，空气，蒸汽或氢气之间的反应产生的热气体气氛的结构构件。 该结构件由抗硫侵蚀Cr-Ni-Al-Si合金钢制成，该组合物的组成基本上由C的0.03至0.3％，Si的1至10％，不大于2.0％ 的Mn，8〜14％的Ni，16〜20％的Cr，0.5〜10％的Al，余量不低于Fe的50％。

公开(公告)号：US08883072B2

公开(公告)日：2014-11-11

申请号：US12551884

申请日：2009-09-01

申请人： Jun Sato ,  Shinya Imano ,  Hiroyuki Doi

发明人： Jun Sato ,  Shinya Imano ,  Hiroyuki Doi

IPC分类号： C21D1/18 ,  F01D5/06 ,  B23K35/30 ,  C22F1/10 ,  B23K35/00 ,  C22C19/05 ,  C22C38/00 ,  C22C30/00

CPC分类号： C22C19/055 ,  B23K35/004 ,  B23K35/304 ,  B23K2101/001 ,  C22C19/056 ,  C22F1/10 ,  F01D5/063 ,  Y02T50/671

摘要： The present invention provides, in a γ′ phase precipitation strengthening type Ni-base alloy, an alloy excellent in heat treatment capability and weldability and suitable for joint with a ferritic steel. Further, the present invention provides a welded turbine rotor having the strength, ductility, and toughness simultaneously over the whole welded structure when a precipitation strengthening type Ni-base alloy having a heatproof temperature of 675° C. or higher is joined to a ferritic steel.A Ni-base alloy according to the present invention contains cobalt, chromium, aluminum, carbon, boron, and at least either tungsten or molybdenum with the remainder being nickel and inevitable impurities, having an alloy composition including 12 to 25 percent by mass of Co, 10 to 18 percent by mass of Cr, 2.0 to 3.6 percent by mass of Al, 0.01 to 0.15 percent by mass of C, 0.001 to 0.03 percent by mass of B, the total amount of tungsten and molybdenum being 5.0 to 10 percent by mass.A welded turbine rotor is structured by joining or building up by welding a second Ni-base alloy to a first Ni-base alloy that a γ′ phase solid solution temperature thereof is 900° C. or higher and a creep fracture strength at 675° C. is 100 MPa or more, and further welding a ferritic steel to the second Ni-base alloy. The second Ni-base alloy is a γ′ phase (Ni3Al) precipitation strengthening type Ni-base alloy, a γ′ phase solid solution temperature thereof is 850° C. or lower.

摘要翻译： 本发明在γ-相析出强化型Ni基合金中提供了热处理能力和焊接性优异的合金，适用于与铁素体钢接合的合金。 此外，本发明提供了一种在整个焊接结构中具有强度，延展性和韧性的焊接式涡轮转子，当耐热温度为675℃以上的析出强化型Ni基合金与铁素体钢 。 根据本发明的镍基合金包含钴，铬，铝，碳，硼，以及至少钨或钼，其余为镍和不可避免的杂质，其合金组成包含12〜25质量％的Co ，10〜18质量％的Cr，2.0〜3.6质量％的Al，0.01〜0.15质量％的C，0.001〜0.03质量％的B，钨和钼的总量为5.0〜10质量％ 质量 焊接的涡轮转子通过将第二Ni基合金焊接到γ'相固相温度为900℃以上的第一Ni基合金和675°的蠕变断裂强度下， C为100MPa以上，进一步将铁素体钢焊接到第二Ni基合金。 第二Ni基合金是γ'相（Ni3Al）析出强化型Ni基合金，γ'相固溶温度为850℃以下。

公开(公告)号：US08524149B2

公开(公告)日：2013-09-03

申请号：US12728292

申请日：2010-03-22

申请人： Jun Sato ,  Shinya Imano ,  Hiroyuki Doi

发明人： Jun Sato ,  Shinya Imano ,  Hiroyuki Doi

IPC分类号： C22C19/05 ,  C22C30/00

CPC分类号： C22C19/055

摘要： A nickel base alloy includes: by mass, 0.001 to 0.1% of carbon; 12 to 23% of chromium; 15 to 25% of cobalt; 3.5 to 5.0% of aluminum; 4 to 12% of molybdenum; 0.1 to 7.0% of tungsten; and a total amount of Ti, Ta and Nb being not more than 0.5%. A parameter Ps represented by a formula (1) shown below is 0.6 to 1.6, Ps=−7×[C]−0.1×[Mo]+0.5×[Al]  (1) where [C] indicates an amount of carbon; [Mo] indicates an amount of molybdenum; and [Al] indicates an amount of aluminum, by mass percent.

摘要翻译： 镍基合金包括：质量计，0.001〜0.1％的碳; 12〜23％的铬; 15〜25％的钴; 3.5〜5.0％的铝; 4〜12％的钼; 0.1〜7.0％的钨; Ti，Ta和Nb的总量不大于0.5％。 由下式（1）表示的参数Ps为0.6〜1.6，Ps = -7×[C] -0.1×[Mo] + 0.5×[Al]（1）其中，[C]表示碳数; [Mo]表示钼的量; 和[Al]表示铝的质量％。

公开(公告)号：US08512488B2

公开(公告)日：2013-08-20

申请号：US11836900

申请日：2007-08-10

申请人： Shinya Imano ,  Hirotsugu Kawanaka ,  Hiroyuki Doi ,  Tatsuya Takahashi ,  Tsukasa Azuma ,  Koji Kajikawa

发明人： Shinya Imano ,  Hirotsugu Kawanaka ,  Hiroyuki Doi ,  Tatsuya Takahashi ,  Tsukasa Azuma ,  Koji Kajikawa

IPC分类号： C22F1/10 ,  C22C19/05 ,  F01D5/14

CPC分类号： C22C19/05 ,  C22F1/10

摘要： An Ni—Fe based superalloy forging material including 30 to 40 wt % of Fe, 14 to 16 wt % of Cr, 1.2 to 1.7 wt % of Ti, 1.1 to 1.5 wt % of Al, 1.9 to 2.2 wt % of Nb, 0.05 wt % or less of C and the remainder of Ni and inevitable impurities is solution-treated and aged, and thereby γ′ phase (Ni3Al) having an initial mean particle size of about 50 to about 100 nm is precipitated. This superalloy is excellent in high-temperature strength and high-temperature ductility and can produce a large forged product of 10 ton or more. Therefore, this material is suitable for use as the material of a steam turbine rotor having a main steam temperature of 650° C. or more.

摘要翻译： 包含Fe：30〜40重量％，Cr：14〜16重量％，Ti：1.2〜1.7重量％，Al：1.1〜1.5重量％，Nb：1.9〜2.2重量％，Ni： 重量％以下的C和余量的Ni和不可避免的杂质进行溶液处理和老化，由此沉淀出初始平均粒度为约50〜约100nm的γ'相（Ni3Al）。 该超合金具有优异的高温强度和高温延展性，可生产10吨以上的大型锻造产品。 因此，该材料适用于主蒸汽温度为650℃以上的汽轮机转子的材料。

公开(公告)号：US08444778B2

公开(公告)日：2013-05-21

申请号：US12675688

申请日：2008-08-29

申请人： Toshihiro Uehara ,  Takehiro Ohno ,  Akihiro Toji ,  Takashi Sato ,  Gang Bao ,  Shinya Imano ,  Hiroyuki Doi

发明人： Toshihiro Uehara ,  Takehiro Ohno ,  Akihiro Toji ,  Takashi Sato ,  Gang Bao ,  Shinya Imano ,  Hiroyuki Doi

IPC分类号： C22C19/05 ,  C22F1/10

CPC分类号： C22C19/055 ,  C22F1/10 ,  F28F21/083

摘要： Disclosed is a low-thermal-expansion Ni-based super-heat-resistant alloy for a boiler, which has excellent high-temperature strength. The alloy can be welded without the need of carrying out any aging treatment. The alloy has a Vickers hardness value of 240 or less. The alloy comprises (by mass) C in an amount of 0.2% or less, Si in an amount of 0.5% or less, Mn in an amount of 0.5% or less, Cr in an amount of 10 to 24%, one or both of Mo and W in such an amount satisfying the following formula: Mo+0.5 W=5 to 17%, Al in an amount of 0.5 to 2.0%, Ti in an amount of 1.0 to 3.0%, Fe in an amount of 10% or less, and one or both of B and Zr in an amount of 0.02% or less (excluding 0%) for B and in an amount of 0.2% or less (excluding 0%) for Zr, with the remainder being 48 to 78% of Ni and unavoidable impurities.

摘要翻译： 公开了一种用于锅炉的低热膨胀Ni基超耐热合金，其具有优异的高温强度。 可以焊接合金，而不需要进行任何时效处理。 该合金的维氏硬度值为240以下。 该合金含有0.2质量％以下的Si（以质量计），0.5％以下的Si，0.5％以下的Mn，10〜24％的Cr，1种或2种 的Mo和W的量满足下式：Mo + 0.5W = 5〜17％，Al为0.5〜2.0％，Ti为1.0〜3.0％，Fe为10％ 以下的B和Zr中的一种或两种，B的含量为0.02％以下（不包括0％），Zr的含量为0.2％以下（不含0％），余量为48〜78 ％的Ni和不可避免的杂质。

公开(公告)号：US08043068B2

公开(公告)日：2011-10-25

申请号：US11206131

申请日：2005-08-18

申请人： Shinya Imano ,  Hiroyuki Doi ,  Isao Takehara ,  Shigeo Sakurai

发明人： Shinya Imano ,  Hiroyuki Doi ,  Isao Takehara ,  Shigeo Sakurai

IPC分类号： F01D5/14

CPC分类号： C22C19/056 ,  C22C19/058 ,  C22F1/10 ,  F01D5/02 ,  F01D25/005

摘要： A Ni—Fe based super alloy having high strength and toughness at high temperatures even when used in high-temperature environments, and a process of producing the super alloy. A turbine disk using the super alloy, a process of producing the turbine disk, a turbine spacer using the super alloy, and a process of producing the turbine spacer, as well as a gas turbine are also provided. The Ni—Fe based super alloy contains not more than 0.03% by weight of C, 14-18% of Cr, 15-45% of Fe, 0.5-2.0% of Al, not more than 0.05% of N, 0.5 to 2.0% of Ti, 1.5-5.0% of Nb, and Ni as a main ingredient.

摘要翻译： 即使在高温环境下使用时，也能够在高温下具有高强度和韧性的Ni-Fe系超合金，以及超合金的制造方法。 还提供了使用超级合金的涡轮盘，制造涡轮盘的方法，使用超级合金的涡轮间隔件，以及制造涡轮间隔件的工艺以及燃气轮机。 Ni-Fe基超合金含有不超过0.03重量％的Cr，14-18％的Cr，15-45％的Fe，0.5-2.0％的Al，不超过0.05的N，0.5-2.0 Ti的％，Nb的1.5〜5.0％，Ni为主要成分。

公开(公告)号：US20110014035A1

公开(公告)日：2011-01-20

申请号：US12825525

申请日：2010-06-29

申请人： Yoshitaka KOJIMA ,  Hideyuki Arikawa ,  Akira Mebata ,  Hiroyuki Doi ,  Hajime Toriya ,  Kenjiro Narita

发明人： Yoshitaka KOJIMA ,  Hideyuki Arikawa ,  Akira Mebata ,  Hiroyuki Doi ,  Hajime Toriya ,  Kenjiro Narita

IPC分类号： F01D11/00

CPC分类号： F01D11/02 ,  C22C19/00 ,  C22C19/058 ,  C22C19/07 ,  C23C4/073 ,  C23C28/02 ,  C23C30/00 ,  F01D11/001 ,  F01D11/122 ,  F05D2220/31 ,  F05D2300/509 ,  Y10T428/249961 ,  Y10T428/249974 ,  Y10T428/249981 ,  Y10T428/249989

摘要： A metal sealing material used in a sealing device which can reduce a gap between a stator and a rotor of a turbine. The metal sealing material used in a sealing device for a stator and a rotor of a turbine includes a surface layer and a lower layer composed of a porous metal layer, wherein the porosity of the surface layer is smaller than the porosity of the lower layer; the porosity of the surface layer is 60 to 65% and the porosity of the lower layer is 67 to 75% or less; and the porous metal layer has a thickness of 0.3 to 3.0 mm and may include, as a main component, an MCrAlY alloy where M is either one of Ni and Co or both thereof, and h-BN as a solid lubricant.

摘要翻译： 用于密封装置中的金属密封材料，其可以减小定子和涡轮机的转子之间的间隙。 用于定子的密封装置和涡轮机的转子的金属密封材料包括表面层和由多孔金属层构成的下层，其中表面层的孔隙率小于下层的孔隙率; 表面层的孔隙率为60〜65％，下层的孔隙率为67〜75％以下。 多孔金属层的厚度为0.3〜3.0mm，作为主要成分，可以举出M是Ni和Co中的任一种或两者的MCrAlY合金以及作为固体润滑剂的h-BN。

公开(公告)号：US20100059146A1

公开(公告)日：2010-03-11

申请号：US12551884

申请日：2009-09-01

申请人： Jun Sato ,  Shinya Imano ,  Hiroyuki Doi

发明人： Jun Sato ,  Shinya Imano ,  Hiroyuki Doi

IPC分类号： C21D1/18 ,  C22C19/05 ,  C22C38/00 ,  C22C30/00

CPC分类号： C22C19/055 ,  B23K35/004 ,  B23K35/304 ,  B23K2101/001 ,  C22C19/056 ,  C22F1/10 ,  F01D5/063 ,  Y02T50/671

摘要： The present invention provides, in a γ′ phase precipitation strengthening type Ni-base alloy, an alloy excellent in heat treatment capability and weldability and suitable for joint with a ferritic steel. Further, the present invention provides a welded turbine rotor having the strength, ductility, and toughness simultaneously over the whole welded structure when a precipitation strengthening type Ni-base alloy having a heatproof temperature of 675° C. or higher is joined to a ferritic steel.A Ni-base alloy according to the present invention contains cobalt, chromium, aluminum, carbon, boron, and at least either tungsten or molybdenum with the remainder being nickel and inevitable impurities, having an alloy composition including 12 to 25 percent by mass of Co, 10 to 18 percent by mass of Cr, 2.0 to 3.6 percent by mass of Al, 0.01 to 0.15 percent by mass of C, 0.001 to 0.03 percent by mass of B, the total amount of tungsten and molybdenum being 5.0 to 10 percent by mass.A welded turbine rotor is structured by joining or building up by welding a second Ni-base alloy to a first Ni-base alloy that a γ′ phase solid solution temperature thereof is 900° C. or higher and a creep fracture strength at 675° C. is 100 MPa or more, and further welding a ferritic steel to the second Ni-base alloy. The second Ni-base alloy is a γ′ phase (Ni3Al) precipitation strengthening type Ni-base alloy, a γ′ phase solid solution temperature thereof is 850° C. or lower.

摘要翻译： 本发明在γ-相析出强化型Ni基合金中提供了热处理能力和焊接性优异的合金，适用于与铁素体钢接合的合金。 此外，本发明提供了一种在整个焊接结构中具有强度，延展性和韧性的焊接式涡轮转子，当耐热温度为675℃以上的析出强化型Ni基合金与铁素体钢 。 根据本发明的镍基合金包含钴，铬，铝，碳，硼，以及至少钨或钼，其余为镍和不可避免的杂质，其合金组成包含12〜25质量％的Co ，10〜18质量％的Cr，2.0〜3.6质量％的Al，0.01〜0.15质量％的C，0.001〜0.03质量％的B，钨和钼的总量为5.0〜10质量％ 质量 焊接的涡轮转子通过将第二Ni基合金焊接到γ'相固相温度为900℃以上的第一Ni基合金和675°的蠕变断裂强度下， C为100MPa以上，进一步将铁素体钢焊接到第二Ni基合金。 第二Ni基合金是γ'相（Ni3Al）析出强化型Ni基合金，γ'相固溶温度为850℃以下。

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。