ECT System for Steel Pipe (Through type)

ECT System for Steel Pipe (Through type)

This ECT system, consisting of eddy current testing equipment, marking equipment and demagnetization equipment, automatically detects surface flaws on the steel pipe while pipe is being longitudinally transferred. After eddy current inspection, control number is marked on the good pipe by ink jet printer (IJP), and if a harmful flaw is detected, NG marking is done on the designated position of the pipe.

Features

  • Excellent detecting accuracy is realized due to improvement of S/N by the effect of magnetic saturation device
  • Fast inspection
  • Marking control number or NG mark on the pipe (Option)
  • In-line automatic ECT system to fit existing production line can be designed
Main Specification
Material to be inspectedCarbon steel, Alloy steel, Stainless steel
Outer diameter of pipe10-80 mm (tolerance±2 %)
Material conditionMetal structure shall be uniform
Surface conditionNormal temperature
Without weld bead
Free of water, oil and mill scale
Transfer speed60 m/min. (constant)
ProbeEncircling coil
FlawScab, roll mark
Detecting accuracyGroove and drill hole (JIS G 0568) artificial flaw (S/N : more than 3)
Electric powerAC 200 V ±10%, 3-phase, approx. 30 KVA
Air0.4 MPa, more than 1 m3/min. (dry)
Normal consumption : approx. 0.8 m3/min.
GroundingIndependent D-type