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    • 7. 发明专利
    • Magnetic flaw detector
    • JP5374328B2
    • 2013-12-25
    • JP2009264262
    • 2009-11-19
    • 大阪瓦斯株式会社
    • 智 藤田秀樹 早川建郎 安松
    • G01N27/84
    • PROBLEM TO BE SOLVED: To obtain a magnetic flaw detection sheet hard to produce the deviation of a magnetism-sensitive body even if the specific magnetic flaw detection sheet is used over a long period of time in regard to using this sheet. SOLUTION: This magnetic flaw detector is equipped with a first pressure applying means P1, which is equipped with an energizing mechanism B producing energizing force from the attraction force for attracting the magnetic pole 3 of a magnetism generation mechanism A to an inspection target by magnetism and presses the magnetic flaw detection sheet to the inspection target through a contact bonding body 4 being a rigid body and a freely deformable pressure member C, as a pressure applying means P. A spacer 37 is interposed between the surface material 35 and back material 36 of the magnetic flaw detection sheet D and the inside of the magnetic flaw detection sheet D is partitioned into a plurality of magnetism-sensitive body moving zones D1, D2 and D3 enabling the movement of the magnetism-sensitive body 38 to prevent the movement of the magnetism-sensitive body 38 straddling the magnetism-sensitive body moving zones D1, D2 and D3. COPYRIGHT: (C)2011,JPO&INPIT