Aplikace statistických metod při analýze kvality orientovaných transformátorových pásů

Abstract

This thesis is focused on statistical analysis of the production process of grain oriented electrical steel strips in company ArcelorMittal Frýdek-Místek a.s. The aim of the thesis is to use the statistical methods and to analyze the process. The objective is to compare the selected contractors and determine the minimum number of measurements that experiment divergent technologies must have so that it can be verified at the agreed level of reliability that the achieved difference parameter, for example Δ p1,7T= 0.05W/kg, is statistically significant. In the first section of this thesis a theoretical introduction is first made to the areas related to the problem. The second part is formed by practical part with a defined problem, working with data and their evaluation. In the end of the second part the process problems are identified and their treatment is designed.