Adaptive control device for double-roll thin-strip continuous casting casting-roll side sealing plate

Abstract

The invention provides a novel control method of the vibration of a double-roll thin-strip continuous casting casting-roll side sealing plate. Side sealing plate vibration self-adaptive control equipment is composed of side sealing plates, a four-bar linkage, a hydraulic cylinder, a servo valve, a displacement sensor, a proximity switch, a pressure sensor, a programmable controller (PLC), a human-machine interface (HMI) and the like. In a continuous casting process, two casting rolls and two side sealing plates located on the end surfaces of the casting rolls form a molten pool, and molten steel is poured in and condensed into strip steel to be sent out of the molten pool through the rotation of the casting rolls and cooling. Through the reciprocating movement of the side sealing plates, the molten steel on the end surfaces of the casting rolls and the condensed steel strip are beaten, the vibration force generated by the beating can improve the condensing quality of the strip steel, through adaptive control, gaps between the side sealing plates and the end surfaces of the casting rolls are guaranteed, the friction between the side sealing plates and the end surfaces of the castingrolls is reduced, and the service life of the casting rollers and the side sealing plates is prolonged.

Description

technical field [0001] The invention relates to the field of thin strip continuous casting, in particular to the self-adaptive control of the vibration of the side sealing plates of twin-roll thin strip continuous casting rolls. Background technique [0002] At present, the side seals of the domestic twin-roll thin strip continuous casting rolls are usually fixed, that is, before casting, the side seals are adjusted to the set position according to the process requirements and then locked. When casting starts, the end surface of the casting roll will expand due to heat, and the side seal plate will also expand and deform after being heated. The plate will also cause wear to the end face of the casting roll, affect the service life of the side sealing plate and the casting roll, and also cause edge cracks on the edge of the casting belt, which will affect the product quality. Contents of the invention [0003] The invention mainly changes the working mode of the side seali...

AI Technical Summary

Problems solved by technology

When casting starts, the end face of the casting roll will expand due to heat, and the side seal plate will also expand and deform after being heated, and the side seal plate will come into contact with the end face of the casting roll, and the rotation of the casting roll will cause wear, which will not only damage the side seal The plate will also cause wear to the end face of the casting roll, affect the service life of the side sealing plate and the casting roll, and also cause edge cracks on the edge of the casting belt, affecting product quality

Images