Množství a vlastnosti okují v závislosti na podmínkách válcování a chemickém složení drátu

Abstract

This thesis is focused on the study of a scale layer formation on the surface of iron, re-spectively on the surface of low carbon steels. The main attention in the theoretical section is paid to the mechanism and kinetics of scale, composition and properties of the scale layer, then removing the scales from the surface through a process of pickling (in acids, in melts, electrolytes) and a mechanical removing of the scale. The practical part of the thesis focuses on the scale character during a cooling process of the wires or different chemical composition and diameter of the conveyor chain. The present work includes evaluating the microstructure of used materials, thickness measurement scale layers and weight loss during a manufacturing and a mechanical descaling of the wire. To observe the character of the scale layer wire has been used X-ray diffraction analysis and scanning electron microscopy (SEM) with EDX analysis.