Application of non-destructive testing method of St37-2 steel plate

Non-destructive testing methods for St37-2 steel plate can include the following:

1. Ultrasonic detection: Detect defects, wall thickness changes and other problems through the characteristics of ultrasonic waves propagating in materials. Can be used to evaluate the structural integrity within St37-2 steel plate.

2. Magnetic particle testing: Using magnetic powder or particles coated on the surface to be inspected, after applying a magnetic field, defects such as cracks and inclusions on the surface and near the surface can be found by observing the distribution of the powder.

3. Eddy current detection: An induction coil is used to generate an alternating magnetic field. When the magnetic field interacts with conductors (such as metal), eddy currents are generated. The detector identifies defects based on eddy current signals.

4. Magnetic memory detection: Using the magnetism of the material itself for defect detection, it is suitable for detecting stress concentration, cracks and other problems.

5. Magnetostriction detection: The magnetostriction effect is used to detect stress and stress concentration areas in materials, which helps to evaluate the strength and stability of materials.

6. Infrared thermal imaging detection: By detecting the distribution of infrared heat radiated from the surface of St37-2 steel plate, temperature abnormalities can be identified, which helps to find potential defects or problems.

These non-destructive testing methods can help evaluate the quality, integrity and performance of St37-2 steel plate to ensure their reliability and safety in different applications. The method chosen depends on the specific problem to be detected and the environmental conditions.

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