Flux Strips

Flux Strips

Magnetic Flux Indicator Strip Type A & Type G

  • Magnetic Flux Indicators are used to indicate the presence of induced magnetic fields during magnetic particle inspection.
  • Type A - For AEROSPACE COMPONENTS
  • Type G - For GENERAL ENGINEERING COMPONENTS

INSTRUCTIONS FOR USE

Flux indicators which respond to the tangential component of the field H in air above the surfaces of magnetized workpieces give excellent evidence of the direction(s) of the field. The indicators can only be used to give an estimate of the strength of the field when the workpiece 1s magnet1zed by the current flow technique, this is because when other methods of magnetization are used e.g. a coil, a magnetic field is created in the air _whether there is a ferromagnetic item present or not and the 10d1cator Will respond to such a field. This being so no semi-quantitative estimate of the field strength can be made.

  • Estimates of field strength can only be made when alternating current is used for magnetization.
  • Attach one indicator to the workpiece so that its long axis is in the same direction as that of any expected defects.
  • Attach a second indicator at right angles to the first.
  • Magnetize the workpiece in the normal way and apply magnetic particles.
  • A minimum of 3 seconds magnetization is needed to allow for particle migration before the indicators are inspected with the magnetizing current on.

NDT CONSULTANTS LTD

FOIL MAGNETIC FLUX INDICATORS TYPE A

  • INSTRUCTIONS FOR USE
  • These foil type indicators are designed for use in both critical and general engineering applications.
  • The foil type magnetic flux indicators are used to give a clear guide as to the d irection of a magnetic field and can be used to give an e~t ma e of the field strength H across surfaces magnetized for the application of Magnetic Particle inspection under the control of various standards Including B.S. 6072.