Return to search

Řízené naplynění taveniny a jeho vliv na vlastnosti a strukturu odlitků ze slitin hliníku / Controlled melt gassing and its influence on properties and structure of aluminum alloy castings

The first chapter of the thesis deals with the occurrence of gases in the aluminum melt, what are their sources, what is the solubility of hydrogen in the aluminum melt and the formation of gas cavities. The second chapter divides the defects caused or associated with the presence of gases in the casting. They can be bubbles, shrinkage, or diluents. Pore morphology and its influence on mechanical properties are discussed. The third chapter deals with methods of melt degassing, either by vacuuming, bubbling with active or inert gases, or using special methods and preparations. In the fourth chapter methods for determination of hydrogen content in aluminum melt are divided into analytical methods, methods based on Sieverts law and indication methods. The fifth chapter deals with controlled gassing, its objectives and the preparations used for this purpose. The sixth chapter describes the experiment where the influence of the amount of Probat Fluss Micro 100 on the different casting thicknesses and its results were investigated using a test casting.

Identiferoai:union.ndltd.org:nusl.cz/oai:invenio.nusl.cz:416639
Date January 2020
CreatorsJagošová, Adriana
ContributorsLuňák, Milan, Kaňa, Václav
PublisherVysoké učení technické v Brně. Fakulta strojního inženýrství
Source SetsCzech ETDs
LanguageCzech
Detected LanguageEnglish
Typeinfo:eu-repo/semantics/masterThesis
Rightsinfo:eu-repo/semantics/restrictedAccess

Page generated in 0.0016 seconds