公开(公告)号：EP2267278A3

公开(公告)日：2013-10-16

申请号：EP10166424.1

申请日：2010-06-17

申请人： Hitachi, Ltd.

发明人： Asai, Kunio ,  Kudo, Takeshi ,  Yoda, Hideo ,  Tanaka, Katsumi

IPC分类号： F01D5/28 ,  C21D1/10 ,  C21D7/06

CPC分类号： F01D5/286 ,  C21D1/10 ,  C21D6/002 ,  C21D6/02 ,  C21D7/06 ,  C21D9/0068 ,  C21D2211/008 ,  C21D2221/01 ,  C21D2221/02 ,  F05C2253/24 ,  F05D2230/41 ,  F05D2230/90 ,  F05D2260/95 ,  F05D2300/171 ,  F05D2300/506 ,  Y02P10/253

摘要： A turbine rotor blade (1) which is enhanced in erosion resistance and reduced in stress corrosion cracking sensitivity is provided. When a blade tip end (2) of the turbine rotor blade (1) is hardened by heat treatment, hardness at an outer circumferential side in a radial direction is made higher than hardness at an inner circumferential side, and thereby, enhancement in erosion resistance and reduction in stress corrosion cracking sensitivity are made compatible with each other all over in a blade length direction.

公开(公告)号：EP2267278A2

公开(公告)日：2010-12-29

申请号：EP10166424.1

申请日：2010-06-17

申请人： Hitachi, Ltd.

发明人： Asai, Kunio ,  Kudo, Takeshi ,  Yoda, Hideo ,  Tanaka, Katsumi

IPC分类号： F01D5/28 ,  C21D1/10 ,  C21D7/06

CPC分类号： F01D5/286 ,  C21D1/10 ,  C21D6/002 ,  C21D6/02 ,  C21D7/06 ,  C21D9/0068 ,  C21D2211/008 ,  C21D2221/01 ,  C21D2221/02 ,  F05C2253/24 ,  F05D2230/41 ,  F05D2230/90 ,  F05D2260/95 ,  F05D2300/171 ,  F05D2300/506 ,  Y02P10/253

摘要： A turbine rotor blade (1) which is enhanced in erosion resistance and reduced in stress corrosion cracking sensitivity is provided. When a blade tip end (2) of the turbine rotor blade (1) is hardened by heat treatment, hardness at an outer circumferential side in a radial direction is made higher than hardness at an inner circumferential side, and thereby, enhancement in erosion resistance and reduction in stress corrosion cracking sensitivity are made compatible with each other all over in a blade length direction.

摘要翻译： 提供了一种提高耐冲蚀性和降低应力腐蚀开裂敏感性的涡轮转子叶片（1）。 当通过热处理使涡轮转子叶片（1）的叶片前端（2）硬化时，径向外周侧的硬度比内周侧的硬度高，从而提高耐侵蚀性 并且使应力腐蚀开裂敏感性的降低在刀片长度方向上彼此兼容。

公开(公告)号：EP2722407A2

公开(公告)日：2014-04-23

申请号：EP13189010.5

申请日：2013-10-16

申请人： Hitachi Ltd.

发明人： Oikawa, Shinji ,  Yoda, Hideo ,  Arai, Masahiko ,  Doi, Hiroyuki

IPC分类号： C21D6/00 ,  C21D9/00 ,  C21D1/18 ,  C21D1/26 ,  C22C38/44

CPC分类号： F01D5/28 ,  C21D1/18 ,  C21D1/26 ,  C21D6/004 ,  C21D9/0068 ,  C21D2211/004 ,  C21D2211/008 ,  C22C38/00 ,  C22C38/06 ,  C22C38/44

摘要： A precipitation hardening martensitic stainless steel is provided with excellent mechanical property and corrosion resistance and contains, by mass, 0.1% or less of C; 0.1% or less of N; 10.0% ~ 15.0% of Cr; 10.0% ~ 15.0% of Ni; 0.5% ~ 2.5% of Mo; 1.0% ~ 3.0% of Al; 1.0% or less of Si; 1.0% or less of Mn, and the rest is Fe and inevitable impurities. A steam turbine long blade (10) is made of the precipitation hardening martensitic stainless steel.

摘要翻译： 沉淀硬化马氏体不锈钢具有优异的机械性能和耐腐蚀性，并且质量含有0.1％以下的C; 0.1％以下的N; 10.0％〜15.0％的Cr; 10.0％〜15.0％的Ni; 0.5％〜2.5％的Mo; 1.0％〜3.0％的Al; 1.0％以下的Si; 1.0％以下的Mn，其余为Fe和不可避免的杂质。 蒸汽轮机长叶片（10）由沉淀硬化马氏体不锈钢制成。

公开(公告)号：EP2584149A2

公开(公告)日：2013-04-24

申请号：EP12188808.5

申请日：2012-10-17

申请人： Hitachi Ltd.

发明人： Arai, Masahiko ,  Doi, Hiroyuki ,  Yoda, Hideo ,  Tanaka, Katsumi

IPC分类号： F01D5/28 ,  B23P15/04

CPC分类号： F01D5/288 ,  B23K15/0006 ,  B23K15/0093 ,  B23K2201/001 ,  F01D5/28 ,  F05D2230/233 ,  F05D2300/11 ,  F05D2300/17

摘要： Disclosed is a turbine blade including a turbine blade substrate (63) including an iron-base alloy; an erosion shield plate (61) including a Co-base alloy; and a shim (62) including a Ni-Fe alloy, in which the erosion shield plate (61) is fixed to a leading edge of the turbine blade substrate (63) with the shim (62) therebetween by an electron beam welding. Thus, a turbine blade having a highly reliable, bonded portion of an erosion shield, and a turbine rotor and a steam turbine using the turbine blade are provided.

摘要翻译： 公开了一种涡轮叶片，其包括具有铁基合金的涡轮叶片基板（63） 包括Co基合金的侵蚀屏蔽板（61） 以及包括Ni-Fe合金的垫片（62），其中通过电子束焊接其中垫片（62）将侵蚀屏蔽板（61）固定到涡轮叶片基板（63）的前缘。 因此，提供了具有高度可靠的防腐蚀屏蔽部分的涡轮叶片，以及使用涡轮叶片的涡轮机转子和蒸汽轮机。

公开(公告)号：EP2455496A1

公开(公告)日：2012-05-23

申请号：EP11188417.7

申请日：2011-11-09

申请人： Hitachi, Ltd.

发明人： Oikawa, Shinji ,  Yoda, Hideo ,  Arai, Masahiko ,  Doi, Hiroyuki

IPC分类号： C21D6/00 ,  C21D6/02 ,  C21D9/00 ,  C22C38/18 ,  C22C38/40 ,  C22C38/44 ,  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".

摘要翻译： 本发明的目的是提供具有高机械强度，高韧性和良好耐腐蚀性能的均衡性能的沉淀硬化马氏体不锈钢。 提供了一种沉淀硬化马氏体不锈钢，其包含：0.10质量％以下的C; 13.0〜15.0质量％的Cr; 7.0〜10.0质量％的Ni; 2.0〜3.0质量％的Mo; 0.5〜2.5质量％的Ti; 0.5〜2.5质量％的Al; 0.5质量％以下的Si; 0.1〜1.0质量％的Mn; 余量包括Fe和偶氮杂质，其中Ti（以[Ti含量]表示）的质量％含量，Al（由[Al含量]表示）的质量％含量和C的质量％含量 （由[C含量表示]）满足“0.5‰¤[Ti含量]‰¤2.5”和“0.5‰[Al含量] + 2 [C含量]‰¤2.7”的关系。

公开(公告)号：EP2745986A1

公开(公告)日：2014-06-25

申请号：EP13192812.9

申请日：2013-11-14

申请人： Hitachi, Ltd.

发明人： Hirano, Atsuya ,  Shishime, Keiko ,  Kudo, Takeshi ,  Mikazuki, Kazuto ,  Sato, Koki ,  Yoda, Hideo

IPC分类号： B24B39/00 ,  B23Q17/22 ,  G05B19/00

CPC分类号： B24B39/003 ,  B23P9/02 ,  B24B39/02 ,  G05B19/404 ,  Y10T29/47

摘要： A burnishing device and a burnishing method are provided, which enable burnishing processing to be reliably performed on a surface being included in an object 105 to be processed and having a change in height and inclination angle. The burnishing device includes a burnishing tool 1 having a pressing unit 13 that rotationally presses a surface of an object 105 to be processed, the surface having a change in height and inclination angle, a tool driving device 2 configured to move the burnishing tool 1, a strain sensor 14a, 14b configured to detect the strain amount of the burnishing tool 1, and a computer 3 configured to calculate pressing force to be applied by the pressing unit 13 in a normal direction of the surface of the object 105 to be processed, calculate a correction amount of displacement of the tool driving device 2 in a pressing direction on the basis of the calculated pressing force and stored pressing force in advance, and output the correction amount to the tool driving device 2.

公开(公告)号：EP2617856A1

公开(公告)日：2013-07-24

申请号：EP13151817.7

申请日：2013-01-18

申请人： Hitachi Ltd.

发明人： Oikawa, Shinji ,  Yoda, Hideo ,  Arai, Masahiko ,  Doi, Hiroyuki

IPC分类号： C22C38/08 ,  C22C38/18

CPC分类号： F01D5/28 ,  C21D6/004 ,  C21D6/02 ,  C21D7/13 ,  C21D9/0068 ,  C21D2211/008 ,  C22C38/001 ,  C22C38/04 ,  C22C38/06 ,  C22C38/44 ,  C22C38/50 ,  C22C38/52 ,  F05D2230/72 ,  F05D2300/171

摘要： The problem to be solved of the present invention is to provide a precipitation hardening martensitic stainless steel having excellent tissue stability, strength, toughness, and corrosion-resistance, requiring no sub-zero treatment, and having excellent productivity; and also a steam turbine long blade (10) using the same. The problem is solved by providing a precipitation hardening martensitic stainless steel containing, by mass, 0.1% or less of C; 0.1% or less of N; 9.0% or more and 14.0% or less of Cr; 9.0% or more and 14.0% or less of Ni; 0.5% or more and 2.5% or less of Mo; 0.5% or less of Si; 1.0% or less of Mn; 0.25% or more and 1.75% or less of Ti; 0.25% or more and 1.75% or less of Al, and the rest is Fe and inevitable impurities; and a steam turbine long blade (10) using the precipitation hardening martensitic stainless steel.

摘要翻译： 要解决本发明的问题是提供一种沉淀硬化具有优异的组织稳定性，强度，韧性和耐腐蚀性，不需要深冷处理，并具有优异的生产性马氏体不锈钢; 因此使用其的汽轮机长叶片（10）。 麻烦的是通过提供一种沉淀硬化的马氏体不锈钢包含解决，通过质量，0.1％或更少的C; 0.1％或更少的N; 9.0％以上且14.0％或更少的Cr; 9.0％以上且14.0％以下的Ni的; 0.5％以上且2.5％以下的Mo; 0.5％或更少的Si; 1.0％或更少的Mn; 0.25％以上且1.75％以下的Ti; 0.25％以上且1.75％以下的Al，其余为Fe和不可避免的杂质; 以及使用该沉淀硬化的马氏体不锈钢的汽轮机长叶片（10）。

公开(公告)号：EP2546383A1

公开(公告)日：2013-01-16

申请号：EP12172290.4

申请日：2012-06-15

申请人： Hitachi Ltd.

发明人： Oikawa, Shinji ,  Yoda, Hideo ,  Arai, Masahiko ,  Doi, Hiroyuki

IPC分类号： C22C38/44 ,  C22C38/50

CPC分类号： C22C38/50 ,  C22C38/44

摘要： This invention provides a precipitate hardening stainless steel having excellent structure stability, strength, toughness, and corrosion resistance, which requires no sub-zero treating and thus is excellent in terms of productivity, and a long blade for a steam turbine using 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 %, A1 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; and a long blade 10 for a steam turbine 30 composed of the precipitate hardening stainless steel.

摘要翻译： 本发明提供一种沉淀硬化具有优异的结构稳定性，强度，韧性和耐腐蚀性，其不需要零度治疗并因此具有优异的生产性方面不锈钢，和一个长叶片为使用相同的蒸汽涡轮机。 沉淀硬化不锈钢，其在10.0质量％12:05质量％以下包括C，N 12:05质量％或以下，Cr至14.0质量％以下，Ni为8.5质量％至11.5质量％以下，Mo：提供下面的 在0.5质量％〜3.0质量％以下，Ti：1.5质量％〜2.0质量％，A1在0时25质量％〜1时质量％，Si以质量以下，和Mn：1.0质量％以下0.5％，余量是 的Fe和不可避免的杂质组成; 和用于蒸汽涡轮30长叶片10构成的沉淀硬化不锈钢的。

公开(公告)号：EP2377962A1

公开(公告)日：2011-10-19

申请号：EP11003254.7

申请日：2011-04-18

申请人： Hitachi, Ltd.

发明人： Oikawa, Shinji ,  Yoda, Hideo ,  Arai, Masahiko ,  Doi, Hiroyuki

IPC分类号： C22C38/04 ,  C22C38/06 ,  C22C38/44 ,  C22C38/46 ,  C22C38/48 ,  C22C38/50 ,  C21D6/00 ,  C21D6/02 ,  F01D5/28

CPC分类号： C22C38/06 ,  C21D6/004 ,  C21D6/02 ,  C21D9/0068 ,  C21D2211/008 ,  C22C38/04 ,  C22C38/44 ,  C22C38/46 ,  C22C38/48 ,  C22C38/50 ,  F01D5/286 ,  F05D2260/95 ,  F05D2300/171

摘要： A precipitation hardenable martensitic stainless steel excellent in the stability of martensite, having the high strength, high toughness and high corrosion resistance is provided. The precipitation hardenable martensitic stainless steel contains at a mass rate, C: 0.05-0.10%, Cr: 12.0-13.0%, Ni: 6.0-7.0%, Mo: 1.0-2.0%, Si: 0.01-0.05%, Mn: 0.06-1.0%, Nb: 0.3-0.5%, V: 0.3-0.5%, Ti: 1.5-2.5%, Al: 1.0-2.3%, and the remainder consisting of Fe and an unavoidable impurity.

摘要翻译： 阿可沉淀硬化的马氏体不锈钢具有优良的马氏体的稳定性，具有高强度，高韧性和高耐腐蚀性提供。 的可沉淀硬化的马氏体不锈钢包含以质量速率，C：0点05分〜12：10％以下，Cr：12.0-13.0％以下，Ni：6.0-7.0％以下，Mo：1.0-2.0％以下，Si：0点01〜12：05％以下，Mn：0.06 -1.0％以下，Nb：0.3〜0.5％，V：0.3-0.5％以下，Ti：1.5〜2.5％以下，Al：1.0-2.3％，以及余量的Fe由...组成和不可避免的杂质。