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1. 发明专利

JP2002106302A TURBINE ROTOR 失效
公开(公告)号：JP2002106302A
公开(公告)日：2002-04-10
申请号：JP2000295815
申请日：2000-09-28
申请人： TOSHIBA CORP
发明人： SAITO KAZUHIRO , ITOU HIROSHIGE , MURAKAMI ITARU
IPC分类号： F01D5/30
摘要： PROBLEM TO BE SOLVED: To provide a turbine rotor having superior property to fretting fatigue of a moving blade embedding part. SOLUTION: In this turbine rotor comprising a rotor shaft 2 and a moving blade 2 mounted on an outer periphery of the rotor shaft along the circumferential direction, and connecting the rotor shaft 2 and the moving blade 1 by uneven engagement of plural hooks 4 arranged on a blade embedding part 3 of the moving blade 1 in a state of reducing their projection toward a center of the rotor shaft, a position of a contact end 8 of a stress concentrating part of a neck part 5 of the blade embedding part 3, and the rotor shaft on a first hook nearest to a surface of the rotor shaft 2 is displaced by a length of 0.2-2.0 mm.

2. 发明专利

JPH11193702A CRACK DEVELOPING PREDICTION METHOD FOR TURBINE ROTOR 失效
公开(公告)号：JPH11193702A
公开(公告)日：1999-07-21
申请号：JP36099797
申请日：1997-12-26
申请人： TOSHIBA CORP
发明人： ITOU HIROSHIGE , MATSUURA TOSHIHIRO
IPC分类号： G01M13/00 , F01D5/02 , F01D25/00 , F02C7/00 , G01N33/20
摘要： PROBLEM TO BE SOLVED: To provide a crack developing prediction method for a turbine rotor that can presume hardness of the turbine rotor from the stress, forecasts an amount of the crack developing from the presumed hardness, exciting force, and vibrational stress or the like, enabling a prompt replace or repair of the turbine rotor under the accurate crack progress prediction. SOLUTION: This crack developing prediction method for a turbine rotor presumes hardness of the turbine rotor from stress (ST1), and calculates fatigue strength and tensile strength from the presumed hardness (ST2). At the same time it calculates exciting force added from the turbine operation mode to the turbine rotor (ST3), and calculates vibrational stress of the turbine rotor from the calculated exciting force (ST4). It compares the fatigue strength and the tensile strength, and the vibrational stress to predict (ST6) the occurrence of the crack. When the amount of the crack progress exceeds the crack developing lower limit value, it changes turbine operation or the like (ST8).

3. 发明专利

JPH01270639A APPARATUS FOR MEASURING EMBRITTLEMENT 失效
公开(公告)号：JPH01270639A
公开(公告)日：1989-10-27
申请号：JP9834588
申请日：1988-04-22
申请人： TOSHIBA CORP
发明人： ITOU HIROSHIGE , YANO TOSHIYUKI
IPC分类号： G01N3/32
摘要： PURPOSE:To measure embrittlement using a fine metal piece, by calculating a relational expression of preliminarily obtained breaking load, breaking energy and ductile fracture rate with fracture transition temp. and calculating the fracture transition temp. of a member to be measured to the values measured from said expression. CONSTITUTION:The fine test piece collected from a member to be measured and having a notch formed thereto is cooled to testing temp. and bending load is applied to the cooled test piece by a load applying apparatus 9. The displacement and load until the test piece reaches destruction are detected by a load displacement detector 10 and a breaking load measuring device 12. The breaking load and the displacement to each load are integrated by a breaking energy measuring apparatus 11 to calculate the breaking energy absorbed by the test piece. The ductile fracture rate of the fracture of the destructed test piece is measured by a fracture measuring apparatus 13 and these detected values are inputted to an analyser 14 to be substituted for the relational expression of preliminarily obtained breaking load, breaking energy or ductile fracture rate with fracture transition temp. to calculate the fracture transition temp. of the test piece. By a rise in said temp., the embrittlement degree of the member to be measured can be judged.

4. 发明专利

JPS6187901A Turbine rotor 失效
标题翻译：涡轮转子
公开(公告)号：JPS6187901A
公开(公告)日：1986-05-06
申请号：JP20975484
申请日：1984-10-08
申请人： Toshiba Corp
发明人： ITOU HIROSHIGE
IPC分类号： F01D5/02 , F01D5/06
CPC分类号： F01D5/066 , F01D5/025
摘要： PURPOSE:To reduce stress corrosion cracking by providing a hub at its periphery with a boss mating with a key and a groove mating with a key seat, and by hot fitting an impeller on the rotary shaft, wherein the impeller is provided with the joint surface in such an arrangement as to be located in the centers of the said boss and groove seen in the axial direction. CONSTITUTION:A plurality of bosses 8 to serve as keys are formed at the periphery of a hub on a rotary shaft 1. An adjoining impeller is equipped with grooves 8' at the points mating with said bosses 8, wherein the bosses 8 and grooves 8' are arranged alternately. The joint surface 9 to be in contact by the end face with the adjoining impeller shall be located in the middle between boss and groove seen in the axial direction. This will reduce the depth of each key seat and increase its length l to cause sink of the uniform applied stress sigmaomicronas well as the stress concentration factor alpha, so that the max stress sigma max generated at the corners of each key seat reduces to a great extent. Therefore the time for generation of stress corrosion cracking is enlarged greatly to ensure that no cracking occurs in case stress sink is large.
摘要翻译：目的：为了减少应力腐蚀开裂，通过在其周边设置有与键配合的凸台和与键座配合的凹槽，以及通过在旋转轴上热配合叶轮，其中叶轮设置有接合表面在这样的布置中，位于沿轴向方向看到的所述凸台和凹槽的中心。构成：在旋转轴1上的轮毂的周边形成有用作键的多个凸台8.邻接的叶轮在与所述凸台8配合的点处装有槽8'，其中凸台8和凹槽8 “交替排列。与端面相接触的接头表面9应位于沿轴向方向看到的凸台与凹槽之间的中间。这将减少每个关键座的深度并增加其长度l，以使均匀施加的应力sigmaomicronas的凹陷很好地作为应力集中因子α，使得在每个关键座的角落处产生的最大应力σmax最大减小程度。因此，产生应力腐蚀开裂的时间大大增加，以确保在应力槽较大的情况下不发生开裂。

5. 发明专利

JP2007177775A Steam turbine rotor structure, steam turbine, and method for fixing steam turbine rotor blade 审中-公开
标题翻译：蒸汽涡轮转子结构，蒸汽涡轮机和固定汽轮机转子叶片的方法
公开(公告)号：JP2007177775A
公开(公告)日：2007-07-12
申请号：JP2005380299
申请日：2005-12-28
申请人： Toshiba Aitekku Kk , Toshiba Corp , 東芝アイテック株式会社 , 株式会社東芝
发明人： ITOU HIROSHIGE , SAITO KAZUHIRO
IPC分类号： F01D5/32
摘要： PROBLEM TO BE SOLVED: To provide a steam turbine rotor structure, a steam turbine, and a method for fixing a steam turbine rotor blade for easily fixing the lastly implanted rotor blade and for repeatedly using a member for fixing the rotor blade.
SOLUTION: The steam turbine rotor structure is provided with the turbine rotor 11 having a groove 12 of an implanting part extending in a circumferential direction and a notch part 13 continuing to the groove 12 of the implanting part on its outer peripheral surface, a plurality of the rotor blades implanted in the groove of the implanting part, and a blade fixing member 200 fixing the lastly implanted rotor blade 100 in the notch part 13. The blade fixing member 200 is provided with fitting protruding parts 104 and 105 to be respectively fitted in a fitting recessed part 18 formed in a prescribed inner wall of the notch part 13 and a fitting recessed part 103 formed between a blade part 102 of the rotor blade 100 and the implanting part 101 for fixing the lastly implanted rotor blade 100.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种汽轮机转子结构，蒸汽轮机，以及用于固定蒸汽轮机转子叶片的方法，用于容易地固定最后植入的转子叶片，并重复使用用于固定转子叶片的部件。解决方案：汽轮机转子结构设置有涡轮转子11，涡轮转子11具有沿圆周方向延伸的注入部分的凹槽12和在其外周表面上延伸到植入部分的凹槽12的切口部分13，植入在植入部的凹槽中的多个转子叶片，以及将最后植入的转子叶片100固定在切口部13中的叶片固定部件200.刀片固定部件200设置有配合突出部104,105 分别安装在形成在切口部13的规定内壁中的嵌合凹部18和形成在转子叶片100的叶片部102和用于固定最后植入的转子叶片100的植入部101之间的嵌合凹部103。版权所有（C）2007，JPO＆INPIT

6. 发明专利

JP2006189257A Method for evaluating life of strainer for steam valve 审中-公开
标题翻译：用于评估蒸汽阀过滤器寿命的方法
公开(公告)号：JP2006189257A
公开(公告)日：2006-07-20
申请号：JP2004381491
申请日：2004-12-28
申请人： Toshiba Corp , 株式会社東芝
发明人： ITOU HIROSHIGE , OISHI TSUTOMU
IPC分类号： G01M13/00 , F16K51/00 , G01M99/00
摘要： PROBLEM TO BE SOLVED: To provide a method for evaluating the life of a strainer for steam valves and for accurately and nondestructively evaluating damage of strainers due to collision with foreign matter and accurately predicting life.
SOLUTION: The method for evaluating the life of a strainer for steam valves comprises a step (ST1) for measuring deformations of a strainer in operation due to collision with foreign matter; a step (ST2) for specifying the size of the foreign matter which has caused the deformations and the collision velocity with it on the basis of the relation between predetermined steam flow velocities and the sizes of foreign matter; steps (ST3 and ST4) for computing a fatigue limit velocity by correcting a previously experimentally determined limit velocity in consideration of foreign matter having some diameter and the degradation of the strainer with the passage of time when a velocity at which the foreign matter passes through a strainer having some plate thickness is a limit velocity; a step (ST5) for comparing the collision velocity and the fatigue limit velocity; and steps (ST6-ST9) for evaluating fatigue life due to the collision with the foreign matter in the case that it is determined as a comparison result that the collision is greater.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种用于评估蒸汽阀的过滤器的寿命的方法，以及用于精确和非破坏性地评估由于与异物的碰撞而导致的过滤器的损坏并准确地预测寿命的方法。解决方案：用于评估蒸汽阀的过滤器寿命的方法包括：用于测量由于与异物的碰撞而在操作中的过滤器的变形的步骤（ST1）; 基于预定的蒸汽流速与异物的尺寸之间的关系，确定引起变形的异物的尺寸和碰撞速度的步骤（ST2）; 用于计算疲劳极限速度的步骤（ST3和ST4），用于通过考虑具有一定直径的异物和当异物通过的过程中随时间流逝的过滤器的劣化来校正先前实验确定的极限速度具有一定板厚的过滤器是极限速度; 比较碰撞速度和疲劳极限速度的步骤（ST5）; 以及在判定为碰撞较大的比较结果的情况下，评价与异物的碰撞时的疲劳寿命的步骤（ST6〜ST9）。版权所有（C）2006，JPO＆NCIPI

7. 发明专利

JP2002277383A METHOD OF EVALUATING COATING STRENGTH 失效
公开(公告)号：JP2002277383A
公开(公告)日：2002-09-25
申请号：JP2001078987
申请日：2001-03-19
申请人： TOSHIBA CORP
发明人： ITOU HIROSHIGE , SAITO KAZUHIRO , KUBO TAKAHIRO
IPC分类号： G01N25/72 , F01D25/00 , F02C7/00 , G01N19/04 , G01N29/04 , G01N29/11 , G01N29/10
摘要： PROBLEM TO BE SOLVED: To easily evaluate strength of an executed coating even in an actual component of a complicated shape. SOLUTION: A degree of damage in the coating and adhesive strength of the coating are evaluated by a degree of separation between the coating and a base material or a bond coating generated when impact force is applied under a fixed condition onto a sample executed with the coating supplied for evaluation, and by critical energy generating the separation.

8. 发明专利

JP2002089203A ROTOR OF STEAM TURBINE 失效
公开(公告)号：JP2002089203A
公开(公告)日：2002-03-27
申请号：JP2000280112
申请日：2000-09-14
申请人： TOSHIBA CORP
发明人： ITOU HIROSHIGE , SAITO KAZUHIRO , MATSUURA TOSHIHIRO
IPC分类号： F01D5/22 , F01D5/28
摘要： PROBLEM TO BE SOLVED: To provide a low-vibration rotor of a steam turbine by abutting contact faces of blade covers of adjacent blades on each other with a certain face pressure at all times under any operating circumstance such as rotational climbing, rotational lowering and rated rotation without loading the excess initial stress to a blade effective part or an embedding part of a wedge-shaped snubber blade. SOLUTION: The blade cover 3a is mounted on a tip part of a blade 1a stood on a rotor shaft 2, and the adjacent blade covers are connected to each other by adding the load corresponding to the predetermined centrifugal force to the blades in a static state.

9. 发明专利

JP2000206072A APPARATUS AND METHOD FOR INSPECTING DETERIORATION OF CERAMIC COATING MATERIAL 失效
公开(公告)号：JP2000206072A
公开(公告)日：2000-07-28
申请号：JP473399
申请日：1999-01-11
申请人： TOSHIBA CORP
发明人： TAKAHASHI MASASHI , SAITO MASAHIRO , ITOU HIROSHIGE , KUBO TAKAHIRO
IPC分类号： G01N25/72 , G01N33/38
摘要： PROBLEM TO BE SOLVED: To simply inspect the deterioration of the ceramic coating material applied to a base material. SOLUTION: An apparatus for inspecting the deterioration of a ceramic coating material is equipped with a flight object supply part 1 supplying a flight object, a test object fixing part 2 fixing a test object, a test atmosphere forming part 3 changing the test atmosphere of the test object, a test condition control part 4 controlling the test atmosphere forming part 3, a deterioration inspecting part 5 inspecting the deterioration of the test object, and a display part 6 displaying an inspection result. The damaged part of the test object generated by the collision of the flight object with the test object is heated and the temp. distribution of the heated test object is detected by an infrared imaging device and the deterioration of the ceramic coating material is inspected from the detected temp. distribution.

10. 发明专利

JPH107477A PROTECTION COATING FILM STRUCTURE OF CERAMIC PART, GAS TURBINE BLADE, BALL BEARING AND INSPECTION OF COATING FILM 失效
公开(公告)号：JPH107477A
公开(公告)日：1998-01-13
申请号：JP15854596
申请日：1996-06-19
申请人： TOSHIBA CORP
发明人： ITOU HIROSHIGE , OKABE NAGATOSHI
IPC分类号： F01D5/18 , C04B41/80 , C23C14/00 , C23C14/48 , F01D5/28 , F01D9/02 , F02C7/00
摘要： PROBLEM TO BE SOLVED: To suppress the frictional force to a low level and prevent the breakage or cracking of a ceramic part by applying an ion implantation treatment to a ceramic part to be brought into contact with a metallic part. SOLUTION: This gas turbine blade is composed of a metallic core 31 attached to a core part 29, a ceramic sleeve 32 encircling the outer side of the core metal 31 and a metallic blade cover 33 covering the core metal 31 and the sleeve 32. The sleeve 32 contacting with the blade cover 33 is covered with a coating layer 37 subjected to ion implantation treatment to modify the crystalline texture of the ceramic part into amorphous texture.

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