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31. 发明专利

JP2005037223A Ultrasonic flaw detector, ultrasonic flaw detection program and ultrasonic flaw detection method 有权
标题翻译：超声波检测器，超声波检测程序和超声波检测方法
公开(公告)号：JP2005037223A
公开(公告)日：2005-02-10
申请号：JP2003273986
申请日：2003-07-14
申请人： Jfe Steel Kk , Jfeスチール株式会社
发明人： IIZUKA YUKIMICHI , NAKANOSONO MAKOTO
IPC分类号： G01N29/04 , G01N29/08
CPC分类号： G01N2291/048
摘要： PROBLEM TO BE SOLVED: To inexpensively multi-channelize, constantly maintain a detection activity of each multi-channel, set an optimal flaw detection condition even if an inspected material has a different surface roughness and sensitively scan a flaw. SOLUTION: An ultrasonic flaw detector has a transmitting probe 5 for converting a pulse signal S P from a transmitting part 1 into a surface wave and transmitting it on a surface of the inspected material 13, a receiving probe 6 for converting the surface wave transmitted on the surface into a transmitted signal S T and NWBPFs 10 1 -10 5 having center frequencies set in response to the detection activities and specific bandwidths set so as to have a predetermined fluctuation value in the multi-channel of the transmitted signal S T of the flaw and a predetermined S/N value of the transmitted signal S T on a sound face of the inspected material 13. The ultrasonic flaw detector is also provided with selecting switches 8, 9 for selecting one of the NWBPFs 10 1 -10 5 and supplying a transmitted signal S T1 , and an evaluation part 12 for determining the existence of the open flaw 14 based on intensity of the transmitted signal on the sound face of the inspected material 13 and a threshold of the open flaw 14 in response to a transmitted signal S SL from the selected NWBPF 10. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：为了便宜地多通道化，不断维持每个多通道的检测活动，即使被检查的材料具有不同的表面粗糙度并且敏感地扫描缺陷，也可以设置最佳的探伤条件。解决方案：超声波探伤器具有发射探头5，用于将来自发射部分1的脉冲信号S P 转换为表面波，并将其传输到被检查材料13的表面上接收探头6，用于将表面上传输的表面波转换成具有中心频率设定的发送信号S T 和NWBPF 10 -10 5 响应于检测活动和特定带宽被设置为具有在缺陷的发送信号S T 的多信道中的预定波动值和发送信号的预定S / N值在检查材料13的声音面上的S T 。超声波探伤仪还设置有选择开关8,9，用于选择NWBPF 10 < SB> 5 并提供发送信号S T1 ，以及评估部分12，用于基于发送信号的强度确定开放缺陷14的存在 l被检查材料13的声音面和开放缺陷14的阈值响应来自所选择的NWBPF 10的发送信号S SL 。（C）2005，JPO＆NCIPI

32. 发明专利

JP2004340807A Ultrasonic flaw detection method and device 有权
公开(公告)号：JP2004340807A
公开(公告)日：2004-12-02
申请号：JP2003138991
申请日：2003-05-16
申请人： Jfe Steel Kk , Jfeスチール株式会社
发明人： YOTSUTSUJI JUNICHI , IIZUKA YUKIMICHI
IPC分类号： G01N29/04 , G01N29/12 , G01N29/08
CPC分类号： G01N29/12 , G01N2291/048
摘要： PROBLEM TO BE SOLVED: To provide a method for detecting a micro cold crimping defect by an ultrasonic wave, and a device used therefor. SOLUTION: An ultrasonic wave is allowed to enter a joint surface, to thereby detect the micro cold crimping defect from a waveform strain of a transmitted wave to an incident wave. When the ultrasonic wave is a longitudinal wave, the ultrasonic wave is allowed to enter the joint surface in a plurality of times with changed amplitudes so that each amplitude becomes vertical to the joint surface, and the amplitude ratio between a fundamental wave and a higher harmonic is determined by performing frequency analysis of the waveform of the transmitted wave to the incident wave for each incidence, and existence of the micro-cold lapping defect is determined by comparing each amplitude ratio acquired relative to each incidence. In the case of a transverse wave, the ultrasonic wave is allowed to enter the joint surface in a plurality of times with changed frequencies so that the amplitude becomes parallel to the joint surface, and the amplitude ratio between the fundamental wave and the higher harmonic is determined by performing frequency analysis of the waveform of the transmitted wave to the incident wave for each incidence, and existence of the micro cold crimping defect is determined by comparing each amplitude ratio acquired for each incidence. COPYRIGHT: (C)2005,JPO&NCIPI

33. 发明专利

JP2008286640A Device and method for ultrasonic flaw detection of pipe 有权
标题翻译：用于超声波检测管的装置和方法
公开(公告)号：JP2008286640A
公开(公告)日：2008-11-27
申请号：JP2007131981
申请日：2007-05-17
申请人： Jfe Steel Kk , Jfeスチール株式会社
发明人： IIZUKA YUKIMICHI , YUASA DAIJIRO , SAKASHITA SHIGETO
IPC分类号： G01N29/04 , G01N29/06 , G01N29/44
摘要： PROBLEM TO BE SOLVED: To realize tandem flaw detection even for a steel pipe with thickened wall portions on inner surface.
SOLUTION: This device is provided with a transmitting part 6 for making an ultrasonic wave incident into the weld zone of a welded part 2 in a pipe axis direction of a pipe (steel pipe 1) and a receiving part 7 for receiving a part or whole of the reflected wave 9 reflected by the welded zone 2. The transmitting part 6 and the receiving part 7 are equipped with a transmitting/receiving part arranged in a circumferential-direction of the pipe composed of one or two or more different oscillator groups on the array probe 5 for detecting flaw. When flaw of the pipe 1 is detected with this ultrasonic flaw detecting device, the wall thickness of the pipe 1 is measured and the propagation path of ultrasonic for scanning in the thickness direction of the pipe 1 are computed using the array probe 5 for detecting flaw based on the measured thickness distribution. Based on the computed propagation path, the oscillator groups corresponding to the transmitting part 6 and the receiving part 7 on the array probe 5 for flaw detecting are changed, or the angle of the array probe 5 for detecting flaw is controlled to be changed for scanning in the thickness direction of the pipe 1.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：即使对于内表面具有较厚壁部的钢管也能实现串联探伤。解决方案：该装置设置有用于使超声波在管（钢管1）的管轴方向上入射到焊接部2的焊接区域的发送部6和用于接收管由焊接区域2反射的反射波9的一部分或全部。发送部分6和接收部分7配备有在由一个或两个或更多个不同振荡器组成的管道的圆周方向上布置的发送/接收部分用于检测缺陷的阵列探针5上的组。当利用该超声波探伤装置检测到管1的缺陷时，测量管1的壁厚，并使用用于检测缺陷的阵列探针5计算用于在管1的厚度方向扫描的超声波的传播路径基于测量的厚度分布。基于计算出的传播路径，对应于用于探伤的阵列探针5上的发射部分6和接收部分7的振荡器组被改变，或者用于检测瑕疵的阵列探针5的角度被控制为改变扫描在管1的厚度方向上。版权所有（C）2009，JPO＆INPIT

34. 发明专利

JP2006231392A Method for producing cast slab 有权
标题翻译：生产铸件的方法
公开(公告)号：JP2006231392A
公开(公告)日：2006-09-07
申请号：JP2005053275
申请日：2005-02-28
申请人： Jfe Steel Kk , Jfeスチール株式会社
发明人： MATSUI MINORU , IIZUKA YUKIMICHI
IPC分类号： B22D11/16 , G01N29/04
摘要： PROBLEM TO BE SOLVED: To provide a flaw detection scanning method and a method for producing a cast slab by using this flaw detection scanning method with which the optimum cutting-off position is decided from starting of the flaw detection with one sensor and the time till cutting off is made to drastically high speed.
SOLUTION: When the flaw of a cast steel material is detected, the flaw detection is performed from a prescribed starting position of the flaw detection to the longitudinal direction toward the inside from the end surface of the steel material, and at the position in the longitudinal direction that a shrinkage-pipe is not detected, the flaw detecting direction is changed into the width direction perpendicular to the longitudinal direction to perform the flaw detection. At the position in the width direction which detects the shrinkage pipe, the flaw detection is repeatedly performed by changing the flaw detecting direction into the longitudinal direction, and the longitudinal directional position where the shrinkage pipe is not detected over the whole width in the width direction, is decided as the cutting-off position and the steel material is cut off at this decided cutting-off position.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种探伤扫描方法和使用该探伤扫描方法制造铸坯的方法，利用该探伤扫描方法，利用一个传感器从探伤开始确定最佳切断位置，直到切断的时间达到极高的速度。解决方案：当检测到铸钢材料的缺陷时，从钢材的端面的缺陷检测的规定的起始位置到长度方向向内侧进行探伤，并且在位置在没有检测到收缩管的长度方向上，将检漏方向变更为与长度方向垂直的宽度方向，进行缺陷检测。在检测收缩管的宽度方向的位置处，通过将缺陷检测方向改变为长度方向，并且在宽度方向上的整个宽度上未检测到收缩管的纵向方向位置来重复进行缺陷检测被确定为切断位置，并且在该决定的切断位置切断钢材。版权所有（C）2006，JPO＆NCIPI

35. 发明专利

JP2006198643A Method of manufacturing continuously cast slab 有权
标题翻译：制造连续铸造砖的方法
公开(公告)号：JP2006198643A
公开(公告)日：2006-08-03
申请号：JP2005011581
申请日：2005-01-19
申请人： Jfe Steel Kk , Jfeスチール株式会社
发明人： SUZUKI TAKESHI , KUBOTA ATSUSHI , IIZUKA YUKIMICHI , TSUTSUMI KOICHI
IPC分类号： B22D11/16 , B22D11/20 , B22D11/22
摘要： PROBLEM TO BE SOLVED: To provide a method of manufacturing continuously cast slabs, which can improve the productivity or the quality of the cast slabs by performing a casting operation while exactly detecting the finish position of solidification of the continuously cast slabs and by controlling the finish position of solidification so as to coincide with a preliminarily set reference position.
SOLUTION: An apparatus for manufacturing the continuously cast slabs comprises transverse ultrasonic wave sensors 6, 8, longitudinal ultrasonic sensors 7, 9 arranged at the same positions as the positions of the transverse ultrasonic wave sensors or at the same positions as the positions in the direction of the width of the cast slab separated in the direction of the casting, and a section for calculating the finish position 4 of solidification by using an arithmetical expression based on the received signals of the longitudinal ultrasonic sensors. When the coincidence of the arranged positions of the transverse ultrasonic wave sensors and the finish position of solidification of the cast slab has been confirmed by the variation of the intensity of the received signals of the transverse ultrasonic wave sensors, the casting speed or the quantity of secondary cooling water is changed such that the finish position of solidification coincides with the reference position by detecting the finish position of solidification of the cast slabs by using an apparatus for detecting the finish position of solidification, wherein the arithmetical expression is calibrated such that the finish position of solidification calculated by the arithmetical expression coincides with the arranged positions of the transverse ultrasonic wave sensors.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供连续铸造板坯的制造方法，其可以通过在精确地检测连铸坯件的凝固的最终位置的同时进行铸造操作来提高铸坯的生产率或质量，并且通过控制凝固的完成位置，使其与预先设定的基准位置一致。解决方案：用于制造连续铸造板坯的装置包括横向超声波传感器6,8，纵向超声波传感器7,9布置在与横向超声波传感器的位置相同的位置处或与位置相同的位置沿铸件方向分离的铸坯的宽度方向，以及通过使用基于纵向超声波传感器的接收信号的算术表达式来计算固化的最终位置4的部分。通过横向超声波传感器的接收信号的强度的变化，铸造速度或者铸造速度的变化，确认了横向超声波传感器的配置位置和铸坯的凝固的完成位置的一致性改变二次冷却水，使得通过使用用于检测凝固的最终位置的装置来检测铸坯的凝固的最终位置，使固化的最终位置与基准位置一致，其中计算表达式被校准为使得完成通过算术表达式计算的凝固位置与横向超声波传感器的布置位置一致。版权所有（C）2006，JPO＆NCIPI

36. 发明专利

JP2005201800A Ultrasonic flaw detection method for end part of steel sheet 审中-公开
标题翻译：钢板端部超声波检测方法
公开(公告)号：JP2005201800A
公开(公告)日：2005-07-28
申请号：JP2004009182
申请日：2004-01-16
申请人： Jfe Steel Kk , Jfeスチール株式会社
发明人： OKAWA HIROJI , NAKAZAWA SUSUMU , IIZUKA YUKIMICHI
IPC分类号： G01N29/04 , G01N29/10
CPC分类号： G01N2291/0234 , G01N2291/0427 , G01N2291/044
摘要： PROBLEM TO BE SOLVED: To provide an ultrasonic flaw detection method for detecting a defect in an edge part of a steel sheet and in the vicinity of the edge part.
SOLUTION: When an ultrasonic wave is applied from a probe into a surface of the steel sheet, the ultrasonic wave reflected from a bottom face is applied at an inclined angle from the surface of the steel sheet to flaw-detect the edge part of the steel sheet (edge part and in the vicinity of the edge part), the flaw detection is preferably carried out at 37-65° of inclined angle when the ultrasonic wave is made incident upon the surface of the steel sheet, using a plurality of probe lines of arrayed probes as the probe, and using sector scanning for changing the incident angle in combination with linear scanning for changing an incident point, and the reflected waves from the probe lines are composed.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供一种用于检测钢板的边缘部分和边缘部分附近的缺陷的超声波探伤方法。解决方案：当从探头向钢板的表面施加超声波时，从底面反射的超声波以与钢板的表面倾斜的角度进行加工，以检测边缘部分（边缘部分和边缘部分附近），当超声波入射到钢板表面上时，优选以37-65°的倾斜角进行探伤，使用多个作为探针的排列探针的探针线，以及与用于改变入射点的线性扫描相结合的用于改变入射角的扇形扫描，并且构成来自探针线的反射波。版权所有（C）2005，JPO＆NCIPI

37. 发明专利

JP2003290896A Method for producing continuously cast slab 审中-公开
标题翻译：生产连续铸造砖的方法
公开(公告)号：JP2003290896A
公开(公告)日：2003-10-14
申请号：JP2002090542
申请日：2002-03-28
申请人： Jfe Steel Kk , Jfeスチール株式会社
发明人： TSUTSUMI KOICHI , AWAJIYA HIROSHI , SUZUKI MAKOTO , KAWANAMI SHUNICHI , KUBOTA ATSUSHI , FUJIWARA HITOSHI , IIZUKA YUKIMICHI
IPC分类号： B22D11/16 , B22D11/12
摘要： PROBLEM TO BE SOLVED: To cast while controlling so that the shape of a crater end in the width direction of a cast slab becomes a target state by catching the shape of the crater end varied spatially and time-wire in the width direction of the cast slab when steel is continuously cast.
SOLUTION: The position of crater end 17 is detected by transmitting the transversal wave of electromagnetic ultrasonic wave into the cast slab 14, and the width not spraying cooling water intentionally of a secondary cooling, is changed according to the difference between the detected shortest crater end length and the detected longest crater end length to reduce the difference of the crater end length in the width direction of the cast slab.
COPYRIGHT: (C)2004,JPO
摘要翻译：要解决的问题：在控制过程中，通过捕获在空间上的火山口端的形状和在宽度方向上的时间线的方式，铸造板的宽度方向上的火山口端部的形状成为目标状态的钢板连铸时。解决方案：通过将电磁超声波的横波传输到铸坯14中来检测火山口端17的位置，并且根据检测到的差异来改变不对二次冷却有意地喷射冷却水的宽度最短的火山口端长和检测到的最长的火山口端长，以减少铸造板的宽度方向上的火山口端长的差异。版权所有（C）2004，JPO

38. 发明专利

JP2009066656A Method for producing continuously cast slab 有权
标题翻译：生产连续铸造砖的方法
公开(公告)号：JP2009066656A
公开(公告)日：2009-04-02
申请号：JP2007302691
申请日：2007-11-22
申请人： Jfe Steel Kk , Jfeスチール株式会社
发明人： TSUTSUMI KOICHI , KARIYA KAZUHIRO , MATSUI MINORU , IIZUKA YUKIMICHI
IPC分类号： B22D11/16 , B22D11/04 , B22D11/055 , B22D11/115
摘要： PROBLEM TO BE SOLVED: To provide a method for producing a continuously cast slab with which defects caused in the surface layer part of a slab are recognized, further, fluidization of molten steel in a mold at the point when the defects are caused is recognized, and they are compared so as to find the cause of occurrence of the defects, thus the occurrence of similar defects is prevented, and a continuously cast slab having reduced defects on the surface layer part is produced.
SOLUTION: A plurality of temperature measurement elements 29 are arranged at a mold 5, the temperature of a mold copper plate during continuous casting is measured. Further, the measured temperature of the mold copper plate is memorized in a memory 31, the defects on the surface layer part in the cast slab are detected by a defect detector, and the magnetic field applying conditions in a magnetic field generator 27 for controlling the fluidization of the molten steel in the mold are changed on the basis of the detected result of the defects by the defect detector and the measured value of the temperature of the mold copper plate memorized in the memory.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供一种用于生产连续铸造的板坯的方法，其中识别出板坯的表面层部分所引起的缺陷，此外，在造成缺陷的时刻，钢水在模具中的流化被识别，并且将它们进行比较以发现缺陷的发生的原因，从而防止出现类似的缺陷，并且产生在表面层部分上具有减少的缺陷的连续铸造的板坯。解决方案：在模具5处设置多个温度测量元件29，测量连续铸造期间的模具铜板的温度。此外，将模具铜板的测量温度存储在存储器31中，通过缺陷检测器检测铸坯中的表面层部分的缺陷，并且在磁场产生器27中的磁场施加条件用于控制基于通过缺陷检测器检测到的缺陷的结果和存储在存储器中的模具铜板的温度的测量值来改变模具中的钢水的流化。版权所有（C）2009，JPO＆INPIT

39. 发明专利

JP2009008422A Method and device for diagnosing tube 有权
标题翻译：用于诊断管的方法和装置
公开(公告)号：JP2009008422A
公开(公告)日：2009-01-15
申请号：JP2007167472
申请日：2007-06-26
申请人： Jfe Steel Kk , Jfeスチール株式会社
发明人： IIZUKA YUKIMICHI , SHIBUYA KIYOBUMI
IPC分类号： G01N29/04 , G01N29/30 , G01N29/44
摘要： PROBLEM TO BE SOLVED: To accurately diagnose a corrosion state, even when various corrosion forms are mixed.
SOLUTION: A device for diagnosing a tube includes at least one pair of ultrasonic probes 11, 21 arranged oppositely across a nozzle part 100a; ultrasonic transmission parts and ultrasonic reception parts 13, 23, 14, 24 for acquiring a signal of a transmission echo by using the pair of ultrasonic probes 11, 21, and acquiring a signal of a reflection echo from both sides across the nozzle part 100a by using the pair of ultrasonic probes 11, 21 and/or another ultrasonic probe; and a signal processing part 2 for estimating the corrosion state of the nozzle part 100a based on at least three sets of signals acquired by the ultrasonic reception parts 14, 24.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：为了精确地诊断腐蚀状态，即使混合了各种腐蚀形式。解决方案：用于诊断管的装置包括相对于喷嘴部分100a布置的至少一对超声波探头11,21; 超声波发送部件和超声波接收部件13,23,14,24，用于通过使用该对超声波探头11,21来获取发送回波的信号，并通过喷嘴部分100a从两侧获取反射回波的信号使用一对超声波探头11,21和/或另一个超声波探头; 以及信号处理部分2，用于基于由超声波接收部件14,24获取的至少三组信号来估计喷嘴部分100a的腐蚀状态。版权所有（C）2009，JPO＆INPIT

40. 发明专利

JP2008209358A Quality control method and manufacturing method of tube 有权
标题翻译：质量控制方法及其制造方法
公开(公告)号：JP2008209358A
公开(公告)日：2008-09-11
申请号：JP2007048810
申请日：2007-02-28
申请人： Jfe Steel Kk , Jfeスチール株式会社
发明人： IIZUKA YUKIMICHI , KENMOCHI KAZUHITO , YOKOYAMA HIROYASU , INOUE TOSHIHIRO , SAKASHITA SHIGETO
IPC分类号： G01N29/04 , B23K31/00 , G01N29/30 , G01N29/44
CPC分类号： G01N29/265 , G01N29/043 , G01N29/0645 , G01N29/449 , G01N2291/044 , G01N2291/056 , G01N2291/106 , G01N2291/2634 , G01N2291/2675 , Y10T29/49764 , Y10T29/49769 , Y10T29/49771
摘要： PROBLEM TO BE SOLVED: To adequately determine flaws with a penetrator. SOLUTION: The flaw on a welded part 2 of a tube 1 is ultrasonically detected at least in a tube axis direction, and quality of the tube is evaluated by using a measured value per predetermined area in a tube thickness direction and tube axis direction. A length of one side of the predetermined area is longer than an ultrasonic beam size and shorter than a tube thickness. The quality of the tube can be evaluated by using an average value of the measured values in the predetermined area while shifting the predetermined area in the tube axis direction and tube thickness direction. The length of the one side of the predetermined area can be longer than an ultrasonic beam width and shorter than the tube thickness. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：充分确定穿透器的缺陷。解决方案：管1的焊接部2上的缺陷至少在管轴方向上被超声波检测，并且通过使用在管厚度方向和管轴上的每个预定面积的测量值来评价管的质量方向。预定区域的一侧的长度比超声波束尺寸长并且短于管的厚度。通过在预定区域中使用平均值，同时沿管轴方向和管厚度方向移动预定区域，可以评估管的质量。预定区域的一侧的长度可以比超声波束宽度长并且短于管的厚度。版权所有（C）2008，JPO＆INPIT

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