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1. 发明公开

EP0109221A1 High-strength austenitic steel 失效
标题翻译：高强度奥氏体钢。
公开(公告)号：EP0109221A1
公开(公告)日：1984-05-23
申请号：EP83306615.2
申请日：1983-10-31
申请人： HITACHI, LTD.
发明人： Iijima, Katsumi , Yamada, Norio , Kirihara, Seishin , Shiga, Masao , Sukekawa, Masayuki , Yoshioka, Takatoshi , Hiyama, Kiyoshi
IPC分类号： C22C38/58
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 substaqntially Fe, with the weight ratio (AI/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.

2. 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

3. 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.

4. 发明公开

EP0534164A3 Heat-resistant nitride dispersion strengthened alloys 失效
标题翻译：耐高温氮化物分散强化合金
公开(公告)号：EP0534164A3
公开(公告)日：1993-09-08
申请号：EP92114735.1
申请日：1992-08-28
申请人： HITACHI, LTD.
发明人： Aono, Yasuhisa , Ikeda, Shinzo , Sukekawa, Masayuki , Kato, Takahiko , Kondo, Yasuo , Izumiya, Masakiyo , Fukui, Yutaka , Kodama, Hideyo , Kayano, Hideo , Kurishita, Hiroaki , Yasuda, Ken
IPC分类号： C22C32/00 , C22C1/10 , C22C38/40 , C22C38/18 , C22C19/05 , G21C3/07
CPC分类号： G21C3/07 , C22C1/1084 , C22C32/0068 , C22C33/0285 , G21Y2002/104 , G21Y2004/10 , Y02E30/40
摘要： Heat-resistant nitride dispersion strengthened alloys provided with a base metal consisting of Fe-based ferrite steel, Fe-based austenitic steel or Ni-based alloy, and AlN particles or BN particles dispersed in a matrix of the base metal and increasing a heat resistance of the base metal. The alloys are heat-resistant strengthened alloys superior in high temperature strength with the AlN particles or the BN particles dispersed therein.

5. 发明授权

EP0120704B1 Boiler tube 有权
标题翻译：锅炉管
公开(公告)号：EP0120704B1
公开(公告)日：1989-06-07
申请号：EP84302072.8
申请日：1984-03-27
申请人： HITACHI, LTD. , BABCOCK-HITACHI KABUSHIKI KAISHA
发明人： Usami, Kenichi , Kirihara, Seishin , Doi, Hiroyuki , Asano, Choichi , Sukekawa, Masayuki , Sakaguchi, Yasuhide
IPC分类号： F22B37/04 , F22B37/10
CPC分类号： B32B15/01 , F22B37/04 , Y10S122/13 , Y10S165/905 , Y10T428/12965

6. 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

7. 发明授权

EP0534164B1 Method of manufacturing a nitride dispersed alloy and use thereof 失效
标题翻译：制造氮化物dispersionsverfertigten合金及其用途
公开(公告)号：EP0534164B1
公开(公告)日：1998-11-11
申请号：EP92114735.1
申请日：1992-08-28
申请人： Hitachi, Ltd.
发明人： Aono, Yasuhisa , Ikeda, Shinzo , Sukekawa, Masayuki , Kato, Takahiko , Kondo, Yasuo , Izumiya, Masakiyo , Fukui, Yutaka , Kodama, Hideyo , Kayano, Hideo , Kurishita, Hiroaki , Yasuda, Ken
IPC分类号： C22C32/00 , C22C1/10 , C22C38/40 , C22C38/18 , C22C19/05 , G21C3/07
CPC分类号： G21C3/07 , C22C1/1084 , C22C32/0068 , C22C33/0285 , G21Y2002/104 , G21Y2004/10 , Y02E30/40

8. 发明公开

EP0534164A2 Heat-resistant nitride dispersion strengthened alloys 失效
标题翻译： Hitzebeständigenitrid-dispersionsverfertigte Legierungen。
公开(公告)号：EP0534164A2
公开(公告)日：1993-03-31
申请号：EP92114735.1
申请日：1992-08-28
申请人： HITACHI, LTD.
发明人： Aono, Yasuhisa , Ikeda, Shinzo , Sukekawa, Masayuki , Kato, Takahiko , Kondo, Yasuo , Izumiya, Masakiyo , Fukui, Yutaka , Kodama, Hideyo , Kayano, Hideo , Kurishita, Hiroaki , Yasuda, Ken
IPC分类号： C22C32/00 , C22C1/10 , C22C38/40 , C22C38/18 , C22C19/05 , G21C3/07
CPC分类号： G21C3/07 , C22C1/1084 , C22C32/0068 , C22C33/0285 , G21Y2002/104 , G21Y2004/10 , Y02E30/40
摘要： Heat-resistant nitride dispersion strengthened alloys provided with a base metal consisting of Fe-based ferrite steel, Fe-based austenitic steel or Ni-based alloy, and AlN particles or BN particles dispersed in a matrix of the base metal and increasing a heat resistance of the base metal. The alloys are heat-resistant strengthened alloys superior in high temperature strength with the AlN particles or the BN particles dispersed therein.
摘要翻译：设置有由Fe基铁素体钢，Fe基奥氏体钢或Ni基合金构成的母材的耐热氮化物分散强化合金，分散在母材的基体中的AlN粒子或BN粒子，并增加耐热性的贱金属。合金是AlN颗粒或分散在其中的BN颗粒的耐高温强度优良的耐热强化合金。

9. 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.

10. 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。

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