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Využití tavného svařování pro výrobu nerozebíratelných spojů u ocelových potrubí
 Tejkal, David
The master thesis is focused on using a fusion welding for non-detachable constructions of steel carbon pipes production. The first part of master thesis is focused on a selected recent welding technologies used for carbon pipes welding. The weldability of basic materials is always significantly affected by chemical structure and so-called carbon equivalent as well. The second part of thesis is dedicated to mechanical properties of welding joints in the dependence of carbon equivalent. The practical part of thesis is divided into several sections. The first section of the practical part consists in the preparation of few weldment samples using various technologies of fusion welding according to own choice. All the preparation of pipe samples and the weldments make out proceeds according to every single reserved welding criteria and specification. The pipe weldments are put to the single non-destructive and destructive tests to find out and analyse the quality of single welding joints. The penultimate part is dealing with mechanical and metallographic tests of single welding joints based on which he carries out the evaluation of welding joints. After getting the non-destructive and destructive tests of single welding joints done the resume evaluation of welding joints and illustration of the examples of their practical using in technical practice are carried out in regard of information that were gained from single inspections and tests.
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