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1. 发明公开

EP0084588A3 Heat-resistant and corrosion-resistant weld metal alloy and welded structure 有权
标题翻译：耐热和耐腐蚀焊接金属合金和焊接结构
公开(公告)号：EP0084588A3
公开(公告)日：1984-02-22
申请号：EP82104561
申请日：1982-05-25
申请人： Hitachi, Ltd. , BABCOCK-HITACHI KABUSHIKI KAISHA
发明人： Sukekawa, Masayuki , Tobita, Yoshimitsu , Kirihara, Seishin , Morimoto, Hisashi , Usami, Kenichi , Iijima, Katsumi
IPC分类号： B23K35/30 , C22C38/58
CPC分类号： B23K35/3066 , C22C30/00 , C22C38/58 , Y10T428/12979
摘要： A heat-resistant and corrosion-resistant weld metal alloy consisting essentially of, by weight, less than 0.08% of C, 0.1 to 1.0% of Si, 2 to 3% of Mn, 32 to 42% of Ni, 21 to 25% of Cr, 0.8 to 1.7% of Mo, 0.1 to 1.0% of Nb, up to 0.5% of Ti, up to 2% of Co, up to 2% of Cu, up to 1% of W, up to 0.2% of N, up to 1.0% of V, up to 1.0% of Zr, up to 1.0% of Ta and the balance Fe, wherein the following conditions are met Ti+Zr≦1.0%, Ni+Co≦42%, W+V≦1.0%, Nb+Ta≦1.0%, and 4≦Nb/C≦15; and an austenitic welded structure composed of an austenitic structural alloy and of a weld metal of the above-mentioned kind are provided by the invention.

2. 发明公开

EP0067526A1 Superhigh temperature and pressure steam turbine 无效
标题翻译： Dampfturbinefürextrem hohe温度和Drücke。
公开(公告)号：EP0067526A1
公开(公告)日：1982-12-22
申请号：EP82302419.5
申请日：1982-05-12
申请人： Hitachi, Ltd.
发明人： Iijima, Katsumi , Sukekawa, Masayuki , Kirihara, Seishin , Yamada, Norio
IPC分类号： C22C38/54
CPC分类号： C22C38/54
摘要： In a superhigh temperature and pressure steam turbine including a casing, blades in the casing receiving streams of steam jets for rotation, and a rotor shaft supporting the blades for rotation, wherein the casing includes an inner casing member having static blades secured thereto for guiding the streams of steam jets and an outer casing member enclosing the inner casing member, the rotor shaft is formed of an alloy consisting essentially, by weight, of less than 0.04% C, not more than 2% Mn, not more than 1.5% Si, 10-20% Cr, 20-30% Ni, 0.5-3% Mo, 0.5-3% Ti, 0.1-0.5% Al, 0.002-Q.01% B and the balance Fe and inevitable impurities. The alloy has a microstructure in which a y' phase is precipitated in austenite matrix, whereby the rotor shaft has superior high temperature creep strength and excellent thermal fatigue resistant property.
摘要翻译：在包括壳体的超高温和高压蒸汽涡轮机中，壳体中的叶片接纳用于旋转的蒸汽喷嘴的流，以及支撑用于旋转的叶片的转子轴，其中壳体包括具有固定到其上的静态叶片的内壳构件，蒸汽喷嘴流和包围内壳构件的外壳构件，转子轴由基本上按重量计小于0.04％C，不大于2％Mn，不超过1.5％Si的合金形成， 10-20％Cr，20-30％Ni，0.5-3％Mo，0.5-3％Ti，0.1-0.5％Al，0.002-0.01％B，余量为Fe和不可避免的杂质。该合金具有在奥氏体基体中析出γmin相的微结构，由此转子轴具有优异的高温蠕变强度和优异的耐热疲劳性能。

3. 发明公开

EP0637476A1 Blade for gas turbine, manufacturing method of the same, and gas turbine including the blade 失效
标题翻译： Gasturbinenschaufel，Verfahren zur Herstellung sowie Gurburbine mit dieser Schaufel。
公开(公告)号：EP0637476A1
公开(公告)日：1995-02-08
申请号：EP94111625.3
申请日：1994-07-26
申请人： HITACHI, LTD. , TOHOKU ELECTRIC POWER CO., INC.
发明人： Yoshinari, Akira , Tamaki, Hideki , Saito, Tosiaki , Kobayashi, Mitsuru , Iijima, Katsumi , Wada, Katsuo , Kano, Kimio , Matsuzaki, Hiroyuki
IPC分类号： B22D27/04 , C30B11/00 , C22C19/05 , C30B29/52
CPC分类号： F01D5/28 , B22D27/045 , C22C19/056 , C22C19/057 , C30B11/00 , C30B29/52 , Y02T50/671 , Y10S148/902
摘要： A gas-turbine moving blade made of a Ni-base superalloy containing less grain boundary strengthening elements, in which a blade portion (1) is formed of a single crystal and the rest is formed of columnar crystals, and a gas turbine including the moving blade. A thermal efficiency of the gas turbine can be improved to 35 % or more, and a thermal efficiency of complex power generation with a steam turbine can be improved to 45 % or more.
摘要翻译：一种由含有较少晶界强化元素的Ni基超合金制成的燃气轮机动叶片，其中叶片部分（1）由单晶形成，其余部分由柱状晶体形成，并且包括所述移动的燃气轮机刀。燃气轮机的热效率可以提高到35％以上，并且将蒸汽轮机的发电的热效率提高到45％以上。

4. 发明授权

EP0067526B1 Superhigh temperature and pressure steam turbine 无效
标题翻译：超高温和压力蒸汽涡轮
公开(公告)号：EP0067526B1
公开(公告)日：1986-11-26
申请号：EP82302419.5
申请日：1982-05-12
申请人： Hitachi, Ltd.
发明人： Iijima, Katsumi , Sukekawa, Masayuki , Kirihara, Seishin , Yamada, Norio
IPC分类号： C22C38/54
CPC分类号： C22C38/54

5. 发明公开

EP0084588A2 Heat-resistant and corrosion-resistant weld metal alloy and welded structure 有权
标题翻译：耐热和耐腐蚀的焊接合金和焊接部件。
公开(公告)号：EP0084588A2
公开(公告)日：1983-08-03
申请号：EP82104561.4
申请日：1982-05-25
申请人： Hitachi, Ltd. , BABCOCK-HITACHI KABUSHIKI KAISHA
发明人： Sukekawa, Masayuki , Tobita, Yoshimitsu , Kirihara, Seishin , Morimoto, Hisashi , Usami, Kenichi , Iijima, Katsumi
IPC分类号： B23K35/30 , C22C38/58
CPC分类号： B23K35/3066 , C22C30/00 , C22C38/58 , Y10T428/12979
摘要： A heat-resistant and corrosion-resistant weld metal alloy consisting essentially of, by weight, less than 0.08% of C, 0.1 to 1.0% of Si, 2 to 3% of Mn, 32 to 42% of Ni, 21 to 25% of Cr, 0.8 to 1.7% of Mo, 0.1 to 1.0% of Nb, up to 0.5% of Ti, up to 2% of Co, up to 2% of Cu, up to 1% of W, up to 0.2% of N, up to 1.0% of V, up to 1.0% of Zr, up to 1.0% of Ta and the balance Fe, wherein the following conditions are met Ti+Zr≦1.0%, Ni+Co≦42%, W+V≦1.0%, Nb+Ta≦1.0%, and 4≦Nb/C≦15; and an austenitic welded structure composed of an austenitic structural alloy and of a weld metal of the above-mentioned kind are provided by the invention.

6. 发明授权

EP0475428B1 Gas turbine, gas turbine blade used therefor and manufacturing method for gas turbine blade 失效
标题翻译：用于该燃气轮机和用于制备这些叶片的燃气涡轮叶片
公开(公告)号：EP0475428B1
公开(公告)日：1998-01-07
申请号：EP91115542.2
申请日：1991-09-13
申请人： HITACHI, LTD. , TOHOKU ELECTRIC POWER CO., INC.
发明人： Yoshinari, Akira , Saito, Tosiaki , Iijima, Katsumi , Ishida, Tadami , Hashida, Ryozo , Kano, Kimio
IPC分类号： F01D5/28
CPC分类号： F01D5/28 , F05D2300/607

7. 发明公开

EP0237170A2 Heat resistant steel and gas turbine composed of the same 失效
标题翻译：耐热钢和衍生的燃气涡轮机的部件。
公开(公告)号：EP0237170A2
公开(公告)日：1987-09-16
申请号：EP87300930.2
申请日：1987-02-03
申请人： HITACHI, LTD.
发明人： Siga, Masao , Fukui, Yutaka , Kuriyama, Mitsuo , Kurosawa, Soichi , Iijima, Katsumi , Iizuka, Nobuyuki , Maeno, Yosimi , Takahashi, Shintaro , Watanabe, Yasuo , Hiraga, Ryo
IPC分类号： C22C38/44 , C22C38/46 , F02C1/00
CPC分类号： C22C38/46 , C22C38/44 , Y10S60/909
摘要： A heat resistant steel of the present invention contains 0.05 to 0.2 wt. % of C, less than 0.5 wt °o of Si, less than 0.6 wt. % of Mn, 8 to 13 wt. % of Cr, 1.5 to 3 wt. % of Mo, 2 to 3 wt. % of Ni, 0.05 to 0.3 wt. % of V, 0.02 to 0.2 wt. % in total of either or both of Nb and Ta, 0.02 to 0.1 wt. % of N and the balance substantially Fe. Since a gas turbine of the present invention is constituted by members, such as discs, blades, shafts and so forth, made of alloys of this kind, the gas turbine has a structure in which it is possible to achieve a high level of creep rupture strength and Charpy impact value.

8. 发明授权

EP0084588B1 Heat-resistant and corrosion-resistant weld metal alloy and welded structure 有权
标题翻译：耐热和耐腐蚀焊接金属合金和焊接结构
公开(公告)号：EP0084588B1
公开(公告)日：1986-10-15
申请号：EP82104561.4
申请日：1982-05-25
申请人： Hitachi, Ltd. , BABCOCK-HITACHI KABUSHIKI KAISHA
发明人： Sukekawa, Masayuki , Tobita, Yoshimitsu , Kirihara, Seishin , Morimoto, Hisashi , Usami, Kenichi , Iijima, Katsumi
IPC分类号： B23K35/30 , C22C38/58
CPC分类号： B23K35/3066 , C22C30/00 , C22C38/58 , Y10T428/12979

9. 发明授权

EP0637476B1 Blade for gas turbine, manufacturing method of the same, and gas turbine including the blade 失效
标题翻译：燃气涡轮叶片，用于制备相同的，并且与该燃气涡轮叶片
公开(公告)号：EP0637476B1
公开(公告)日：2000-02-23
申请号：EP94111625.3
申请日：1994-07-26
申请人： Hitachi, Ltd. , TOHOKU ELECTRIC POWER CO., INC.
发明人： Yoshinari, Akira , Tamaki, Hideki , Saito, Tosiaki , Kobayashi, Mitsuru , Iijima, Katsumi , Wada, Katsuo , Kano, Kimio , Matsuzaki, Hiroyuki
IPC分类号： B22D27/04 , C30B11/00 , C22C19/05 , C30B29/52
CPC分类号： F01D5/28 , B22D27/045 , C22C19/056 , C22C19/057 , C30B11/00 , C30B29/52 , Y02T50/671 , Y10S148/902
摘要： A gas-turbine moving blade made of a Ni-base superalloy containing less grain boundary strengthening elements, in which a blade portion (1) is formed of a single crystal and the rest is formed of columnar crystals, and a gas turbine including the moving blade. A thermal efficiency of the gas turbine can be improved to 35 % or more, and a thermal efficiency of complex power generation with a steam turbine can be improved to 45 % or more.

10. 发明公开

EP0475428A1 Gas turbine, gas turbine blade used therefor and manufacturing method for gas turbine blade 失效
标题翻译：用于该燃气轮机和用于制备这些叶片工艺燃气涡轮叶片。
公开(公告)号：EP0475428A1
公开(公告)日：1992-03-18
申请号：EP91115542.2
申请日：1991-09-13
申请人： HITACHI, LTD. , TOHOKU ELECTRIC POWER CO., INC.
发明人： Yoshinari, Akira , Saito, Tosiaki , Iijima, Katsumi , Ishida, Tadami , Hashida, Ryozo , Kano, Kimio
IPC分类号： F01D5/28
CPC分类号： F01D5/28 , F05D2300/607
摘要： A heavy-duty gas turbine includes a compressor; a combustion liner; a turbine blade (7) in a single stage or multi-stages; and a turbine nozzle provided in correspondence to the turbine blade (7). The turbine blade (7) has a dovetail (10) secured to a turbine disk and has an overall length of not less than 180 mm, and it is made of a single-crystal Ni-base alloy whose γ phase is a single crystal. Operating gas temperature is not less than 1400 C, and metal temperature of a first blade is not less than 1000 °C under working stress.
摘要翻译：甲重型燃气涡轮机包括压缩机; 燃烧衬套; 在单级或多级涡轮叶片（7）; 和涡轮喷嘴对应于所述涡轮机叶片（7）提供。涡轮叶片（7）具有固定到涡轮盘的燕尾（10），并具有对不不少于180毫米的总长度，并且它是由单晶镍基合金是谁的γ相是单晶的。工作气体的温度不低于1400℃，和第一叶片的金属温度不工作应力下小于1000℃。

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