Improvements in the quality of slab steelFunded under: FP4-BRITE/EURAM 3
An AST conventional caster has been used to gain an insight into meniscus behaviour when casting steel at high velocities. The mould of this caster is equipped with several thermocouples. Analysis of their data reveals a strong dependence among temperatures, their standard deviations and steel level position; these have a strong relationship with surface waviness. Numerical fluid dynamics models were also used to study the effect of slab thickness on waviness. The project has determined the effect on slab quality of steel composition, superheat, casting speed, mould taper, slab thickness, SEN design and oscillating device used. The work has defined the most suitable mould powders in terms of steel grade, casting speed and superheat. The presence of transversal and longitudinal depressions has been minimized, since these have an adverse effect on slab quality.
Bibliographic Reference: EUR 18428 IT (1998) 121pp.
Availability: Available from OOPEC Sales agents
ISBN: ISBN 92-828-4652
Record Number: 199910063 / Last updated on: 1999-02-19
Original language: it
Available languages: it