Analýza plechů používaných pro výrobu asynchronních elektromotorů

Abstract

The aim of this bachelor thesis is to analyze sheets made of dynamo steels, which are used for the production of components for asynchronous electric motors. The theoretical part characterizes concepts such as asynchronous electric motor, magnetic materials and dynamo sheets. The last chapter of the theoretical part deals with the production process of dynamo sheets. For the experimental part of the work, 2 samples of dynamo sheets were delivered, while each type was rolled in the longitudinal and transverse directions, so a total of 4 samples of sheets were used for research. The analysis was performed on a scanning electron microscope JEOL JSM-6490LV using the backscattered electron method, the documentation is created in BEI (backscattered electron imaging - material contrast), individual analyzes using an EDS analyzer Oxford INCA x-act. The microhardness measurement was performed on a LECO AMH 2000 type microhardness tester with a applied load of 50 grams.