Search for dissertations about: "Continuous Casting"

Showing result 11 - 15 of 50 swedish dissertations containing the words Continuous Casting.

2. 11. Theoretical magnetohydrodynamic and solidification studies of continuous strip casting

   Author : Hans B. Löfgren; Luleå tekniska universitet; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Strömningslära; Fluid Mechanics;

   Abstract : The continuous casting of steel strips has been under investigation and development for several decades. The aim of this development is to be able to cast steel strips in a thickness range from 1 to 10 mm. Today, there are basically two such methods: the single-belt caster and the twin-roll caster. READ MORE

4. 12. On the surface quality of continuously cast steels and phosphor bronzes

   Author : Saud Saleem; Hasse Fredriksson; Michael Vynnycky; Toshihiko Emi Takaido Higashi; KTH; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Continuous Casting; Steels; Ni-based alloy; Peritectic; Phosphor Bronzes; Simulation and Modeling; Teknisk materialvetenskap; Materials Science and Engineering; Industriell ekonomi och organisation; Industrial Engineering and Management; Metallurgical process science; Metallurgisk processvetenskap;

   Abstract : This thesis work concerns about the importance of the cast surfaces, surface phenomenon such as the formation of the oscillation marks and exudation and related defects including cracks and segregation that happened during the continuous casting. All of the investigated materials were collected during the plant trials while an in-depth analysis on these materials was performed at the laboratory scale with certain explanations supported by the schematic and theoretical models. READ MORE

5. 13. Effect of swirling blade on flow pattern in nozzle for up-hill teeming

   Author : Line Hallgren; Pär Jönsson; Jonas Alexis; KTH; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; swirling flow; up-hill teeming; nozzle; casting; fluid flow; modelling; CFD; LDA.; Metallurgical process engineering; Metallurgisk processteknik;

   Abstract : The fluid flow in the mold during up-hill teeming is of great importance for the quality of the cast ingot and therefore the quality of the final steel products. At the early stage of the filling of an up-hill teeming mold, liquid steel enters, with high velocity, from the runner into the mold and the turbulence on the meniscus could lead to entrainment of mold flux. READ MORE

6. 14. Modeling of magnetohydrodynamic turbulence

   Author : Ola Widlund; KTH; []
   Keywords : turbulence model; magnetohydrodynamic; mhd; magnetohydrodynamic turbulence; computational fluid dynamics; continuous casting;

   Abstract : Conventional one-point turbulence closures have beenextended with an additional transported scalar for modeling ofmagnetohydrodynamic (MHD) turbulence. The new scalar, α ,captures the length scale anisotropy and tendency towardstwo-dimensionality, which is characteristic feature of MHDturbulence, and allows accurate modeling of the Jouledissipation of turbulence. READ MORE

7. 15. Lithium Ion Conductive Membranes Based on Co-continuous Polymer Blends

   Author : Anette Munch Elmér; Centrum för analys och syntes; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; Polymerteknik; Polymer technology; biopolymers; conductivity measurements; in-situ UV-polymerisation; solution casting; poly methyl methacrylate ; vinylidene fluoride copolymers; poly ethylene carbonate-co-ethylene oxide methacrylate; PEG methacrylate macromonomers; heterogeneous polymer blends; polymer electrolyte membranes; lithium salt containing gels;

   Abstract : There is a growing need for multifunctional polymeric materials for the development of several important energy conversion technologies. For example, the polymer electrolyte is a key component in lithium polymer batteries. The basic functions of this electrolyte are to efficiently conduct the lithium ions and physically separate the electrodes. READ MORE