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1. 发明专利

JP2014070968A Ultrasonic inspection device and ultrasonic inspection method 审中-公开
标题翻译：超声波检查装置及超声波检查方法
公开(公告)号：JP2014070968A
公开(公告)日：2014-04-21
申请号：JP2012216297
申请日：2012-09-28
申请人： Babcock-Hitachi Co Ltd , バブコック日立株式会社
发明人： NAGASHIMA YOSHIAKI , MICHIGUCHI YOSHIHIRO , KIKUHARA SEIJI
IPC分类号： G01N29/04
摘要： PROBLEM TO BE SOLVED: To provide an ultrasonic inspection device capable of detecting a damage occurring in a welding heat affected zone selectively, easily in a short time.SOLUTION: The ultrasonic inspection device for inspecting a weld part using ultrasonic wave includes at least one ultrasonic sensor and an operation section. The ultrasonic sensor transmits ultrasonic wave to the weld part and receives the reflected wave. The operation section identifies a weld heat affected zone on the basis of a first received signal acquired by scanning the weld part with the ultrasonic sensor for region identification (step S101), detects a weld defect or damage in the weld part on the basis of a second received signal acquired by scanning the weld part with the ultrasonic sensor for damage analysis, extracts a damage existing in the identified weld heat affected zone 10C (step S102), and calculates a damage rate as a degree of the extracted damage (step S104).
摘要翻译：要解决的问题：提供一种能够在短时间内容易地选择性地检测焊接热影响区域中的损伤的超声波检查装置。解决方案：使用超声波检查焊接部分的超声波检查装置包括至少一个超声波传感器和操作部分。超声波传感器将超声波发送到焊接部并接收反射波。操作部基于通过用用于区域识别的超声波传感器扫描焊接部所获取的第一接收信号来识别焊接热影响区域（步骤S101），基于以下方式检测焊接部的焊接缺陷或损伤通过用用于损伤分析的超声波传感器扫描焊接部分而获取的第二接收信号，提取在所识别的焊接热影响区域10C中存在的损伤（步骤S102），并计算作为提取的损伤程度的损伤率（步骤S104）。

2. 发明专利

JP2014036971A Method for welding tube body to header and welded structure of header with tube body welded thereto 有权
标题翻译：将管体焊接到焊头的焊接头和焊接结构的方法
公开(公告)号：JP2014036971A
公开(公告)日：2014-02-27
申请号：JP2012179411
申请日：2012-08-13
申请人： Babcock-Hitachi Co Ltd , バブコック日立株式会社
发明人： HARADA HIDEMASA , KIKUHARA SEIJI , SHIGEMORI HISANORI
IPC分类号： B23K9/028 , B23K9/00 , B23K9/04 , B23K9/167 , B23K33/00 , F22B37/22
摘要： PROBLEM TO BE SOLVED: To provide a welding method and a welding structure that hardly cause cracks due to creep damage in a weld heat affected zone by long time use even if a main steam temperature exceeds 560°C and facilitate control of welding and heat treatment.SOLUTION: A welding method includes the steps of: laminating a welding metal layer 10 of a predetermined build-up height using a Ni-based alloy welding material at the position for attaching a heat transfer tube, on an outer diameter surface of a header 1 comprising a ferrite-based steel; working a tube hole 1a substantially in the center of the welding metal layer 10; forming one side of a groove on a height-direction end surface of the welding metal layer 10; and welding the heat transfer tube 4 to the header 1 by butt welding, the heat transfer tube 4 having the other side of butt groove formed on the end surface and comprising an austenitic stainless steel or Ni-based alloy, to the header 1 . Also, a welded structure is obtained by the method.
摘要翻译：要解决的问题：即使主蒸汽温度超过560℃，提供焊接方法和焊接结构，即使主蒸汽温度超过560℃，焊接热影响区内的蠕变损伤也难以引起裂纹，并且易于控制焊接和热处理解决方案：一种焊接方法，包括以下步骤：使用Ni基合金焊接材料在用于安装传热管的位置上层叠具有预定堆积高度的焊接金属层10， 1包括铁素体钢; 在焊接金属层10的中心大致加工管孔1a; 在焊接金属层10的高度方向端面上形成槽的一侧; 并且通过对接焊接将传热管4焊接到集管1，将具有形成在端面上并包含奥氏体不锈钢或Ni基合金的对接槽的另一侧的传热管4连接到集管1。此外，通过该方法获得焊接结构。

3. 发明专利

JP2012108051A Method of predicting damage in heat-resistant steel weld zone 有权
标题翻译：在耐热钢焊接区域预测损伤的方法
公开(公告)号：JP2012108051A
公开(公告)日：2012-06-07
申请号：JP2010258132
申请日：2010-11-18
申请人： Babcock Hitachi Kk , バブコック日立株式会社
发明人： MURAKAMI EIJI , TAMURA KOJI , TSUTSUMI GO , KIKUHARA SEIJI , YAMAMOTO ATSUSHI
IPC分类号： G01N17/00 , G01N3/00 , G01N33/20
摘要： PROBLEM TO BE SOLVED: To provide a method by which damage in a weld zone under a multiaxial stress state can be accurately predicted responsive to a heat-resistant steel weld zone used actually.SOLUTION: In a damage prediction method for a heat-resistant steel weld zone, by which the distribution of stress acting on the heat-resistant steel weld zone is calculated and damage in the heat-resistant steel weld zone is predicted from the calculated value, as a parameter representing a stress state of the heat-resistant steel weld zone, M is used which is represented by M=A×σ×TF(A, B: coefficient, σ: maximum main stress, TF: stress multiaxial degree coefficient), thereby accurately predicting damage in a weld heat affected zone in a complicated stress state responsive to a heat-resistant steel weld zone used actually. Specifically, a relationship (a) between the parameter M and an increase speed of a number density of creep voids or a relationship (b) between the parameter M and an increase speed of an area ratio of creep voids is predetermined and the relationship (a) or (b) is used to estimate the number density of creep voids or the area ratio of creep voids.
摘要翻译：要解决的问题：提供一种可以根据实际使用的耐热钢焊接区域对多轴应力状态下的焊接区域的损伤进行准确预测的方法。解决方案：在用于耐热钢焊接区域的损伤预测方法中，计算作用在耐热钢焊接区域上的应力分布，并且从耐火钢焊接区域预测耐热钢焊接区域的损伤计算值作为表示耐热钢焊接区域的应力状态的参数，使用M表示为M = A×σ 1 ×TF B （A，B：系数，σ 1 ：最大主应力，TF：应力多轴度系数），从而准确预测焊缝中的损伤对应用于实际使用的耐热钢焊接区域的复杂应力状态的热影响区域。具体而言，规定了参数M与蠕变空隙数密度的增加速度的关系（a），以及参数M与蠕变空隙的面积比的增加速度之间的关系（b））或（b）用于估计蠕变空隙的数量密度或蠕变空隙的面积比。版权所有（C）2012，JPO＆INPIT

4. 发明专利

JP2003042407A Vapor temperature reducing device 审中-公开
标题翻译：蒸气温度降低装置
公开(公告)号：JP2003042407A
公开(公告)日：2003-02-13
申请号：JP2001231878
申请日：2001-07-31
申请人： Babcock Hitachi Kk , バブコック日立株式会社
发明人： KIKUHARA SEIJI , KURUMACHI TAKAHARU
IPC分类号： F22G5/12
摘要： PROBLEM TO BE SOLVED: To reduce the damage to the protective tube of vapor piping of a vapor temperature reducing device and improve the reliability of the vapor temperature reducing device.
SOLUTION: In the structure having a conventional protective tube 1 with an integral structure, one part of the protective tube 1 is cooled by spray water 5 to greatly contract, so that the protective tube is apt to be greatly bent. However, even when there is a temperature difference between the upper tube 1a and the lower tube 1b of the protective tube 1 made of two parts and provided in the vapor piping 2, the tubes can respectively slide in the longitudinal directions in the vapor piping 2. A differential expansion due to thermal contraction of the two parts (the upper tube 1a and the lower tube 1b) forming the protective tube 1 is absorbed by atomizing the spray water 5 from a spray nozzle 3a. Consequently, bending stress generated in the protective tube 1 is greatly decreased.
COPYRIGHT: (C)2003,JPO
摘要翻译：要解决的问题：减少对蒸汽降温装置的蒸气管道保护管的损害，提高蒸气降温装置的可靠性。解决方案：在具有一体结构的传统保护管1的结构中，保护管1的一部分被喷射水5冷却，从而大大收缩，使得保护管容易弯曲。然而，即使在蒸气管2中设置有由两部分构成的保护管1的上管1a和下管1b之间存在温差，管也可以分别在蒸气管2内沿长度方向滑动形成保护管1的两部分（上管1a和下管1b）由于热收缩而产生的不均匀膨胀被喷雾器3a雾化，从而被吸收。因此，保护管1中产生的弯曲应力大大降低。

5. 发明专利

JP2013140112A Ultrasonic damage detecting apparatus and ultrasonic damage detection method 审中-公开
标题翻译：超声波损伤检测装置及超声波损伤检测方法
公开(公告)号：JP2013140112A
公开(公告)日：2013-07-18
申请号：JP2012000968
申请日：2012-01-06
申请人： Babcock Hitachi Kk , バブコック日立株式会社
发明人： MICHIGUCHI YOSHIHIRO , KIKUHARA SEIJI , NAGASHIMA YOSHIAKI
IPC分类号： G01N29/04 , G01N29/24
摘要： PROBLEM TO BE SOLVED: To solve the problem of the conventional damage detecting apparatus and method for the inside of a material, detecting a nonlinear phenomenon by identifying frequencies in which: a signal having a large wave number is required to identify harmonics and partial harmonics; when a signal duration time is long, the accuracy of depth detection deteriorates, and a reflection wave from other parts and a reflection wave dependent on the shape of an analyte are measured thereby generating unnecessary noise signals; and it is difficult to surely detect damage at an early stage when the damage occurs.SOLUTION: Two ultrasonic waves having different frequencies to each other are used, one of which generates a nonlinear phenomenon and the other of which detects a nonlinear effect. Transmission timing of the ultrasonic wave for detecting a nonlinear phenomenon is controlled corresponding to respective positions of tension and compression stresses of the ultrasonic wave for generating a nonlinear phenomenon. A difference between reflection signals measured respectively at the positions of tension and compression stresses is detected to surely detect whether or not the nonlinear phenomenon occurs.
摘要翻译：要解决的问题为了解决传统的损伤检测装置和材料内部的方法的问题，通过识别频率来检测非线性现象，其中需要具有大波数的信号来识别谐波和部分谐波; 当信号持续时间长时，深度检测的精度恶化，并且测量其他部分的反射波和取决于分析物的形状的反射波，从而产生不必要的噪声信号; 并且在发生损伤的早期难以确定地检测到损伤。解决方案：使用两个具有不同频率的超声波，其中一个产生非线性现象，另一个检测非线性效应。对应于用于产生非线性现象的超声波的张力和压缩应力的各个位置来控制用于检测非线性现象的超声波的传输定时。检测分别在张力和压缩应力位置测量的反射信号之间的差异，以确定是否发生非线性现象。

6. 发明专利

JP2006136938A Non-consumable electrode welding torch and welding head with the head 有权
标题翻译：不可消耗电极焊接头和焊头与头
公开(公告)号：JP2006136938A
公开(公告)日：2006-06-01
申请号：JP2005225348
申请日：2005-08-03
申请人： Babcock Hitachi Kk , バブコック日立株式会社
发明人： WATANABE HIROSHI , AKEGA TOSHIHARU , MITSUHATA KOICHI , KANETANI MASAHIRO , UEDA KEIJI , EGASHIRA RYUICHI , KIKUHARA SEIJI , SATO YASUSHI , NAGASHIMA TOSHIJI , FUJIMOTO SHIGERU
IPC分类号： B23K9/29 , B23K9/16
摘要： PROBLEM TO BE SOLVED: To provide an ultra-flat non-consumable electrode welding torch which allows performing a welding operation through a narrow gap between adjacent piping such as welding of an abutting part between pipes of a boiler panel or the like and which is to be mounted on a compact automatic welding head, and also to provide a welding head equipped with this welding torch. SOLUTION: As a gas supply mechanism that supplies a shield gas to a welding section formed at the tip of the non-consumable electrode 2 through inside of the torch body 1 for the non-consumable electrode welding, a gas supply path 10 is provided for supplying the shield gas from an outer gas space 11 in a double ring-shaped gas space 11 and 12 provided around an non-consumable electrode 2 and divided by a partition wall 15, to an inner gas space 12 through a plurality of orifices 13 provided at regular intervals in the partition wall 15, and the gas is blown from the inner gas space 12 to the region around the non-consumable electrode 2 through a metal mesh plate 5. A gas outlet opening 12a provided in the inner gas space 12 is oriented in a different direction from the gas blowing direction through the orifices 13. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种超扁平的非消耗性电极焊枪，其允许通过相邻管道之间的窄间隙进行焊接操作，例如焊接锅炉板等的管道之间的邻接部分和其将被安装在紧凑的自动焊接头上，并且还提供配备有该焊枪的焊接头。解决方案：作为通过用于非消耗性电极焊接的炬体1内部的形成在非消耗电极2的前端的焊接部分提供保护气体的气体供给机构，气体供给路径10 被设置用于将外部气体空间11的外部气体空间11供给到设置在非消耗性电极2周围并被分隔壁15分割的双环状气体空间11和12中的内部气体空间12中的多个在分隔壁15中规则间隔设置的孔13，通过金属网板5将气体从内部气体空间12吹送到不可消耗电极2周围的区域。设置在内部气体中的气体出口12a 空间12通过孔13沿与气体吹送方向不同的方向定向。（C）2006年，JPO和NCIPI

7. 发明专利

JP2006110571A All positioned automatic welding head and method for operating the same 有权
标题翻译：所有定位的自动焊接头及其操作方法
公开(公告)号：JP2006110571A
公开(公告)日：2006-04-27
申请号：JP2004298353
申请日：2004-10-13
申请人： Babcock Hitachi Kk , バブコック日立株式会社
发明人： WATANABE HIROSHI , AKEGA TOSHIHARU , KANETANI MASAHIRO , MITSUHATA KOICHI , UEDA KEIJI , KIKUHARA SEIJI , NAGASHIMA TOSHIJI , FUJIMOTO SHIGERU
IPC分类号： B23K9/028 , B23K9/127 , B23K37/02 , B23K101/06
CPC分类号： B23K37/0276 , B23K9/0286 , B23K9/127 , B23K9/167 , B23K9/173 , B23K37/0533 , B23K2201/06
摘要： PROBLEM TO BE SOLVED: To provide a welding head in which the torch part can be easily moved in the circumferential direction of the outer circumferential part and in the vertical movement direction of the tube to be welded even in a narrow gap. SOLUTION: The welding head is equipped with a ring 1 for torch rotation provided with a torch stand 10 for supporting a torch 7 at the tip part and rotating around the circumference of the tube 22 to be welded in such a manner that its central axis is made coincident with the central axis of the tube 22, a ring 2 for vertically moving the torch arranged on a concentric circle with the ring 1 inside the ring 1, the first gear group of rotatively driving the ring 1 around the tube 22, the second gear group arranged in parallel with the first gear group and rotatively driving the ring 2 around the tube 22, a driving shaft 27 of jointly driving the two sets of gear groups, a motor 4 for torch rotation of driving the driving shaft 27, the second gear group, amotor 5 capable of driving the ring 2 while rotating in the same direction to the ring 1 or the direction reverse thereto at a speed equal to that of the first gear group or at a speed higher or lower than that of the first gear group for rotatively driving the ring 2 around the tube 22 and also vertically moving the torch 7. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：为了提供一种焊接头，其中炬部分可以容易地在狭窄的间隙中沿外周部分的圆周方向和待焊接的管的垂直移动方向移动。
解决方案：焊头装备有用于割炬旋转的环1，其具有用于在顶端部分处支撑炬7并且以被焊接的管22的圆周方向旋转的割炬支架10，中心轴与管22的中心轴线重合，用于将环1垂直移动到同心圆上的环2，环1位于环1内，第一齿轮组围绕管22旋转地驱动环1 所述第二齿轮组与所述第一齿轮组平行布置并且绕所述管22旋转地驱动所述环2，共同驱动所述两组齿轮组的驱动轴27，用于驱动所述驱动轴27的割炬旋转的马达4 第二齿轮组，能够以与第一齿轮组的速度相同的速度或以比第一齿轮组的速度高的或低于第一齿轮组的速度沿相同方向旋转到环1或与其相反的方向驱动环2的变速杆5 第一齿轮组 p用于围绕管22旋转驱动环2，并且还垂直移动割炬7.版权所有（C）2006，JPO＆NCIPI

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