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Welds are the most common type of permanent joints in all industrial sectors. There are many types of welds both in terms of welding methods (manual electric arc, automatic or semi-automatic, submerged arc, gas-shielded arc, electrical resistance welding, etc.), and in terms of joint configurations (butt, fillet, tee, lap welds). However, in most cases, irrespective of the welding method, welded joints are subject to quality testing at the end of welding. Flaw inspection is aimed at identifying various defects that lead to a weakened weld strength or poor leak tightness. Timely detection of such flaws significantly affects the determination of service life of a whole welded structure. The weld quality is particularly critical for high pressure vessels and systems, as well as for load-bearing structures.
One of the rail track ultrasonic testing (UT) features compared to the UT of another objects of the railroad transport is its multi-channeling at a variety of sounding schemes, and a large extension of the TO. As a result of this particular feature, it is more challenging for the operator to seize such volume of information in real time – the testing by the single-rail trolley UDS2-77 and double-rail trolleys UDS2-73, as a rule, is performed at a speed of 3-4 km/h – the operator's walking speed.
The strength, quality and reliability of rails during their operation is crucial for the railway industry.
Nowadays, the scores of continuous rails testing technologies are represented on the European, American, Australian and other markets – portable single- and dual-rail line trolleys, locomobiles and detector-cars. In most of them traditional sounding schemes are implemented that allow to test the rail head and the rail central cross-section
Eddy current non-destructive testing method is of paramount importance for technical diagnostics of aircraft parts.
Both the manufacture defects – the ones that appear in the process of production – and in-service defects of fatigue type may develop (fig.1) in various metal products. The cracks may develop at different angles to the surface growing to considerable depths thus causing the threat of a product breaking when in service.
"OKOndt ग्रुप" दुवनया भर में औद्योवगक ग्राहकों के वलए NDT उत्पादों के अनुसंधान, विकास और वनमाकण में 30 से अवधक िषों के अनुभि िाली कंपवनयों के एक समूह का प्रवतवनवधत्ि करता है, जो उच्च-स्तरीय पररचालन सुरक्षा, गुणित्ता और विश्वसनीयता सुवनवित करने का प्रयास करते हैं।
