At the end of last year, our colleagues were guests at the Mannheim University of Applied Sciences and gave a technical lecture on the topic of "Hardspot testing on heavy plates" as part of a virtual colloquium.
Our experts started the session with a presentation of our company. They illustrated our broad portfolio of services and the industries in which we operate to the students from the fields of automation and future mobility. They also presented our locations with a special focus on Stutensee, Alzenau and Frankenthal to the young scientists in the southern catchment area. It then turned to the topic that gave the presentation its name.
Hardspots are local hardening on the surface of heavy plates. They are caused, among other things, by local carbon accumulation near the surface, or by defects in the thermo-mechanical manufacturing process. The challenge: Hardspots in heavy plates can lead to cracking during forming or promote corrosion processes during the subsequent operation of the pipeline. An unacceptable condition for the critical infrastructure of a pipeline.
In order to check whether hardspots endanger the infrastructure, it is possible to detect them during production using classic mechanical measuring methods or mobile hardness testing. A disadvantage of these direct measurement methods is that they are very time consuming and prior surface treatment remains necessary. Damage to the surface can occur.
A current approach for an indirect testing method, as it is also used at ROSEN, is the electromagnetic measuring method, which is significantly faster, very easy to reproduce and suitable for automation. It can be combined with the direct measuring methods.
With this state-of-the-art testing procedure, ROSEN further ensures the protection of people and the environment in its services. This also inspired the students present, who listened intently to the technical lecture and asked interested follow-up questions.
Our colleagues also express their contentment: "From our point of view, it was a first very good step towards building up a network with the University of Applied Sciences Mannheim. We now want to further intensify this contact and, in best case, enable cooperation within projects. The goal would be, for example, to be able to offer students final theses at our southern locations in the future. We enjoyed the day of the event very much!"