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Modernization of welding processes in nuclear power plants
Jochymek, Tomáš ; Slováček, Marek (referee) ; Kubíček, Jaroslav (advisor)
The theses is focused on the use of innovative welding method in the repair of the sealing surface of the valve of the Temelín nuclear power plant. After considering all the options, the use of mechanized manual TIG method was chosen for the implementation. In the experimental part, the design of the repair was made on a test sample, where the cladding was performed with a welding set from EWM. Subsequently, verification was carried out by non-destructive testing, where visual inspection, dimensional inspection and capillary testing were carried out. From the destructive testing, a macrostructure check and a Vickers hardness test were performed. As a result of the evaluation, due to the satisfactory tests and the time saving, the proposed repair technology was found to be suitable for solving the problem.
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