FIELD: testing technology.
SUBSTANCE: invention relates to methods of testing and operational ultrasonic product control. To improve the reliability of ultrasonic non-destructive control prior to carrying out the control the product is loaded by load sufficient to disclosure of hypothetical defect such as crack in the place of control to a value that would provide a reflection of the ultrasonic wave from the defect and made it detectable.
EFFECT: improving reliability and quality of the product is achieved.
4 cl, 5 dwg
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