Non-Destructive Test
🎯 Definition of Non-Destructive Testing
Non-Destructive Testing is a technology that inspects · determines the incompleteness of the object to be inspected without damaging the object to be inspected using the principle of physical phenomena, and inspects the internal structure of the part and the accept · reject of defects.
🎯 Method of Non-Destructive Testing
- Radiographic
Testing(RT) - Ultrasonic
Testing(UT) - Magnetic Particle
Testing(MT) - Penetrant
Testing(PT) - Eddy Current
Testing(ECT) - Leak Testing
(LT) - Visual Testing
(VT)
Penetrant Testing
Principle and Method
It is a method to show fine defects on the surface of a specimen by applying inspection agents (penetrating agent, remover, developer) to the surface of the specimen in an easy-to-see magnified view.
It can be used to detect defects existing on the surface of a specimen, and it is easy to find defects of a minute size. However, defects in the structure open to the surface can only be detected so that the test substance can be penetrated.
Scope
- Welding inspection
- Inspection of automobile parts
- Ceramic and glass
- Aluminum parts
