Essays about: "steel melt"

Showing result 11 - 15 of 31 essays containing the words steel melt.

  1. 11. Treatment of a Liquid Al-Si Alloy : Quality Control and Comparison of Two Melt Degassing Processes

    University essay from Jönköping University/JTH, Material och tillverkning

    Author : Badreddin Radwan; [2020]
    Keywords : Dissolved Hydrogen; Degassing; Porosity; Grain Refinement; Eutectic Modification; Fluidity; Metallography; Thermal Analysis.;

    Abstract : Products manufactured by aluminium casting have become very popular and already replaced many parts that were once produced by iron and steel casting. This trends upwards especially in the automotive industry as it has become extremely important to reduce vehicle weight due to environmental requirements and economical aspects. READ MORE

  3. 12. A literature study on measurement methods for calculating the FeO activity in slag

    University essay from KTH/Materialvetenskap

    Author : Rebecca Rosén; [2020]
    Keywords : ;

    Abstract : During the time we live in, climate change is more important than ever. HYBRIT, formed bySSAB, LKAB, and Vattenfall, is an initiative set out to make the steel production fossil free, by developing a novel process that produce direct reduced iron (DRI) using hydrogen as reagent. Electric arc furnaces (EAF) will then be employed to melt the DRI. READ MORE

  4. 13. Investigation of the scale factor between full scale ladle furnace process and water models

    University essay from KTH/Materialvetenskap

    Author : Mathias Abelin; Håkan Blomkvist; [2020]
    Keywords : Ladle furnace; Modified Froude number; Two-phase gas plume; Water model scaling; Skänkmetallurgi; Froudes modifierade tal; Två-fas gasplym; Skalning av vattenmodell;

    Abstract : The ladle furnace process is an important process in the steel manufacturing industry. The purpose of this process is to optimize the composition of the elements in the melt as well as to homogenize the temperature in the liquid. It is common practice to model this process using smaller water models. READ MORE

  5. 14. Researching and Developing Universal Gas Purging Solutions

    University essay from KTH/Maskinkonstruktion (Avd.)

    Author : Ludvig Briheim; Dennis Ståhl; [2020]
    Keywords : Gas Purging Plug; Pipe Purging; Root Shielding; Shielding Gas; Pipe Welding; Rotgasplugg; Rotgasskydd; Skyddsgas; Rörsvetsning; Rörrengöring;

    Abstract : In the welding of more sensitive metals such as stainless steel, titanium and some specific nickel alloys, the presence and application of a protective gas is essential. Without the use of a nonreactive shielding gas, defects occur in or adjacent to the weld joint, which vary from light discoloration of the weld bead to the direct onset and propagation of cracks. READ MORE

  6. 15. Investigation into Melting Characteristics of Hydrogen-Reduced Iron Ore Pellets

    University essay from KTH/Materialvetenskap

    Author : Hedda Pousette; [2019]
    Keywords : Iron Ore Pellets; Sulphur; Phosphorous; Slag; Hydrogen Gas; Järnmalmspellets; Svavel; Fosfor; Slagg; Vätgas;

    Abstract : What kinetic and thermodynamic characteristics are established in a melt of hydrogen-reduced iron ore pellets? The pellets contain self-fluxing slag components which upon melting form an initial slag. Refining capabilities of this slag, such as dephosphorization power, are investigated in a lab-scale vertical furnace. READ MORE