PRECOOLING APPARATUS FOR CONTINUOUS AUTOMATIC ULTRASONIC INSPECTION

摘要

A continuous automatic ultrasonic inspection apparatus detects flaws in a material by transmitting pulses or continuous waves into the material to be inspected through the medium of a laminar flow water jet column. The precooling apparatus is provided near the laminar flow water jet column and improves the accuracy of flaw detection of the material at high temperature moving at high speed and also increases the maximum inspection temperature.