Publication detail

Temperature Field and Solidification Structure of a Ductile-Cast-Iron Roller

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

Czech title

Teplotní pole a struktura tuhnutí válců z tvárné litiny

English title

Temperature Field and Solidification Structure of a Ductile-Cast-Iron Roller

Type

journal article - other

Language

en

Original abstract

The quality of the working rollers from ductile-cast-iron used for rolling rails is determined by the chemical and structural composition of the material of the rollers and the production technology. The requirements of the quality cannot be ensured without perfect knowledge of the course of solidification, cooling and heat treatment of the cast rollers as well as the kinetics of the temperature field of the casting and mould. Tying on to the results of the model of the temperature field of the cast rollers, an original methodology was developed for the measurement of chemical microheterogeneity. The chemical and structural heterogeneity of the cast roller is therefore a significant function of the method of melting, modification and inoculation and the successive procedures of risering, casting and crystallization after cooling.

Czech abstract

Kvalita pracovních válců z tvárné litiny používaných pro válcovací tratě je určena chemickým a struktturálním složením materialu válců a technologií výroby. Požadovaná kvalita nemůže být dosažena bez znalosti průběhu tuhnutí a chladnutí válců a průběhu teplotního pole odlitku a formy. V návaznosti na výsledky řešení teplotního pole válců je vyvinuta originální metodika měření chemické mikroheterogenity. Chemická a strukturální heterogenita válců je významnou funkcí metody odlévání, úprav a očkování, uspořádání nálitku a formy a krystalizace v průběhu chladnutí.

English abstract

The quality of the working rollers from ductile-cast-iron used for rolling rails is determined by the chemical and structural composition of the material of the rollers and the production technology. The requirements of the quality cannot be ensured without perfect knowledge of the course of solidification, cooling and heat treatment of the cast rollers as well as the kinetics of the temperature field of the casting and mould. Tying on to the results of the model of the temperature field of the cast rollers, an original methodology was developed for the measurement of chemical microheterogeneity. The chemical and structural heterogeneity of the cast roller is therefore a significant function of the method of melting, modification and inoculation and the successive procedures of risering, casting and crystallization after cooling.

Keywords in Czech

Tvárná litina, válec, tuhnutí, chemická a strukturální heterogenita, metoda měření

Keywords in English

Ductile-cast-iron, roller, solidification, chemical and structural heterogeneity, methodology for measurement

RIV year

2013

Released

18.11.2013

Publisher

Trans Tech Publications

Location

Switzerland

ISSN

1662-9795

Volume

2014

Number

592-593

Pages from–to

197–200

Pages count

4

BIBTEX


@article{BUT102970,
  author="František {Kavička} and Jana {Dobrovská} and Karel {Stránský} and Bohumil {Sekanina} and Josef {Štětina},
  title="Temperature Field and Solidification Structure of a Ductile-Cast-Iron Roller",
  year="2013",
  volume="2014",
  number="592-593",
  month="November",
  pages="197--200",
  publisher="Trans Tech Publications",
  address="Switzerland",
  issn="1662-9795"
}