Sökning: "ladle furnace"

Visar resultat 1 - 5 av 15 avhandlingar innehållade orden ladle furnace.

  1. 1. Slag, Steel, Ladle and Non-metallic Inclusions Equilibria in an ASEA-SKF Ladle Furnace

    Författare :Kamrooz Riyahimalayeri; Malin Selleby; Johan Björkvall; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Clean steel; Top slag; Non-Metallic Inclusions; Oxides; Vacuum Degassing; Deoxidation; Desulphurization; Equilibrium; Computational Thermodynamics; Scanning electron microscopy;

    Sammanfattning : This study explores the possibility of prediction and modification of some of the physicochemical properties of non-metallic inclusions by considering top slag-steel-ladle equilibria in an ASEA-SKF ladle furnace. To test the reliability of an available computational thermodynamic computer program, the first sub project was done. LÄS MER

  3. 2. Modeling of the ladle furnace with emphasis on electromagnetic phenomena

    Författare :Jonas Alexis; KTH; []
    Nyckelord :;

    Sammanfattning : .... LÄS MER

  4. 3. Parameters influencing inclusion compositions in Al-killed steel melts during a secondary refining process

    Författare :Takanori Yoshioka; Andrey Karasev; Pär Jönsson; Joohyun Park; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; non-metallic inclusion; ladle furnace; RH; thermodynamics; contact angle; Al2O3; MgO•Al2O3 spinel; calcium aluminate; CaS.;

    Sammanfattning :      This study was carried out to clarify the factors influencing the evolution of inclusions in Al-killed steel melts during a secondary refining process. First, a case-hardening steel was the subject of study to understand the factors influencing the inclusion compositions in the steel melt. LÄS MER

  5. 4. Formation and Chemical Development of Non-metallic Inclusions in Ladle Treatment of Steel

    Författare :Kristina Beskow; KTH; []
    Nyckelord :Metallurgy; Steel making; Ladle Treatment; Inclusion chemistry;

    Sammanfattning : The present study was carried out to investigate theformation and chemical development of non-metallic inclusionsduring ladle treatment of steel.To begin with, an investigation of the deoxidation processand the impact of aluminium addition was carried out. For thispurpose, a new experimental setup was constructed. LÄS MER

  7. 5. Solubility of hydrogen in slags and its impact on ladle refining

    Författare :Jenny Brandberg; Du Sichen; Mia Almcrantz; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Other materials science; Övrig teknisk materialvetenskap;

    Sammanfattning : The aim of the present work was to clarify the mechanisms of hydrogen removal during vacuum degassing. The main reason for this was because the primary source of hydrogen pick-up in steel-making is the moisture in the furnace atmosphere and the raw material charged into the ladle furnace. LÄS MER