Detail publikace

Operational experiences with the optimization of secondary cooling

Originální název

Operational experiences with the optimization of secondary cooling

Anglický název

Operational experiences with the optimization of secondary cooling

Jazyk

en

Originální abstrakt

Surface temperatures of cast slabs at small radius segments in front of as well as at the unbending point belong to parameters that affect the surface quality of continuously cast slabs. Older machines for continuous casting were designed with regard to the performance (to amount of cast slabs) rather than to the quality. Therefore, the adaptation of secondary cooling is required in order to accomplish the desired surface temperatures. The modification consists in the dynamic control of secondary cooling, surface temperatures monitoring by means of the numerical model of temperature field as well as in a prospective replacement of cooling nozzles. The paper deals with relationships of described influences and their impacts to the temperature field of cast slabs. The results are presented for the 1530x250 mm slabs that are cast in Evraz Vitkovice Steel where the main authors dynamic 3D solidification model is used to control the production. The results and experiences obtained after the replacement of cooling nozzles are compared to long-time operational data for the preceding setup of cooling nozzles. The comparison is performed with the use of data acquired from the dynamic solidification model and with the use of the statistical operational data.

Anglický abstrakt

Surface temperatures of cast slabs at small radius segments in front of as well as at the unbending point belong to parameters that affect the surface quality of continuously cast slabs. Older machines for continuous casting were designed with regard to the performance (to amount of cast slabs) rather than to the quality. Therefore, the adaptation of secondary cooling is required in order to accomplish the desired surface temperatures. The modification consists in the dynamic control of secondary cooling, surface temperatures monitoring by means of the numerical model of temperature field as well as in a prospective replacement of cooling nozzles. The paper deals with relationships of described influences and their impacts to the temperature field of cast slabs. The results are presented for the 1530x250 mm slabs that are cast in Evraz Vitkovice Steel where the main authors dynamic 3D solidification model is used to control the production. The results and experiences obtained after the replacement of cooling nozzles are compared to long-time operational data for the preceding setup of cooling nozzles. The comparison is performed with the use of data acquired from the dynamic solidification model and with the use of the statistical operational data.

Dokumenty

BibTex


@inproceedings{BUT108151,
  author="Josef {Štětina} and Tomáš {Mauder} and Lubomír {Klimeš} and Miloš {Masarik}",
  title="Operational experiences with the optimization of secondary cooling",
  annote="Surface temperatures of cast slabs at small radius segments in front of as well as at the unbending point belong to parameters that affect the surface quality of continuously cast slabs. Older machines for continuous casting were designed with regard to the performance (to amount of cast slabs) rather than to the quality. Therefore, the adaptation of secondary cooling is required in order to accomplish the desired surface temperatures. The modification consists in the dynamic control of secondary cooling, surface temperatures monitoring by means of the numerical model of temperature field as well as in a prospective replacement of cooling nozzles. The paper deals with relationships of described influences and their impacts to the temperature field of cast slabs. The results are presented for the 1530x250 mm slabs that are cast in Evraz Vitkovice Steel where the main authors dynamic 3D solidification model is used to control the production.  The results and experiences obtained after the replacement of cooling nozzles are compared to long-time operational data for the preceding setup of cooling nozzles. The comparison is performed with the use of data acquired from the dynamic solidification model and with the use of the statistical operational data.",
  address="Austrian Society for Metallurgy and Materials (ASMET)",
  booktitle="Proceedings of the 8th European Continuous Casting Conference ECCC 2014",
  chapter="108151",
  howpublished="electronic, physical medium",
  institution="Austrian Society for Metallurgy and Materials (ASMET)",
  year="2014",
  month="june",
  pages="1181--1190",
  publisher="Austrian Society for Metallurgy and Materials (ASMET)",
  type="conference paper"
}