Flaw detector

Flaw detector

Product Information

  • Name : Flaw detector
  • SKU : BLT-51
  • Category : flaw-detectors

Flaw detectors are industrial non-destructive testing instruments used to detect hidden defects such as cracks, pores, slag inclusions, and porosity inside metals and composite materials without damaging the workpiece. They can also inspect internal damage in welds, plates, and pipes. The main types include ultrasonic flaw detectors, magnetic particle flaw detectors, penetrant flaw detectors, and eddy current flaw detectors. These devices are portable and easy to operate, with screens that intuitively display the location, size, and depth of defects. They are widely used in industrial quality inspection and safety hazard排查 of equipment.

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Flaw detector

Working Principle The instrument applies ultrasonic waves, magnetic fields, eddy currents, or penetrating dye media to the workpiece via corresponding sensing probes. When defects such as cracks, delaminations, or impurities exist inside or on the surface of the workpiece, the signal propagation path may shift, reflect, distort, or experience magnetic flux leakage or dye accumulation. The instrument captures abnormal signals, processes and computes them, and converts defect information into visible waveforms, images, or traces observable to the naked eye, thereby determining the exact location and severity of the damage in the workpiece. Application Fields 1. Pressure Vessels: Inspection of internal defects in welds and base materials of boilers and storage tanks. 2. Oil, Gas, and Chemical Industry: Non-destructive testing of corrosion and cracks in pressure pipeline welds. 3. Construction Engineering: Quality inspection of steel structure welds in bridges and industrial buildings. 4. Mechanical Manufacturing: Factory inspection and quality testing of gears, shafts, and forged components before delivery.