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Wyszukujesz frazę "tundish ladle" wg kryterium: Temat

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    Wyświetlanie 1-3 z 3
    Tytuł:
    The Influence of Technological Parameters of X70 Stainless Steel Ladle Refining on the Residual Content of Non-Metallic Inclusions
    Autorzy:
    Babanin, A.
    Babanina, O.
    Bilousov, V.
    Komarov, B.
    Pashchuk, D.
    Shalapko, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/381636.pdf
    Data publikacji:
    2015
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    non-metallic inclusions
    secondary refining
    ladle furnace
    tundish ladle
    wtrącenia niemetaliczne
    rafinacja wtórna
    piec kadziowy
    Opis:
    It is demonstrated that during secondary refining at the ladle furnace the carbon content of steel and the residence time of the metal in the ladle exert a significant impact on the residual content of non-metallic inclusions (NMI) in steel. Mathematical calculations showed that the dynamic forces have minor effect on the motion of small sized NMI, making it difficult to penetrate deep into the slag.
    Źródło:
    Archives of Foundry Engineering; 2015, 15, 3; 5-10
    1897-3310
    2299-2944
    Pojawia się w:
    Archives of Foundry Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Influence of Modern Ladle Shroud on Hydrodynamic Structure in One Strand Slab Tundish
    Autorzy:
    Bartosiewicz, M.
    Cwudziński, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/352375.pdf
    Data publikacji:
    2020
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    continuous steel casting
    tundish
    ladle shroud
    liquid steel flow
    turbulence models
    Opis:
    In the presented work, the numerical simulations results of the liquid steel flow in the one strand tundish were shown. Influence of the modification and immersion depth in the liquid steel of the ladle shroud and subflux turbulence controller on hydrodynamic structure of the liquid steel movement in the working space of tundish were examined. The ladle shroud shape modification consisted on the decompression and compression of the main supplying stream of the tundish. The mathematical model used in the numerical simulations through physical modeling and industrial trials were validated. The numerical simulation results (using four variants of the modified ladle shroud immersion depth in the liquid steel) in the isothermal conditions using laboratory experiments on the water model were verified. Whereas, the numerical simulation results (using one of the tundish research variant) for non-isothermal were compared with the results from the industrial measurements. Three turbulence models: Realizable k-ε, RNG k-ε and SST k-ω were used in the computer calculations (performed via the Ansys-Fluent computer program). In order to obtain the actual view of the liquid steel flow hydrodynamic structure in the examined tundish for the two mathematical models using different turbulence models, which were most similar to the laboratory experiments and industrial measurements, the numerical simulations were performed in the non-isothermal conditions. The application in the computer calculations of the SST k-ω turbulence model caused the smallest differences between the numerical simulations, laboratory experiments and industrial measurements. Performed tests showed that ladle shroud can be used as a flow control device and the modified ladle shroud immersion at a depth of 0.1 m in the liquid steel caused the shortest range of the transition zone among the tested cases.
    Źródło:
    Archives of Metallurgy and Materials; 2020, 65, 1; 27-37
    1733-3490
    Pojawia się w:
    Archives of Metallurgy and Materials
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Influence of Multihole Ladle Shroud Construction on the Liquid Steel Flow in the One-strand Tundish during CSC Process
    Autorzy:
    Suchan, Hanna
    Cwudziński, Adam
    Powiązania:
    https://bibliotekanauki.pl/articles/2134116.pdf
    Data publikacji:
    2022
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    one-strand tundish
    ladle shroud
    numerical simulation
    hydrodynamic conditions
    continuous casting process
    Opis:
    The tundish prevents unsteady flow affecting on the steel cleanness and temperature. The presented article offers a new design of a ladle shroud (LS) with three holes placed in a special dome (separating the steel flow) steeped in a metal bath. Various options of the LS construction were analysed, as well as its positioning in the tundish in relation to its longitudinal axis. The conducted numerical simulations enabled to assess the impact of the designed ladle shroud on the flow of liquid steel through the tundish. The results showed that the best option is to use the LS with two larger holes and one smaller which activates the flow structure and reduces the rate of the liquid steel velocity in the tundish, limiting the flow turbulence.
    Źródło:
    Archives of Metallurgy and Materials; 2022, 67, 3; 1151--1160
    1733-3490
    Pojawia się w:
    Archives of Metallurgy and Materials
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-3 z 3

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