Two numerical models of a slab caster

• Autorzy: Štetina J. , Mauder T. , Kavicka F. , Franek Z. , Sekanina B.
• Języki publikacji: EN

Abstrakty

EN

Optimization and control of production of steel slabs on real casters, with the aim of achieving the maximum possible savings and product quality, is unthinkable without perfect knowledge of the course of solidification and cooling, which must be known with the aid of an on-line model of the transient temperature field of the concasting in real time. The on-line model is the basis for establishing the prediction system. An application server with its own database is established for acquiring the data files from three sources – from the steelworks information system, from the on-line model of the temperature field and the data on the quality of the final products (i.e. sheet-steel) from the rolling mill information system. A data warehouse is created of which the data will be processed statistically. Recommended limit values of the deciding parameters are established. Based on these limit values and the current state of the caster displayed on the computer screen in the control room, a new system is be designed for the control and correction of its operation. In the final step, a system for comprehensive prediction is established first. This system includes only really occurring defects. It must also be possible to enter new defects, including a definition of their cause/origin. Modern mathematical & statistical methods and artificial intelligence methods, based on knowledge acquisition from data, are used to predict defects.

Słowa kluczowe

EN

slab caster; temperature field; numerical on-line model; defects prediction

PL

płyta stalowa; temperatura; model

• Wydawca: Instytut Metalurgii Żelaza im. Stanisława Staszica
• Czasopismo: Prace Instytutu Metalurgii Żelaza
• Rocznik: 2009
• Tom: T. 61, nr 5
• Strony: 131--136
• Opis fizyczny: Bibliogr. 6 poz.

Twórcy

autor

Štetina J.

autor

Mauder T.

autor

Kavicka F.

autor

Franek Z.

autor

Sekanina B.

• Brno University of Technology

Bibliografia

• 1. Brimacombe J.K.: The Challenge of Quality in Continuous Casting Process, Metallurgical and Materials Trans, B, Volume 30B, 1999, pp. 553-566.
• 2. Miettinen J., Louhenkilpi, Laine J.: Solidification analysis package IDS. Proceeding of General COST 512 Workshop on Modelling in Materials Science and Processing, M. Rappaz and M. Kedro eds., ECSC-EC-EAEC, Brussels, Luxembourg 1996.
• 3. Richard A., Harding, Kai Liu, Beckermann CH.A: transient simulation and dynamic spray cooling control model for continuous steel casting, Metallurgical and materials transactions, volume 34B, pp 297-302, 2003.
• 4. Štětina J.: The dynamic model of the temperature field of concast slab. Ph.D. Thesis, Technical University of Ostrava, Czech Republic 2007.
• 5. Štětina J.: Optimization of casting parameters of billets using a temperature field model. Thesis, Technical University of Ostrava, Czech Republic 2008.
• 6. Štětina J.; Kavička F.; Dobrovská J.; Camek L.; Masarik M.: Optimization of a concasting technology via a dynamic solidification model of a slab caster. Materials Science Forum. 2005. 475-479(5). p. 3831 - 3834. ISSN 0255-5476.