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1. 发明专利

JP2007147544A Ultrasonic flaw detection method, and ultrasonic flaw detector 审中-公开
标题翻译：超声波检测方法和超声波检测器
公开(公告)号：JP2007147544A
公开(公告)日：2007-06-14
申请号：JP2005345256
申请日：2005-11-30
申请人： Daido Steel Co Ltd , Krautkramer Japan Co Ltd , 大同特殊鋼株式会社 , 日本クラウトクレーマー株式会社
发明人： FUKUI YOSHIHISA , KATO TAKESHI , UCHINO HIROMI , DOMINIQUE BRACONNIER , MURAI JUNICHI
IPC分类号： G01N29/04 , G01N29/24 , G01N29/28
CPC分类号： G01N2291/0289
摘要： PROBLEM TO BE SOLVED: To provide an ultrasonic flaw detection method capable of detecting surely a micro internal defect, irrespective of a cross-sectional dimension different in every inspected material, and an ultrasonic flaw detector used therefor.
SOLUTION: This ultrasonic flaw detection method uses array probes 2, 10, is applied with a gap method using a vertical flaw detection method in combination with an inclined flaw detection method, for a large cross-sectional dimension of steel material W, out of the steel materials (inspected material) W to detect the internal defect, and is applied with a local submerging method for the small cross-sectional dimension of steel material W. The ultrasonic flaw detection method includes also the ultrasonic flaw detector including a plurality of sets of rollers R for supporting the steel material W to detect the internal defect, the array probes 2 for the gap method arranged on a surface of the steel material W via a water film, and the the array probes 10 for the local submerging method arranged on the surface of the steel material W via a water chamber 14.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种能够可靠地检测微内部缺陷的超声波探伤方法，而不管每个被检查材料的横截面尺寸不同，以及用于其的超声波探伤仪。解决方案：该超声波探伤方法使用阵列探针2,10，使用垂直探伤方法与倾斜探伤法结合使用的间隙法，对于钢材W的大截面尺寸，从钢材（检验材料）W中检出内部缺陷，并对钢材W的小截面尺寸采用局部浸没法。超声波探伤方法还包括超声波探伤仪，包括多个用于支撑钢材W以检测内部缺陷的辊组R，用于通过水膜布置在钢材W的表面上的间隙法阵列探针2和用于局部浸没法的阵列探针10 经由水箱14布置在钢材W的表面上。（C）2007年，JPO＆INPIT

2. 发明专利

JP2011149773A Ultrasonic flaw detection device 审中-公开
标题翻译：超声波检测装置
公开(公告)号：JP2011149773A
公开(公告)日：2011-08-04
申请号：JP2010010314
申请日：2010-01-20
申请人： Krautkramer Japan Co Ltd , 日本クラウトクレーマー株式会社
发明人： MURAI JUNICHI
IPC分类号： G01N29/04
摘要： PROBLEM TO BE SOLVED: To achieve the speedup of flaw detection processing by certainly suppressing the effect of an ultrasonic echo formed in a group just before set as a control target.
SOLUTION: An ultrasonic flaw detection device has an array probe with a plurality of ultrasonic vibrators arranged in one direction, a pulser for output of excitation pulses for exciting the ultrasonic vibrators, a receiving unit for acquiring the output corresponding to the intensity of the ultrasonic echo received by the ultrasonic vibrators to output the same as an echo signal, and a control unit for controlling the output of the excitation pulses by the pulser and forming the data related to the damage of an inspection target from the intensity of the echo signal. A main control unit controls the output of the excitation pulses and the reception of the echo signal in the unit of the group (#a-#g) constituted by a plurality of the ultrasonic vibrators. At this point, the group separated from the group in a cycle just before set as the control target at a predetermined interval or above is set to a next control target.
COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：通过确定地抑制在设定为控制对象之前的组中形成的超声波回波的效果来实现加速探伤处理。解决方案：超声波探伤装置具有阵列探头，其具有沿一个方向布置的多个超声波振动器，用于输出用于激励超声波振动器的激励脉冲的脉冲发生器，用于获取对应于超声波振动器的强度的输出的接收单元由超声波振动器接收的超声波回波作为回波信号输出;以及控制单元，用于通过脉冲发生器控制激励脉冲的输出，并且从回波的强度形成与检查对象的损伤有关的数据信号。主控制单元以由多个超声波振动器构成的组（＃a-＃g）为单位控制激励脉冲的输出和回波信号的接收。此时，将以预定间隔以上设定的控制对象之前的一个周期中与组分离的组被设定为下一个控制对象。版权所有（C）2011，JPO＆INPIT

3. 发明专利

JPH01308958A INTERNAL DEFECT DETECTION METHOD AND APPARATUS FOR BAR-SHAPED METAL MATERIAL 失效
公开(公告)号：JPH01308958A
公开(公告)日：1989-12-13
申请号：JP14026188
申请日：1988-06-07
申请人： DAIDO STEEL CO LTD , IKEUCHI SEIKO KK , KRAUTKRAEMER JAPAN
发明人： NAKAMURA KAORU , TSUCHIYA NORIO , MURAI JUNICHI
IPC分类号： G01N29/04
摘要： PURPOSE:To perform the accurate detection of a fine internal defect in various forms of a bar-shaped metal material by arranging a probe exclusively for reception at a specified interval adjoining a transmitting/receiving probe. CONSTITUTION:A transmitting/receiving probe 2 for transmitting or receiving ultrasonic waves is arranged on one side of a round bar-shaped metal material 1 moving in the direction of the arrow askew thereto 1. A probe 3 exclusively for reception is arranged along the length of the metal material 1 at a specified interval from the probe 2 so as to be parallel with the probe 2. As a result, an ultrasonic wave transmitted askew to the metal material 1 is reflected by a conical cracking of the metal material 1 and hence, an internal defect of this type can be detected by directly catching and reflected wave. When the internal defect is a truncated cone-shaped or disc-shaped cracking, the ultrasonic wave transmitted from the probe 2 is reflected by the internal defect and then, reflected on the opposite outer circumference of the metal material 1 to be received with the probe 3. This enables the detection of internal defects with various shapes, that has been hard to do in the prior art.

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