Nerazorna ispitivanja

Non-destructive testing (NDT) includes a number of analysis techniques used to evaluate the properties of a material, part, product, weld or system without causing damage to the article being evaluated. NDT techniques are frequently used in a variety of engineering applications, including forensic, mechanical, electrical, civil, systems, aerospace and aeronautical as well as medical applications.

NDT techniques do not damage or permanently alter the article being inspected, making them efficient and cost-effective analysis methods in product evaluation, troubleshooting and research. NDT techniques are particularly useful in ensuring the quality of finished products when employed during critical stages of the manufacturing or fabrication process.

CCRE is fully equipped to provide custom testing and assessment services to address unique application specifications. We also offer NDT testing and analysis services at customer site locations and in the field to provide maximum flexibility. We can provide you with complete and valuable data based on well-designed procedures and highly trained and certified NDT inspectors.

Our scope of services at a glance

NDT techniques of inspection which we can offer are:

  • Visual inspection
  • Inspection with liquid penetrants (visible and fluorescent)
  • Inspection with magnetic particles (dry, wet black and wet fluorescent)
  • Conventional and Phased Array ultrasonic inspection

Vizualna ispitivanja

As the name might imply, visual inspection is the most fundamental of nondestructive testing methods. It often requires nothing more than sufficient light to illuminate the material surface being examined and the well-trained eyes of an experienced inspector (sometimes assisted by a magnification lens, or lens system that provide easier access to remote surfaces).

LIQUID PENETRANT TESTING (PT)

Liquid penetrant testing (PT) uses visible or fluorescent dyes to identify imperfections and discontinuities in any product fabricated from non-porous materials, particularly non-magnetic materials. In PT, the selected dye is applied to the surface being evaluated. After a pre-determined period, the excess dye is removed from the surface, and the surface is allowed to dry. A separate developing chemical is then applied to the surface, and its interaction with any remaining dye indicates the presence of a surface discontinuity. When fluorescent dyes are used, the inspection of the surface being evaluated is conducted under ultraviolet light. The use of visible dyes requires only normal (i.e., white) lighting for inspection.

PHASED ARRAY ULTRASONIC TESTING (PAUT)

Phased array ultrasonic testing (or PAUT) electronically modifies the acoustic probe characteristics of conventional transducers. PA testing units use multiple elements in a single housing, excited at specific intervals, to generate uniform wave fronts at specific angles. Electronic images are then created from the received ultrasonic energy, allowing for the identification of defects and their location.

Your benefits at a glance

CCRE NDT services have various benefits, including:

  • Benefit from working with a single source supplier
  • Save time and money
  • Gain customer confidence
  • Stay ahead of technical developments