1,Why does the steel plate need to carry out non-destructive testing?
Steel plate qualification rate is not 100, there will be defects, steel plate flaw detection or not mainly depends on the use of the place to see the regulations, if like aerospace navigation, pressure vessels and tanks, energy, bridges and other industries need to ensure the quality of steel plate.
If the number of steel plate is small, you can use ultrasonic flaw detector manual inspection, if the steel plate enterprises or the use of steel plate ultrasonic automatic flaw detection equipment is convenient. A level of flaw detection on the welding quality and the basic requirements of the plate is high, secondary and tertiary flaw detection is relatively low, because the boiler must have the sealing and pressure resistance properties, so the boiler vessel plate flaw detection of welded steel plate is an important part of the welded dense holes and cracks. Dancing steel container plate can be guaranteed flaw detection.
2,Types of flaw detection
Detect cracks or defects within the metal material or component. Commonly used flaw detection methods are: X-ray flaw detection, ultrasonic flaw detection, magnetic particle flaw detection, infiltration flaw detection, eddy current flaw detection, γ-ray flaw detection, fluorescence flaw detection, coloring flaw detection and other methods. Physical flaw detection is the case of non-destructive flaw detection without chemical changes.
Non-destructive flaw detection is a test means to check the surface and internal quality of the inspected parts without damaging the workpiece or raw materials in working condition.
