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1. 发明专利

JPS594514B2 JPS594514B2 - 失效
公开(公告)号：JPS594514B2
公开(公告)日：1984-01-30
申请号：JP12714681
申请日：1981-08-12
申请人： Kobe Steel Ltd
发明人： TANAKA YOSHIRO , FUJII NORITSUGU , AKAGI KAZUO , KUDAMATSU RYUJIRO
IPC分类号： C23G3/04 , G21C3/06
CPC分类号： C23G3/04

2. 发明专利

JPH06347242A METHOD AND APPARATUS FOR MEASUREMENT OF INSIDE ROUGHNESS OF SLENDER PIPE 失效
公开(公告)号：JPH06347242A
公开(公告)日：1994-12-20
申请号：JP13732793
申请日：1993-06-08
申请人： KOBE STEEL LTD
发明人： SUZUKI AKIO , YANAI TOSHIYUKI , AKAMATSU MASARU , FUJII NORITSUGU
IPC分类号： G01B11/30 , G01N21/88 , G01N21/954
摘要： PURPOSE:To measure roughness inside a long slender pipe, in a nondestructive manner. CONSTITUTION:A laser beam which is incident on one end of a slender pipe 2 is converged once on the central line of the slender pipe 2, it is then diffused again, the polarizing direction of the beam which is incident on one end of the slender pipe 2 is set so as to be at 90 deg. with reference to a reflecting face or in a direction close to it, the laser beam which is reflected in a multiple manner inside the slender pipe 2 and which is radiated is condensed on a photodetector 40 by a condensing lens 30, and a signal processing circuit 50 finds the inside roughness of the slender pipe 2 on the basis of the intensity of the radiated beam which is measured by the photodetector 40. By this constitution, the inside roughness of the slender pipe 2 which is long can be inspected in a nondestructive manner.

3. 发明专利

JPS6385310A APPARATUS FOR MEASURING THICKNESS OF PIPE BODY 失效
公开(公告)号：JPS6385310A
公开(公告)日：1988-04-15
申请号：JP23244986
申请日：1986-09-29
申请人： KOBE STEEL LTD
发明人： SUZUKI AKIO , KOTANI MANABU , FUJII NORITSUGU , NAKANO YURIO , SAITO TOMIO
IPC分类号： G01B21/00 , G01B5/06 , G01B21/08
摘要： PURPOSE:To prevent the generation of the abnormal abrasion of a probe sliding part at the time of the insertion and extraction of a probe by avoiding the generation of the difference in level at the pipe end facing part of a pipe to be inspected and an adjusting pipe, by supporting the pipe end part of the pipe to be inspected and that of the adjusting pipe facing thereto in the stage mounted on a position prescribing roller. CONSTITUTION:An adjusting pipe 24 arranged in coaxial relation to a pipe 25 to be inspected is used as a guide to insert and remove a probe into and from the pipe 25 to be inspected. At this time, a turning roller shaft 31 is supported at both ends thereof to be suppressed in its strain and a turning roller 26 is fixed to said shaft 31 at the required position thereof and the facing pipe end part of the adjusting pipe 24 and the pipe 25 to be inspected is supported by said roller 26 without generating difference in level. At the time of measurement, the turning roller 26 rotates at the speed equal to the speed of other turning rollers 30, 41, 42 and, by this mechanism, the deflection of the adjusting pipe 24 and the pipe 25 to be inspected at the facing pipe end part thereof in the pipe radius directions is suppressed and the probe can be smoothly inserted and removed.

4. 发明专利

JPH0457207B2 失效
公开(公告)号：JPH0457207B2
公开(公告)日：1992-09-10
申请号：JP23244986
申请日：1986-09-29
申请人： KOBE STEEL LTD
发明人： SUZUKI AKIO , KOTANI MANABU , FUJII NORITSUGU , NAKANO YURIO , SAITO TOMIO
IPC分类号： G01B21/00 , G01B5/06 , G01B21/08

5. 发明专利

JPS62204107A MEASURING METHOD FOR LINER THICKNESS OF DUPLEX TUBE 失效
公开(公告)号：JPS62204107A
公开(公告)日：1987-09-08
申请号：JP4802686
申请日：1986-03-04
申请人： KOBE STEEL LTD
发明人： FUJII NORITSUGU
IPC分类号： G01B17/02
摘要： PURPOSE:To measure liner thickness accurately over the entire tube surface to the overall length by allowing an ultrasonic probe to track a duplex tube through a tracking mechanism. CONSTITUTION:A liner tube stock 2 is run in water 3 and the probe 5 supported by the two-axial tracking mechanism is set by turning and adjusting an up/down shaft 23 so that the axis of the probe is at right angles to the axis of the tube stock 2. Then, the tube stock 2 is conveyed axially by a feed device 4 while rotated; and an ultrasonic wave is transmitted by the probe 5 and its reflection echo is received. The thickness of th liner 2a is measured from a boundary echo and an echo from the bottom surface of the liner 2a. If the sub stock 2 is curved, a holding base 26 and a support body 24 move integrally in the direction of a lateral shaft 27 through a tracking roller 31 which rolls in contact with the tube, and moves up and down in the direction of a longitudinal shaft 34. Therefore, the probe 5 tracks the curvature, etc., in constant relation with the tube stock 2 and receives the echo from the boundary part under stable conditions. Further, attenuation is performed by an attenuating DAC circuit on the rear side of the bottom surface echo to eliminate the influence of following echoes.

6. 发明专利

JPS58135451A ULTRASONIC INSPECTION METHOD FOR MATERIAL 失效
公开(公告)号：JPS58135451A
公开(公告)日：1983-08-12
申请号：JP1793582
申请日：1982-02-05
申请人： KOBE STEEL LTD , TOKYO KEIKI KK
发明人： TAKAHASHI NOBUO , TANAKA YOSHIROU , FUJII NORITSUGU
IPC分类号： G01N29/04 , G01N29/27
摘要： PURPOSE:To improve both efficiency of inspection and reliability of result of inspection, by setting in parallel ultrasonic probes at least >=3 areas of an inspection line and feeding successively the objects to be inspected into the inspection line with an interval exceeding the largest one of attaching spaces of the ultrasonic probes. CONSTITUTION:Detectors 16A, 16B-19A and 19B are provided around probes 12-15 which inspect a specimen I such as a metallic bar, a metallic pipe, etc. and at tow areas before and after the probes to feeding directions (a) and (b) of the specimen I. The tip part of the specimen I which is fed into an inspection line 1 is within a space D4 between detectors 8 and 9. Then the distance D5 between said tip part and the detector 9 is set larger than the largest one of attachment spaces D1-D3 of probes 12-15. In such a way, the preceding and next specimens are fed successively into the inspection line 1, and consecutive two specimens are inspected at one time by the probes 12-15.

7. 发明专利

JPS5377553A MEASURING METHOD AND APPARATUS FOR BENDING OF LONG SCALE CYLINDER 失效
公开(公告)号：JPS5377553A
公开(公告)日：1978-07-10
申请号：JP15442676
申请日：1976-12-20
申请人： KOBE STEEL LTD
发明人： TAMURA MASAMITSU , KAWAMURA TERUAKI , TANAKA MINETAKA , NAKAMURA SHIGEHARU , FUJII NORITSUGU
IPC分类号： G01B21/20 , G01B5/20 , G01B5/28

8. 发明专利

JPH0254165A VORTEX FLAW DETECTION METHOD OF PIPE AND BAR MATERIAL 失效
公开(公告)号：JPH0254165A
公开(公告)日：1990-02-23
申请号：JP20476888
申请日：1988-08-19
申请人： KOBE STEEL LTD , EDDIO CORP
发明人： TAKAISHI KAZUHIDE , SAEKI AKIRA , KADONAGA TOSHIKI , FUJII NORITSUGU
IPC分类号： G01B7/34 , G01B7/00 , G01N27/90
摘要： PURPOSE:To detect a facial flaw with detection sensitivity close to that for a flaw along an axial direction of a pipe and bar material even if said facial flaw is a slanted short flaw by a method wherein a coil diameter of a detection coil is determined by the length of a facial flaw so that substantially non- directional detection sensitivity is provided. CONSTITUTION:A coil diameter of a detection coil is specified to a size with which the sensitivity characteristics of the detection coil is close to substantially non-directional characteristics with respect to the average length of a facial flaw. By determining the coil diameter of the detection coil with the flaw length considered, a facial slanted flaw on the surface of a material to be inspected can be detected with detection sensitivity close to that for flaws along the axial direction of a pipe and bar material with high reliability even though the facial flaw is a short slanted one.

9. 发明专利

JPS6285859A ULTRASONIC FLAW DETECTING METHOD FOR STAINLESS STEEL COATED TUBE 失效
公开(公告)号：JPS6285859A
公开(公告)日：1987-04-20
申请号：JP21344885
申请日：1985-09-25
申请人： KOBE STEEL LTD
发明人： FUJII NORITSUGU
IPC分类号： G01N29/04
摘要： PURPOSE:To increase an SN ratio by using an ultrasonic flaw detector and an ultrasonic probe which have 5-15MHz wide-band frequency characteristics. CONSTITUTION:A coated tube 2 while rotated on its axis is sent axially, and a lateral wave ultrasonic beam is transmitted by the ultrasonic probe 4 and its reflection echo is received. In this case, the ultrasonic flaw detector 5 uses a detector which has 5-15MHz wide band frequency characteristics. Therefore, a high frequency component is attenuated in a member and a low frequency component remains, so a defect echo is obtained highly and the SN ratio is improved. Further, the probe 4 uses a probe having 5-15MHz wide band frequency characteristics as well as the flaw detector 5. When frequency characteristics has a wide band, the pulse width is narrow, so a grove-shaped echo received by the probe 4 within a time interval is reduced and the probe 4 can be arranged so that the grove-shaped echo is not received as much as possible. Thus, the SN ratio is improved.

10. 发明专利

JPS59192935A Leak detector for pipe 失效
标题翻译：漏管检测器
公开(公告)号：JPS59192935A
公开(公告)日：1984-11-01
申请号：JP4243783
申请日：1983-03-16
申请人： Kobe Steel Ltd
发明人： FUJII NORITSUGU , NISHIMURA TOSHIMITSU
IPC分类号： G01M3/02 , G01M3/28
CPC分类号： G01M3/2846 , G01M3/022
摘要： PURPOSE:To inspect whether there is holes in pipes, two by two, to improve inspection efficiency by providing a detector, and opening and closing a solenoid valve and filling each piping system and a pipe to be tested or each piping system, conduit and a reference pipe with pressurized air for measurement. CONSTITUTION:Opening and shutting valves 12 and 22 are opened to fit pipe chucks 13a and 23a to one-side terminals of pipes P1 and P2 to be tested, and the other-side terminals are sealed by pipe chucks 13b and 23b and connected to the pipe 10 of a system A and the pipe 20 of a system B, respectively. The opening and shutting valve 31 is closed. Then, a measurement start switch is turned on to generate a valve opening signal I0 by a controller 58 and close feed/discharge solenoid valves 4, 11, 21, and 41. Then, the feed/discharge solenoid valves are closed a time T0 later to fill a main piping 2, A-system pipe 10, B- system pipe 20, C-system pipe 40, and pipes P1 and P2 to be tested with pressurized air with specific pressure, and the output of a transducer 50 is inputted to a relay 55 further a time TS later. If abnormality occurs to the pipes P1 and P2 to be tested, a defective display lamp 57b turns on.
摘要翻译：目的：检查管道中是否有孔，两个两个，通过提供检测器来提高检查效率，并打开和关闭电磁阀，并填充每个管道系统和待测试的管道，或每个管道系统，管道和参考管用加压空气进行测量。构成：打开和关闭阀12和22打开以将管卡盘13a和23a装配到要测试的管P1和P2的一侧端子，并且另一侧端子被管卡盘13b和23b密封并连接到系统A的管道10和系统B的管道20。打开和关闭阀31关闭。然后，通过控制器58接通测量启动开关以产生开阀信号I0，并关闭进给/放电电磁阀4,11,21和41.然后，进给/放电电磁阀在时间T0后闭合以特定压力的加压空气填充主管道2，A系统管10，B-系统管20，C系统管40和管P1和P2，并将换能器50的输出输入后续的时间TS的继电器55。如果要测试的管道P1和P2发生异常，则有缺陷的显示灯57b导通。

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