Ultrasonic flaw detector and ultrasonic flaw detection method
AssigneeNippon Steel Corporation
InventorTakahisa OGAWA
Life of this patent
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Abstract
An ultrasonic flaw detector for performing flaw detection of a circumferential defect on a surface of a steel pipe is configured such that only a surface wave probe configured to transmit a surface wave to the surface of the steel pipe is provided as a probe for transmitting an ultrasonic wave to the steel pipe and a position of the surface wave probe is fixed in a state where a surface wave transmission direction of the surface wave probe is in parallel with a pipe axis direction of the steel pipe.
Claims20
An ultrasonic flaw detector for performing flaw detection of a circumferential defect on a surface of a steel pipe,
- wherein only a surface wave probe configured to transmit a surface wave to the surface of the steel pipe is provided as a probe for transmitting an ultrasonic wave to the steel pipe, and
- wherein a position of the surface wave probe is fixed in a state where a surface wave transmission direction of the surface wave probe is in parallel with a pipe axis direction of the steel pipe.
An ultrasonic flaw detection method for performing flaw detection of a circumferential defect on a surface of a steel pipe,
- wherein flaw detection is performed on the steel pipe using only a surface wave probe configured to transmit a surface wave to the surface of the steel pipe as a probe for transmitting an ultrasonic wave to the steel pipe by transmitting the surface wave from the surface wave probe to the surface of the steel pipe in a state where a surface wave transmission direction of the surface wave probe is in parallel with a pipe axis direction of the steel pipe.
Dependencies are inferred from the claim text.