Feeding of an ingot mould with steel in a semi-solid state
Project ID: 7210-CA/215Funded under: ECSC-STEELRES 7C
This work concerned the design and building of a system able to feed a steel slurry in a continuous casting mould. The two major aims were: - to remove the superheat in the casting nozzle, and - to produce a strong stirring motion in the nozzle, in order to maintain the steel fluidity at temperatures below liquidus and to avoid clogging of the feeding system. The first objective was attained by an original nozzle of Cu with internal water cooling, where the steel flows as a film along the walls. The application of electromagnetic stirring was studied to reach the second objective. Preliminary theoretical calculations were used to build an inverter and an inductor. Laboratory trials, blank and with liquid steel, showed that the stirring produced by this equipment was insufficient. The experimental characteristics of a new inductor compatible with the inverter were studied. The work was completed by the assessment of the operating limits in industrial conditions of the hollow jet nozzle without supplementary stirring.
Bibliographic Reference: EUR 13373 FR (1991) 61 pp., FS, ECU 7.50
ISBN: ISBN 92-826-2489-7
Record Number: 199110690 / Last updated on: 1994-12-02
Original language: fr
Available languages: fr