| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a method for inspecting a cylindrical molding, capable of simultaneously inspecting a plurality of items such as the presence or absence of a pin hole, a damage produced on the surface of the cylindrical molding, and mixing of foreign matter, and wall thickness distribution, about the quality of the cylindrical moldings which are cylindrically molded by various molding means.SOLUTION: In the method for inspecting a cylindrical molding, an ultrasonic transmission unit 1 equipped with ultrasonic transmission probes 1a and an ultrasonic reception unit 2 equipped with ultrasonic reception probes 2a are used. Any one of the units 1, 2 is inserted into the cylindrical molding and the units 1, 2 are arranged so as to be opposed to each other via a wall part of the cylindrical molding, and ultrasonic pulses P transmitted from the ultrasonic transmission probes 1a are detected by the ultrasonic reception probes 2a corresponding thereto.</p> |
