Non-Destructive Test

Service Description

Non-destructive testing from TDC – ensures the safe and efficient operation of your equipment and assets by detecting defects before they result in severe damage, and assures compliance with international standards. Ultrasonic testing (UT) is a family of non-destructive testing techniques based on the propagation of ultrasonic waves in the object or material tested. In most common UT applications, very short ultrasonic pulse-waves with center frequencies ranging from 0.1-15 MHz, and occasionally up to 50 MHz, are transmitted into materials to detect internal flaws or to characterize materials. A common example is ultrasonic thickness measurement, which tests the thickness of the test object, for example, to monitor pipework corrosion. Ultrasonic testing is often performed on steel and other metals and alloys, though it can also be used on concrete, wood and composites, albeit with less resolution. It is used in many industries including steel and aluminium construction, metallurgy, manufacturing, aerospace, automotive and other transportation sectors. Magnetic Particle Testing (MT) is a common surface inspection technique based on inducing a magnetic field on the surface of a ferromagnetic material and spreading a powder or solution concentrated with magnetic particles that will align with the magnetic field. A crack will act as a dipole magnet for the magnetic particles to cluster. This technique is used for surface or just below the surface discontinuity detection. Liquid Penetrant Testing (PT/LPI) is one of the most commonly used conventional testing methods. It is used to detect surface breaking flaws on nonporous materials such as metals, plastics or ceramics. Two products are essential to perform the inspection: penetrant and developer. Liquid Penetrant Testing is widely used in aeronautic, steel structure fabrication and aluminum industry for welded or forged parts or castings.

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