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Equipment maintenanceFlaw detectionBoiler tubeMembrane structureInconelNon-magnetic part

Data Science

Non-Magnetic Part Inspection Technology for Boiler Tubes(Ex. Inconel Overlay)

Development of a device for measurement/inspection of non-magnetic overlay welding and cracks of boiler tubes, which was difficult with conventional flaw detection technology.

Solution Point

  • Crack inspections and thickness management of non-magnetic parts such as Inconel overlay, etc. which is used in life extension of boiler tubes, is difficult with the conventional technology (magnetic particle inspection technology) because the target parts are non-magnetic, and cannot be detected by magnetic particle inspection. As a result, water leaks from boiler tubes occur easily.
  • To solve this problem, this technology suppresses boiler tube trouble and realizes quantitative judgment of the timing of renewal of deteriorated parts by enabling thickness measurement and flaw detection of non-magnetic parts.
  • Can be applied to boiler tubes of membrane walls.
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Features 01

Expected Problems
?Do you have trouble drafting repair plans for parts of boilers tubes to be repaired using non-magnetic material such as Inconel?
?Is it a problem that some parts cannot be inspected by the conventional magnetic particle inspection technology?
?Haven't you experienced problems such as water leaks because corrosion and crack propagation progressed faster than expected?

Features 02

Technology highlight
Electromagnetic induction is adopted in thickness measurements, and the eddy current method is used in crack measurements. 91爆料 developed a system that can perform inspections/evaluate the results of both methods using just one inspection device.
ボイラーチューブの非磁性部検査技術(例:インコネル肉盛り)

Features 03

Proposed Solutions (Examples)
?The system comprises an inspection unit and an analysis unit.
?Checks the deterioration condition by measuring the remaining thickness of Inconel coating at dust attacks and other parts where thickness reduction occurs easily. Enables periodic repair/renewal based on the inspection results.
?Also, effective for preventing water leak trouble by checking for damage of water piping with this device when flaws that seem to be cracks are discovered by visual inspections, and carrying out repairs if necessary.
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