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51. 发明专利

JPWO2003091655A1 金属検査方法及び金属検査装置有权
公开(公告)号：JPWO2003091655A1
公开(公告)日：2005-09-02
申请号：JP2004500001
申请日：2003-04-22
申请人：株式会社アヅマシステムズ
发明人：和廣山川 , 和廣山川 , 和明田畑 , 和明田畑
IPC分类号： G01N27/82 , G01N27/80 , G01N27/90 , G01R33/02 , G07D5/00 , G07D5/02 , G07D5/08
CPC分类号： G07D5/08 , G07D5/005
摘要：検査対象や要求検出精度に応じて自由に形状などの変更が可能な検出コイルを用いる金属検査方法及び金属検査装置において、被検体の表面に沿う方向の磁束変化を精度良く検出し、金属検査の精度を向上させる。金属からなる被検体2の内部状態及び/又は被検体2の表面状態を磁気的に検査する金属検査方法(金属検査装置1)であって、被検体2の内部及び/又は被検体2の表面空間に、被検体2の表面に沿う交流磁界を発生させながら、コイル中心線が被検体2の表面に沿い、かつ、コイル外周面が被検体2の表面に局部的に対向する検出コイル4によって、被検体2の表面近傍における磁束変化を検出する。

52. 发明专利

JP2005188948A Method and apparatus for measuring hardness of stainless steel material 审中-公开
标题翻译：测量不锈钢材料硬度的方法和装置
公开(公告)号：JP2005188948A
公开(公告)日：2005-07-14
申请号：JP2003427055
申请日：2003-12-24
申请人： Sumitomo Metal Ind Ltd , 住友金属工業株式会社
发明人： SUZUMA TOSHIYUKI
IPC分类号： G01N27/80
摘要： PROBLEM TO BE SOLVED: To provide a method and an apparatus for reducing an effect of an air gap magnetic flux in a detection coil and accurately measuring a hardness of the whole austenite stainless steel material. SOLUTION: The hardness measuring apparatus 1 is provided with an excitation coil 11 disposed so as to surround the measured stainless steel material M, a first detection coil 12 disposed so as to surround the steel material M within the excitation coil 11, and a second detection coil 13 disposed so as to surround an air gap between the excitation coil 11 and the first detection coil 12 within the excitation coil 11. A calculation processor 30 calculates a voltage difference between a voltage induced by the first detection coil 12 and a voltage induced by the second detection coil 13, calculates a magnetic characteristic value of the steel material M based on the calculated voltage difference, and estimates the hardness of the steel material M based on the calculated magnetic characteristic value. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：解决的问题：提供一种降低检测线圈中气隙磁通的影响并精确测量整个奥氏体不锈钢材料的硬度的方法和装置。解决方案：硬度测量装置1设置有围绕测量的不锈钢材料M设置的励磁线圈11，围绕励磁线圈11中的钢材M设置的第一检测线圈12，以及第二检测线圈13，被布置成围绕励磁线圈11内的励磁线圈11和第一检测线圈12之间的气隙。计算处理器30计算由第一检测线圈12感应的电压和由第二检测线圈13感应的电压，基于计算出的电压差计算钢材M的磁特性值，并根据计算的磁特性值来估计钢材M的硬度。版权所有（C）2005，JPO＆NCIPI

53. 发明专利

JP3648225B2 Reactor pressure vessel degradation test method and apparatus 有权
公开(公告)号：JP3648225B2
公开(公告)日：2005-05-18
申请号：JP2002354778
申请日：2002-12-06
申请人：日本原子力研究所
发明人：伸也中島 , 典也海老根 , 克之荒
IPC分类号： G01N27/80 , G21C17/003

54. 发明专利

JP3629262B2 Reactor pressure vessel degradation test method and apparatus 有权
公开(公告)号：JP3629262B2
公开(公告)日：2005-03-16
申请号：JP2002354800
申请日：2002-12-06
申请人：日本原子力研究所
发明人：伸也中島 , 典也海老根 , 克之荒
IPC分类号： G01N27/80 , G21C17/003

55. 发明专利

JP3513601B2 Non-destructive method for measuring the aged deterioration accompanying the change in brittleness of ferromagnetic structure material 有权
公开(公告)号：JP3513601B2
公开(公告)日：2004-03-31
申请号：JP2001181135
申请日：2001-06-15
申请人：岩手大学長
发明人：正氣高橋
IPC分类号： G01N27/72 , G01N27/80
CPC分类号： G01N27/80 , G01N27/72

56. 发明专利

JP2002372519A Non-destructive measuring method of secular deterioration associated with change in brittleness of ferromagnetic structure material 审中-公开
标题翻译：非破坏性测量方法与纤维结构材料的脆性相关的变化相关
公开(公告)号：JP2002372519A
公开(公告)日：2002-12-26
申请号：JP2001181135
申请日：2001-06-15
申请人： Iwate Univ , 岩手大学長
发明人： TAKAHASHI MASAKI
IPC分类号： G01N27/72 , G01N27/80
CPC分类号： G01N27/80 , G01N27/72
摘要： PROBLEM TO BE SOLVED: To provide a method for measuring the degree of secular deterioration of a ferromagnetic structure such as a pressure vessel of a nuclear reactor as the brittleness is changed in a pre-stage of cracking in a non-destructive manner by using a small magnetic yoke and an excitation power source. SOLUTION: In the non-destructive measuring method of the secular deterioration of a ferromagnetic structural material as the brittleness of a material thereof is changed, the magnetic susceptibility χb of the ferromagnetic material is measured by a predetermined magnetic field intensity H with at least the coercive force Hc, and the embrittlement coefficient b is obtained from the expression b=χb H by using the magnetic susceptibility χb and the magnetic field intensity H. The correlation Hv=f(b) between the embrittlement coefficient b and the reference embrittlement factor (Vickers hardness Hv) changing corresponding to the change in brittleness of the ferromagnetic material similar to that of the ferromagnetic structural material to be measured is obtained in advance. The Vickers hardness Hv corresponding to each embrittlement coefficient b in the initial state and after the secular deterioration of the ferromagnetic structural material to be measured is obtained from the correlation Hv=f(b), and the Vickers hardness Hv is compared to quantitatively obtain the change in brittleness due to the secular deterioration of the ferromagnetic structure to be measured.
摘要翻译：要解决的问题：提供一种用于测量核反应堆等铁磁结构的长期劣化的方法，因为脆性在破坏的前期以非破坏性方式改变，通过使用小磁轭和励磁电源。解决方案：随着材料的脆性改变，铁磁结构材料的长期劣化的非破坏性测量方法，铁磁材料的磁化率χb通过至少具有矫顽力的预定磁场强度H来测量力Hc，并且通过使用磁化率χb和磁场强度H从表达式b =χbH 2获得脆化系数b。脆化系数b和参考脆化之间的相关性Hv = f（b）预先获得与铁磁材料脆性变化相对应的因素（维氏硬度Hv）变化与被测铁磁结构材料相似的变化。从相关性Hv = f（b）获得在初始状态下和在待测铁磁结构材料的长期劣化后的初始状态下和每个脆化系数b之间的维氏硬度Hv，并将维氏硬度Hv进行比较，由于要测量的铁磁结构的长期劣化而导致的脆性变化。

57. 发明专利

JP3223596B2 失效
公开(公告)号：JP3223596B2
公开(公告)日：2001-10-29
申请号：JP25921492
申请日：1992-09-29
IPC分类号： G01B7/24 , G01B7/00 , G01N27/80 , G01R33/12

58. 发明专利

JPH07110270A METHOD FOR MEASURING MAGNETOSTRICTIVE STRESS OF PIPE 失效
公开(公告)号：JPH07110270A
公开(公告)日：1995-04-25
申请号：JP25606893
申请日：1993-10-13
申请人： OSAKA GAS CO LTD , NIPPON KOKAN KK
发明人： SHIMIZU KENJI , OGAWA YASUO , KURODA TAKASHI , SAKAI SADAAKI
IPC分类号： G01L1/00 , G01N27/80
摘要： PURPOSE:To quickly, easily, and accurately measure the stress of a flatly deformed pipe in the axial direction and circumferential direction irrespective of the diameter of the pipe. CONSTITUTION:An induced electromotive force V by a detection coil is detected by moving a magnetostriction sensor in the circumferential direction of a pipe to be measured and a measured value F1i is found for an angle theta around the axis of the pipe (n2). Then the deviation F2i between the measured value and its approximate value is found (n6) by performing least square approximation of the measured value by using the first cosine function of costheta (n5) and least square approximation of the deviation F2i is performed by using the second cosine function of cos2theta (n7). Finally, the stresses of the pipe in the axial and circumferential directions are found from the amplitude values of the costheta and cos2theta obtained by the above-mentioned least square approximation by performing predetermined arithmetic operation (8).

59. 发明专利

JPH0466863A RESIDUAL STRESS MEASURING METHOD BY STEEL WORKING 失效
公开(公告)号：JPH0466863A
公开(公告)日：1992-03-03
申请号：JP18079590
申请日：1990-07-09
申请人： TOYOTA MOTOR CORP
发明人： SAKANO AKIRA
IPC分类号： G01N27/80 , B24C1/10 , G01N33/20
摘要： PURPOSE:To make a correct measurement possible even in the working where a stress condition becomes isotropic, by applying change values of a permeability before and after working of a steel having a retained austenitic texture, to the relative relation coming to a reference to find residual stress. CONSTITUTION:Permeabilities before working (including the portion other than a worked portion where a portion of a steel 1 is worked) and after working of the steel 1 having a retained austenitic texture are measured. A sensor 21 consisting of a magnetic core 210 consisting of a laminated silicon steel plate, etc., an exciting coil 211 to which alternating current is applied, and a detection coil 212 wound round the magnetic core 210 and outputting the permeability muas a voltage value V; is used in a detection of the permeability. A calculation of a residual stress can be carried out as follows; the relative relation between a residual stress value being a reference previously found by an X-ray stress measuring device, etc. and a change value of the permeability mu (the voltage value V), is found. The residual stress corresponding to an individual change value (let the permeability before the working be mu0 (the voltage V0) and it after the working be mu (the voltage Vx), then the change value DELTAV is given by DELTAV=V0-VX) is found from such a relative relation.

60. 发明专利

JPH0141217B2 失效
公开(公告)号：JPH0141217B2
公开(公告)日：1989-09-04
申请号：JP2055983
申请日：1983-02-12
申请人： KAWASAKI STEEL CO
发明人： AKYAMA MAMORU , TAKAHASHI AKIRA
IPC分类号： G01N27/80 , G01N27/72

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