-
1.发明申请公开(公告)号：US20200016659A1
公开(公告)日：2020-01-16
申请号：US16582732
申请日：2019-09-25
发明人： Shinya IMANO , Yuting WANG , Shigenobu EGUCHI , Yoshitaka UEMURA , Norihiko MOTOYAMA , Takanao KOMAKI
摘要： There is provided an additive manufactured (AM) article formed of a Co based alloy having a composition comprising: in mass %, 0.08-0.25% C; 0.1% or less B; 10-30% Cr; 30% or less in total of Fe and Ni, the Fe being 5% or less; 5-12% in total of W and/or Mo; 0.5-2% in total of Ti, Zr, Nb and Ta; 0.5% or less Si; 0.5% or less Mn; 0.003-0.04% N; and the balance being Co and impurities. The AM article comprises crystal grains with an average size of 10-100 μm. In the crystal grains, segregation cells with an average size of 0.15-1.5 μm are formed, in which components constituting an MC type carbide phase comprising the Ti, Zr, Nb and/or Ta are segregated in boundary regions of the cells, and/or grains of the MC type carbide phase are precipitated at an average intergrain distance of 0.15-1.5 μm.
-
2.发明申请Steam Turbine Rotor, Steam Turbine Including Same, and Thermal Power Plant Using Same 审中-公开蒸汽轮机转子，包括相同的蒸汽轮机和使用相同的火力发电厂公开(公告)号：US20160177742A1
公开(公告)日：2016-06-23
申请号：US14971462
申请日：2015-12-16
发明人： Shinji OIKAWA , Shinya IMANO , Hiroyuki DOI , Akira YOSHINARI
CPC分类号： F01D5/28 , C22C14/00 , C22C38/001 , C22C38/002 , C22C38/04 , C22C38/44 , C22C38/46 , C22C38/48 , C22C38/52 , C22C38/54 , F01D5/02 , F01D5/06 , F01D25/005 , F05D2220/31 , F05D2220/72 , F05D2240/60 , F05D2300/11 , F05D2300/121 , F05D2300/13 , F05D2300/131 , F05D2300/132 , F05D2300/171 , F05D2300/174
摘要： It is an objective of the invention to provide a steam turbine rotor of which a rotor shaft is made of a low-cost heat resistant ferritic steel and that can withstand high main steam temperatures of about 650° C. There is provided a steam turbine rotor comprising: a rotor shaft made of a heat resistant ferritic steel such as a 12-Cr steel; and a rotor blade made of a Ti—Al alloy, wherein the Ti—Al alloy includes: from 38 to 45 atomic % of Al; from 0.5 to 2 atomic % of V; from 2 to 6 atomic % of Cr and/or Mo; and the balance being Ti and incidental impurities.
摘要翻译： 本发明的目的是提供一种蒸汽轮机转子，其中转子轴由低成本的耐热铁素体钢制成，并且能够承受约650℃的高主蒸汽温度。提供了一种汽轮机转子 包括：由诸如12-Cr钢的耐热铁素体钢制成的转子轴; 以及由Ti-Al合金制成的转子叶片，其中所述Ti-Al合金包括：38至45原子％的Al; 0.5至2原子％的V; 2〜6原子％的Cr和/或Mo; 余量为Ti和杂质。
-
3.发明申请Ni BASED FORGED ALLOY, AND TURBINE DISC, TURBINE SPACER AND GAS TURBINE EACH USING THE SAME 有权Ni基锻造合金，涡轮盘，涡轮机间隔和每次使用相同的气体涡轮公开(公告)号：US20140363297A1
公开(公告)日：2014-12-11
申请号：US14300255
申请日：2014-06-10
发明人： Takashi SHIBAYAMA , Shinya IMANO , Hideki TAMAKI
CPC分类号： F01D5/28 , C22B9/18 , C22B9/20 , C22C19/05 , C22C19/056 , F01D25/005 , F05D2250/80 , F05D2300/17 , Y02T50/671
摘要： The Ni based forged alloy has a composition containing, on the basis of mass percent, Al: 0.5 to 1.0%, Cr: 17 to 21%, Fe: 17 to 19%, Nb: 4.5 to 5.5%, Ti: 0.8 to 1.3%, W: 3.0 to 6.0%, B: 0.001 to 0.03%, C: 0.001 to 0.015%, and Mo: 1.0% or less, the balance being Ni and inevitable impurities. The alloy includes carbide grains of the contained elements. The carbide grains have an average grain diameter of 20 μm or less. Thus, a Ni based forged alloy is provided which is excellent in high-temperature fatigue property and has a moderate macrosegregation property.
摘要翻译： Ni基锻造合金的组成为：以质量％计含有Al：0.5〜1.0％，Cr：17〜21％，Fe：17〜19％，Nb：4.5〜5.5％，Ti：0.8〜1.3 ％，W：3.0〜6.0％，B：0.001〜0.03％，C：0.001〜0.015％，Mo：1.0％以下，余量为Ni和不可避免的杂质。 该合金包含所含元素的碳化物颗粒。 碳化物的平均粒径为20μm以下。 因此，提供了具有优异的高温疲劳性能并具有适度的宏观偏析特性的Ni基锻造合金。
-
公开(公告)号：US20200277692A1
公开(公告)日：2020-09-03
申请号：US15931993
申请日：2020-05-14
发明人： Atsuo OTA , Shinya IMANO
摘要： In a manufacturing method of a turbine rotor blade using an Ni-based forged alloy, provided is a turbine rotor blade and a member of a turbine rotor blade having an excellent workability and a high degree of freedom in the design of a cooling structure. The turbine rotor blade includes at least two members, including a first member and a second member, and each member is provided with cooling structural parts acting as cooling flow passages. The turbine rotor blade has a joint that integrates the first member and the second member, wherein the joint has a forged structure and the whole turbine rotor blade including the joint has a uniform forged structure.
-
公开(公告)号：US20200246874A1
公开(公告)日：2020-08-06
申请号：US16719008
申请日：2019-12-18
发明人： Takashi SHIBAYAMA , Shinya IMANO , Yuting WANG , Shigenobu EGUCHI
IPC分类号： B22F9/08
摘要： The metal powder producing apparatus includes: a first gas jet nozzle that includes jet holes disposed in a bottom surface of a gas jet device so as to form first rings each, and jets gas against molten metal flowing down through the liquid nozzles; a second gas jet nozzle that includes jet holes disposed in the bottom surface of the gas jet device so as to form second rings each on an outer side of a corresponding one of the first rings, and jets gas to prevent scatter of metal particles; and a third gas jet nozzle that includes jet holes disposed in the bottom surface of the gas jet device so as to form a third ring on an outer side of the second gas jet nozzle, and jets gas against an inner wall surface of the spray chamber.
-
6.发明申请公开(公告)号：US20200048750A1
公开(公告)日：2020-02-13
申请号：US16654760
申请日：2019-10-16
发明人： Shinya IMANO , Hironori KAMOSHIDA
摘要： There are provided: an Ni-based alloy member including a γ′ phase precipitation with 36 to 60 volume % and exhibiting a high durable temperature and good cold workability; a method for producing the member; an Ni-based alloy product to be used as a precursor of the member; and a method for producing the product. The Ni-based alloy product has a two-phase structure composed of a γ phase and a γ′ phase being incoherent to the γ phase, the incoherent γ′ phase being present at a ratio of 20 volume % or higher. The Ni-based alloy member produced by cold working the Ni-based alloy product and subsequently by conducting heat treatment comprises a γ phase and a γ′ phase being coherent to the γ phase, the coherent γ′ phase being present at a ratio of 36 to 60 volume %, and has a predetermined shape.
-
7.发明申请公开(公告)号：US20200016658A1
公开(公告)日：2020-01-16
申请号：US16582517
申请日：2019-09-25
发明人： Shinya IMANO , Yuting WANG , Shigenobu EGUCHI , Yoshitaka UEMURA , Norihiko MOTOYAMA , Takanao KOMAKI
摘要： There is provided an additive manufactured (AM) article formed of a Co based alloy having a composition comprising: in mass %, 0.08-0.25% C; 0.1% or less B; 10-30% Cr; 30% or less in total of Fe and Ni, the Fe being 5% or less; 5-12% in total of W and/or Mo; 0.5-2% in total of Ti, Zr, Nb and Ta; 0.5% or less Si; 0.5% or less Mn; 0.003-0.04% N; and the balance being Co and impurities. The AM article comprises crystal grains with an average size of 10-100 μm. In the crystal grains, segregation cells with an average size of 0.15-1.5 μm are formed, in which components constituting an MC type carbide phase comprising the Ti, Zr, Nb and/or Ta are segregated in boundary regions of the cells, and/or grains of the MC type carbide phase are precipitated at an average intergrain distance of 0.15-1.5 μm.
-
公开(公告)号：US20170130603A1
公开(公告)日：2017-05-11
申请号：US15349383
申请日：2016-11-11
发明人： Hironori KAMOSHIDA , Shinya IMANO , Masao TAKEYAMA
CPC分类号： F01D25/005 , C22C30/00 , C22C38/08 , C22C38/12 , C22C38/14 , C22C38/44 , C22C38/48 , C22C38/50 , C22C38/54 , F01D17/141 , F01D25/24 , F01K7/00 , F05D2220/31 , F05D2300/171
摘要： Provided herein are an austenite steel that satisfies desirable strength and desirable castability at the same time, and an austenite steel casting using same. The austenite steel according to an embodiment of the present invention contains Ni: 25 to 50%, Nb: 3.8 to 6.0%, Zr: 0.5% or less, B: 0.001 to 0.05%, Cr: 12 to 25%, Ti: 1.6% or less, Mo: 4.8% or less, and W: 5.2% or less in mass %, and the balance Fe and unavoidable impurities, wherein the parameter Ps represented by the following formula (1) satisfies Ps≦38, Ps=8.3[Nb]−7.5[Ti]+2.4[Mo]+3.5[W] formula (1), where [Nb], [Ti], [Mo], and [W] represent the contents of Nb, Ti, Mo, and W, respectively, in mass %.
-
公开(公告)号：US20160130954A1
公开(公告)日：2016-05-12
申请号：US14996427
申请日：2016-01-15
发明人： Jun SATO , Shinya IMANO , Hiroyuki DOI
CPC分类号： F01D5/28 , B23K35/3033 , B23K2103/18 , B23K2103/26 , C22C19/056 , F05D2300/17
摘要： The invention provides a Ni—Fe-based alloy which is preferable for a welding of a joint between different materials such as a steel material and a Ni-based alloy, and a rotor for a steam turbine which is manufactured by using the same. The invention employs a Ni—Fe-based alloy including Cr: 14 to 18%, Al: 1.0 to 2.5%, Mo+W: 2.5 to 5.0%, C: 0.01 to 0.10%, B: 0.001 to 0.03%, and Fe: 15 to 20%, in mass, in which the remaining portion is constructed by an unavoidable impurity and Ni, as a welding metal. As a result, it is possible to provide a rotor for a steam turbine which can hold down a reduction of a ductility and a toughness generated in the case of welding the different materials, and is excellent in a strength and the ductility.
摘要翻译： 本发明提供一种Ni-Fe基合金，其优选用于焊接诸如钢材和Ni基合金的不同材料之间的接头，以及用于通过使用该合金制造的用于蒸汽轮机的转子。 本发明采用Cr：14〜18％，Al：1.0〜2.5％，Mo + W：2.5〜5.0％，C：0.01〜0.10％，B：0.001〜0.03％的Ni-Fe系合金，Fe ：15质量％〜20质量％，剩余部分由不可避免的杂质构成，Ni作为焊接金属。 结果，可以提供一种用于蒸汽轮机的转子，该转子可以抑制在不同材料的焊接的情况下产生的延展性和韧性的降低，并且强度和延展性优异。
-
公开(公告)号：US20200215615A1
公开(公告)日：2020-07-09
申请号：US16624658
申请日：2018-12-07
发明人： Takashi SHIBAYAMA , Shigenobu EGUCHI , Yuting WANG , Shinya IMANO
摘要： A metal-powder producing apparatus includes a spray chamber, and a plurality of spray nozzles that liquid-spray a melted metal into the spray chamber. Each of the plurality of spray nozzles includes: a liquid nozzle that allows the melted metal to flow down into the spray chamber; and a gas-jet nozzle that has a plurality of gas-jet holes arranged around the liquid nozzle and causing a gas fluid to collide with the melted metal having flowed down from the liquid nozzle.
-
-
-
-
-
-
-
-
-
搜索结果
22 条记录 (耗时 0.019 秒)
