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Non-Destructive Inspection Services

03 November 2017

Certified weld inspectors have access to a wide range of non-destructive inspection services. Sure, a weld flaw can be visually detected, but even the keenest eye can’t see beyond a solid surface. NDT inspection services are designed to ‘see’ beyond the visible light spectrum. They use special sensors and scanning arrays to accomplish this impressive feat. Deemed a key inspection service, just what is this cutting-edge equipment all about?

Why is Non-Destructive Testing (NDT) Important? 

If a pressure vessel or engineering asset is mechanically certified and commissioned, it’s classed as ready to install. How reckless would it now be to tear into a section of that metal frame? Even if the test involved nothing more than the removal of a maintenance hatch, the equipment could be compromised by this action. NDT procedures inspect weld seams and materials for flaws without altering the equipment configuration. Furthermore, these tests can be conducted while the equipment is on-site and locked into its processing framework, which represents a benefit that can’t always be offered by a more disruptive inspection routine.

Designing the Electronic Instrumentation 

Imagine a range of non-destructive services that inspects welds for subsurface flaws. The equipment discovers microcrystalline defects in the sheet metal, locates imperfect welds, and seeks out hidden joint flaws. On the surface, that metal may look perfect, but below that surface, there could be a weak spot. NDT services use radiographic inspections and ultrasonic instruments to look through the solid material. They peer deep into the microscopic realm so that the contents of a metal component can be evaluated. Technologically speaking, the techniques employed here can detect any material imperfection, no matter how far below the surface that flaw is located.

Trained in All NDT Analysis Procedures 

Entire chapters in engineering manuals are reserved for this critically important discipline. The science begins with liquid dye penetrants, then it takes flight with eddy current detection technology and radiographic scanning. Those latter sensory checks are commonly employed in hospitals as biological imaging procedures. Indeed, this field uses X-Ray science, radio waves, sound waves, and every other conceivable wave type on the electromagnetic spectrum. Equipped with a computer brain, the technically advanced tools can even create images of the subsurface scattering effect, just like an X-Ray.

If intelligently managed engineering resources have been exhausted while fabricating pressure-capable vessels and load-bearing structures, then those parts obviously are not meant to be compromised after they’ve been installed. Non-destructive inspection services allow engineers to conduct their weld and material analyzing routines without modifying those parts. Furthermore, the NDT routines look deeper than the human eye, so deep that they harmlessly peer past solid surfaces and into the potentially flawed internal geometry of a weld joint or a material form.

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