专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明专利

JPH08136517A METHOD AND APPARATUS FOR ULTRASONIC FLAW DETECTION 失效
公开(公告)号：JPH08136517A
公开(公告)日：1996-05-31
申请号：JP27907194
申请日：1994-11-14
申请人： HITACHI LTD , HITACHI ENG CO LTD
发明人： KAMEDA MASAKAZU , TATEYAMA MASARU , NOJIMA HISAO , KIKUCHI OSAMU , KOSHIRAE MITSUO , KUMASAKA KENJI , SEGAWA NOBUYUKI , SASAKI TSUKASA
IPC分类号： G01N29/44 , G01N29/22
摘要： PURPOSE: To enhance efficiency in the evaluation of data and the flaw detection work by recording the data obtained through ultrasonic flaw detection in parallel with the flaw detection work. CONSTITUTION: The ultrasonic flaw detection apparatus comprises a driver for holding an ultrasonic probe and scanning over a specimen, a controller for controlling the scanning of the driver, an ultrasonic flaw detector 20 for amplifying a receiving signal in ultrasonic flaw detection and outputting an ultrasonic video signal, and a data recorder 5 for capturing the video signal using the positional signal of the probe as a sync signal and recording the video signal automatically on an external memory medium. The excitation timing for the total refraction angle is time shared in the ultrasonic flaw detection and the receiving signal at each angle us converted 6 into a digital data in synchronism with that timing. The data is then stored alternately in two alternative buffer memories 9, 10 provided in the recorder 5. A data stored in one of two alternative butter memories 9, 10, into which the digital data associated with flaw detection is not written, is then transferred to an external memory medium 15a.

2. 发明专利

JPH07181171A ULTRASONIC FLAW-DETECTOR 失效
公开(公告)号：JPH07181171A
公开(公告)日：1995-07-21
申请号：JP32708393
申请日：1993-12-24
申请人： HITACHI LTD , HITACHI ENG CO LTD
发明人： SASAKI TSUKASA , KIMURA YUTAKA , KANDA KIMIO
IPC分类号： G01N29/26
摘要： PURPOSE:To provide a small, lightweight and easily-detachable ultrasonic flaw- detector for detecting a flaw in a straight pipe, an elbow welded part, etc., by a method wherein a probe movement part installed at a circumferential ring is provided with a first ultrasonic probe and a probe holding arm installed at the probe movement part is provided with a second ultrasonic probe. CONSTITUTION:A circumferential ring 24 is supported by rollers 25, 26 for circumferential ring support, and it is driven by pinions 27, 28 for circumferential ring drive. A probe movement part 31 is attached to an arm 6 installed at the ring 24. An air cylinder 32, a probe mounting part 33, an ultrasonic probe 7, a probe mounting part 34, an air cylinder 35, a probe support arm 36 and an ultrasonic probe 37 are attached to the movement part 31. The probes 7, 37 are held by the arm 36 in the length direction of a pipe with reference to one probe movement part 31. As a result, the arm 6 becomes short by the protruding-length portion of the arm 36, and a curved part such as an elbow or the like in the pipe does not constitute an obstacle. In addition, a load which is applied to the circumferential ring is reduced. and also a driving gear can be miniaturized.

3. 发明专利

JPH01237450A ULTRASONIC FLAW DETECTING APPARATUS 失效
公开(公告)号：JPH01237450A
公开(公告)日：1989-09-21
申请号：JP6319388
申请日：1988-03-18
申请人： HITACHI LTD , HITACHI ENG CO LTD
发明人： TAKAKU KAZUO , KANDA KIMIO , TATEYAMA MASARU , KAKINUMA YUKIO , SASAKI TSUKASA , UOZUMI HIROTO
IPC分类号： G01N29/44 , G01N29/04 , G01N29/30
摘要： PURPOSE:To improve checking efficiency, by providing an ultrasonic flaw detecting device, a distance-amplitude correcting (DAC) device, an operating panel and a digital memory, and performing the preparation of correction and the like of a DAC curve readily. CONSTITUTION:An ultrasonic flaw detecting device 5 provided with a DAC device 6 can perform the preparation, reading, correction, storing, erasing and the like of a DAC curve at a high speed based on the commands from an operating panel. Checking personnel do not feel waiting times even in a severe environment such as in an atomic power plant, and checking efficiency can be improved. A digital memory 11 is provided for the individual beam of a plurality of ultrasonic beams. Therefore, the individual DAC curve can be stored independently. When the ultrasonic beam is transmitted, the DAC curve is outputted in synchronization with every beam. Therefore, the optimum DAC curve can be obtained for the three ultrasonic beams of 0 deg., 45 deg. and 60 deg.. The checking efficiency, the checking reliability and the like can be improved.

4. 发明专利

JPS6480855A ULTRASONIC FLAW DETECTOR 失效
公开(公告)号：JPS6480855A
公开(公告)日：1989-03-27
申请号：JP23726387
申请日：1987-09-24
申请人： HITACHI LTD , HITACHI ENG CO LTD
发明人： SASAKI TSUKASA , NARUSE AKISUKE , UOZUMI HIROTO , TAKAKU KAZUO , KIMURA YUTAKA
IPC分类号： G21C17/003 , G01N29/04 , G21C17/00
摘要： PURPOSE:To obtain the title ultrasonic flaw detector which is operated by a remote controller and performs both normal flaw detection and accurate flaw detection by itself by varying the quantity of engagement between gears for transmitting the power of each driving part properly according to circumstances. CONSTITUTION:An operator of the detector judges which of the normal flaw detection and accurate flaw detection is performed at a stage of judgement 50 and operates the controller panel 51 of the ultrasonic flaw detecting device 5. When the normal flaw detection mode 52 is specified, the distance between respective driving part gear shafts of the ultrasonic flaw detector 5 increases, but the quantity of engagement between the gears decreases, thereby performing the fast flaw detection with low accuracy. When the accurate flaw detection mode 53 is specified, on the other hand, the distance between the gear shafts of the respective driving parts of the ultrasonic flaw detector 5 decreases and the quantity of engagement between the gears increases, thereby performing the slow flaw detection with high accuracy.

5. 发明专利

JPS63266354A ULTRASONIC FLAW DETECTING METHOD 失效
公开(公告)号：JPS63266354A
公开(公告)日：1988-11-02
申请号：JP10007187
申请日：1987-04-24
申请人： HITACHI LTD , HITACHI ENG CO LTD
发明人： TAKAKU KAZUO , SASAKI TSUKASA , UOZUMI HIROTO , TAKAHASHI FUMINOBU , KAKINUMA YUKIO , KANDA KIMIO
IPC分类号： G01N29/44 , G01N29/04 , G01N29/06 , G01N29/22
摘要： PURPOSE:To display a crack in the direction perpendicular to the bottom face, as a pattern being simular to an actual shape, by correcting the coordinate of an echo source, when the echo source brought to grouping crosses the face opposed to the face for allowing a probe to adhere tightly. CONSTITUTION:Grouping of an echo source is executed by denoting the paths of DELTAx=0, 1, 2...-1, -2... as L0, L1, L2...Lm1, Lm2... respectively, deriving the differences L0-L1, L1-L2, L2-L3...L0-Lm1, Lm1-Lm2... to each adjacent path, and setting the echo source in which said value is smaller than some constant K, as the same group. In this case, K is, for instance, a value in the vicinity of a data collecting pitch. After the grouping of the echo source has been executed, novel coordinate axes X-Y0 in which a point P0 where the group is crossed with the bottom face is an origin is considered, and the mean value (a) of gradients of each echo source P0, P1, P2... is derived. Subsequently, this mean value (a) and a value of the Z axis of each echo source are used, and PC1, PC2... are obtained as corrected echo sources.

6. 发明专利

JPS61148366A ULTRASONIC PROBE 失效
公开(公告)号：JPS61148366A
公开(公告)日：1986-07-07
申请号：JP26848384
申请日：1984-12-21
申请人： HITACHI LTD , HITACHI ENG CO LTD
发明人： TAKAKU KAZUO , NARUSE AKISUKE , SASAKI TSUKASA , KANDA KIMIO
IPC分类号： G01N29/24 , G01N29/28
摘要： PURPOSE:To obtain a probe ideal for the flaw detection of a rugged object to be inspected such as welding beads, by making the surface abutting on a tubular object to be inspected into a shape of a concave column with the circumference-wise end thereof bevelled at a specified angle. CONSTITUTION:The surface of a wedge 2 is worked to match the shape of an object 9 to be detected so that the center of the curvature radius 13 will fall on the axis of an ultrasonic beam 10 with the angle of refraction of 0 deg.. The angle between the front and the contact surface of a wedge shall be such to overcome a projection or the lice easily and has a correction face 14. The angle between the rear surface and the contact surface 16 thereof also has a correction face 15. It should be noted that the face 15 shall be as deep as possible and the face 16 as small as possible. The probe thus obtained is appli cable for the direction method as well as the gap method. It is also applicable for the single detection as well as the double-split type and further for the type with a shoe and the wedge type. This facilitates the circumferential ultra sonic flaw detection about a weld part of a piping joint.

7. 发明专利

JP2007017358A Inspection device and inspection method for diffuser of jet pump 审中-公开
标题翻译：喷气发动机检测装置及检查方法
公开(公告)号：JP2007017358A
公开(公告)日：2007-01-25
申请号：JP2005201031
申请日：2005-07-11
申请人： Hitachi Eng Co Ltd , Hitachi Ltd , 日立エンジニアリング株式会社 , 株式会社日立製作所
发明人： NAKAMURA MOTOYUKI , AKASU AKIRA , IKEDA KAZUTOSHI , SASAKI TSUKASA
IPC分类号： G21C17/003 , G21C15/25
CPC分类号： Y02E30/40
摘要： PROBLEM TO BE SOLVED: To provide an inspection device and an inspection method for a diffuser of a jet pump, capable of moving and installing accurately a sensor of an inspection device body, wherein inspection position accuracy is excellent and an inspection work is simple.
SOLUTION: In this inspection device for the diffuser, the inspection device body 2 is inserted into the diffuser from which an inlet mixer is dismounted, and inspection is performed from the inner surface by the sensor of the inspection device body 2, and the inspection device body 2 is arranged movably in a protection cylinder 1 inserted inside from an upper opening of the diffuser. A positioning member 5 on which a recessed groove 6 is formed used as a position regulation means is provided on the upper end of the protection cylinder 1, and the recessed groove 6 is engaged with a projection part on the upper end of the diffuser. The inspection device body 2 is constituted of an axial-direction moving means 10 for adjusting a height-direction position of the sensor 43, a circumferential-direction driving means 20 for adjusting circumferential-direction movement of the sensor, a clamp 30 of the position regulation means for pressing the inspection device body onto the diffuser inner surface, and a sensor means 40 for inspecting an inspection object portion.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：为了提供一种用于喷射泵的扩散器的检查装置和检查方法，其能够精确地移动和安装检查装置主体的传感器，其中检查位置精度优异并且检查工作是简单。解决方案：在该扩散器用检查装置中，将检查装置主体2插入到其中拆下入口混合器的扩散器中，并且通过检查装置主体2的传感器从内表面进行检查，检查装置主体2可移动地布置在从扩散器的上部开口插入的保护筒1中。在保护筒1的上端设置有用于形成凹槽6的定位构件5作为位置调节装置，并且凹槽6与扩散器的上端的突出部接合。检查装置主体2由用于调节传感器43的高度方向位置的轴向移动装置10，用于调节传感器的周向运动的周向驱动装置20，位置的夹具30 用于将检查装置主体按压到扩散器内表面上的调节装置和用于检查检查对象部分的传感器装置40。版权所有（C）2007，JPO＆INPIT

8. 发明专利

JPH06308096A ULTRASONIC FLAW DETECTION METHOD AND DEVICE FOR L-SHAPED BOLT 失效
公开(公告)号：JPH06308096A
公开(公告)日：1994-11-04
申请号：JP9300393
申请日：1993-04-20
申请人： HITACHI LTD , HITACHI ENG CO LTD
发明人： SASAKI TSUKASA , KIMURA YUTAKA , AKASU AKIRA , KANDA KIMIO
IPC分类号： G01N29/04
摘要： PURPOSE:To provide an L-shaped bolt ultrasonic flaw detection technique for performing the ultrasonic flaw detection test of the soundness of an L-shaped bolt positively and efficiently. CONSTITUTION:An ultrasonic probe 28 is set at an inclination angle so that an ultrasonic beam 29 can be thrown to the corner portion of an AHC (Access Hole Cover) mounting bolt 25 which is an L-shaped bolt and then an ultrasonic beam 29 is applied while rotating the ultrasonic probe 28 around a center axis 0-0 of the AHC mounting bolt 25.

9. 发明专利

JPH06273393A ULTRASONIC FLAW DETECTOR 失效
公开(公告)号：JPH06273393A
公开(公告)日：1994-09-30
申请号：JP6205893
申请日：1993-03-22
申请人： HITACHI LTD , HITACHI ENG CO LTD
发明人： SASAKI TSUKASA , KIMURA YUTAKA , KANDA KIMIO
IPC分类号： G01N29/04 , G01N29/26 , G01N29/10
摘要： PURPOSE:To allow ultrasonic flaw detection test at a welded part of a pressure vessel for boiling water type atomic reactor comprising a drum part and a supporting skirt part having different outer diameters by laying a rail dedicated for the welded part between the drum part and the supporting skirt part. CONSTITUTION:The ultrasonic flaw detector 100 comprises a body frame 110 running on a track 225, a first arm 10 coupled with the body frame 110, a second arm 20 having an ultrasonic probe 50 fixed at the tip thereof, an arm supporting part 30 coupling the first and second arms 10, 20, a motor 31, a pinion 32, a guide roller 33, and a rack 11. The detector 100 is further provided with means for shifting the arm supporting part 30 along the first arm 10. The second arm 20 is supported by the arm supporting part 30 through a supporting pin 21 so that the second arm 20 can rotate around an axis parallel with the track 225.

10. 发明专利

JPH04128649A ULTRASONIC DETECTOR 失效
公开(公告)号：JPH04128649A
公开(公告)日：1992-04-30
申请号：JP24761290
申请日：1990-09-19
申请人： HITACHI LTD , HITACHI ENG CO LTD
发明人： KIMURA YUTAKA , ASANO KUNITAKA , SASAKI TSUKASA
IPC分类号： G01N29/04 , G01N29/26 , G21C17/003
摘要： PURPOSE:To dispense with a long mast for effectively miniaturizing, and to greatly facilitate assembling and fitting work by stably securing the distance between the detector and an object to be examined by means of a scanner part, and by supporting the scanner with chains. CONSTITUTION:In the inside of an inspection device body 1, a scanner to be used for maintaining rigidity in the circumferential direction of a vessel, and drums 11 for winding up hoisting chains 5 in the perpendicular direction to the scanner are provided, so that the scanner 4 can be lifted or lowered by turning the drums. By controlling the rotation of the drums, a prescribed height can be obtained. The scanner 4 is mounted with a ultrasonic probe 12, and this is moved laterally by means of a driving mechanism 14. By turning a propeller, a thrust is obtained, and by means of spacers 13 the distance between the probe and an object to be examined is maintained so as to be constant. In the case of ultrasonic examination, to carry out angle beam testing in which ultrasonic waves are obliquely incident on the object to be examined, the distance between the probe and the object to be examined must be kept constant.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式