| 摘要 |
PROBLEM TO BE SOLVED: To provide a method and a system for magnetic particle inspection which can achieve high-precision magnetic particle inspection by forming clearer magnetic particle patterns. SOLUTION: This magnetic particle inspection system 100 is equipped with magnetizing equipment 11, 12 which allows rotating magnetic field to act on surface P of horizontally-arranged tubular test material, nozzle actuators 21A, 21B, 22A, 22B for sprinkling magnetic powder liquid on surface of the test material, and a driving mechanism 3 which allows these magnetizing equipment and nozzle actuators to be rotated integrally about the central axis of the test material along its circumferential direction. The nozzle actuators are respectively provided on both ends in the traveling direction of the magnetizing equipment, to sprinkle magnetic powder liquid from the nozzle actuators mounted on the end of the same directional side as the magnetic powder flowing direction; while the driving mechanism moves the magnetizing equipment toward the same direction as the sprinkled magnetic powder flowing direction so that traveling speed of the magnetizing equipment is nearly equal to the flowrate of the magnetic powder liquid immediately, after being sprinkled. COPYRIGHT: (C)2006,JPO&NCIPI
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