DEVICE FOR ULTRASONIC WELD SEAM TESTING OF LONGITUDINALLY WELDED PIPES FOR LONGITUDINAL AND TRANSVERSAL defects

摘要

The invention relates to a device for ultrasound - checking of the weld seam on longitudinal seam-welded pipes along - and diagonal errors with two pivotally suspended, on the surface of the tube to the right and left of the weld seam displaceable test carriage for the longitudinal error - checking and a pivotally suspended, centrally to the weld seam, aligned, on the surface of the tube displaceable test carriage for the defect testing, wherein each test carriage with a sensor and at least one test head having a vibrator arranged therein and at least one coupling means - connection is provided, whose channel opens in the region of the oscillator and in the discharge region is formed a nozzle-like manner, wherein the respective nozzle element by means of screws is connected with the pick-up means. In this case, the test head for the longitudinal error check in various fixed, predetermined angular positions, but in the variable distance from the nozzle element can be arranged in the pick-up means (8) and the or the test heads are provided for the defect testing, together with the sensors (64, 64 ') together in an adjustable distance to the tube surface in a the pick-up means (64, 64') can be arranged, which holds the support element.