Ultrasonic non-destructive testing device for welding beads

摘要

PCT No. PCT/DE79/00105 Sec. 371 Date May 13, 1980 Sec. 102(e) Date May 13, 1980 PCT Filed Sep. 11, 1979 PCT Pub. No. WO80/00616 PCT Pub. Date Apr. 3, 1980.An ultrasonic non-destructive testing device for welded seams on pipes and tubes comprises two test heads arranged opposite one another on a line normal to the welded seam. Each test head comprises a transducer element for longitudinal defects and two transducer elements for transverse defects. The transducer elements for transverse defects interact with transducer elements on the opposite side of the welded seam. The device allows the complete automatic testing of a welded seam from the beginning of the pipe to the end of the pipe for longitudinal and transverse defects.