Why Demagnetization Process Is Important?

Demagnetization is required to remove the magnetic fields in the material that counteract those of the eddy current probe. This interaction can influence the test so strongly that the test results exceed the sorting threshold and the test piece is declared as a bad part despite its sufficient properties.

Why it is important to demagnetize after the MPI?

Generally, when the influence of magnetization becomes a problem in the post-process of the magnetic particle testing, it is necessary to demagnetize the inspection object. 2. New demagnetization method after magnetic testing. It is difficult to demagnetize by the conventional method.

Why would you want to demagnetize something?

Demagnetization is one way to remove the data and improve security. There are many situations in which metallic objects become magnetic and cause problems. In some cases, the problem is that the metal now attracts other metals to it, while in other cases, the magnetic field itself presents issues.