| 摘要 |
PROBLEM TO BE SOLVED: To provide an ultrasonic flaw detection facility for square steel capable of calibrating off-line without the interference between ultrasonic flaw detection device and a calibrating specimen in a device for contacting a square steel with ultrasonic probes from each direction and detecting a flaw with ultrasonic waves. SOLUTION: The ultrasonic flaw detection facility for square steel includes a plurality of probes arranged opposed to each other which are placed an insertion space of a square steel of an objective member to be flaw-detected among them, the ultrasonic flaw detection device capable of alternately moving a flaw-detection position on the conveyance line of the square steel and a calibration position on the other place than the conveyance line, and a calibrating specimen supporting device with an artificial flaw formed therein, capable of supporting an end of a calibrating specimen with a long-length and a square cross section, and inserting the calibrating specimen among the ultrasonic probes of the ultrasonic flaw detection device at the calibration position. COPYRIGHT: (C)2010,JPO&INPIT
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