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The system is suitable for the automatic detection of various internal and external defects of steel pipes. The principle of ultrasonic flaw detection is that after the ultrasonic wave is coupled into the steel pipe through water, the incident propagation will cause ultrasonic reflection when there is a defect in the pipe. The ultrasonic instrument will alarm the ultrasonic reflected signal after realizing the signal to realize the automatic detection of the defect; Transmission ultrasonic…Continue
Magnetic flux leakage test refers to the formation of a leakage magnetic field on the surface of a test piece after it is magnetized due to defects on the surface or near-surface of the test piece. People can detect defects by detecting changes in the leakage magnetic field.
Briefly describe the magnetization of ferromagnetic components. In the magnetic non-destructive testing, magnetization is the first step to realize the detection, which determines whether the leakage…Continue
Tubing repair is an important measure to reduce the comprehensive cost of production in oil production plants to improve the quality of repairing tubing. It can ensure the quality of oil and water wells to prolong the inspection cycle, reduce the rework of operations and reduce operating costs.
As an important process in the tubing repair test line, the…Continue
(1) Ndt Application in Automotive Industry -Ultrasound Testing of Automobile Half-axle
Fracture failure of half axle is mainly due to high frequency and low-stress fatigue damage, and the existence of internal defects of workpiece is one of the important reasons for fatigue fracture. Ultrasound can be used to inspect the raw materials of the semi-axle and the semi-finished products after forging.
When diagnosing, the high-frequency electric pulse is…Continue