CC process optimization through an improved thermal modeling of the cast steel products
- IRSID, Maizieres les Metz (France)
Heat transfer models developed for continuous casting are more and more becoming simulation tools for defining, from metallurgical criteria, the values of casting parameters (superheat, primary and secondary cooling, casting speed,...) in order to obtain quality products (free from surface cracks and having a low level of central segregation) in the framework of a given production. From this outlook, it is important to have reliable models for the description of the basic mechanisms (heat transfer, microsegregation) as well as for the values relative to the thermophysical data to be used (thermal conductivity, density, enthalpy,...). The studies conducted by IRSID in these fields have made it possible to define the improvements to be brought to the thermal models of continuous casting that are already available. In the first part of this paper, the principles of the improvements brought to the basic models are presented in detail: mathematical formulation taking into account the evolution of the thermal conductivity and the density of steel with temperature, introduction of the microsegregation model adapted to various steel grades (low carbon steels, high carbon steels, stainless steels,...) and selection of the thermophysical data (thermal conductivity, density, enthalpy) with respect to the steel grade. In the second part, some industrial applications of the new model for heat transfers in continuous casting are presented.
- OSTI ID:
- 577504
- Report Number(s):
- CONF-9704181-; ISBN 1-886362-23-8; TRN: IM9809%%118
- Resource Relation:
- Conference: 56. Ironmaking conference proceedings, Chicago, IL (United States), 13-16 Apr 1997; Other Information: PBD: 1997; Related Information: Is Part Of Ironmaking conference proceedings: Volume 56; PB: 781 p.
- Country of Publication:
- United States
- Language:
- English
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