23-72 METODĂ DE CONTROL NEDISTRUCTIV AL VASELOR DE PRESIUNE RIDICATĂ


NDT METHOD FOR HIGH-PRESSURE VESSELS
The high-pressure vessels are widely used in technique. Their safeoperating
without damage represents a major demand. Taking for example the
Oxygen-, Nitrogen-, or natural gas vessels, one of their main cause/motive of
damage consists of the punt-corrosion (bottom-corrosion), which leads to the
drastically reduction (shortening) of their life-time, respectively it will
compromise their working in safety conditions. The widely-used periodical
testing methods, mainly in advance of their refilling with the working agent, are
nor sure, nor efficiently. The authors propose a simply new NDT testing
protocol, based on the Moiré-Fringe Method, but it can be applied successfully
using the Digital Correlation one. There are also described two original testing
benches. The proposed methodology will assure a high-efficiently monitoring
and good traceability of the tested vessels, respectively such controlling
method, which will not diminish their initial life-times.
Cuvinte cheie: control nedistructiv, vase de presiune, metoda franjelor
moiré
Keywords: NDT, high-pressure vessel, moiré-fringe method

23-72 METODĂ DE CONTROL NEDISTRUCTIV AL