RFCS: Investigation of the effect of Ti on clogging of feeding systems

(TICLOGG) Investigation of the effect of Ti on clogging of feeding systems and its prevention for continuous slabcasting

Type of Project Research

Total Budget 1675591 €

EU Contribution 1005353 €

Duration (months) 42

Start Date 1/07/2014

End Date 31/12/2017

Ti-stabilised steels ULC steels are important due to their positive properties, but they are also problematic with regard to clogging occurrence. The mechanisms of inclusion formation, behaviour and deposition are not yet understood in detail although investigations were performed on European and International level. Against this background the main objectives of this proposal are achieving a better understanding of the mechanisms contributing to clogging as well as the exploitation of this enhanced knowledge focused on process and constructive measures leading to reduction/ prevention of clogging. Different methods will be applied: laboratory and plant trials, numerical computations and clogging simulator trials. The derived interaction between the different work packages is a promising concept for exchange of knowledge and results, e.g. the laboratory trials will provide information concerning clogging occurrence and clogging rate under realistic and reproducible conditions as well as wetting behaviour. This information will be an outstanding basis for the adjustment and verification of the mathematical/numerical models which will be applied on microscopic (focusing on the SEN) as well as macroscopic (including tundish outlet, feeding system, SEN and mould) scale. The numerical work is aiming at an improved and more realistic approach for investigation of the clogging phenomenon. As outcome of the proposed work an improved understanding of the mechanisms contributing to clogging phenomenon is expected. Adjusted concepts for operational praxis as well as constructive measures aiming at a further improvement of product quality and yield will be elaborated leading to concrete recommendations/guidelines for operational practices. Therefore the outcome of this research should provide a step beyond the state-of-the-art. It is expected to lead to production of steel with improved quality and an increased yield resulting from a lower risk of SEN clogging.