Flaw detectors can be divided into: digital ultrasonic flaw detectors, ultrasonic flaw detectors, magnetic particle flaw detectors, eddy current flaw detectors, radiographic flaw detectors and fluorescence flaw detectors, mainly used to detect whether there are defects inside machined parts (cracks, Sand holes, pores, white spots, inclusions, etc.), whether the welds are qualified or not, check whether there are dark wounds, so as to determine whether the workpiece is qualified or not.
