Univerzitná knižnica - Vedecké odborné časopisy

Permanent URI for this communityhttps://drepo.uniza.sk/handle/hdluniza/27

Browse

Search Results

Now showing 1 - 2 of 2
  • Thumbnail Image
    Item
    Oxidické vrstvy a bifilmy v odliatkoch hliníkových zliatin
    (Žilinská univerzita v Žiline, 2023) Galčík, Marek; Brůna, Marek
    Surface of aluminium alloy melt is covered by an oxide layer when it is in contact with the surrounding atmosphere. When the oxide layer is retained on the surface of the melt it prevents the melt by hydrogen saturation. The oxide layer is harmful when it is submerged into the melt. The work focuses on the influence of the melt velocity on the bifilm formation, morphology of oxide layers and their influence on the porosity and filling the mold cavity.
  • Thumbnail Image
    Item
    Accompanying phenomena during casting of aluminium alloys
    (University of Žilina, 2023) Galčík, Marek; Brůna, Marek; Medňanský, Martin
    An oxide layer is formed on the surface of a molten aluminium alloy when it is exposed to the surrounding atmosphere. The oxide layer on the surface of the melt is not harmful. The problem occurs when it is entrained into the melt volume and solidifies in the casting. The paper deals with the formation of the oxide layer, its types and the formation of a double oxide layers.