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Wyświetlanie 1-2 z 2
Tytuł:
The Adjustment of the Tundish Water Model of Continuous Casting
Autorzy:
Blaško, Peter
Bulko, Branislav
Petrík, Jozef
Demeter, Peter
Socha, Vladimir
Hanáková, Lenka
Palfy, Pavol
Solc, Marek
Vasilňáková, Andrea
Powiązania:
https://bibliotekanauki.pl/articles/2048879.pdf
Data publikacji:
2022
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
steel
tundish
water model
continuous casting
statistical methods
Opis:
Whereas approximately 96.3% of the steel produced worldwide is made by continuous casting, great emphasis is put on the superior efficiency of this process. The water model of the tundish and mathematical modeling is often used for the simulation of the steel flow during continuous casting. The experiments were performed on a model of the tundish with two outlets, at two casting speeds (0.8 m.s-1 and 1.2 m.s-1). Eight setups of the tundish were evaluated, which differed in the design of the dams (with or without drainage holes), in their distance from the center of the tundish, and their height. The contribution of the work is the analysis of phenomena in the tundish water model in conditions of repeatability (ten repetitions). The goal is to find the setup providing the most symmetrical flow, with the minimum difference in the residence times Δτ on the two outlets. Taking into account the results obtained at both casting speeds, the most preferred is setup 2 with the 87 mm high dams placed 587 mm from the center of tundish (Δτ = 0.5). The setup 3 (Δτ = 8.25) appears to be the least appropriate. The higher the casting speed, the higher the number of unsuitable arrangements.
Źródło:
Archives of Metallurgy and Materials; 2022, 67, 1; 97-104
1733-3490
Pojawia się w:
Archives of Metallurgy and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Impact of corrosion effect on the quality and safety of refractory materials
Autorzy:
Šolc, Marek
Kotus, Martin
Grambalová, Eva
Kliment, Juraj
Palfy, Pavol
Powiązania:
https://bibliotekanauki.pl/articles/88547.pdf
Data publikacji:
2019
Wydawca:
Stowarzyszenie Menedżerów Jakości i Produkcji
Tematy:
refractory material
process
corrosion
requirements
materiał ogniotrwały
jakość
korozja
Opis:
The quality of refractory materials plays an important role especially in high temperature processes. In case of violation of qualitative properties of refractory materials, the safety of the use of the technological equipment in which these materials are used is compromised. The requirements on the quality of refractories and their properties are now high, as their operating life should be as long as possible. The aim of the article is to point out the quality of refractory material in contact with corrosive media, to analyze the technological factors that affect the quality and safety of technological equipment. An analysis of the refractory material, as well as the analysis of the melt was performed. Subsequently, an experiment was realized, which was evaluated by macroscopic analysis and chemical analysis. After the experiments, we found that the melt had penetrated the masonry and consequently created corrosion layers in the masonry. These layers have affected the life of the material and reduced the safety of the technological equipment in which they were used.
Źródło:
System Safety : Human - Technical Facility - Environment; 2019, 1, 1; 760-767
2657-5450
Pojawia się w:
System Safety : Human - Technical Facility - Environment
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-2 z 2

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