Search for dissertations about: "Ladle treatment"

Showing result 6 - 10 of 31 swedish dissertations containing the words Ladle treatment.

  2. 6. Some aspects of non-metallic inclusions during vacuum degassing in ladle treatment : with emphasize on liquid CaO-Al2O3 inclusions

    Author : Young Jo Kang; Du Sichen; Takahiro Miki; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; non-metallic inclusions; ladle refining; vacuum degassing; ladle glaze; spinel; SiO2 activity; agglomeration; cold model; open-eye; inclusion removal; Metallurgical process engineering; Metallurgisk processteknik;

    Abstract : The present thesis was to study non-metallic inclusions during vacuum degassing in ladle treatment. Emphasize was mostly given to liquid CaO-Al2O3 inclusions. A series of industrial experiments were carried out at Uddeholm Tooling AB, Hagfors, Sweden. To gain an insight into the industrial findings, laboratory investigations were also performed. READ MORE

  4. 7. The effect of ladle vacuum treatment on inclusion characteristics for tool steels

    Author : Karin Steneholm; Pär Jönsson; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Materials science; oxygen activity; inclusion characteristics; vacuum degassing; desulphurizatin; slag; ladle; Materialvetenskap; Materials science; Teknisk materialvetenskap;

    Abstract : .... READ MORE

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

    Author : Kristina Beskow; KTH; []
    Keywords : Metallurgy; Steel making; Ladle Treatment; Inclusion chemistry;

    Abstract : 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. READ MORE

  6. 9. Impact of aluminium addition on the chemistry of non-metallic inclusions in ladle treatment

    Author : Kristina Beskow; KTH; []
    Keywords : Ladle treatment; Inclusions; Nucleation; Aluminium addition;

    Abstract : .... READ MORE

  7. 10. A Study of Slag/Metal Equilibrium and Inclusion Characteristics during Ladle Treatment and after Ingot Casting

    Author : Hamid Doostmohammadi; Pär Jönsson; Lauri Holappa; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; inclusions; thermodynamics; ladle treatment; vacuum; tool steel; bearing steel; slag; equilibrium; slag carryover; oxides; sulfides.; Metallurgical process engineering; Metallurgisk processteknik;

    Abstract : Today, there is a high demand on clean steel for high performance materialproperties. Thus, steel producers try to deliver a steel product with the highestquality and cleanliness to the market. The number of parameters that affect thesteel cleanliness may vary depending on the required material properties of thefinal product. READ MORE