Publication detail

Structural heterogeneity of a gravitationally cast ductile-cast-iron roller

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

Czech title

Strukturální heterogenita gravitačně litých válců z tvárné litiny

English title

Structural heterogeneity of a gravitationally cast ductile-cast-iron roller

Type

book chapter

Language

en

Original abstract

Ductile cast-iron rollers are cast into cylindrical iron moulds. It is necessary to cast rollers with significantly improved utility properties. The requirements cannot be met without perfect knowledge of the course of solidification. It is necessary to use a numerical model of the temperature field of the entire system – comprising the casting, the mould and ambient. The kinetics of the solidification has a non-negligible influence on the chemical and structural heterogeneity of the cast-iron. An original methodology for the measurement of microheterogeneity had been developed – based on the results of the model of the temperature field of the cast rollers.

Czech abstract

Válce z tvárné litiny jsou odlévány ve válcových formách. Dosažení zlepšených vlastností odlitků není možné bez znalosti průběhu tuhnutí. Je nutné použít numerický model teplotního pole celého systému. Kinetika tuhnutí má nezanedbatelný vliv na chemickou a strukturální heterogenitu odlitků. Byla vyvinuta originální metodika měření mikroheterogenity založená na výsledcích modelu teplotního pole odlévaných válců.

English abstract

Ductile cast-iron rollers are cast into cylindrical iron moulds. It is necessary to cast rollers with significantly improved utility properties. The requirements cannot be met without perfect knowledge of the course of solidification. It is necessary to use a numerical model of the temperature field of the entire system – comprising the casting, the mould and ambient. The kinetics of the solidification has a non-negligible influence on the chemical and structural heterogeneity of the cast-iron. An original methodology for the measurement of microheterogeneity had been developed – based on the results of the model of the temperature field of the cast rollers.

Keywords in Czech

tvárná litina, gravitační lití, tuhnutí, teplotní pole, chemická a strukturální heterogenita

Keywords in English

ductile cast iron, gravitationally cast, solidification, temperature field, chemical and structural heterogeneity

Released

01.09.2008

Publisher

Pedagogical University of Cracow, Institute of Technology

Location

Krakow

ISBN

83-87331-48-1

Book

Problems of modern techniques in engineering and education

Edition number

1

Pages from–to

45–50

Pages count

6

BIBTEX


@inbook{BUT55272,
  author="Karel {Stránský} and František {Kavička} and Jana {Dobrovská} and Bohumil {Sekanina} and Josef {Štětina} and Jan {Glownia},
  title="Structural heterogeneity of a gravitationally cast ductile-cast-iron roller",
  booktitle="Problems of modern techniques in engineering and education",
  year="2008",
  month="September",
  pages="45--50",
  publisher="Pedagogical University of Cracow, Institute of Technology",
  address="Krakow",
  isbn="83-87331-48-1"
}