Detail publikačního výsledku

Breakout of a Slab as the Result of Changes in the Thermo-physical Properties of Continuously Cast Steel

KAVIČKA, F.; DOBROVSKÁ, J.; STRÁNSKÝ, K.; SEKANINA, B.; ŠTĚTINA, J.; MAUDER, T.; MASARIK, M.

Originální název

Breakout of a Slab as the Result of Changes in the Thermo-physical Properties of Continuously Cast Steel

Anglický název

Breakout of a Slab as the Result of Changes in the Thermo-physical Properties of Continuously Cast Steel

Druh

Článek recenzovaný mimo WoS a Scopus

Originální abstrakt

The so called secondary cooling zone is an important part of the continuous casting machine. In this zone a breakout may occur due to an increase of the local and temperature heterogeneity of steel, resulting from an increase of the stress caused by bending of the slab and by high local concentration of non-metallic slag inclusions. Changes of the chemical composition of steel during continuous casting are particularly dangerous. In the event that two melts are cast one right after another, i.e. if the melt of steel with chemical composition A ends and it is immediately followed by the steel B, it may automatically stop the CCM and an atypical breakout may take place. It happened during continuous casting of the slab. 250x1530 mm in the area of straightening, 20 minutes after flying change of tundish. In the present paper, by employing the dimensional analysis, eight dimensionless numbers are derived. If the values of this dimensionless numbers for two immediately followed steels significant differs, the atypical breakout may take place.

Anglický abstrakt

The so called secondary cooling zone is an important part of the continuous casting machine. In this zone a breakout may occur due to an increase of the local and temperature heterogeneity of steel, resulting from an increase of the stress caused by bending of the slab and by high local concentration of non-metallic slag inclusions. Changes of the chemical composition of steel during continuous casting are particularly dangerous. In the event that two melts are cast one right after another, i.e. if the melt of steel with chemical composition A ends and it is immediately followed by the steel B, it may automatically stop the CCM and an atypical breakout may take place. It happened during continuous casting of the slab. 250x1530 mm in the area of straightening, 20 minutes after flying change of tundish. In the present paper, by employing the dimensional analysis, eight dimensionless numbers are derived. If the values of this dimensionless numbers for two immediately followed steels significant differs, the atypical breakout may take place.

Klíčová slova

Steel slab, Continuous casting; Chemical and temperature heterogeneity; Breakout; Dimensionless number.

Klíčová slova v angličtině

Steel slab, Continuous casting; Chemical and temperature heterogeneity; Breakout; Dimensionless number.

Autoři

KAVIČKA, F.; DOBROVSKÁ, J.; STRÁNSKÝ, K.; SEKANINA, B.; ŠTĚTINA, J.; MAUDER, T.; MASARIK, M.

Rok RIV

2014

Vydáno

10.07.2013

Nakladatel

Wiley Pub.

ISSN

8756-758X

Periodikum

FATIGUE & FRACTURE OF ENGINEERING MATERIALS & STRUCTURES

Svazek

2013

Číslo

2

Stát

Spojené království Velké Británie a Severního Irska

Strany od

1

Strany do

10

Strany počet

10

Plný text v Digitální knihovně

http://hdl.handle.net/

BibTex

@article{BUT101060,
  author="František {Kavička} and Jana {Dobrovská} and Karel {Stránský} and Bohumil {Sekanina} and Josef {Štětina} and Tomáš {Mauder} and Miloš {Masarik}",
  title="Breakout of a Slab as the Result of Changes in the Thermo-physical Properties of Continuously Cast Steel",
  journal="FATIGUE & FRACTURE OF ENGINEERING MATERIALS & STRUCTURES",
  year="2013",
  volume="2013",
  number="2",
  pages="1--10",
  doi="10.1111/ffe.12075",
  issn="8756-758X"
}