Compound tubing
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 Structure of compound
tubing |
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Inspection: Identification of weld
seam defects in the internal metal layer of compound
tubing |
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Diameter: 10–60mm
(0.4–2.4") | |
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| To guarantee a defect-free compound tube, the intermediate
metal layer of aluminum or stainless steel is inspected for holes or
cracks. Usually, the weld seam of the internal tube presents a weak
spot and is tested using a segment
coil before the outer plastic layer is extruded over the metal.
The eddy current signals are transmitted to the eddy
current inspection equipment that evaluates it, identifies
defects, marks the damaged areas and documents the results for
future reference. | |
