How to demagnetize a pipeline?

Démagnétiser une canalisation

Our company ARTIS can realize a local demagnetization by the application of an inverse magnetic field before welding. This technique makes it possible to cancel the magnetic field in the weld joint or at the end of the part in order to achieve a weld under the optimum conditions.


  • Place of the winding and the generator taking care that the current set point is zero. Position the field meter at the end.
  • Increase the electric current in the winding and control the evolution of the magnetic field on the meter.
    Application of the current to obtain a suitable field.
  • Switch off the current, then check again the value until reaching a suitable value.