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Flux Leakage Inspection Systems

 FLUX LEAKAGE TESTERS

Magnetic Flux leakage (MFL) non destructive test systems accurately detect defects in heavy-wall magnetic tubing, including oil country tubular goods (OCTG), and parts. Systems are available in sizes to handle up to 16" (406 mm) diameter tubes. Magnetic flux leakage testing technology allows detection of transverse and longitudinal surface defects on the OD and ID as well as defects within the wall.

ROTARY FLUX LEAKAGE

Magnetic Analysis Corp.'s Rotoflux® electronics are used with a rotary system where the material under test is driven through a rotating headplate. During testing, an electromagnet creates intense flux flow around the material. When a defect interrupts and blocks some of the flux lines, they extend beyond the material creating "leakage flux" that can be detected by the electronics.


ROTOFLUX®
Flux Leakage Tester


Rotoflux® Flux Leakage System for Heavy Wall Tube & Pipe

Rotoflux® Flux Leakage System for Heavy Wall Tube & Pipe

The electronics are capable of differentiating between ID and OD defects, using a unique multiprobe feature which allows convenient operation at greater speed. A flux measurement circuit is included to indicate whether the test piece is properly saturated. To detect longitudinal defects, the material under test is driven through rotating headplates that include transverse magnetizing coils and test probes.

MAC also offers Rotoflux systems to detect transverse defects where the magnetizing poles are placed in a fixed position perpendicular to the axis of the material under test, and the sensors are rotated around the test piece.

Tubing up to 16" (406 mm) in diameter and 3/4" (19 mm) wall thickness can be handled.

This magnetic flux leakage ndt test system accurately detects longitudinal defects in heavy-wall magnetic tubing, including oil country goods, and tubular parts.
 


Typical Application: 

Detection and differentiation of ID and OD defects in heavy-wall magnetic tubing and tubular products, such as oil well pipe. Longitudinal and Transverse defects, as small as 5% on OD and 5% on ID, depending on material type and condition can be detected.

PDF File:  RFX_2011.pdf
For Use With:  Bars and RodsTubing


DEMAGNETIZERS

475 Demagnetizer Water Cooled Coil

475 Demagnetizer Water Cooled Coil

Demagnetizers are used in metal manufacturing plants to eliminate residual magnetism in the test material after the flux leakage test is completed, or for similar applications where high speed reduction of residual magnetism is required. MAC Demagnetizers can handle bar, tube or wire material ranging up to 8.5" (215 mm) diameter.Models include:

 
Low Power for up to 1.75" (44 mm) Diameter Light Material such as thin wall tube and small parts
· Model 200 Demagnetizer - AC power only - Ambient Air Cooled
 
1 KVA Power for 1.75", 4.75" or 5.75" (44, 114, 146 mm) Diameter Material
· Models 470/471 - Ambient Air Cooled
 
Medium Duty 4 KVA Power for 4.5" (114 mm) Diameter Material:
· Model 475 - Water or Air Cooled (Air cooled coils can be used on some thin walled     tubing)
 
Heavy Duty 25 KVA Power for 3.75", 4.75" or 5.75" (95, 114, 146 mm) diameter material - Requires continuous supply of water for cooling. Contact MAC for specific water and power requirements.
· Model 400
 
Extra Heavy Duty 75 KVA for 7.5" or 8.5" (190, 215 mm) diameter material
· Model 750 Demagnetizer. Requires continuous supply of water for cooling. Contact MAC for specific water and power requirements.

MAC's experienced Field Engineers can recommend the most appropriate demagnetizing equipment for your applications.


Typical Application: 

Used to eliminate residual magnetism in the test material after the eddy current or flux leakage test is completed, or for similar applications where high speed reduction of residual magnetism is required

PDF File:  Demagnetizer 20101.pdf
For Use With:  Bars and RodsMetal PartsTubingWire


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