オーステナイト系鋳鋼の超音波探傷

概要

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We invented a new defect detecting method of austenitic cast steels of which ultrasonic wave detecting has never been available up to now. This is a new way using transmission ultrasonic detecting method with angle beam double probe. The defect situation is distinguished both with the shape of transmission ultrasonic wave and the scanning state of wave shape changing accompanied by transfering of probes. Thus, it is now possible to find such defects as shrinkages, blow holes, cracks and some inside parts where the molten steel has not been bonded enough with inserted metal.
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