First, the infrared thermal imaging non-destructive testing technology is non-contact, and the results are visually displayed in the form of color images. It is very convenient to observe the size and orientation of defects, and can be quantitatively calculated. The most commonly used ultrasonic flaw detection is contact type, and the result is judged by the waveform amplitude of the oscilloscope. This will inevitably lead to the influence of human subjective factors. Different testers will draw different conclusions on the same workpiece due to different experience. At the same time, the ultrasonic detection is interfered by stray waves and interface reflections, which may cause false detection and missed detection.
Second, infrared thermal imaging non-destructive testing technology is very fast. Due to the use of imaging technology, it typically takes only a few seconds to detect a component. Especially in the case of flaw detection of large-area components, this technology is superior and can greatly improve the detection efficiency.
Third, infrared thermal imaging non-destructive testing technology is a versatile detection technology that can detect both metal and non-plate materials. It is also effective to detect workpieces with complex shapes, poor surface flatness and smoothness, or oxide layers. For example, the detection of some forged or cast components (such as round pins, tie rods, couplers, etc.) in a vehicle can be easily solved using infrared thermal imaging technology, and the conventional flaw detection methods currently used by the maintenance department are difficult to solve. The flaw detection problem, but these components are the key components of the vehicle.
Fourth, the results of infrared thermal imaging non-destructive testing techniques can be stored in memory for long periods of time. This is very useful for studying the damage law of the workpiece and tracking and detecting some key forces or moving parts.
