Detail publikace

Experimentální ověření modelu reoxidace

ZÁDĚRA, A. KRUTIŠ, V. ŠENBERGER, J. KOVÁČ, M. KOLDA, V.

Originální název

Experimentální ověření modelu reoxidace

Český název

Experimentální ověření modelu reoxidace

Typ

článek v časopise - ostatní, Jost

Jazyk

cs

Originální abstrakt

Reoxidation of steel is a term for summary designation of secondary and tertiary oxidation of steel occurring during keeping the metal in a ladle after tapping it from a furnace and during casting in a mould cavity. During reoxidation the oxygen concentration and its activity in a casting are growing. In case that oxygen activity exceeds the equilibrium activity of oxygen with carbon the casting part or the whole casting can be afflicted with gas cavities of carbon monoxide. With higher oxygen activity the formations of oxides of elements with lower deoxidation ability (Mn, Si) continues. Those oxides can form in castings the extensive slaggy formations in their volume or on the casting surface designated as secondary slag inclusions. Thus the steel reoxidation directly influences surface and internal quality of steel castings and consequently the manufacturing costs too.

Český abstrakt

Reoxidation of steel is a term for summary designation of secondary and tertiary oxidation of steel occurring during keeping the metal in a ladle after tapping it from a furnace and during casting in a mould cavity. During reoxidation the oxygen concentration and its activity in a casting are growing. In case that oxygen activity exceeds the equilibrium activity of oxygen with carbon the casting part or the whole casting can be afflicted with gas cavities of carbon monoxide. With higher oxygen activity the formations of oxides of elements with lower deoxidation ability (Mn, Si) continues. Those oxides can form in castings the extensive slaggy formations in their volume or on the casting surface designated as secondary slag inclusions. Thus the steel reoxidation directly influences surface and internal quality of steel castings and consequently the manufacturing costs too.

Klíčová slova

ocelové odlitky, sekundární oxidace, aktivita kyslíku

Rok RIV

2009

Vydáno

18.04.2009

Nakladatel

Vysoká škola báňská - TU Ostrava

Místo

Ostrava

ISSN

1210-0471

Periodikum

Transaction of the VŠB-Technical university of Ostrava, Mechanical series

Ročník

52

Číslo

2

Stát

CZ

Strany od

355

Strany do

362

Strany počet

8

Dokumenty

BibTex


@article{BUT49521,
  author="Antonín {Záděra} and Vladimír {Krutiš} and Jaroslav {Šenberger} and Marek {Kováč} and Vlastimil {Kolda}",
  title="Experimentální ověření modelu reoxidace",
  annote="Reoxidation of steel is a term for summary designation of secondary and tertiary oxidation of steel occurring during keeping the metal in a ladle after tapping it from a furnace and during casting in a mould cavity. During reoxidation the oxygen concentration and its activity in a casting are growing. In case that oxygen activity exceeds the equilibrium activity of oxygen with carbon the casting part or the whole casting can be afflicted with gas cavities of carbon monoxide. With higher oxygen activity the formations of oxides of elements with lower deoxidation ability (Mn, Si) continues. Those oxides can form in castings the extensive slaggy formations in their volume or on the casting surface designated as secondary slag inclusions. Thus the steel reoxidation directly influences surface and internal quality of steel castings and consequently the manufacturing costs too.",
  address="Vysoká škola báňská - TU Ostrava",
  chapter="49521",
  institution="Vysoká škola báňská - TU Ostrava",
  journal="Transaction of the VŠB-Technical university of Ostrava, Mechanical series",
  number="2",
  volume="52",
  year="2009",
  month="april",
  pages="355--362",
  publisher="Vysoká škola báňská - TU Ostrava",
  type="journal article - other"
}