Optimisation of the quality of continuously cast billets required for subsequent technological processing.
Optimisation technology of continuous steel casting,
ensuring billet quality for subsequent casting. Development
of original models and systems for the required assortment
and their verification in industrial operation at the ccm.
The project target is to optimise the continuous casting of
steel technique that would ensure the required quality of
ingots for subsequent processing. The original models and
systems developed, specified and verified by experimental
measurements on industrial continuous casting machines
(CCM) for the commercial assortment, will be used to
optimise the technology.
The numerical program must solve a non-stationary 3D
temperature field of the 'ingot-mould' system, or
'ingot-CCM ambience'. This requires the measurement of
necessary values in the course of the continuous casting
process and would enable us to obtain the data necessary
for optimisation of the process of solidification and their
projection into the calculating model. Data collected
systematically from individual CCMs and technological data
will be analysed by the developed methodology. In this way
it would be possible to draw the solution most closely to
the real conditions of the specific industrial operation
and ensure the necessary inter-relationship between the
chain 'real process-entry data acquisition-numerical
analysis-optimisation-real process correction'.
Samples would be simultaneously taken from cast slabs for
subsequent analysis of heterogeneity of constitutive
elements (Mn, Si, etc.) and impurities (P, S, etc.) in
characteristic areas of the solidified slab. The results of
the measurement with electron micro-probe would serve as
basis for the determination of the distribution curves of
dendritic segregation of investigated elements, as well as
efficient element distribution coefficients between the
liquid and solid phase. This approach would make it
possible to evaluate in advance critical spots of slabs
from the viewpoint of their increased susceptibility to
crack and fissure formation.
A system of quality prediction attested by the project
proponents on the real CCM would be used for verification
of the technological impact of the optimisation resulting
from both models.
Keywords: continuous casting, quality prediction,
technological optimisation.
Acronym:
CONMOD
Project ID:
1 867
Start date:
01-02-1998
Project Duration:
36months
Project costs:
1 000 000.00€
Technological Area:
Market Area:
Research Institute
Large company