An ultrasonic method that relies on analysing the grain size of the steel microstructure – to
improve the quality control of the heat treatment of its moulded carbon steel valves.
Cetim is expert in most NDT techniques, including characterisation methods. It
can offer solutions that best fit customer requirements. Our approach, undertaken
in consultation with the customer, results in “turnkey” applications.
Quick and easy NDT
The Cetim-Trius solution makes it possible to analyse the metallographic structure (grain
size) of carbon steel products with an ultrasonic signal. Ifthe frequency spectrum of the signals returned by the opposite wall of the flange is of “lowfrequency” type, it means that the metallographic structure
is made of coarse grains, resulting from a non-compliant heat treatment. In fact, a noncompliant heat treatment may cause low toughness and, thus, poor impact resistance at low temperature.
In order to avoid these problems, Total asked Cetim to set up a quick heat treatment quality inspection method for valves.The Cetim-Trius solution is comprised of a rugged tablet equipped with an ultrasonic board and a probe.
Cetim-Trius results to be a significant source of productivity gain for quality inspection operations: a key factor which led H+ Valves to choose this solution.
Cetim is proficient with most NDT techniques used in defectology and for material characterisation.
Cetim-Trius is an opportunity for Cetim to prove its ability to develop products, from feasibility study