ROTOFLUX® MULTICHANNEL MFL

Nondestructive Flux Leakage Test Systems That Accurately Show Defects in Heavy Wall Magnetic TubingRotoflux-NDT

  • Accurately tests oil country tubular goods (OCTG), bars and parts at test speeds up to 700 FPM.
  • Offers 24 separate channels for longitudinal and 48 channels for transverse defect detection.
  • LRFX rotaries use transverse magnetism to find longitudinal defects such as seams, laps and weld line defects.
  • TRFX rotaries use longitudinal magnetization and provide 100% surface coverage to detect transverse defects.
  • Both rotary types detect pits, scabs, slivers, gouges, roll-ins, cracks and holes depending on defect orientation.
  • Differentiates between OD and ID defects.
  • Detects longitudinal and transverse defects as small as 5% on OD and ID, depending upon material type and condition.
  • System provides 100% surface coverage to detect transverse defects.
  • Systems are available to test up to 500mm diameter and 19mm wall thickness tubes.

MAC’s Rotoflux® Multiplex Electronics—Magnetic Flux Leakage testing that provides superior technology, performance and versatility.

Read More

MAGNETIC FLUX LEAKAGE TECHNOLOGY IN NDT

Magnetic Flux Leakage (MFL) nondestructive test systems accurately detect defects in heavy-wall magnetic tubing, including oil country tubular goods (OCTG).

These electromagnetic test methods are also used to inspect high-permeability ferromagnetic metals such as carbon steel bar, plate, wire rope and parts. The method can also be used to detect ferritic inclusions in non-ferritic material.

  • For typical OCTG and other heavy wall tube tests, Flux Leakage technology detects longitudinal and transverse defects as small as 5% on OD and ID, as well as defects within the wall, depending upon material type and condition.
  • MFL inspection uses a DC magnetizing field to create enough flux density to bring the material to near-saturation. A transverse magnetizing field is used to detect longitudinally oriented defects, while a longitudinal field is used to find transverse defects.
  • Surface or internal conditions such as cracks, pits, seams and other defects interrupt the flux field and “leak” beyond the product surface.
  • This leakage flux is detected by flux sensor probes with MAC configured rotary inspection devices which can wirelessly transmit this data to the instrumentation for processing and analysis.

Read More