Control device for dynamic soft reduction in slab continuous casting

Abstract

The invention discloses a control device for dynamic soft reduction in slab continuous casting. Through the arrangement of strong buffer springs, lower sliding blocks or a buffer lower pressing seat can have a certain vertically-upward buffer effect, thus, the rear ends of dynamic roller seats can have a certain buffer effect, thus, a continuous casting workpiece can be pressed step by step when moving from a rear pressing roller to a front pressing roller, the subsequent rigid pressing effect of the front pressing roller is facilitated through the elastic pressing of the rear pressing roller,dynamic pressing control is achieved, the performance of a continuous casting slab is guaranteed, the problems of internal defects of the casting slab and overlarge and over-concentrated strain in the straightening process are prevented, and the problem of generation of internal cracks of the continuous casting slab is reduced. Meanwhile, a certain favorable condition can be provided for increasing the casting speed of the continuous casting slab. Meanwhile, the vibration condition of the pressing rollers in the continuous casting process can be monitored in real time, and the working condition of a continuous casting machine can be conveniently monitored in real time.

Description

technical field [0001] Specifically, the invention relates to a control device for dynamic soft reduction of slab continuous casting, and relates to the relevant field of auxiliary equipment for continuous casting machines. Background technique [0002] For continuous casting of slabs, due to dynamic soft reduction, the continuous caster can control the final solidification stage, avoid loose center of slab and minimize segregation. Dynamic soft reduction produces slabs with the best intrinsic quality. As the principle of direct strip rolling from thin slabs has been successfully practiced around the world, iron and steel enterprises producing high-quality products have generally adopted soft reduction control technology. However, during the production of the slab under dynamic soft reduction, since the slab will be subjected to tension and pressure during the production process, when the pressure is not stable or the pressure changes rapidly, large cracks are likely to occ...

AI Technical Summary

Problems solved by technology

However, during the production of the slab under dynamic soft reduction, since the slab will be subjected to tension and pressure during the production process, when the pressure is not stable or the pressure changes rapidly, large cracks are likely to occur inside the slab. Problems such as cracks and large stress concentration affect the quality of the slab, thereby affecting the manufacturing rate of the slab, resulting in reduced precision and low efficiency

Images