Search for dissertations about: "induction-stirring"

Found 5 swedish dissertations containing the word induction-stirring.

  2. 1. Growth and Removal of Inclusions During Ladle Stirring

    Author : Mats Söder; KTH; []
    Keywords : inclusions; ladle; gas-stirring; induction-stirring; secondary refining; bubble flotation;

    Abstract : The growth and removal of inclusions in stirred ladles hasbeen studied. First, the importance of different growthmechanisms suggested in the literature were studied. Simulationresults from a fundamental model of an induction-stirred ladlehave been used as input in the calculations. READ MORE

  4. 2. Study of the slag-metal interaction in ladle treatment

    Author : Pranesh Dayal; Du Sichen; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Materials science; slag-metal; mixing; interface; induction stirring; gas stirring; ladle treatment; Materialvetenskap; Materials science; Teknisk materialvetenskap;

    Abstract : .... READ MORE

  5. 3. Modeling of induction stirred ladles

    Author : Mayur Pal; Pär Jönsson; Pavel Ramirez Lopez; KTH; []
    Keywords : induction ladle; electromagnetic; Lorentz forces; magnetic stirrer; magnetic diffusion; Navier-Stokes; FEM;

    Abstract : Over the years numerous computational fluid dynamics models have been developed in order to study the fluid flow in gas and induction stirred ladles. These models are used to gain insight in the industrial processes used in ladle treatment of steel. A unified model of an induction stirred Ladle in two and three dimensions is presented. READ MORE

  6. 4. Influence of Stirring on the Inclusion Characteristics during Vacuum Degassing in a Ladle

    Author : Charlotte Médioni; Pär Jönsson; Robert Eriksson; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Vacuum degassing treatment; inclusions; ladle eye; stirring intensity; denitrogenization; desulphurization.;

    Abstract : Steel cleanliness as a function of stirring practice during vacuum degassing treatment have been investigated in industrial studies at the steel plants of SSAB Special Steels in Oxelösund and Uddeholm AB in Hagfors. The cleanliness was examined with regards to the contents of sulphur, nitrogen and large inclusions (>10µm). READ MORE

  7. 5. Modelling Approaches of Multiphase Phenomena Focusing on an Integrated Steelmaking Route

    Author : Reza Safavi Nick; Pär Jönsson; Björn Glaser; Dong-Yuan Sheng; Stein Tore Johansen; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Materials Science and Engineering; Teknisk materialvetenskap;

    Abstract : Improvements in numerical methods and developments of computer hardware brought attention to the modelling of metallurgical processes. This has been a critical step in understanding in-furnace conditions throughout the ironmaking and steelmaking process since it is, if not impossible, extremely difficult to conduct measurements during the process. READ MORE