Continuous steel slab casting technology under severe conditions leading to reduction of surface defects
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Registration Number: |
25985 |
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Title: |
Continuous steel slab casting technology under severe conditions leading to reduction of surface defects |
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Outcome guarantor: |
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Author: |
ŠTĚTINA, J. |
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Type: |
B verified technology |
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Publication date: |
12.12.2011 |
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Institution: |
Energy Institute, Faculty of Mechanical Engineering, Brno University of Technology |
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Abstract: |
In connection with the ever increasing demands on surface quality of rolled plates was necessary to increase the quality of cast slabs finish secondary cooling. To design, optimize and validate this change is only possible using the thermal model continuous casting. The new cooling technology will be achieved by higher temperatures and thus will reduce the surface defects and thus limit the subsequent shredding. Modification of secondary cooling, including recommendations on technical solutions to achieve higher temperatures of the upper surface while maintaining the smallest temperature gradients. This technical solution was to reduce the surface defects, it leads to refine or even elimination of shredding, depending on the thickness of rolled sheet metal, particularly in quality for demanding applications (under acidic conditions and equipment for oil anchored off the coast - offshore structures) The whole process of continuous casting technology and optimization of secondary cooling and is observed specified predictive model. At the same time monitoring of deviations from the program limits LITIOS carried through to the online model of temperature field, enabling faster response to any deviations and again will increase the quality of the resulting slab. Was also checked cast steel grades and their integration into a new thermal model and proposed that technological conditions for their casting. |
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Project: |
NETME Centre |
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