Search for dissertations about: "SSAB"

Showing result 1 - 5 of 20 swedish dissertations containing the word SSAB.

  1. 1. Multivariable control of a pneumatic conveying system

    University dissertation from Luleå : Luleå tekniska universitet

    Author : Wolfgang Birk; Luleå tekniska universitet.; [1999]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Reglerteknik; Control Engineering;

    Abstract : This licentiate thesis deals with a multivariable controller of a pneumatic conveying system. The industrial process used to illustrate design, analysis and implementation of a multivariable controller is the injection of fine coal into a blast furnace. READ MORE

  2. 2. Model-based leakage detection in a pressurized system

    University dissertation from Luleå : Luleå tekniska universitet

    Author : Andreas Johansson; Luleå tekniska universitet.; [1999]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Reglerteknik; Control Engineering;

    Abstract : Fault detection and isolation is a potentially powerful tool for achieving security and effective maintenance in various types of processes. The motivation for performing leakage detection in the coal injection plant is mainly the inflammability of pulverized coal. A leakage of air into an injection vessel could have catastrophic consequences. READ MORE

  3. 3. Adaptations of Products to Customers' Use Contexts

    University dissertation from Luleå : Luleå tekniska universitet

    Author : Fredrik Skarp; [2006]
    Keywords : SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; resources; relationship; product development; adaptations; steel industry;

    Abstract : This thesis deals with a suppliers efforts to make customers in industrial markets use new products where the supplier and customer have no previous business exchange. It takes a supplier perspective and studies products with more advanced features that compared to those currently used offer new opportunities for the customer. READ MORE

  4. 4. Modeling the microstructural evolution during hot working of C-Mn and of Nb microalloyed steels using a physically based model

    University dissertation from Stockholm : Royal Institute of Technology, School of Industrial Engineering and Management, Material Science and Engineering, Division of mechanical Metallurgy

    Author : Linda Lissel; [2006]
    Keywords : austenite; modeling; hot deformation; microstructure; evolution; static recrystallization; dynamic recrystallization; metadynamic recrystallization; Modellering av mikrostrukturutvecklingen hos mikrolegerade stål under varmdeformation;

    Abstract : Recrystallization kinetics, during and after hot deformation, has been investigated for decades. From these investigations several equations have been derived for describing it. The equations are often empirical or semi-empirical, i.e. READ MORE

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

    University dissertation from Stockholm : KTH Royal Institute of Technology

    Author : Charlotte Médioni; KTH.; [2015]
    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