Publication detail

The Character of the Solidification Structure of Massive Ductile Cast-Iron Castings and its Prediction

KAVIČKA, F. SEKANINA, B. ŠTĚTINA, J. STRÁNSKÝ, K.

Czech title

Charakter tuhnoucí struktury masivních odlitků z tvárné litiny a její predikce

English title

The Character of the Solidification Structure of Massive Ductile Cast-Iron Castings and its Prediction

Type

conference paper

Language

en

Original abstract

This paper deals with the simulation of solidification and cooling of a massive casting, with various ways of accelerated cooling using steel chills in order to reduce the heterogeneity of the pouring temperature field and to increase the rate of cooling of the casting. The results of the simulation of the temperature field are compared with experimentally measured temperatures. It seems that numerically controlled cooling enables the optimization of the technology of pouring of massive ductile cast-iron castings with spheroidal graphite. The relationships among four characteristic parameters and the corresponding local solidification times were determined in the series of samples that had been selected from defined positions of the massive casting.

Czech abstract

Příspěvek pojednává o simulaci tuhnutí a chlazení masivního odlitku při různých způsobech chlazení za použití chladítek. Cílem je snížení heterogenity teplotního pole odlitku a zvýšení intenzity chlazení. Výsledky simulace jsou porovnány s experimentálním měřením teplot. Numericky řízené chladnutí umožňuje optimalizaci technologie odlévání. Je odvozen vztah mezi čtyřmi charakteristickými parametry a místní dobou tuhnutí.

English abstract

This paper deals with the simulation of solidification and cooling of a massive casting, with various ways of accelerated cooling using steel chills in order to reduce the heterogeneity of the pouring temperature field and to increase the rate of cooling of the casting. The results of the simulation of the temperature field are compared with experimentally measured temperatures. It seems that numerically controlled cooling enables the optimization of the technology of pouring of massive ductile cast-iron castings with spheroidal graphite. The relationships among four characteristic parameters and the corresponding local solidification times were determined in the series of samples that had been selected from defined positions of the massive casting.

Keywords in Czech

Tvárná litina, masivní odlitky, optimalizace odlévání, materiálová struktura

Keywords in English

Ductile Cast-Iron, massive castings, optimization of the technology, material structure

RIV year

2012

Released

26.06.2012

Publisher

VUT v Brně

Location

Brno

ISBN

978-80-214-4529-1

Book

Sborník příspěvků mezinárodní konference Hydro/Termo (31. setkání kateder mechaniky tekutin a termomechaniky)

Edition number

1

Pages from–to

85–88

Pages count

4

BIBTEX


@inproceedings{BUT92779,
  author="František {Kavička} and Bohumil {Sekanina} and Josef {Štětina} and Karel {Stránský},
  title="The Character of the Solidification Structure of Massive Ductile Cast-Iron Castings and its Prediction",
  booktitle="Sborník příspěvků mezinárodní konference Hydro/Termo (31. setkání kateder mechaniky tekutin a termomechaniky)",
  year="2012",
  month="June",
  pages="85--88",
  publisher="VUT v Brně",
  address="Brno",
  isbn="978-80-214-4529-1"
}