Abstract
As a partial solution of the differential equation of the continuous caster pass line, the analytical relationship between the basic radius and the lengths of the radial and unbending zones was derived. Choosing rationally the length of the unbending zone at a given unbending strain rate, it is possible to reduce the height of a high productivity caster and the ferrostatic pressure within the strand shape to eliminate internal cracking. The software developed allows the temperature, stress, and strain distribution in the strand shell to be determined and, for assumed allowable strains due to bulging and unbending, the caster profile and the positioning of support and unbending rollers to be optimised. For the case of a continuous caster with a vertical mould, the same technique for its profile optimisation was proposed.
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