System and method for hot billet pressure control for round billet continuous caster

Abstract

The invention discloses a system and a method for hot billet pressure control for a round billet continuous caster, and belongs to the technical field of steel-making and continuous-casting. The system comprises a parameter acquisition module, a first computation module, a second computation module, a first judgment module, a second judgment module, a third judgment module, a first adjusting module and a second adjusting module; the parameter acquisition module is used for acquiring performance parameters of the continuous caster, setting maximal surface indentation deformation, and setting initial surface indentation deformation and the deformation step length; the computation modules are used for computing the friction resistance of a crystallizer, the sliding power of continuous casting billets, the straightening force of continuous casting billets, the hot billet pressure, the withdrawal resistance and the friction resistance of support rolls according to the performance parameters of the continuous caster; the first judgment module is used for judging whether the initial surface indentation deformation is greater than the maximal surface indentation deformation; and the adjusting modules are used for acquiring the surface indentation deformation according to the initial surface indentation deformation and the deformation step length. The system and the method can effectively reduce the surface indentation of the round cast billets, and improve the quality of the round cast billets.

Description

technical field [0001] The invention belongs to the technical field of steelmaking and continuous casting, and in particular relates to a hot billet pressure control system and method for a round billet continuous casting machine. Background technique [0002] The research shows that the cause of the out-of-roundness defect of the round billet is mainly the deformation caused by two types of stress. One is thermal stress, which is mainly caused by uneven solidification on the annular section of the cast slab; the other is mechanical stress, which is mainly caused by the excessive pressure of the hot slab on the drawing and leveling rollers of the drawing and leveling machine. [0003] With the improvement of continuous casting technology, the development and application of new technology and new technology, great breakthroughs have been made in the uniform solidification of the slab, and the elliptical deformation caused by the uneven solidification of the slab has been bett...

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a hot billet pressure control system and method for a round billet continuous casting machine, which solves the technical problems of indentation and insufficient roundness of round billets prepared in the prior art

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